Danielle Coelho Da Cruz, Antônio Carlos Severo Menezes, Gracielle Oliveira Sabbag Cunha
The objective of this research was to perform a preliminary phytochemical study and investigate the toxicity, cytotoxicity and antibacterial activity of the species Tibouchina papyrus (Melastomataceae). The toxicity test was performed with the extracts against Artemia salina. The cytotoxic study was also performed against the following cell lines: promyelocytic leukemia (HL60), human colon carcinoma (HCT-116), breast carcinoma (MCF-7), prostate carcinoma (PC3), astrocytoma (SNB-19) and non-tumor cells (L929). Last, antibacterial activity was assessed through against Staphylococcus epidermidis (25923), Staphylococcus aureus (12228), Escherichia coli (25312) and Pseudomonas aeruginosa (27853). The phytochemical investigation indicated the presence of these metabolite groups: flavonoids, triterpenes, steroids and tannins. The methanolic extracts showed moderate antibacterial activity against S. aureus, S. epidermidis and P. aeruginosa. T. papyrus extracts showed high cytotoxic activity against promyelocytic leukemia cell lines (80.43 to 93.31%). The other lines did not reveal good activity against the extracts tested.
{"title":"Evaluation of the toxicity, cytotoxicity and antibacterial activity of Tibouchina papyrus (Pohl) Toledo (Melastomataceae)","authors":"Danielle Coelho Da Cruz, Antônio Carlos Severo Menezes, Gracielle Oliveira Sabbag Cunha","doi":"10.22571/2526-4338621","DOIUrl":"https://doi.org/10.22571/2526-4338621","url":null,"abstract":"The objective of this research was to perform a preliminary phytochemical study and investigate the toxicity, cytotoxicity and antibacterial activity of the species Tibouchina papyrus (Melastomataceae). The toxicity test was performed with the extracts against Artemia salina. The cytotoxic study was also performed against the following cell lines: promyelocytic leukemia (HL60), human colon carcinoma (HCT-116), breast carcinoma (MCF-7), prostate carcinoma (PC3), astrocytoma (SNB-19) and non-tumor cells (L929). Last, antibacterial activity was assessed through against Staphylococcus epidermidis (25923), Staphylococcus aureus (12228), Escherichia coli (25312) and Pseudomonas aeruginosa (27853). The phytochemical investigation indicated the presence of these metabolite groups: flavonoids, triterpenes, steroids and tannins. The methanolic extracts showed moderate antibacterial activity against S. aureus, S. epidermidis and P. aeruginosa. T. papyrus extracts showed high cytotoxic activity against promyelocytic leukemia cell lines (80.43 to 93.31%). The other lines did not reveal good activity against the extracts tested.","PeriodicalId":41699,"journal":{"name":"Acta Brasiliensis","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41823310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The release calls carry species-specifics characteristics that can be used for the diagnosis of closely related species. Despite its importance, for the Lophyohylini tribe, this type of call is known only for two species. Corythomantis greeningi is a species widely distributed in xeric and sub-humid regions of northeastern Brazil. Herein, we describe for the first time the release call of C. greeningi recorded in the Pedro II municipality, state of Piauí, northeastern Brazil. The release call, emitted during handling in its the axillary region, was structurally and quantitatively different from the advertisement call, presenting a lower number of pulses per note and a lower dominant frequency. This work represents an important contribution to the intra and interspecific communication mechanisms of the species.
