Pub Date : 2022-01-01DOI: 10.1590/1677-941x-abb-2022-0205
Viviane Miranda Karam, T. M. S. Silva, F. Santos
The Northeastern Brazil has xerical vegetation with different biomes. Its botanical heterogeneity represents shelter for diverse fauna. The region is rich in bees, which demand the resources offered by the plants, and provide pollination services. Bee pollen has been used as a beneficial food source for humans due to its high nutritional content and being a natural antioxidant. Pollen analysis can determine the plant species visited by bees, using them as the source of pollen supply. This study aimed to identify the main pollen types present in the pollen collected by Apis mellifera in the Northeastern Brazil and to define its botanical affinity. Commercial bee pollen samples produced in the region were treated by acetolysis method, mounted on slides, and the frequency of occurrence was estimated for each type of pollen. It was possible to distinguish 113 pollen types belonging to 35 botanical families, distributed in 92 genera. Fabaceae and Asteraceae were the families that most contributed to pollen types. Pollen types of Cocos nucifera and Myrcia were found in more than 50% of the samples. The families Arecaceae and Fabaceae showed high beekeeping potential. There is a striking similarity between the pollen samples from the states of Pernambuco and Rio Grande Norte.
{"title":"Pollen profile of bee pollen from semiarid Northeastern Brazil","authors":"Viviane Miranda Karam, T. M. S. Silva, F. Santos","doi":"10.1590/1677-941x-abb-2022-0205","DOIUrl":"https://doi.org/10.1590/1677-941x-abb-2022-0205","url":null,"abstract":"The Northeastern Brazil has xerical vegetation with different biomes. Its botanical heterogeneity represents shelter for diverse fauna. The region is rich in bees, which demand the resources offered by the plants, and provide pollination services. Bee pollen has been used as a beneficial food source for humans due to its high nutritional content and being a natural antioxidant. Pollen analysis can determine the plant species visited by bees, using them as the source of pollen supply. This study aimed to identify the main pollen types present in the pollen collected by Apis mellifera in the Northeastern Brazil and to define its botanical affinity. Commercial bee pollen samples produced in the region were treated by acetolysis method, mounted on slides, and the frequency of occurrence was estimated for each type of pollen. It was possible to distinguish 113 pollen types belonging to 35 botanical families, distributed in 92 genera. Fabaceae and Asteraceae were the families that most contributed to pollen types. Pollen types of Cocos nucifera and Myrcia were found in more than 50% of the samples. The families Arecaceae and Fabaceae showed high beekeeping potential. There is a striking similarity between the pollen samples from the states of Pernambuco and Rio Grande Norte.","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88250818","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}
Pub Date : 2022-01-01DOI: 10.1590/0102-33062021abb0103
Roberta Silva Teixeira, D. I. Rocha, J. R. Gonçalves, V. C. Dalvi
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{"title":"Development, structure, and secretion of leaf colleters in Clusia criuva Cambess. subsp. criuva (Clusiaceae)","authors":"Roberta Silva Teixeira, D. I. Rocha, J. R. Gonçalves, V. C. Dalvi","doi":"10.1590/0102-33062021abb0103","DOIUrl":"https://doi.org/10.1590/0102-33062021abb0103","url":null,"abstract":",","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73521232","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}
Pub Date : 2022-01-01DOI: 10.1590/0102-33062021abb0021
Andressa Zanella, F. T. Brum, Ana Carolina Petisco-Souza, Giulia Fischer Maccori, M. B. Carlucci
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{"title":"Tree species of the Araucaria Mixed Forest: which, how many and how threatened are they?","authors":"Andressa Zanella, F. T. Brum, Ana Carolina Petisco-Souza, Giulia Fischer Maccori, M. B. Carlucci","doi":"10.1590/0102-33062021abb0021","DOIUrl":"https://doi.org/10.1590/0102-33062021abb0021","url":null,"abstract":",","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87838949","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}
Pub Date : 2022-01-01DOI: 10.1590/0102-33062022abb0006
A. L. Alves, Ana Carla da Silva Santos, R. N. Barbosa, C. Souza-Motta, R. Melo, P. Tiago
Two new Penicillium species are reported from soil of an agroforestry system and an Atlantic Rainforest fragment in Pernambuco, Northeast Brazil. Using a polyphasic approach, combining partial β -tubulin ( BenA ), calmodulin ( CaM ), internal transcribed spacer (ITS), and RNA polymerase II second largest subunit ( RPB2 ) gene sequences and morphological characters, Penicillium gercinae sp. nov. (section Ramigena , series Georgiensia ) , and Penicillium stangiae sp. nov. (section Lanata-Divaricata , series Dalearum ) are described. Descriptions based on morphological features are provided. Penicillium gercinae is phylogenetically closely related to P. georgiense ; however, P. gercinae does not grow on Czapek yeast extract (CYA) and has monoverticillate and biverticillate conidiophores. Penicillium stangiae is phylogenetically closely related to P. penarojense and P. vanderhammenii . As diagnostic features, P. stangiae had slower growth on CYA (28-30 mm in 7 days) and on DG18 (6-7 mm in 7 days) and lacked the production of acid on creatine agar. This research contributes to the expansion of knowledge on the taxonomy and diversity of Penicillium species in Brazil.
