Antecedentes: Lobelia villaregalis fue descrita en 1987 a partir de una sola localidad en el Bosque La Primavera, Zapopan, Jalisco. En el año 2008 se registró otra localidad, lo que sugiere que el conocimiento sobre la distribución de la especie es incompleto. Preguntas: ¿Cuál es la distribución conocida y potencial de L. villaregalis en el Bosque La Primavera? ¿Cuál es su estado de conservación y cuáles las principales amenazas? Especies de estudio: Lobelia villaregalis T.J. Ayers. Sitio de estudio y fechas: Zapopan, Jalisco, 2018-2020. Métodos: Se realizaron exploraciones en el área natural protegida Bosque La Primavera para localizar poblaciones nuevas de la especie. Para caracterizar el hábitat y las amenazas que enfrenta la especie se registraron datos en campo y se complementaron utilizando sistemas de información geográfica. También se determinó su estado de conservación. La distribución potencial se obtuvo con Maxent. Resultados: Se registran en total seis sitios con presencia de L. villaregalis, los cuales se ubican en las zonas de manejo de mayor protección; Uso restringido y Recuperación. Sin embargo, la especie se encuentra En Peligro con un área de ocupación de 28 km². Los sitios están contiguos a campos de cultivo, asentamientos humanos, incendios forestales, entre otros. El área de distribución potencial estimada con variables climáticas fue de 160.051 km2, los sitios con probabilidades de uno fueron validados en campo, pero no se encontró la especie. Conclusiones: Lobelia villaregalis se encuentra en alto riesgo, se requieren acciones urgentes in situ y ex situ para su conservación.
{"title":"Distribución, estado de conservación y amenazas de Lobelia villaregalis (Campanulaceae) en el Bosque La Primavera, Jalisco","authors":"L. Hernández-López, Guadalupe Munguía-Lino","doi":"10.17129/botsci.3274","DOIUrl":"https://doi.org/10.17129/botsci.3274","url":null,"abstract":"Antecedentes: Lobelia villaregalis fue descrita en 1987 a partir de una sola localidad en el Bosque La Primavera, Zapopan, Jalisco. En el año 2008 se registró otra localidad, lo que sugiere que el conocimiento sobre la distribución de la especie es incompleto. \u0000Preguntas: ¿Cuál es la distribución conocida y potencial de L. villaregalis en el Bosque La Primavera? ¿Cuál es su estado de conservación y cuáles las principales amenazas? \u0000Especies de estudio: Lobelia villaregalis T.J. Ayers. \u0000Sitio de estudio y fechas: Zapopan, Jalisco, 2018-2020. \u0000Métodos: Se realizaron exploraciones en el área natural protegida Bosque La Primavera para localizar poblaciones nuevas de la especie. Para caracterizar el hábitat y las amenazas que enfrenta la especie se registraron datos en campo y se complementaron utilizando sistemas de información geográfica. También se determinó su estado de conservación. La distribución potencial se obtuvo con Maxent. \u0000Resultados: Se registran en total seis sitios con presencia de L. villaregalis, los cuales se ubican en las zonas de manejo de mayor protección; Uso restringido y Recuperación. Sin embargo, la especie se encuentra En Peligro con un área de ocupación de 28 km². Los sitios están contiguos a campos de cultivo, asentamientos humanos, incendios forestales, entre otros. El área de distribución potencial estimada con variables climáticas fue de 160.051 km2, los sitios con probabilidades de uno fueron validados en campo, pero no se encontró la especie. \u0000Conclusiones: Lobelia villaregalis se encuentra en alto riesgo, se requieren acciones urgentes in situ y ex situ para su conservación.","PeriodicalId":54375,"journal":{"name":"Botanical Sciences","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44515521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Germán Carnevali Fernández-Concha, J. Tapia-Muñoz, I. Ramírez‐Morillo, Rodrigo Duno-de Stefano
Background: Pavonia (Malvaceae) is a morphologically diverse genus with more than 200 species in America of which 32 have been previously reported in Mexico. In a field trip to the Reserva Estatal de Dzilam de Bravo, in northern Yucatan, a population of a Malvaceae species was detected that could not be unequivocally matched with any species known previously in the country. Questions: What is the identity of the Malvaceae species collected? Is it a taxonomic national or regional novelty? Species of study: Malvaceae, Malvoideae, Pavonia. Study site and dates: Yucatan Peninsula, Mexico, 2021–2022. Methods: Botanical specimens were collected and determined taxonomically through the use of specialized keys, and consulting of botanical collections. The conservation status was assessed using the IUCN methodology. Results: The specimens collected at the study site do not represent an undescribed species but instead Pavonia paludicola Nicolson ex Fryxell, which is a new record for Mexico. The species is assessed as Least Concern (LC) along its full distributional range whereas the Yucatan population is assessed as Data Deficient (DD) at this time. Furthermore, we offer a key to the two species of Pavonia in the Mexican portion of the Yucatan Peninsula, the second being P. schiedeana Steud., whose conservation status is assessed as Least concerned (LC). Conclusion: With the report of Pavonia paludicola, thirty-three species of the genus are now recognized from Mexico, two of which occur in the Mexican portion of the Yucatan Peninsula.