{"title":"Release call of Corythomantis greeningi Boulenger, 1896 (Anura: Hylidae)","authors":"E. Andrade, Lucas Rafael Uchôa","doi":"10.22571/2526-4338589","DOIUrl":"https://doi.org/10.22571/2526-4338589","url":null,"abstract":"The release calls carry species-specifics characteristics that can be used for the diagnosis of closely related species. Despite its importance, for the Lophyohylini tribe, this type of call is known only for two species. Corythomantis greeningi is a species widely distributed in xeric and sub-humid regions of northeastern Brazil. Herein, we describe for the first time the release call of C. greeningi recorded in the Pedro II municipality, state of Piauí, northeastern Brazil. The release call, emitted during handling in its the axillary region, was structurally and quantitatively different from the advertisement call, presenting a lower number of pulses per note and a lower dominant frequency. This work represents an important contribution to the intra and interspecific communication mechanisms of the species.","PeriodicalId":41699,"journal":{"name":"Acta Brasiliensis","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45662789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. Ribeiro, R. C. Garcia, Lucas Luan Tonelli, Seliane Roberta Chiamolera, Larissa Paola Favreto, Shirlene Souza Oliveira, S. C. Camargo, Douglas Galhardo
The objective of this work was to evaluate the physicochemical characteristics, the bioactive compounds and the antioxidant potential of honey produced by Africanized bees (Apis mellifera L.) from municipalities in western Paraná state. Sixty-six samples of honey were analyzed from October 2018 to August 2019. The physicochemical parameters evaluated were: color, moisture, hydroxymethylfurfural, pH and free acidity, with mean values of 0.36±0.24nm, 18 .80±1.01%, 10.34±3.24mg.kg-1, 4.01±0.18 and 17.36±4.11 meq.kg-1, respectively. The bioactive compounds (phenolic compounds and flavonoids) and the antioxidant activity were also analyzed, and the mean values of 16.34±7.41mg.GAE 100 g-1 were observed for Total Phenols, 21.35±9.63mg.QE 100 g-1 for flavonoids and 0.09±0.03µmol.TE g-1 for antioxidant activity (DPPH). The honey samples were influenced by their phytogeographic origin and have antioxidant potential.
{"title":"Physicochemical characterization, bioactive compounds and antioxidant activity of apis mellifera honey from western paraná state, brazil","authors":"R. Ribeiro, R. C. Garcia, Lucas Luan Tonelli, Seliane Roberta Chiamolera, Larissa Paola Favreto, Shirlene Souza Oliveira, S. C. Camargo, Douglas Galhardo","doi":"10.22571/2526-4338585","DOIUrl":"https://doi.org/10.22571/2526-4338585","url":null,"abstract":"The objective of this work was to evaluate the physicochemical characteristics, the bioactive compounds and the antioxidant potential of honey produced by Africanized bees (Apis mellifera L.) from municipalities in western Paraná state. Sixty-six samples of honey were analyzed from October 2018 to August 2019. The physicochemical parameters evaluated were: color, moisture, hydroxymethylfurfural, pH and free acidity, with mean values of 0.36±0.24nm, 18 .80±1.01%, 10.34±3.24mg.kg-1, 4.01±0.18 and 17.36±4.11 meq.kg-1, respectively. The bioactive compounds (phenolic compounds and flavonoids) and the antioxidant activity were also analyzed, and the mean values of 16.34±7.41mg.GAE 100 g-1 were observed for Total Phenols, 21.35±9.63mg.QE 100 g-1 for flavonoids and 0.09±0.03µmol.TE g-1 for antioxidant activity (DPPH). The honey samples were influenced by their phytogeographic origin and have antioxidant potential.","PeriodicalId":41699,"journal":{"name":"Acta Brasiliensis","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44518797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Oliveira, Maria do Socorro Lacerda Rolim, Derick Lira, M. A. Bezerra-Gusmão
Termites are known as wood consumers, although some species eat other substrates. Assessing resource selection is important to understanding their biology. The present study provides information on the foraging behavior of Constrictotermes cyphergaster (Blattaria, Termitidae) in a dry forest area of Caatinga in Brazil. We aimed to verify the frequency of resource exploitation by termites as a function of environmental and soil temperatures. We found no significant differences in resource exploitation as a function of temperature, which is interesting because this variable is often reported as modulating foraging activity in some other termite species. This species forages on open trails at high temperatures in the Brazilian semi-arid zone. Environmental changes may affect the dynamics of their behavior and, consequently, the ecosystem, since C. cyphergaster influences the carbon cycle and can modify the soil. Our study provides a basis for future research intending to understand the adaptations of this termite to live in the drylands.