{"title":"Penicillium gercinae and Penicillium stangiae (Eurotiomycetes, Ascomycota), two new species from soil in Brazil","authors":"A. L. Alves, Ana Carla da Silva Santos, R. N. Barbosa, C. Souza-Motta, R. Melo, P. Tiago","doi":"10.1590/0102-33062022abb0006","DOIUrl":"https://doi.org/10.1590/0102-33062022abb0006","url":null,"abstract":"Two new Penicillium species are reported from soil of an agroforestry system and an Atlantic Rainforest fragment in Pernambuco, Northeast Brazil. Using a polyphasic approach, combining partial β -tubulin ( BenA ), calmodulin ( CaM ), internal transcribed spacer (ITS), and RNA polymerase II second largest subunit ( RPB2 ) gene sequences and morphological characters, Penicillium gercinae sp. nov. (section Ramigena , series Georgiensia ) , and Penicillium stangiae sp. nov. (section Lanata-Divaricata , series Dalearum ) are described. Descriptions based on morphological features are provided. Penicillium gercinae is phylogenetically closely related to P. georgiense ; however, P. gercinae does not grow on Czapek yeast extract (CYA) and has monoverticillate and biverticillate conidiophores. Penicillium stangiae is phylogenetically closely related to P. penarojense and P. vanderhammenii . As diagnostic features, P. stangiae had slower growth on CYA (28-30 mm in 7 days) and on DG18 (6-7 mm in 7 days) and lacked the production of acid on creatine agar. This research contributes to the expansion of knowledge on the taxonomy and diversity of Penicillium species in Brazil.","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80582275","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}
Pub Date : 2022-01-01DOI: 10.1590/0102-33062021abb0258
L. Roth, M. Lorscheitter
The state of Rio Grande do Sul (RS) is located in the extreme south of Brazil, within a transition region between the tropical and subtropical zones of South America that has been frequently affected by fluctuations in climate and vegetation over the last millennia. Palynomorphs preserved in sediments have provided excellent study material for paleoenvironmental reconstitutions of this region, as they reveal the source organisms and their respective environments over geological time. The present study was conducted to provide additional palynological reference material preserved in Quaternary sediments from the RS coastal plain for paleoenvironmental reconstruction studies. Here, we present taxonomic descriptions of pollen from 29 angiosperm taxa extracted along two Quaternary sedimentary profiles: the Pirataba forest profile (29° 15’ S 49° 51’W) and the Faxinal forest profile (29° 21’ S 49° 45’ W), Torres municipality, in the extreme north of the coastal plain of RS. Ecological data and pollen photomicrographs accompany the taxonomic descriptions. This reference material, together with the other palynomorphs found in the two sedimentary profiles, was the basis for our study of paleoenvironments from the last millennia in southern Brazil, according to the dynamics of climate and vegetation.
{"title":"Angiosperm pollen grains in sedimentary profiles from two Brazilian Atlantic rainforests, northernmost coastal plain from Rio Grande do Sul, southern Brazil. Part II","authors":"L. Roth, M. Lorscheitter","doi":"10.1590/0102-33062021abb0258","DOIUrl":"https://doi.org/10.1590/0102-33062021abb0258","url":null,"abstract":"The state of Rio Grande do Sul (RS) is located in the extreme south of Brazil, within a transition region between the tropical and subtropical zones of South America that has been frequently affected by fluctuations in climate and vegetation over the last millennia. Palynomorphs preserved in sediments have provided excellent study material for paleoenvironmental reconstitutions of this region, as they reveal the source organisms and their respective environments over geological time. The present study was conducted to provide additional palynological reference material preserved in Quaternary sediments from the RS coastal plain for paleoenvironmental reconstruction studies. Here, we present taxonomic descriptions of pollen from 29 angiosperm taxa extracted along two Quaternary sedimentary profiles: the Pirataba forest profile (29° 15’ S 49° 51’W) and the Faxinal forest profile (29° 21’ S 49° 45’ W), Torres municipality, in the extreme north of the coastal plain of RS. Ecological data and pollen photomicrographs accompany the taxonomic descriptions. This reference material, together with the other palynomorphs found in the two sedimentary profiles, was the basis for our study of paleoenvironments from the last millennia in southern Brazil, according to the dynamics of climate and vegetation.","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79644313","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}
Pub Date : 2022-01-01DOI: 10.1590/0102-33062021abb0234
A. P. V. Cassol, R. Zanella, L. C. Torgan
This study aimed to determine if there are any differences in the attributes and composition of the phytoplankton and epiphyton communities between organic (OF) and conventional (CF) rice fields. We also strove to identify if there were any variations in these communities by comparing samples taken from two different periods (12 and 35 days) after the application of the herbicide clomazone and penoxsulam in CF. The farms are located in the Pampa Biome, Southern Brazil. Phytoplankton samples from the subsurface water and epiphyton samples from the rice stems were analyzed using the Utermöhl method. The CF and OF had distinct environmental conditions (pH, conductivity, and turbidity values), and the residual concentration of the herbicides decreased over time. There were no significant differences in epiphyton and phytoplankton density, or in phytoplankton richness, between the rice fields; only the epiphyton richness and taxonomic composition showed differences between the rice fields. Cyanobacteria and Chlorophyceae comprised a large proportion of the epiphytic density in CF and OF, respectively. However, Bacillariophyceae and Chlorophyceae had greater phytoplankton densities in CF and OF, respectively. The taxonomic composition of communities should be considered an effective tool to show the differences between the two cultivation systems.
