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Mahabalella pernambucana, a new hyphomycete from Brazil with notes on its phylogenetic positioning 来自巴西的一种新丝孢菌及其系统发育定位
IF 1.1 4区 生物学 Q4 PLANT SCIENCES Pub Date : 2023-01-20 DOI: 10.1590/1677-941x-abb-2022-0235
W. L. Tavares, M. A. Barbosa, R. Castañeda-Ruiz, E. Malosso
A new species of Mahabalella B. Sutton & S. D. Patil was isolated from decaying leaves of an unidentified plant, during a survey in the Charles Darwin Ecological Refuge in Igarassu, Pernambuco, Brazil, in June 2018. The new species is morphologically distinguishable from the other Mahabalella species by the size of their conidia, conidiogenous cells and setae. In this study, the morphological descriptions, illustrations and cultural characteristics for Mahabalella pernambucana are provided, as well as a key to species of this genus. Total DNA from the isolate was extracted, and four genes were partially sequenced (nLSU, ITS cluster, TEF1 alpha, and beta tubulin). Based on the nLSU analysis, the phylogenetic position of the new species was determined within the Sordariomycetes, Ascomycota, as a sister genus to Neotracylla , in the Tracyllaceae family.
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引用次数: 0
Duguetia leucotricha (Annonaceae), a new species from the Atlantic Coastal Forest of Brazil 标题巴西大西洋沿岸森林的一新种——白菖蒲科
IF 1.1 4区 生物学 Q4 PLANT SCIENCES Pub Date : 2023-01-16 DOI: 10.1590/1677-941x-abb-2022-0203
M. Bazante, P. Maas, M. D. R. Barbosa
A new species of Annonaceae, Duguetia leucotricha M.L.Bazante & Maas, from lowland to submontane forests of southern Bahia, Brazil, is described. It differs from other species of the genus mainly by the dense greyish white stellate hairs on vegetative and reproductive structures, rather widely-spaced flowers, the large bract in the upper part of the well-developed pedicel, sepals and petals almost equal in length, and the few-carpellate fruits with rounded apex of the areoles. Commentaries concerning its morphological aspects and relationships of affinity, geographic distribution, conservation status and photos are provided, as well as a key to all Atlantic Coastal Forest species of Duguetia .
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引用次数: 0
A scientometric study of the molecular data on Brazilian red algae 巴西红藻分子数据的科学计量学研究
IF 1.1 4区 生物学 Q4 PLANT SCIENCES Pub Date : 2023-01-06 DOI: 10.1590/1677-941x-abb-2022-0174
Larissa Mota de Araujo, D. S. Rocha, H. M. Affe, P. B. Jesus
The growth in the number of molecular sequences produced in recent years has provided valuable contributions to the knowledge diversity of red algae (Rhodophyta) in Brazil. However, many works indicate that there is still much to be studied. Here, we highlight the importance of compiling all these data to evidence possible taxonomic and geographic knowledge gaps in red algae through molecular data. So, this study presents a scientometric analysis of the molecular studies carried out on red algae in Brazil, based on the analysis of DNA sequences available in the public database GenBank. Our results demonstrated an increase in published papers from 1994 to 2020, corresponding to 165 studies analyzed. A huge disparity in the production of knowledge was observed, with the southeastern region concentrating the researchers responsible for most of the published studies, with emphasis on those in the University of São Paulo (USP). Bahia and São Paulo states stand out with the highest observed taxonomic richness, respectively. We also could identify the taxonomic groups with more molecular data generated, the sequence number deposited per institution since 1994, the main markers used, the regions that require a greater collection effort, and where the researchers who study red algae in the country are.