{"title":"Feeding substrate selection is not affected by the soil and environment temperature during the foraging of Constrictotermes cyphergaster","authors":"M. Oliveira, Maria do Socorro Lacerda Rolim, Derick Lira, M. A. Bezerra-Gusmão","doi":"10.22571/2526-4338594","DOIUrl":"https://doi.org/10.22571/2526-4338594","url":null,"abstract":"Termites are known as wood consumers, although some species eat other substrates. Assessing resource selection is important to understanding their biology. The present study provides information on the foraging behavior of Constrictotermes cyphergaster (Blattaria, Termitidae) in a dry forest area of Caatinga in Brazil. We aimed to verify the frequency of resource exploitation by termites as a function of environmental and soil temperatures. We found no significant differences in resource exploitation as a function of temperature, which is interesting because this variable is often reported as modulating foraging activity in some other termite species. This species forages on open trails at high temperatures in the Brazilian semi-arid zone. Environmental changes may affect the dynamics of their behavior and, consequently, the ecosystem, since C. cyphergaster influences the carbon cycle and can modify the soil. Our study provides a basis for future research intending to understand the adaptations of this termite to live in the drylands.","PeriodicalId":41699,"journal":{"name":"Acta Brasiliensis","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42079523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Camila Estelita Vogeley Alves de Sá, Luiz Gonzaga Biones Ferraz, L. Cavalcanti
Arecaceae plants provide favorable microhabitats for the development of myxomycetes, but researches focusing on myxomycetes associated with palm trees are scarce. The myxobiota present on Cocos nucifera L. was evaluated in coconut groves in the municipality of Bonito, Pernambuco, Brazil. The incidence of myxomycetes on coconut palms and substrates and their composition, richness, taxonomic diversity, constancy, abundance, and seasonality of sporulation were analyzed. During direct field collections, inspections were made of the stems, leaf sheaths, inflorescence bracts, and petiole bases of 60 adult individuals. Myxomycetes were present in 80% of the coconut palms and were more abundant during the rainy season (June). A total of 128 specimens were obtained (63% from leaf sheaths, 31% from stems, 4% from petiole bases, and 2% from bracts), representing 14 species, with species/genus ratio = 2.80. Hemitrichia serpula, Physarum decipiens and Diderma effusum characterize the myxobiota. This work presents the first record of Diderma chondrioderma, Didymium clavus, Physarum crateriforme and P. roseum on C. nucifera for Brazil. The ocurrence of Didymium megalosporum in Brazil is confirmed 107 years after its first and only record in ground litter in an undefined location.
{"title":"Assemblages of Myxomycetes associated with Cocos nucifera L. trees","authors":"Camila Estelita Vogeley Alves de Sá, Luiz Gonzaga Biones Ferraz, L. Cavalcanti","doi":"10.22571/2526-4338587","DOIUrl":"https://doi.org/10.22571/2526-4338587","url":null,"abstract":"Arecaceae plants provide favorable microhabitats for the development of myxomycetes, but researches focusing on myxomycetes associated with palm trees are scarce. The myxobiota present on Cocos nucifera L. was evaluated in coconut groves in the municipality of Bonito, Pernambuco, Brazil. The incidence of myxomycetes on coconut palms and substrates and their composition, richness, taxonomic diversity, constancy, abundance, and seasonality of sporulation were analyzed. During direct field collections, inspections were made of the stems, leaf sheaths, inflorescence bracts, and petiole bases of 60 adult individuals. Myxomycetes were present in 80% of the coconut palms and were more abundant during the rainy season (June). A total of 128 specimens were obtained (63% from leaf sheaths, 31% from stems, 4% from petiole bases, and 2% from bracts), representing 14 species, with species/genus ratio = 2.80. Hemitrichia serpula, Physarum decipiens and Diderma effusum characterize the myxobiota. This work presents the first record of Diderma chondrioderma, Didymium clavus, Physarum crateriforme and P. roseum on C. nucifera for Brazil. The ocurrence of Didymium megalosporum in Brazil is confirmed 107 years after its first and only record in ground litter in an undefined location.","PeriodicalId":41699,"journal":{"name":"Acta Brasiliensis","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43903938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Regigláucia Rodrigues de Oliveira, G. Silva, M. Pastore, Jeromar Dos Santos Nascimento
A synopsis of Convolvulaceae species from the Upper Turi-Gurupi region, a strategic area for the conservation of Amazonian biodiversity in the state of Maranhão, is presented. Field samples and herbarium collections were analyzed to build a list of species, indicating the most representative taxa and providing data on growth habit, geographic distribution, occurrence in Brazilian phytogeographic domains, and distribution in the Upper Turi-Gurupi region. Twenty-one species and nine genera (Aniseia Choisy, Bonamia Thouars, Camonea Raf., Distimake Raf., Evolvulus L., Ipomoea L., Maripa Aubl., Odonellia K.R. Robertson, and Operculina Silva Manso) were recorded. Ipomoea was the most representative genus, with 10 species, and Ipomoea asarifolia was the most collected species. Maripa scandens Aubl. is a new record for the state of Maranhão and in relation to the last taxonomic work of Convolvulaceae in the Amazon, which covered Maranhão, 10 species are new records for the state. A heterogeneous distribution of the species and sampling gaps of Convolvulaceae were observed in the region, pointing to the need for further surveys. This study contributes to the knowledge of this botanical family in the Amazon territory and stimulates the conservation of the Amazonian flora in Maranhão, since the study area is under strong pressure from environmental degradation and is one of the most threatened in terms of biodiversity loss in the Amazon.
