Acta Botanica Brasilica最新文献_第10页

Revised delimitation of Croton campestris (Euphorbiaceae), including description of two new species, molecular phylogenetic, anatomical and micromorphological data 修订大戟科Croton campestris (Euphorbiaceae)的界定，包括两个新种的描述、分子系统发育、解剖和微形态学资料

IF 1.1 4区生物学

Acta Botanica Brasilica Pub Date : 2022-01-01 DOI: 10.1590/0102-33062021abb0163

R. C. Sodré, A. A. Alonso, Marcos José da Silva

{"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}

引用次数: 1

Two new species of Mikania Willd. (Asteraceae: Eupatorieae) from Minas Gerais State, Brazil 标题野生薇甘菊二新种。巴西米纳斯吉拉斯州的一种菊科植物

IF 1.1 4区生物学

Acta Botanica Brasilica Pub Date : 2022-01-01 DOI: 10.1590/0102-33062021abb0329

C. T. Oliveira, G. Antar, P. Gonella, J. Pirani

引用次数: 0

An updated checklist reveals strong incongruities with previous studies: insights after revisiting a regional orchid list 更新后的清单显示了与以前的研究的强烈不一致:重新访问地区兰花清单后的见解

IF 1.1 4区生物学

Acta Botanica Brasilica Pub Date : 2022-01-01 DOI: 10.1590/0102-33062020abb0487

E. Pessoa, Maycon Jordan Costa da Silva, Miguel Sena de Oliveira, Wagner Ribeiro da Silva Junior, A. W. Ferreira

引用次数: 2

Gene flow affects the genetic diversity of Copaifera langsdorffii Desf. in Cerrado 基因流动对黄花蒿遗传多样性的影响。在塞拉多

IF 1.1 4区生物学

Acta Botanica Brasilica Pub Date : 2022-01-01 DOI: 10.1590/1677-941x-abb-2022-0007

C. Serrote, L. Reiniger, K. B. D. Silva, Charlene Moro Stefanel

引用次数: 0

Sucupira-branca (Pterodon - Fabaceae): does wood anatomy support the distinction among species and hybrid? 翼龙-豆科:木材解剖学是否支持种属和杂种的区分?

IF 1.1 4区生物学

Acta Botanica Brasilica Pub Date : 2022-01-01 DOI: 10.1590/0102-33062021abb0124

Júlia Sonsin-Oliveira, Victor Hugo Dias Santiago, C. Fagg, R. Oliveira, Dulce Maria Sucena Rocha

引用次数: 1

A new pruinose lichen species in genus Lobothallia (Megasporaceae, lichen forming Ascomycota) from Pakistan 标题巴基斯坦大孢子菌属一新种。地衣形成子囊菌

IF 1.1 4区生物学

Acta Botanica Brasilica Pub Date : 2022-01-01 DOI: 10.1590/0102-33062021abb0225

A. Ashraf, K. Habib, A. Khalid

引用次数: 1

Quilombola Ethnomedicine: The Role of Age, Gender, and Culture Change Quilombola民族医学:年龄，性别和文化变化的作用

IF 1.1 4区生物学

Acta Botanica Brasilica Pub Date : 2022-01-01 DOI: 10.1590/0102-33062020abb0500

Bruna Farias de Santana, R. Voeks, L. S. Funch

引用次数: 1

Endemic Papilionoideae of the Caatinga: a contribution to the palynological knowledge of Leguminosae 卡廷加特有的凤蝶科:对豆科孢粉学知识的贡献

IF 1.1 4区生物学

Acta Botanica Brasilica Pub Date : 2022-01-01 DOI: 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

引用次数: 1

A new species of Lecidella (Lecanorales, Ascomycota) from Azad Jammu and Kashmir, Pakistan 文章题目巴基斯坦查谟和克什米尔地区子囊菌门(Lecanorales，子囊菌科)一新种

IF 1.1 4区生物学

Acta Botanica Brasilica Pub Date : 2022-01-01 DOI: 10.1590/0102-33062021abb0324

I. Fayyaz, N. Afshan, A. R. Niazi, A. Khalid, Ulrike Ruprecht

引用次数: 0

Endophytic fungi from an overlooked plant species: A case study in Kelissa brasiliensis (Baker) Ravenna 来自一个被忽视的植物物种的内生真菌:一个在Kelissa brasiliensis (Baker) Ravenna的案例研究

IF 1.1 4区生物学

Acta Botanica Brasilica Pub Date : 2022-01-01 DOI: 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

{"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}

引用次数: 2