背景:锦葵属(malvacae)是一个形态多样的属，在美洲有200多种，其中墨西哥有32种。在对尤卡坦半岛北部的reserve Estatal de Dzilam de Bravo的实地考察中，发现了一种Malvaceae物种的种群，与该国以前已知的任何物种都不能明确匹配。问题:收集到的锦葵科物种的身份是什么?它是国家或地区分类学上的新事物吗?研究种:锦葵科，锦葵科，锦葵属。研究地点和日期:墨西哥尤卡坦半岛，2021-2022。方法:采用专业检索和查阅植物资料的方法，采集植物标本并进行分类鉴定。使用世界自然保护联盟的方法评估了保护状况。结果:在研究地点收集的标本不是一个未被描述的物种，而是Pavonia paludicola Nicolson ex Fryxell，这是墨西哥的新记录。该物种在其整个分布范围内被评估为最不受关注(LC)，而尤卡坦种群此时被评估为数据不足(DD)。此外，我们还提供了在尤卡坦半岛墨西哥部分的两个Pavonia种的钥匙，第二个是P. schiedeana Steud。，其保护状况评估为最少关注(LC)。结论:随着Pavonia paludicola的报告，该属现已在墨西哥确认了33种，其中2种分布在尤卡坦半岛的墨西哥部分。
{"title":"Pavonia paludicola (Malvaceae), a new record for Mexico","authors":"Germán Carnevali Fernández-Concha, J. Tapia-Muñoz, I. Ramírez‐Morillo, Rodrigo Duno-de Stefano","doi":"10.17129/botsci.3265","DOIUrl":"https://doi.org/10.17129/botsci.3265","url":null,"abstract":"Background: Pavonia (Malvaceae) is a morphologically diverse genus with more than 200 species in America of which 32 have been previously reported in Mexico. In a field trip to the Reserva Estatal de Dzilam de Bravo, in northern Yucatan, a population of a Malvaceae species was detected that could not be unequivocally matched with any species known previously in the country. \u0000Questions: What is the identity of the Malvaceae species collected? Is it a taxonomic national or regional novelty? \u0000Species of study: Malvaceae, Malvoideae, Pavonia. \u0000Study site and dates: Yucatan Peninsula, Mexico, 2021–2022. \u0000Methods: Botanical specimens were collected and determined taxonomically through the use of specialized keys, and consulting of botanical collections. The conservation status was assessed using the IUCN methodology. \u0000Results: The specimens collected at the study site do not represent an undescribed species but instead Pavonia paludicola Nicolson ex Fryxell, which is a new record for Mexico. The species is assessed as Least Concern (LC) along its full distributional range whereas the Yucatan population is assessed as Data Deficient (DD) at this time. Furthermore, we offer a key to the two species of Pavonia in the Mexican portion of the Yucatan Peninsula, the second being P. schiedeana Steud., whose conservation status is assessed as Least concerned (LC). \u0000Conclusion: With the report of Pavonia paludicola, thirty-three species of the genus are now recognized from Mexico, two of which occur in the Mexican portion of the Yucatan Peninsula.","PeriodicalId":54375,"journal":{"name":"Botanical Sciences","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46981694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bertha Yazmín González-Avilés, H. Reyes-Hernández, Laura Yáñez-Espinosa, Eleazar Carranza-González, J. A. De-Nova
Antecedentes: En la región de la Reserva de la Biosfera Sierra del Abra Tanchipa, la apicultura es una alternativa de producción sostenible. Su manejo, requiere conocer la riqueza, distribución y fenología de la flora melífera. Preguntas: ¿Cuáles son las especies melíferas del paisaje aledaño a la Reserva? ¿Cuál es su origen, forma de crecimiento, fenología y distribución? ¿Cómo es la riqueza en áreas naturales y perturbadas? Sitio y periodo de estudio: Área de influencia a la Reserva de la Biósfera Sierra del Abra Tanchipa, San Luis Potosí, México, agosto 2020 - marzo 2022. Métodos: Se recolectaron especies melíferas mensualmente en radios de pecoreo de seis apiarios, en diferentes tipos de vegetación. Se registró su forma de crecimiento, origen, recurso floral y fenología. Se comparó riqueza y composición de especies entre tipos de vegetación de áreas naturales y perturbadas. Resultados: Se registraron 191 especies melíferas; 91 nectaríferas, 16 poliníferas y 84 néctar-poliníferas. Fabaceae es la familia más representativa. La floración abunda en junio y septiembre, disminuye en enero y abril. El 49 % de especies habitan exclusivamente áreas perturbadas, 29 % áreas naturales, 22 % ambas. En áreas naturales 100 % son nativas, en áreas perturbadas 86 % son nativas y 14 % introducidas; en áreas naturales 70 % son árboles y en áreas perturbadas 57 % son hierbas. Conclusiones: La región presenta una gran riqueza de flora melífera nativa. La información generada permitirá a los apicultores mejorar el manejo de sus colmenas y valorar las áreas naturales de pecoreo.