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引用次数: 0
A new species of Mandevilla (Apocynaceae) from limestone outcrops in Central Brazil with a short note on the occurrence of geophytes in rauvolfioids and apocynoids 巴西中部石灰岩露头山曼德树(夹竹桃科)一新种——兼论其地植物的分布
4区 生物学 Q4 PLANT SCIENCES Pub Date : 2023-01-01 DOI: 10.1590/1677-941x-abb-2023-0123
J. Francisco Morales, Mary E. Endress, Isa Lucia de Morais, Polla Renon
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引用次数: 0
The Ferns of the Calilegua National Park: a look through their spores. Part I 卡利列瓜国家公园的蕨类植物:透过孢子看一看。第一部分
4区 生物学 Q4 PLANT SCIENCES Pub Date : 2023-01-01 DOI: 10.1590/1677-941x-abb-2023-0071
Daniel Alejandro Gorrer, Juan Pablo Ramos Giacosa, Liliana Concepción Lupo
Calilegua National Park is located in the Southeast of the province of Jujuy, Argentina. It is comprised of different districts within the Yungas Biogeographic Province, where conditions are optimal for fern development. The palynological studies with light microscopy in this area are very limited. The aim of this work is to present the morphology of spores from 42 taxa belonging to 9 families of isosporate ferns that grow in this protected area. The study was carried out with herbarium material. The families studied are Anemiaceae, Aspleniaceae, Athyriaceae, Blechnaceae, Cyatheaceae, Cystopteridaceae, Dennstaedtiaceae, Dryopteridaceae, and Equisetaceae. According to the spore aperture type, 35 taxa are monolete, five trilete, and two alete. The spores are yellowish, light to dark brown or brown greenish. The largest spores belong to Anemia australis and the smallest to Asplenium argentinum. Equinate, folded, cristate, alate, reticulate, ridged, psilate, verrucate, and baculate spores were observed. For the first time, the spores of 27 species are illustrated under a light microscope. An identification key of the spores is also provided. The morphological characteristics of the spores allowed for the identification of 23 species, contributing to spore bank analysis, aeropalynological and paleopalynological studies, and taxonomic identifications.
卡利列瓜国家公园位于阿根廷胡胡伊省东南部。它由Yungas生物地理省的不同地区组成,那里的条件最适合蕨类植物的生长。在这一地区,光学显微镜下的孢粉学研究非常有限。本研究的目的是对生长在该保护区的异孢子蕨类植物9科42个分类群的孢子形态进行研究。这项研究是用植物标本室的材料进行的。所研究的科有羊蹄科、羊蹄科、羊蹄科、羊蹄科、Cyatheaceae、Cystopteridaceae、Dennstaedtiaceae、毛蕨科和木贼科。按孢子孔径类型划分,35个类群为单孢子体,5个为三孢子体,2个为双孢子体。孢子呈淡黄色,浅至深棕色或棕绿色。最大的孢子属于南方贫血,最小的孢子属于阿根廷贫血。观察到马蹄状、折叠状、鸡冠状、锯齿状、网状、脊状、柱状、疣状和杆状孢子。首次在光学显微镜下展示了27个物种的孢子。还提供了孢子的识别密钥。孢子的形态特征可以鉴定23个物种,有助于孢子库分析,气孢学和古孢学研究以及分类鉴定。
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引用次数: 0
Under ground: what pH favors germination and the root growth of Zeyheria tuberculosa (Vell.) Bureau ex Verl. 地下:什么样的pH值有利于Zeyheria tuberlosa的发芽和根系生长。前总督局
4区 生物学 Q4 PLANT SCIENCES Pub Date : 2023-01-01 DOI: 10.1590/1677-941x-abb-2023-0116
Ana Maria Oliveira Ferreira, Tais Torres, Lissa Vasconcelos Vilas Boas, Elisa Monteze Bicalho
This work aimed to examine the germination and initial growth of Zeyheria tuberculosa (Vell.) Bureau ex Verl. seedlings at different pH values. pH of the deionized water was adjusted with hydrochloric acid and/or sodium hydroxide to 4.7, 5.7, 6.7, 7.7 and 8.7. The following parameters were evaluated: final germination percentage (GP), germination speed index, time required for 50% germination, germination rate, viability of the remaining seeds and length of the radicle. All parameters were reduced in alkaline pH. Maximum germination of 94% was reached in the treatment control, followed by pH 4.7. At alkaline pH (7.7 - 8.7), GP was 43 and 31%, respectively. Therefore, at these pHs, germination was reduced. We provided direct evidence that pH is a limiting factor for germination and for the radicle growth of Z. tuberculosa seedlings. In addition, we show experimental evidence of why this species is widely distributed in the Cerrado biome, where the soils are more acidic, and the relationship between soil composition and high germination in acidic medium was corroborated with this study. We suggest that the germination test at different pHs be included in reforestation programs with native species to predict the establishment of seedlings in soils with different pH.
