Pub Date : 2022-01-01DOI: 10.1590/0102-33062021abb0163
R. C. Sodré, A. A. Alonso, Marcos José da Silva
Croton section Adenophylli is the largest section in the genus, with around 223 species distributed in the neotropical region. One of the main diagnostic characteristics of this section is the fruit columella, which has three prominent ascending terminal appendages. During a taxonomic review of this section in Brazil, we observed that C. campestris has a problematic taxonomic circumscription, thereby being confused with some other congeners. We investigate the circumscription of C. campestris through the examination of several herbarium specimens across its entire geographic range, and in its different habitats. We conducted macro-and micro-morphological studies as well as molecular analyses based on DNA sequences. Our results allow us to propose two new species ( C. hatschbachii and C. stellatorotatus ), update the nomenclature of C. campestris and C. subvillosus , and define the systematic positions, phylogenetic relationships, morphology and leaf anatomy of the above-mentioned taxa. The species are described, and their geographic distributions, morphological relationships, flowering and fruiting times, and conservation statuses are commented on. The two new species are also illustrated. Seventeen new synonyms, thirteen lectotypes and two neotypes are proposed. We also provide a key for the identification of 11 taxa belonging to the section Adenophylli , previously confused with C. campestris .
{"title":"Revised delimitation of Croton campestris (Euphorbiaceae), including description of two new species, molecular phylogenetic, anatomical and micromorphological data","authors":"R. C. Sodré, A. A. Alonso, Marcos José da Silva","doi":"10.1590/0102-33062021abb0163","DOIUrl":"https://doi.org/10.1590/0102-33062021abb0163","url":null,"abstract":"Croton section Adenophylli is the largest section in the genus, with around 223 species distributed in the neotropical region. One of the main diagnostic characteristics of this section is the fruit columella, which has three prominent ascending terminal appendages. During a taxonomic review of this section in Brazil, we observed that C. campestris has a problematic taxonomic circumscription, thereby being confused with some other congeners. We investigate the circumscription of C. campestris through the examination of several herbarium specimens across its entire geographic range, and in its different habitats. We conducted macro-and micro-morphological studies as well as molecular analyses based on DNA sequences. Our results allow us to propose two new species ( C. hatschbachii and C. stellatorotatus ), update the nomenclature of C. campestris and C. subvillosus , and define the systematic positions, phylogenetic relationships, morphology and leaf anatomy of the above-mentioned taxa. The species are described, and their geographic distributions, morphological relationships, flowering and fruiting times, and conservation statuses are commented on. The two new species are also illustrated. Seventeen new synonyms, thirteen lectotypes and two neotypes are proposed. We also provide a key for the identification of 11 taxa belonging to the section Adenophylli , previously confused with C. campestris .","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":"9 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88887110","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: 10.1590/0102-33062021abb0329
C. T. Oliveira, G. Antar, P. Gonella, J. Pirani
,
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{"title":"Two new species of Mikania Willd. (Asteraceae: Eupatorieae) from Minas Gerais State, Brazil","authors":"C. T. Oliveira, G. Antar, P. Gonella, J. Pirani","doi":"10.1590/0102-33062021abb0329","DOIUrl":"https://doi.org/10.1590/0102-33062021abb0329","url":null,"abstract":",","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":"50 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75818634","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: 10.1590/0102-33062020abb0487
E. Pessoa, Maycon Jordan Costa da Silva, Miguel Sena de Oliveira, Wagner Ribeiro da Silva Junior, A. W. Ferreira
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{"title":"An updated checklist reveals strong incongruities with previous studies: insights after revisiting a regional orchid list","authors":"E. Pessoa, Maycon Jordan Costa da Silva, Miguel Sena de Oliveira, Wagner Ribeiro da Silva Junior, A. W. Ferreira","doi":"10.1590/0102-33062020abb0487","DOIUrl":"https://doi.org/10.1590/0102-33062020abb0487","url":null,"abstract":",","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":"18 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85899192","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: 10.1590/1677-941x-abb-2022-0007
C. Serrote, L. Reiniger, K. B. D. Silva, Charlene Moro Stefanel
Gene flow allows connectivity of geographically isolated populations and which genetic diversity is reduced. Understanding how gene flow occurs is essential to conservation and selection of priority populations for intervention. In this study, the rates of migration and selfing of Copaifera langsdorffii Desf. sampled in Cerrado fragments in the State of São Paulo, Brazil, were estimated through computer simulations. Different selfing and migration rates were tested and the combination that showed values of observed and expected heterozygosity closest to those previously obtained with microsatellite markers was selected. According to the simulations, selfing and migration were low. Due to the high geographical distances among the fragments, gene flow was limited and may have led to low genetic diversity in the fragments. It is recommend enriching the area with high genetic diversity germplasm and reducing disturbance to promote the occurrence of pollinators, in order to increase the genetic diversity.