背景：在Sierra del Abra Tanchipa生物圈保护区，养蜂是可持续生产的替代方案。它的管理需要了解梅利亚植物群的丰富性、分布和物候。问题：保护区附近的景观中有哪些哺乳动物？它的起源、生长方式、物候和分布是什么？自然和受干扰地区的财富如何？研究地点和期限：墨西哥圣路易斯波托西Sierra del Abra Tanchipa生物圈保护区的影响区，2020年8月至2022年3月。方法：每月在不同植被类型的六个养蜂场的Pecoreo半径上采集墨鱼物种。记录了其生长方式、起源、花卉资源和物候。比较了自然和受干扰地区植被类型之间的物种丰富度和组成。结果：共记录191种；91种蜜饯，16种多年生和84种多年生蜜饯。豆科是最具代表性的科。花期在6月和9月丰富，1月和4月减少。49%的物种只生活在受干扰的地区，29%的物种生活在自然地区，22%的物种生活在自然地区。在自然地区，100%是本地人，在受干扰的地区，86%是本地人，14%是引进的；在自然地区，70%是树木，在受干扰地区，57%是草药。结论：该地区有丰富的本土黑色素植物。产生的信息将使养蜂人能够改善对蜂箱的管理，并评估佩科雷奥的自然区域。
{"title":"La flora melífera del paisaje aledaño a la Reserva de la Biósfera Sierra del Abra Tanchipa, San Luis Potosí, México","authors":"Bertha Yazmín González-Avilés, H. Reyes-Hernández, Laura Yáñez-Espinosa, Eleazar Carranza-González, J. A. De-Nova","doi":"10.17129/botsci.3206","DOIUrl":"https://doi.org/10.17129/botsci.3206","url":null,"abstract":"Antecedentes: En la región de la Reserva de la Biosfera Sierra del Abra Tanchipa, la apicultura es una alternativa de producción sostenible. Su manejo, requiere conocer la riqueza, distribución y fenología de la flora melífera. \u0000Preguntas: ¿Cuáles son las especies melíferas del paisaje aledaño a la Reserva? ¿Cuál es su origen, forma de crecimiento, fenología y distribución? ¿Cómo es la riqueza en áreas naturales y perturbadas? \u0000Sitio y periodo de estudio: Área de influencia a la Reserva de la Biósfera Sierra del Abra Tanchipa, San Luis Potosí, México, agosto 2020 - marzo 2022. \u0000Métodos: Se recolectaron especies melíferas mensualmente en radios de pecoreo de seis apiarios, en diferentes tipos de vegetación. Se registró su forma de crecimiento, origen, recurso floral y fenología. Se comparó riqueza y composición de especies entre tipos de vegetación de áreas naturales y perturbadas. \u0000Resultados: Se registraron 191 especies melíferas; 91 nectaríferas, 16 poliníferas y 84 néctar-poliníferas. Fabaceae es la familia más representativa. La floración abunda en junio y septiembre, disminuye en enero y abril. El 49 % de especies habitan exclusivamente áreas perturbadas, 29 % áreas naturales, 22 % ambas. En áreas naturales 100 % son nativas, en áreas perturbadas 86 % son nativas y 14 % introducidas; en áreas naturales 70 % son árboles y en áreas perturbadas 57 % son hierbas. \u0000Conclusiones: La región presenta una gran riqueza de flora melífera nativa. La información generada permitirá a los apicultores mejorar el manejo de sus colmenas y valorar las áreas naturales de pecoreo.","PeriodicalId":54375,"journal":{"name":"Botanical Sciences","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48641506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jonás Álvarez‐Lopeztello, C. Robles, L. Hernández-Cuevas, R. F. del Castillo, M. Tejocote-Pérez, Facundo Rivera-Becerril
Background: Oaxaca, a southern State in Mexico, belongs to the Mesoamerican hotspot of biodiversity. The taxonomic and diversity knowledge of arbuscular mycorrhizal fungi (AMF) in Oaxaca State is scattered and accessibility to it is difficult. Questions: Which AMF species have been identified in Oaxaca and which is their distribution? Studied species: Arbuscular mycorrhizal fungi. Study site: State of Oaxaca, Mexico. Methods: It was prepared an updated and annotated checklist of the AMF species with frequency of occurrence and the sampling sites where the species had been registered. All studies carried out previously (to date, 2022) were considered. Information on AMF taxa was available in scattered form in different publications in physical and electronic media, theses, projects, technical reports, and scientific papers. Results: The checklist includes 78 species, distributed among 23 genera, 10 families, and four orders. The most diverse families were Glomeraceae (26 species), followed by Gigasporaceae (20) and Acaulosporaceae (15), whereas the most diverse genera were Acaulospora and Glomus (15 and eight species, respectively). The most frequent species were Funneliformis geosporus, Acaulospora scrobiculata, and A. spinosa. The highest species diversity has been reported under the rhizosphere of Agave angustifolia, A. karwinskii, and Zea mays (39, 36, and 34 species, respectively). A new AMF species was recently isolated from the rhizosphere of a microendemic agave. Conclusions: The recorded AMF species of Oaxaca State confirms its position as one of the states with the highest AMF species diversity of Mexico.