本研究旨在研究结核Zeyheria tuberlosa (Vell.)的萌发和初始生长。前总督局不同pH值的幼苗。用盐酸和/或氢氧化钠调节去离子水的pH为4.7、5.7、6.7、7.7和8.7。测定了最终发芽率(GP)、发芽速度指数、50%萌发所需时间、发芽率、剩余种子活力和胚根长度。在pH值为4.7的处理下,发芽率最高,达到94%。在碱性pH(7.7 ~ 8.7)下,GP分别为43%和31%。因此,在这些ph值下,发芽率降低。我们提供了直接证据,证明pH是结核分枝杆菌幼苗发芽和根生长的限制因素。此外,我们展示了实验证据,为什么该物种广泛分布在Cerrado生物群系中,那里的土壤酸性更强,土壤成分与酸性培养基中高发芽率之间的关系得到了本研究的证实。我们建议将不同pH值的发芽试验纳入本地树种造林计划中,以预测不同pH值土壤中幼苗的成活率。
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引用次数: 0
The genus Microbryum (Pottiaceae, Bryophyta) in Argentina 阿根廷的微bryhyta属
4区 生物学 Q4 PLANT SCIENCES Pub Date : 2023-01-01 DOI: 10.1590/1677-941x-abb-2023-0138
Denise J. Alvarez, Guillermo M. Suárez
The genus Microbryum is recorded for the first time in Argentina, with a single species Microbryum davallianum. The species differs from others in the genus mainly by stegocarpous capsules, long setae and spore ornamentation. A description, photographs and illustration of the species are provided.
在阿根廷首次记录到小bryum属,仅有davallianum一种。本种与属内其他种的不同之处主要在于具剑壳的蒴果、长刚毛和孢子纹饰。提供了该物种的描述、照片和插图。
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引用次数: 0
Botanical structure of two urbansecondary forest and associations with meliponiculture in eastern Amazon 亚马孙东部两种城市次生林的植物结构及其与茉莉栽培的关系
4区 生物学 Q4 PLANT SCIENCES Pub Date : 2023-01-01 DOI: 10.1590/1677-941x-abb-2023-0150
Rogério Ribeiro de Souza, Amanda Alves Valente, Chieno Suetmisu, Marcos Gonçalves Ferreira, Ima Célia Guimarães Vieira
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引用次数: 0
Eleocharis multinerviglumis, a remarkable new aquatic sedge species from the Brazilian Atlantic Forest biome 巴西大西洋森林生物群系中一个显著的水生莎草新种
4区 生物学 Q4 PLANT SCIENCES Pub Date : 2023-01-01 DOI: 10.1590/1677-941x-abb-2023-0086
Clebiana de Sá Nunes, Rafael Trevisan, André dos Santos Bragança Gil
Eleocharis multinerviglumis, a new species of Eleocharis ser. Tenuissimae (Cyperaceae) known only from the Poços de Caldas plateau in southeastern Brazil, is described here. The new species was found growing in an Atlantic Forest remnant as a submerged or emergent herb in a flooded environment. Eleocharis multinerviglumis differs from other Eleocharis ser. Tenuissimae species mainly by having dimorphic spikelets, with the upper glumes of the spikelets on the culm apex with 7 to 10 prominent longitudinal nerves on both sides (rib-like). Taxonomic notes, an occurrence map and illustrations (including SEM images) are provided.
文章标题菖蒲属一新种。只知道从poos de Caldas高原在巴西东南部的苏柏科,在这里描述。这种新物种被发现生长在大西洋森林的遗迹中,在洪水环境中作为一种淹没或新兴的草本植物。多角蛇不同于其他种类的蛇。主要具有二形小穗,在秆先端的小穗的上颖片在两侧有7到10个突出的纵神经(肋状)。提供了分类学注释,发生图和插图(包括SEM图像)。
{"title":"Eleocharis multinerviglumis, a remarkable new aquatic sedge species from the Brazilian Atlantic Forest biome","authors":"Clebiana de Sá Nunes, Rafael Trevisan, André dos Santos Bragança Gil","doi":"10.1590/1677-941x-abb-2023-0086","DOIUrl":"https://doi.org/10.1590/1677-941x-abb-2023-0086","url":null,"abstract":"Eleocharis multinerviglumis, a new species of Eleocharis ser. Tenuissimae (Cyperaceae) known only from the Poços de Caldas plateau in southeastern Brazil, is described here. The new species was found growing in an Atlantic Forest remnant as a submerged or emergent herb in a flooded environment. Eleocharis multinerviglumis differs from other Eleocharis ser. Tenuissimae species mainly by having dimorphic spikelets, with the upper glumes of the spikelets on the culm apex with 7 to 10 prominent longitudinal nerves on both sides (rib-like). Taxonomic notes, an occurrence map and illustrations (including SEM images) are provided.","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135212878","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}
引用次数: 0
A new endangered species of Mollinedia (Monimiaceae, Laurales) endemic to the Atlantic forest in the state of Espírito Santo, Brazil, supported by morphology and genome size estimation 巴西圣托Espírito大西洋森林特有的一种新的濒危物种Mollinedia (Monimiaceae, Laurales),形态学和基因组大小估算支持