{"title":"A synopsis of Convolvulaceae from the Upper Turi-Gurupi region in the Amazon of Maranhão, Brazil","authors":"Regigláucia Rodrigues de Oliveira, G. Silva, M. Pastore, Jeromar Dos Santos Nascimento","doi":"10.22571/2526-4338574","DOIUrl":"https://doi.org/10.22571/2526-4338574","url":null,"abstract":"A synopsis of Convolvulaceae species from the Upper Turi-Gurupi region, a strategic area for the conservation of Amazonian biodiversity in the state of Maranhão, is presented. Field samples and herbarium collections were analyzed to build a list of species, indicating the most representative taxa and providing data on growth habit, geographic distribution, occurrence in Brazilian phytogeographic domains, and distribution in the Upper Turi-Gurupi region. Twenty-one species and nine genera (Aniseia Choisy, Bonamia Thouars, Camonea Raf., Distimake Raf., Evolvulus L., Ipomoea L., Maripa Aubl., Odonellia K.R. Robertson, and Operculina Silva Manso) were recorded. Ipomoea was the most representative genus, with 10 species, and Ipomoea asarifolia was the most collected species. Maripa scandens Aubl. is a new record for the state of Maranhão and in relation to the last taxonomic work of Convolvulaceae in the Amazon, which covered Maranhão, 10 species are new records for the state. A heterogeneous distribution of the species and sampling gaps of Convolvulaceae were observed in the region, pointing to the need for further surveys. This study contributes to the knowledge of this botanical family in the Amazon territory and stimulates the conservation of the Amazonian flora in Maranhão, since the study area is under strong pressure from environmental degradation and is one of the most threatened in terms of biodiversity loss in the Amazon.","PeriodicalId":41699,"journal":{"name":"Acta Brasiliensis","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48859419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Gabrielle França Ribeiro, Natalia Maria Martinazzo Angelo, Júlia Elizabeth Proença, Sonia Purin da Cruz
The quality of water used for human consumption related to the absence of coliforms, which, which may cause diseases and exhibit antimicrobial resistance, a frequent issue in places with poor or non-existent environmental sanitation. The present study evaluated the concentrations of total and thermotolerant coliforms in rivers and wells in Curitibanos (SC), as well as the phenotypic resistance to four antibiotics (Ampicillin, Ampicillin+Sulbactam, Ciprofloxacin and Tetracycline), during four seasons of the year. Analysis of variance was performed and means were separated by the Scott-Knott test, at 5% error probability. In rivers, the highest values of fecal coliforms were recorded in summer and winter, and resistance to ampicillin and ampicillin+sulbactam was higher in autumn, while resistance to tetracycline was more prevalent in summer. In the wells, the highest averages of fecal coliforms occurred in summer, autumn and winter, and the highest levels of resistance were observed against ampicillin, in autumn. Overall, rivers had more compromised water quality, compared to wells, emphasizing the need to preserve aquatic resources in order to decrease evolution of resistance to antibiotics and diseases and deaths cause by superbacteria that may be ingested with contaminated water.