{"title":"Checklist of the arbuscular mycorrhizal fungi of Oaxaca, an important hotspot of biodiversity in Mexico","authors":"Jonás Álvarez‐Lopeztello, C. Robles, L. Hernández-Cuevas, R. F. del Castillo, M. Tejocote-Pérez, Facundo Rivera-Becerril","doi":"10.17129/botsci.3238","DOIUrl":"https://doi.org/10.17129/botsci.3238","url":null,"abstract":"Background: Oaxaca, a southern State in Mexico, belongs to the Mesoamerican hotspot of biodiversity. The taxonomic and diversity knowledge of arbuscular mycorrhizal fungi (AMF) in Oaxaca State is scattered and accessibility to it is difficult. \u0000Questions: Which AMF species have been identified in Oaxaca and which is their distribution? \u0000Studied species: Arbuscular mycorrhizal fungi. \u0000Study site: State of Oaxaca, Mexico. \u0000Methods: It was prepared an updated and annotated checklist of the AMF species with frequency of occurrence and the sampling sites where the species had been registered. All studies carried out previously (to date, 2022) were considered. Information on AMF taxa was available in scattered form in different publications in physical and electronic media, theses, projects, technical reports, and scientific papers. \u0000Results: The checklist includes 78 species, distributed among 23 genera, 10 families, and four orders. The most diverse families were Glomeraceae (26 species), followed by Gigasporaceae (20) and Acaulosporaceae (15), whereas the most diverse genera were Acaulospora and Glomus (15 and eight species, respectively). The most frequent species were Funneliformis geosporus, Acaulospora scrobiculata, and A. spinosa. The highest species diversity has been reported under the rhizosphere of Agave angustifolia, A. karwinskii, and Zea mays (39, 36, and 34 species, respectively). A new AMF species was recently isolated from the rhizosphere of a microendemic agave. \u0000Conclusions: The recorded AMF species of Oaxaca State confirms its position as one of the states with the highest AMF species diversity of Mexico.","PeriodicalId":54375,"journal":{"name":"Botanical Sciences","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44365007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ramón Cuevas-Guzmán, Susana Canales-Piña, Enrique V. Sánchez-Rodríguez, José Guadalupe Morales-Arias, Luis Guzmán-Hernández, Nora M. Núñez-López
Antecedentes: El conocimiento de los atributos estructurales y el hábitat de las especies son fundamentales para evaluar su estado de conservación y proponer acciones para su conservación y manejo. Preguntas: ¿Cuáles son los atributos estructurales de la poblacional de J. jaliscana, las características de su hábitat y los factores ambientales que podrían estar influyendo en su distribución y abundancia? Sitio y periodo de estudio: El muestreo de campo se realizó en poblaciones de J. jaliscana en el ejido El Cuale, municipio de Talpa de Allende, Jalisco, México, en julio de 2019. Métodos: En parcelas de 500 m2 se determinaron los atributos estructurales de la poblacional de J. jaliscana y a través de un RDA se evaluó cuales factores ambientales podrían influir en su distribución y abundancia. Se describió la composición y estructura de toda la comunidad vegetal. Resultados: Juniperus jaliscana registró 385 ind. ha-1 y un área basal de 8.98 m2 ha-1. Las variables con mayor influencia sobre su abundancia y distribución fueron la incidencia de incendios y el pastoreo. Se registraron 119 especies, 94 géneros y 52 familias. Psidium salutare se registró por primera vez para el estado de Jalisco y se describió como especie nueva para la ciencia a Prionosciadium tamayoi. Conclusiones: Juniperus jaliscana concentró su población en categorías diamétricas pequeñas. Los factores ambientales con mayor influencia sobre su distribución y abundancia fueron los incendios, pastoreo y condiciones de ambientes secos. Juniperus jaliscana comparte hábitat con especies endémicas al occidente de México.