4区 生物学 Q4 PLANT SCIENCES Pub Date : 2023-01-01 DOI: 10.1590/1677-941x-abb-2023-0174
Maria Pauli, Ariane Luna Peixoto, Ana Paula Moraes, Danilo Alvarenga Zavatin, Raquel Negrão, Paulo Takeo Sano, Elton John de Lírio
Mollinedia (Monimiaceae) presents numerous microendemic species, and its centre of diversity is in the Brazilian Atlantic rainforest, where more than half of the species occur. The taxonomy of microendemic species can be challenging because their morphological and genetic variations can be interpreted as a response to geographic isolation rather than a circumscription for different species. In this paper, we describe Mollinedia pignalii Lírio & Pauli, a microendemic species from the Espírito Santo state, Brazil. Vegetatively, M. pignalii is similar to Mollinedia elegans Tul. and Mollinedia schottiana (Spreng.) Perkins; however, it presents the following differences: white-puberulous leaves, staminate flowers with a flat receptacle and 6 to 14 stamens, white-puberulous pistillate flowers with a cupuliform receptacle and 8 to 22 carpels, and white-puberulous drupelets. Due to the similarity between the three species, M. pignalii has been collected and deposited in herbaria under different names. Here, we describe the new species based on morphology and genome size, a comparison with similar species, and ecological comments in an integrative approach. We also provide its conservation status and an identification key for the species of Monimiaceae occurring in the state of Espírito Santo.
Mollinedia (Monimiaceae)具有许多微特有物种,其多样性中心位于巴西大西洋雨林,其中一半以上的物种发生在那里。微特有物种的分类可能具有挑战性,因为它们的形态和遗传变异可以解释为对地理隔离的反应,而不是对不同物种的限制。本文描述了产自巴西Espírito Santo state的微型特有种Mollinedia pignalii Lírio & Pauli。在营养方面,M. pignalii与Mollinedia elegans Tul相似。和水草(春)帕金斯;然而,它表现出以下的区别:白色被微柔毛的叶,雄蕊花,扁平花托,6 ~ 14个雄蕊,白色被微柔毛的雌蕊花,杯状花托,8 ~ 22个心皮,白色被微柔毛的小核果。由于这三个物种之间的相似性,在植物标本室中收集和保存了不同的名称。在这里,我们基于形态学和基因组大小,与相似物种的比较,以及生态学评论来描述新物种。本文还提供了其保护现状,并对Espírito Santo州的monimiiaceae物种进行了鉴定。
{"title":"A new endangered species of Mollinedia (Monimiaceae, Laurales) endemic to the Atlantic forest in the state of Espírito Santo, Brazil, supported by morphology and genome size estimation","authors":"Maria Pauli, Ariane Luna Peixoto, Ana Paula Moraes, Danilo Alvarenga Zavatin, Raquel Negrão, Paulo Takeo Sano, Elton John de Lírio","doi":"10.1590/1677-941x-abb-2023-0174","DOIUrl":"https://doi.org/10.1590/1677-941x-abb-2023-0174","url":null,"abstract":"Mollinedia (Monimiaceae) presents numerous microendemic species, and its centre of diversity is in the Brazilian Atlantic rainforest, where more than half of the species occur. The taxonomy of microendemic species can be challenging because their morphological and genetic variations can be interpreted as a response to geographic isolation rather than a circumscription for different species. In this paper, we describe Mollinedia pignalii Lírio & Pauli, a microendemic species from the Espírito Santo state, Brazil. Vegetatively, M. pignalii is similar to Mollinedia elegans Tul. and Mollinedia schottiana (Spreng.) Perkins; however, it presents the following differences: white-puberulous leaves, staminate flowers with a flat receptacle and 6 to 14 stamens, white-puberulous pistillate flowers with a cupuliform receptacle and 8 to 22 carpels, and white-puberulous drupelets. Due to the similarity between the three species, M. pignalii has been collected and deposited in herbaria under different names. Here, we describe the new species based on morphology and genome size, a comparison with similar species, and ecological comments in an integrative approach. We also provide its conservation status and an identification key for the species of Monimiaceae occurring in the state of Espírito Santo.","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135494857","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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Acta Botanica Brasilica
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