{"title":"Do phytoplankton and epiphyton communities differ between organic and conventional rice fields?","authors":"A. P. V. Cassol, R. Zanella, L. C. Torgan","doi":"10.1590/0102-33062021abb0234","DOIUrl":"https://doi.org/10.1590/0102-33062021abb0234","url":null,"abstract":"This study aimed to determine if there are any differences in the attributes and composition of the phytoplankton and epiphyton communities between organic (OF) and conventional (CF) rice fields. We also strove to identify if there were any variations in these communities by comparing samples taken from two different periods (12 and 35 days) after the application of the herbicide clomazone and penoxsulam in CF. The farms are located in the Pampa Biome, Southern Brazil. Phytoplankton samples from the subsurface water and epiphyton samples from the rice stems were analyzed using the Utermöhl method. The CF and OF had distinct environmental conditions (pH, conductivity, and turbidity values), and the residual concentration of the herbicides decreased over time. There were no significant differences in epiphyton and phytoplankton density, or in phytoplankton richness, between the rice fields; only the epiphyton richness and taxonomic composition showed differences between the rice fields. Cyanobacteria and Chlorophyceae comprised a large proportion of the epiphytic density in CF and OF, respectively. However, Bacillariophyceae and Chlorophyceae had greater phytoplankton densities in CF and OF, respectively. The taxonomic composition of communities should be considered an effective tool to show the differences between the two cultivation systems.","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77374842","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}
Pub Date : 2022-01-01DOI: 10.1590/0102-33062021abb0275
A. Gioda, Renata Everett Valladares, Ivo Ian Leão Teixeira, M. D. A. Araújo Júnior, C. Massone
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{"title":"Evaluation of baseline firewood consumption for domestic cooking in low-income rural households in Bahia, Brazil","authors":"A. Gioda, Renata Everett Valladares, Ivo Ian Leão Teixeira, M. D. A. Araújo Júnior, C. Massone","doi":"10.1590/0102-33062021abb0275","DOIUrl":"https://doi.org/10.1590/0102-33062021abb0275","url":null,"abstract":",","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75464402","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}
Pub Date : 2022-01-01DOI: 10.1590/0102-33062021abb0242
Ebenézer B. Rodrigues, H. Consolaro, R. Pérez-Barrales, P. Oliveira
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{"title":"Evolution of distyly breakdown in Palicoureeae Robbr. & Manen and Psychotrieae Cham. & Schltdl. (Rubiaceae)","authors":"Ebenézer B. Rodrigues, H. Consolaro, R. Pérez-Barrales, P. Oliveira","doi":"10.1590/0102-33062021abb0242","DOIUrl":"https://doi.org/10.1590/0102-33062021abb0242","url":null,"abstract":",","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83233899","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}
Pub Date : 2022-01-01DOI: 10.1590/0102-33062021abb0183
G. Antar, R. Harley, J. Pastore, D. Demarco, P. Sano
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{"title":"Leaf venation reveals its potential for the taxonomy of Hyptidendron Harley (Lamiaceae - Hyptidinae) and supports the recognition of a new species, Hyptidendron cerradoense","authors":"G. Antar, R. Harley, J. Pastore, D. Demarco, P. Sano","doi":"10.1590/0102-33062021abb0183","DOIUrl":"https://doi.org/10.1590/0102-33062021abb0183","url":null,"abstract":",","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90443285","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}
Pub Date : 2022-01-01DOI: 10.1590/0102-33062021abb0253
V. T. Tran, Tuan Phuong Nguyen Hoang, T. Croat, Zheng-xue Ma, Bing-Guang Liu, V. D. Nguyen, Chi‐Toan Le
{"title":"Reconstruction of the evolutionary biogeography reveals the origin and diversification of Arisaema (Araceae)","authors":"V. T. Tran, Tuan Phuong Nguyen Hoang, T. Croat, Zheng-xue Ma, Bing-Guang Liu, V. D. Nguyen, Chi‐Toan Le","doi":"10.1590/0102-33062021abb0253","DOIUrl":"https://doi.org/10.1590/0102-33062021abb0253","url":null,"abstract":"","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75227501","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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