摘要本研究的目的是评估该物种的结构属性和栖息地，并提出保护和管理行动建议。问题:哈利斯卡纳的种群结构属性、栖息地特征和可能影响其分布和丰度的环境因素是什么?研究地点和时间:2019年7月在墨西哥哈利斯科州Talpa de Allende市El Cuale ejido El Cuale的J. jaliscana种群进行了实地抽样。方法:在500 m2的样地中确定哈利斯卡纳的种群结构属性，并通过RDA评估哪些环境因素可能影响哈利斯卡纳的分布和丰度。在本研究中，我们评估了不同物种的植物群落的组成和结构。结果:哈利斯卡纳刺柏登记面积385株，基部面积8.98 m2 ha-1。与变量影响最大的丰度和分布被火灾发生率和放牧。在本研究中，我们分析了该物种的分布情况。Psidium salutare首次在哈利斯科州注册，并被描述为Prionosciadium tamayoi的科学新种。结论:哈利斯卡纳刺柏种群集中在小直径类别。本研究的目的是确定墨西哥恰帕斯州恰帕斯市的森林生态系统的分布和丰度。哈利斯卡纳Juniperus哈利斯卡纳与墨西哥西部特有的物种共享栖息地。
{"title":"Atributos estructurales y hábitat de Juniperus jaliscana en Talpa de Allende, Jalisco, México","authors":"Ramón Cuevas-Guzmán, Susana Canales-Piña, Enrique V. Sánchez-Rodríguez, José Guadalupe Morales-Arias, Luis Guzmán-Hernández, Nora M. Núñez-López","doi":"10.17129/botsci.3235","DOIUrl":"https://doi.org/10.17129/botsci.3235","url":null,"abstract":"Antecedentes: El conocimiento de los atributos estructurales y el hábitat de las especies son fundamentales para evaluar su estado de conservación y proponer acciones para su conservación y manejo. \u0000Preguntas: ¿Cuáles son los atributos estructurales de la poblacional de J. jaliscana, las características de su hábitat y los factores ambientales que podrían estar influyendo en su distribución y abundancia? \u0000Sitio y periodo de estudio: El muestreo de campo se realizó en poblaciones de J. jaliscana en el ejido El Cuale, municipio de Talpa de Allende, Jalisco, México, en julio de 2019. \u0000Métodos: En parcelas de 500 m2 se determinaron los atributos estructurales de la poblacional de J. jaliscana y a través de un RDA se evaluó cuales factores ambientales podrían influir en su distribución y abundancia. Se describió la composición y estructura de toda la comunidad vegetal. \u0000Resultados: Juniperus jaliscana registró 385 ind. ha-1 y un área basal de 8.98 m2 ha-1. Las variables con mayor influencia sobre su abundancia y distribución fueron la incidencia de incendios y el pastoreo. Se registraron 119 especies, 94 géneros y 52 familias. Psidium salutare se registró por primera vez para el estado de Jalisco y se describió como especie nueva para la ciencia a Prionosciadium tamayoi. \u0000Conclusiones: Juniperus jaliscana concentró su población en categorías diamétricas pequeñas. Los factores ambientales con mayor influencia sobre su distribución y abundancia fueron los incendios, pastoreo y condiciones de ambientes secos. Juniperus jaliscana comparte hábitat con especies endémicas al occidente de México.","PeriodicalId":54375,"journal":{"name":"Botanical Sciences","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47795308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dennis Alejandro Escolástico-Ortiz, Claudio Delgadillo-Moya
Background: For some bryophytes, asexual reproduction may be the primary means of population survival, which can be affected by rainfall and moss colony features. Questions and / or Hypotheses: We investigated i) how gemma output differed in two tropical epiphytic mosses with mainly asexual and sexual-asexual reproduction; ii) how is the pattern of gemmae production through an annual interval; and iii) whether gemma production in both species is correlated with rainfall and colony features (shoot density, number of gemmiferous shoots, and sexual structures) per shoot and area (cm2). Studied species / data description /Mathematical model: Calymperes afzelii Sw. and Syrrhopodon incompletus Schwägr. Study site and dates: The sampling was conducted every two months for a year at Agua Blanca State Park in Tabasco, Mexico. Methods: Squares were used to record the gemma production per shoot and cm2, the number of gemmiferous shoots, and shoots with sexual structures. Daily mean precipitation was obtained from a meteorological station. We analysed the effect of rainfall and colony features on gemmae production at the shoot and cm2 levels using generalized linear models. Results: C. afzelii produced gemmae more constantly than S. incompletus. Gemma production is higher during months of high rainfall. The rainfall and number of gemmiferous shoots are suitable predictors of gemma production. Conclusions: Our results exemplify how rainfall and gemmiferous shoots influence the production of asexual propagules in two mosses with different reproductive strategies in the same tropical environment. This information is essential to understand the population dynamics of tropical mosses.