{"title":"Coliforms and antibiotic-resistant bacteria in water from rivers and wells at Curitibanos, Santa Catarina","authors":"Gabrielle França Ribeiro, Natalia Maria Martinazzo Angelo, Júlia Elizabeth Proença, Sonia Purin da Cruz","doi":"10.22571/2526-4338580","DOIUrl":"https://doi.org/10.22571/2526-4338580","url":null,"abstract":"The quality of water used for human consumption related to the absence of coliforms, which, which may cause diseases and exhibit antimicrobial resistance, a frequent issue in places with poor or non-existent environmental sanitation. The present study evaluated the concentrations of total and thermotolerant coliforms in rivers and wells in Curitibanos (SC), as well as the phenotypic resistance to four antibiotics (Ampicillin, Ampicillin+Sulbactam, Ciprofloxacin and Tetracycline), during four seasons of the year. Analysis of variance was performed and means were separated by the Scott-Knott test, at 5% error probability. In rivers, the highest values of fecal coliforms were recorded in summer and winter, and resistance to ampicillin and ampicillin+sulbactam was higher in autumn, while resistance to tetracycline was more prevalent in summer. In the wells, the highest averages of fecal coliforms occurred in summer, autumn and winter, and the highest levels of resistance were observed against ampicillin, in autumn. Overall, rivers had more compromised water quality, compared to wells, emphasizing the need to preserve aquatic resources in order to decrease evolution of resistance to antibiotics and diseases and deaths cause by superbacteria that may be ingested with contaminated water.","PeriodicalId":41699,"journal":{"name":"Acta Brasiliensis","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43797923","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The effect of tropospheric ozone on the physiology of plants has been well established using physicochemical analysis and visual assessment. One of the main metabolic processes, in plants that is affected by ozone, is photosynthesis. This in turn affects a number of secondary processes required for the survival of plants. This study focused on two main aspects; the qualitative determination of damage through visual assessment and the quantification of damage through the determination of the content of chlorophyll and other quality parameters using spectrophotometric techniques in a number of plant species. Three distinct setups were considered, mainly rural, urban and semiurban, representing the topography of the islands of Malta and Gozo. It was observed that chlorosis was not the sole factor contributing to the yellowing of the leaves. Another important finding was the correlation between ozone levels (50.18-69.35 ppb) and the anthocyanin content (2.57-28.99 mg/kg) of leaves. From the three plant species that were extensively studied (Nerium oleander, Pinus halepensis and Schinus terebinthifolius), the N. oleander exhibited promising results as a bioindicator for ozone-induced damage. Due to the presence of this ornamental plant in rural and urban areas, it can be used by researchers and authorities as a tool for assessment of tropospheric ozone levels.
{"title":"The effects of tropospheric ozone on plant species: New perspectives","authors":"Kirsty Vella, E. Attard","doi":"10.22571/2526-4338583","DOIUrl":"https://doi.org/10.22571/2526-4338583","url":null,"abstract":"The effect of tropospheric ozone on the physiology of plants has been well established using physicochemical analysis and visual assessment. One of the main metabolic processes, in plants that is affected by ozone, is photosynthesis. This in turn affects a number of secondary processes required for the survival of plants. This study focused on two main aspects; the qualitative determination of damage through visual assessment and the quantification of damage through the determination of the content of chlorophyll and other quality parameters using spectrophotometric techniques in a number of plant species. Three distinct setups were considered, mainly rural, urban and semiurban, representing the topography of the islands of Malta and Gozo. It was observed that chlorosis was not the sole factor contributing to the yellowing of the leaves. Another important finding was the correlation between ozone levels (50.18-69.35 ppb) and the anthocyanin content (2.57-28.99 mg/kg) of leaves. From the three plant species that were extensively studied (Nerium oleander, Pinus halepensis and Schinus terebinthifolius), the N. oleander exhibited promising results as a bioindicator for ozone-induced damage. Due to the presence of this ornamental plant in rural and urban areas, it can be used by researchers and authorities as a tool for assessment of tropospheric ozone levels.","PeriodicalId":41699,"journal":{"name":"Acta Brasiliensis","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43927175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Nascimento, G. S. Silva, Gonçalo Mendes Da Conceição
Paullinia cearensis Somner & Ferrucci (Sapindaceae) is an endemic species of Northeastern Brazil, hitherto known from the states of Ceará and Piauí, in areas of Caatinga and Atlantic Forest. The species is being recorded for the first time in the state of Maranhão and in the Brazilian Cerrado. It was collected in Morro do Alecrim, a remnant of Cerrado, in Caxias-Maranhão, during a botanical expedition in January 2021, where the species was found with fruits. A morphological description, taxonomic comments, data on geographic distribution, detailed images of the species, and an assessment of its conservation status, categorized as endangered, are presented. This data will contribute to the knowledge and conservation of this species for the northeastern flora.