{"title":"Gene flow affects the genetic diversity of Copaifera langsdorffii Desf. in Cerrado","authors":"C. Serrote, L. Reiniger, K. B. D. Silva, Charlene Moro Stefanel","doi":"10.1590/1677-941x-abb-2022-0007","DOIUrl":"https://doi.org/10.1590/1677-941x-abb-2022-0007","url":null,"abstract":"Gene flow allows connectivity of geographically isolated populations and which genetic diversity is reduced. Understanding how gene flow occurs is essential to conservation and selection of priority populations for intervention. In this study, the rates of migration and selfing of Copaifera langsdorffii Desf. sampled in Cerrado fragments in the State of São Paulo, Brazil, were estimated through computer simulations. Different selfing and migration rates were tested and the combination that showed values of observed and expected heterozygosity closest to those previously obtained with microsatellite markers was selected. According to the simulations, selfing and migration were low. Due to the high geographical distances among the fragments, gene flow was limited and may have led to low genetic diversity in the fragments. It is recommend enriching the area with high genetic diversity germplasm and reducing disturbance to promote the occurrence of pollinators, in order to increase the genetic diversity.","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":"120 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86138152","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: 10.1590/0102-33062021abb0124
Júlia Sonsin-Oliveira, Victor Hugo Dias Santiago, C. Fagg, R. Oliveira, Dulce Maria Sucena Rocha
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{"title":"Sucupira-branca (Pterodon - Fabaceae): does wood anatomy support the distinction among species and hybrid?","authors":"Júlia Sonsin-Oliveira, Victor Hugo Dias Santiago, C. Fagg, R. Oliveira, Dulce Maria Sucena Rocha","doi":"10.1590/0102-33062021abb0124","DOIUrl":"https://doi.org/10.1590/0102-33062021abb0124","url":null,"abstract":",","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":"24 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84496161","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: 10.1590/0102-33062021abb0225
A. Ashraf, K. Habib, A. Khalid
{"title":"A new pruinose lichen species in genus Lobothallia (Megasporaceae, lichen forming Ascomycota) from Pakistan","authors":"A. Ashraf, K. Habib, A. Khalid","doi":"10.1590/0102-33062021abb0225","DOIUrl":"https://doi.org/10.1590/0102-33062021abb0225","url":null,"abstract":"","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":"105 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73647268","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: 10.1590/0102-33062020abb0500
Bruna Farias de Santana, R. Voeks, L. S. Funch
{"title":"Quilombola Ethnomedicine: The Role of Age, Gender, and Culture Change","authors":"Bruna Farias de Santana, R. Voeks, L. S. Funch","doi":"10.1590/0102-33062020abb0500","DOIUrl":"https://doi.org/10.1590/0102-33062020abb0500","url":null,"abstract":"","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":"38 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88316170","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: 10.1590/0102-33062021abb0150
José Orlando Bispo dos Santos, Adriele Santana da Silva Oliveira Carneiro, Ilana Marques de Souza Dias, M. D. Saba, L. Lima, Francisco Hilder Magalhães-e-Silva
{"title":"Endemic Papilionoideae of the Caatinga: a contribution to the palynological knowledge of Leguminosae","authors":"José Orlando Bispo dos Santos, Adriele Santana da Silva Oliveira Carneiro, Ilana Marques de Souza Dias, M. D. Saba, L. Lima, Francisco Hilder Magalhães-e-Silva","doi":"10.1590/0102-33062021abb0150","DOIUrl":"https://doi.org/10.1590/0102-33062021abb0150","url":null,"abstract":"","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":"74 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90594702","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: 10.1590/0102-33062021abb0324
I. Fayyaz, N. Afshan, A. R. Niazi, A. Khalid, Ulrike Ruprecht