{"title":"Rainfall and gemmiferous shoots influence asexual reproduction in two tropical mosses","authors":"Dennis Alejandro Escolástico-Ortiz, Claudio Delgadillo-Moya","doi":"10.17129/botsci.3252","DOIUrl":"https://doi.org/10.17129/botsci.3252","url":null,"abstract":"Background: For some bryophytes, asexual reproduction may be the primary means of population survival, which can be affected by rainfall and moss colony features. \u0000Questions and / or Hypotheses: We investigated i) how gemma output differed in two tropical epiphytic mosses with mainly asexual and sexual-asexual reproduction; ii) how is the pattern of gemmae production through an annual interval; and iii) whether gemma production in both species is correlated with rainfall and colony features (shoot density, number of gemmiferous shoots, and sexual structures) per shoot and area (cm2). \u0000Studied species / data description /Mathematical model: Calymperes afzelii Sw. and Syrrhopodon incompletus Schwägr. \u0000Study site and dates: The sampling was conducted every two months for a year at Agua Blanca State Park in Tabasco, Mexico. \u0000Methods: Squares were used to record the gemma production per shoot and cm2, the number of gemmiferous shoots, and shoots with sexual structures. Daily mean precipitation was obtained from a meteorological station. We analysed the effect of rainfall and colony features on gemmae production at the shoot and cm2 levels using generalized linear models. \u0000Results: C. afzelii produced gemmae more constantly than S. incompletus. Gemma production is higher during months of high rainfall. The rainfall and number of gemmiferous shoots are suitable predictors of gemma production. \u0000Conclusions: Our results exemplify how rainfall and gemmiferous shoots influence the production of asexual propagules in two mosses with different reproductive strategies in the same tropical environment. This information is essential to understand the population dynamics of tropical mosses.","PeriodicalId":54375,"journal":{"name":"Botanical Sciences","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49177637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Emir Lenin Serafín-Higuera, M. Reyes-Valdés, A. Morales-Díaz, J. Á. Villarreal-Quintanilla, Adalberto Benavides-Mendoza
Antecedentes: La producción de sotol ha crecido en los últimos años. Existe el interés de establecer monocultivos para mitigar la sobreexplotación de las poblaciones silvestres. Sin embargo, para un establecimiento y manejo eficiente de plantaciones es importante conocer la composición elemental de Dasylirion cedrosanum. Hipótesis: La composición mineral de Dasylirion cedrosanum refleja la composición mineral de la solución del suelo del sitio en donde crece. Especie de estudio: Dasylirion cedrosanum Trel. Sitios y años de estudio: Se muestrearon plantas y suelos durante septiembre y octubre del 2020 en San Lorenzo, Buenavista y General Cepeda, Coahuila. Métodos: Se colectaron tallos, hojas y suelos y se analizaron sus elementos. Además, se midieron caracteres morfológicos a cada espécimen. Los datos se analizaron con técnicas estadísticas multivariadas. Resultados: El Ca y N presentaron alta concentración en el suelo y en las plantas. En las tres localidades los niveles de Se fueron altos en las plantas. No obstante, el Se en la solución del suelo no fue detectable. Los individuos de San Lorenzo y General Cepeda mostraron niveles altos de Cu y Ba, a pesar de que el Cu no fue detectable en el suelo. El crecimiento mostró asociación negativa con el As, Ba, Cd, Cr, Mo, Ni y Pb y el Mg estuvo relacionado con un mayor crecimiento de Dasylirion cedrosanum. Conclusiones: Dasylirion cedrosanum dispone de mecanismos para la adquisición y concentración de los elementos de la solución del suelo, incluso cuando estos estén en concentraciones bajas.
{"title":"Asociación entre la composición elemental del suelo y la planta y la morfología de Dasylirion cedrosanum Trel.","authors":"Emir Lenin Serafín-Higuera, M. Reyes-Valdés, A. Morales-Díaz, J. Á. Villarreal-Quintanilla, Adalberto Benavides-Mendoza","doi":"10.17129/botsci.3224","DOIUrl":"https://doi.org/10.17129/botsci.3224","url":null,"abstract":"Antecedentes: La producción de sotol ha crecido en los últimos años. Existe el interés de establecer monocultivos para mitigar la sobreexplotación de las poblaciones silvestres. Sin embargo, para un establecimiento y manejo eficiente de plantaciones es importante conocer la composición elemental de Dasylirion cedrosanum. \u0000Hipótesis: La composición mineral de Dasylirion cedrosanum refleja la composición mineral de la solución del suelo del sitio en donde crece. \u0000Especie de estudio: Dasylirion cedrosanum Trel. \u0000Sitios y años de estudio: Se muestrearon plantas y suelos durante septiembre y octubre del 2020 en San Lorenzo, Buenavista y General Cepeda, Coahuila. \u0000Métodos: Se colectaron tallos, hojas y suelos y se analizaron sus elementos. Además, se midieron caracteres morfológicos a cada espécimen. Los datos se analizaron con técnicas estadísticas multivariadas. \u0000Resultados: El Ca y N presentaron alta concentración en el suelo y en las plantas. En las tres localidades los niveles de Se fueron altos en las plantas. No obstante, el Se en la solución del suelo no fue detectable. Los individuos de San Lorenzo y General Cepeda mostraron niveles altos de Cu y Ba, a pesar de que el Cu no fue detectable en el suelo. El crecimiento mostró asociación negativa con el As, Ba, Cd, Cr, Mo, Ni y Pb y el Mg estuvo relacionado con un mayor crecimiento de Dasylirion cedrosanum. \u0000Conclusiones: Dasylirion cedrosanum dispone de mecanismos para la adquisición y concentración de los elementos de la solución del suelo, incluso cuando estos estén en concentraciones bajas.","PeriodicalId":54375,"journal":{"name":"Botanical Sciences","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43424375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dario De la Cruz-Ricardez, L. C. Lagunes-Espinoza, C. Ortíz-García, E. Hernández-Nataren, R. M. Soto-Hernández, Rocío G. Acosta-Pech