Paullinia cearensis Somner&Ferrucci（Sapindaceae）是巴西东北部的一种特有物种，迄今为止已知于卡廷加和大西洋森林地区的Ceará州和Piauí州。该物种首次在马拉尼昂州和巴西塞拉多被记录在案。它是在2021年1月的一次植物探险中在Caxias Maranhão的Cerrado遗迹Morro do Alecrim采集的，在那里发现了该物种的果实。介绍了该物种的形态描述、分类学评论、地理分布数据、详细图像以及对其濒危物种保护状况的评估。这些数据将有助于东北植物群对该物种的了解和保护。
{"title":"A Expansion of the geographic distribution and conservation status of Paullinia cearensis Somner & Ferrucci (Sapindaceae)","authors":"J. Nascimento, G. S. Silva, Gonçalo Mendes Da Conceição","doi":"10.22571/2526-4338591","DOIUrl":"https://doi.org/10.22571/2526-4338591","url":null,"abstract":"Paullinia cearensis Somner & Ferrucci (Sapindaceae) is an endemic species of Northeastern Brazil, hitherto known from the states of Ceará and Piauí, in areas of Caatinga and Atlantic Forest. The species is being recorded for the first time in the state of Maranhão and in the Brazilian Cerrado. It was collected in Morro do Alecrim, a remnant of Cerrado, in Caxias-Maranhão, during a botanical expedition in January 2021, where the species was found with fruits. A morphological description, taxonomic comments, data on geographic distribution, detailed images of the species, and an assessment of its conservation status, categorized as endangered, are presented. This data will contribute to the knowledge and conservation of this species for the northeastern flora.","PeriodicalId":41699,"journal":{"name":"Acta Brasiliensis","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49580341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Claylton A. Costa, Lucas Rafael Uchôa, Sâmia Caroline Melo Araújo, Mariane Silva Oliveira, E. Andrade
Congeneric predation between two Leptodactylus species was recorded and information was collected on the predation strategy of L. macrosternum and the defensive behavior and distress call of L. fuscus. The entire predation event lasted about 90 min and ended when predator tore integument of the prey's ventral region, facilitating swallowing. The distress call description was based on a record of 40 s containing seven calls, consisting of a pulsatile and harmonically complex structure composed of two notes. Although the batrachophagy is well-documented in the genus Leptodactylus, descriptions of predatory and defensive behaviors are not fully described. Thus, the defensive behaviors observed here made predation a physiologically taxing event, while we look at how the predator can use various mechanisms to overcome prey defensive behaviors.
{"title":"Predator-prey: predation strategies of Leptodactylus macrosternum and defensive behavior of Leptodactylus fuscus","authors":"Claylton A. Costa, Lucas Rafael Uchôa, Sâmia Caroline Melo Araújo, Mariane Silva Oliveira, E. Andrade","doi":"10.22571/2526-4338586","DOIUrl":"https://doi.org/10.22571/2526-4338586","url":null,"abstract":"Congeneric predation between two Leptodactylus species was recorded and information was collected on the predation strategy of L. macrosternum and the defensive behavior and distress call of L. fuscus. The entire predation event lasted about 90 min and ended when predator tore integument of the prey's ventral region, facilitating swallowing. The distress call description was based on a record of 40 s containing seven calls, consisting of a pulsatile and harmonically complex structure composed of two notes. Although the batrachophagy is well-documented in the genus Leptodactylus, descriptions of predatory and defensive behaviors are not fully described. Thus, the defensive behaviors observed here made predation a physiologically taxing event, while we look at how the predator can use various mechanisms to overcome prey defensive behaviors.","PeriodicalId":41699,"journal":{"name":"Acta Brasiliensis","volume":"1 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68222088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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