{"title":"A new species of Lecidella (Lecanorales, Ascomycota) from Azad Jammu and Kashmir, Pakistan","authors":"I. Fayyaz, N. Afshan, A. R. Niazi, A. Khalid, Ulrike Ruprecht","doi":"10.1590/0102-33062021abb0324","DOIUrl":"https://doi.org/10.1590/0102-33062021abb0324","url":null,"abstract":"","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":"21 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75113732","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: 10.1590/0102-33062020abb0426
Guilherme Afonso Kessler de Andrade, J. Bezerra, Maria Victória Magalhães de Vargas, Bruna Mota Bernardes, Sara Navarrete Bohi Goulart, R. Alves, M. C. T. Küster, A. Pereira, F. Victoria
Studies involving endophytic fungi isolated from endemic plants and their antibacterial potential are largely unknown in the Pampa biome. In this study, we identified endophytic fungi isolated from Kelissa brasiliensis (Iridaceae), an endemic species of the Brazilian Pampa, and assessed their antibacterial activity. Endophytic fungi were first grouped based on macro-and micro-morphology, and one representative of each morphospecies was analyzed using sequences from the internal transcribed spacer (ITS) rDNA region. We then tested the fungal extracts against laboratory isolates of Staphylococcus aureus and Escherichia coli for antibacterial activity. A total of 30 endophytes were isolated from the tissues of K. brasiliensis , with the majority from the leaves. Endophytes were then grouped into seven morphospecies based on their morphological features and one representative from each was selected for phylogenetic analysis. The inference from the ITS rDNA sequences identified the endophytes of the seven selected morphospecies as belonging to six taxonomic groups: Colletotrichum (two), Diaporthe (one), Epicoccum (one), Fusarium (one), and Pestalotiopsis (one). The endophyte extracts revealed better results against E. coli than S. aureus , although the extracts from Colletotrichum and Pestalotiopsis sp. were statistically similar to the control antibiotic. Our study is a basis for endophytic fungi studies in Pampa.
{"title":"Endophytic fungi from an overlooked plant species: A case study in Kelissa brasiliensis (Baker) Ravenna","authors":"Guilherme Afonso Kessler de Andrade, J. Bezerra, Maria Victória Magalhães de Vargas, Bruna Mota Bernardes, Sara Navarrete Bohi Goulart, R. Alves, M. C. T. Küster, A. Pereira, F. Victoria","doi":"10.1590/0102-33062020abb0426","DOIUrl":"https://doi.org/10.1590/0102-33062020abb0426","url":null,"abstract":"Studies involving endophytic fungi isolated from endemic plants and their antibacterial potential are largely unknown in the Pampa biome. In this study, we identified endophytic fungi isolated from Kelissa brasiliensis (Iridaceae), an endemic species of the Brazilian Pampa, and assessed their antibacterial activity. Endophytic fungi were first grouped based on macro-and micro-morphology, and one representative of each morphospecies was analyzed using sequences from the internal transcribed spacer (ITS) rDNA region. We then tested the fungal extracts against laboratory isolates of Staphylococcus aureus and Escherichia coli for antibacterial activity. A total of 30 endophytes were isolated from the tissues of K. brasiliensis , with the majority from the leaves. Endophytes were then grouped into seven morphospecies based on their morphological features and one representative from each was selected for phylogenetic analysis. The inference from the ITS rDNA sequences identified the endophytes of the seven selected morphospecies as belonging to six taxonomic groups: Colletotrichum (two), Diaporthe (one), Epicoccum (one), Fusarium (one), and Pestalotiopsis (one). The endophyte extracts revealed better results against E. coli than S. aureus , although the extracts from Colletotrichum and Pestalotiopsis sp. were statistically similar to the control antibiotic. Our study is a basis for endophytic fungi studies in Pampa.","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":"86 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84150257","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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