Background: Capsicum spp. grow in environments with different incident radiation, that could modify the plant growth and the concentration of phytochemicals in fruits. Hypothesis: Shading positively affects phenology and fruit yield, decreases the total contents of phenols (TPC), flavonoids (FLV), proanthocyanidins (PAN) and carotenoids (CAT) in fruits of wild Capsicum species. Studied species: Capsicum annuum var. glabriusculum: amashito (AMA) and garbanzo (GAR), and C. frutescens (Pico Paloma, PIP) Study site and dates: Huimanguillo, Tabasco, Mexico; 2020 and 2021. Methods: Seeds were treated with gibberellic acid (GA3) (500 mg L-1) for 24 h prior to seeding. The seedlings were transplanted in an open field and under two levels of shade (35 and 70 %) under a subsplit plot design with four replicates. TPC, FLV, PAN and CAT were determinate in immature and ripe fruits by UV-vis spectrophotometry. Results: Shade accelerated the phenological processes from the first bifurcation of the stem, and decreased the fruits ripening time from anthesis of the genotypes studied. Shade only increased the yield of the AMA genotype and reduced the contents of TPC, FLV, and CAT; however, these metabolites increased under open field conditions. Conclusions: The shade reduced the duration of phenological stages including the ripening period of fruits, and increased the plant height of the Capsicum spp. The increase in yield by shading effect only was observed in AMA genotype. The content of phytochemicals in Capsicum fruits is reduced by shading levels.
{"title":"Phenology, yield, and phytochemicals of Capsicum spp. in response to shading","authors":"Dario De la Cruz-Ricardez, L. C. Lagunes-Espinoza, C. Ortíz-García, E. Hernández-Nataren, R. M. Soto-Hernández, Rocío G. Acosta-Pech","doi":"10.17129/botsci.3234","DOIUrl":"https://doi.org/10.17129/botsci.3234","url":null,"abstract":"Background: Capsicum spp. grow in environments with different incident radiation, that could modify the plant growth and the concentration of phytochemicals in fruits. \u0000Hypothesis: Shading positively affects phenology and fruit yield, decreases the total contents of phenols (TPC), flavonoids (FLV), proanthocyanidins (PAN) and carotenoids (CAT) in fruits of wild Capsicum species. \u0000Studied species: Capsicum annuum var. glabriusculum: amashito (AMA) and garbanzo (GAR), and C. frutescens (Pico Paloma, PIP) \u0000Study site and dates: Huimanguillo, Tabasco, Mexico; 2020 and 2021. \u0000Methods: Seeds were treated with gibberellic acid (GA3) (500 mg L-1) for 24 h prior to seeding. The seedlings were transplanted in an open field and under two levels of shade (35 and 70 %) under a subsplit plot design with four replicates. TPC, FLV, PAN and CAT were determinate in immature and ripe fruits by UV-vis spectrophotometry. \u0000Results: Shade accelerated the phenological processes from the first bifurcation of the stem, and decreased the fruits ripening time from anthesis of the genotypes studied. Shade only increased the yield of the AMA genotype and reduced the contents of TPC, FLV, and CAT; however, these metabolites increased under open field conditions. \u0000Conclusions: The shade reduced the duration of phenological stages including the ripening period of fruits, and increased the plant height of the Capsicum spp. The increase in yield by shading effect only was observed in AMA genotype. The content of phytochemicals in Capsicum fruits is reduced by shading levels.","PeriodicalId":54375,"journal":{"name":"Botanical Sciences","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49127458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Background: Seed germination strategies are important for exotic species to identify the factors that control seed germination and establishment. Questions and /or Hypotheses: Temperature and light germination requirements for seeds of Calotropis procera do not change neither in its native regions nor in lands where it is exotic. Calotropis procera show germination traits that may increase their probability of colonization. Studied species: Calotropis procera is a perennial plant native to some desertic areas in Asia and Africa and now naturalized in America. Study site and dates: Mature fruits were collected in Oaxaca in September 2019 to test germination parameters. The last experiment was conducted in September 2021. Methods: We determined the effect of different temperatures, photoblastic response, and loss of viability of seeds kept at laboratory conditions for two years. We performed several sowings under controlled conditions and achieved germinability, t50 and the time to germinate. Results: Seeds were non-dormant, neutral photoblastic and did not lose viability after two years of dry storage. Temperature affected germinability and t50. Optimum germination temperature was 30 °C with no germination above 40 °C. Conclusions: Germination requirements of seeds of Calotropis procera studied were similar to those reported worldwide. Though seed germination was affected by maximum mean temperatures, seeds germinated fast and at high percentages under a wide range of temperatures, which together with other attributes, may confer C. procera great chances for successful colonization.
{"title":"Germination of the exotic Calotropis procera (Aiton) W.T. (Apocynaceae) in Mexico","authors":"Emiliano Navarrete-Sauza, M. Rojas-Aréchiga","doi":"10.17129/botsci.3228","DOIUrl":"https://doi.org/10.17129/botsci.3228","url":null,"abstract":"Background: Seed germination strategies are important for exotic species to identify the factors that control seed germination and establishment. \u0000Questions and /or Hypotheses: Temperature and light germination requirements for seeds of Calotropis procera do not change neither in its native regions nor in lands where it is exotic. Calotropis procera show germination traits that may increase their probability of colonization. \u0000Studied species: Calotropis procera is a perennial plant native to some desertic areas in Asia and Africa and now naturalized in America. \u0000Study site and dates: Mature fruits were collected in Oaxaca in September 2019 to test germination parameters. The last experiment was conducted in September 2021. \u0000Methods: We determined the effect of different temperatures, photoblastic response, and loss of viability of seeds kept at laboratory conditions for two years. We performed several sowings under controlled conditions and achieved germinability, t50 and the time to germinate. \u0000Results: Seeds were non-dormant, neutral photoblastic and did not lose viability after two years of dry storage. Temperature affected germinability and t50. Optimum germination temperature was 30 °C with no germination above 40 °C. \u0000Conclusions: Germination requirements of seeds of Calotropis procera studied were similar to those reported worldwide. Though seed germination was affected by maximum mean temperatures, seeds germinated fast and at high percentages under a wide range of temperatures, which together with other attributes, may confer C. procera great chances for successful colonization.","PeriodicalId":54375,"journal":{"name":"Botanical Sciences","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41921204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. L. León de la Luz, J. Rebman, Alfonso Medel Narváez
Background: Although most of the Nama taxa grow on sandy substrates, none of them is restricted to the coastal dune environment. A small population of a unique looking taxon was found on the Pacific coast of the Baja California peninsula, which is here presented as a new species. Question and/or Hypothesis: In the morphological analysis in the individuals of a putative new taxon, some peculiarities stand out, such as a suffruticose herbaceous perennial growth form with erect and compact branching, featuring a small cushion, unlike the rest of the known species, which are rather procumbent, or erect in form. It also has revolute leaf margins in the blade. Studied Species: Nama asuncionensis sp. nov. (Namaceae) and morphologically similar species. Study Site: Central Pacific coast of Baja California, Mexico. Method: Through bibliographic consultation, review of herbarium specimens, and photographs, a comparative morphological analysis was carried out with other Nama species of the peninsula and mainland Mexico. Results: Based on the comparative analyses, Nama asuncionensis is here presented and illustrated as a new species. Conclusions: Nama asuncionensis is a micro-endemic species restricted to the Pacific coastal environment of the peninsula. We propose that this new taxon be included in the Eunama section of the genus based on its morphological characteristics, including a membranous loculicidal dehiscent capsule, free styles, and sepals divided to the base. This taxon seems to be limited to a narrow coastal strip, with high relative humidity, where it develops its fresh leaves and flowers during the mild season.
{"title":"A new species of Nama (Namaceae) from the Vizcaino Desert, Mexico","authors":"J. L. León de la Luz, J. Rebman, Alfonso Medel Narváez","doi":"10.17129/botsci.3271","DOIUrl":"https://doi.org/10.17129/botsci.3271","url":null,"abstract":"Background: Although most of the Nama taxa grow on sandy substrates, none of them is restricted to the coastal dune environment. A small population of a unique looking taxon was found on the Pacific coast of the Baja California peninsula, which is here presented as a new species. \u0000Question and/or Hypothesis: In the morphological analysis in the individuals of a putative new taxon, some peculiarities stand out, such as a suffruticose herbaceous perennial growth form with erect and compact branching, featuring a small cushion, unlike the rest of the known species, which are rather procumbent, or erect in form. It also has revolute leaf margins in the blade. \u0000Studied Species: Nama asuncionensis sp. nov. (Namaceae) and morphologically similar species. \u0000Study Site: Central Pacific coast of Baja California, Mexico. \u0000Method: Through bibliographic consultation, review of herbarium specimens, and photographs, a comparative morphological analysis was carried out with other Nama species of the peninsula and mainland Mexico. \u0000Results: Based on the comparative analyses, Nama asuncionensis is here presented and illustrated as a new species. \u0000Conclusions: Nama asuncionensis is a micro-endemic species restricted to the Pacific coastal environment of the peninsula. We propose that this new taxon be included in the Eunama section of the genus based on its morphological characteristics, including a membranous loculicidal dehiscent capsule, free styles, and sepals divided to the base. This taxon seems to be limited to a narrow coastal strip, with high relative humidity, where it develops its fresh leaves and flowers during the mild season.","PeriodicalId":54375,"journal":{"name":"Botanical Sciences","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47813669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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