Acta Botanica Brasilica最新文献_第5页

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

Acta Botanica Brasilica Pub Date : 2023-01-01 DOI: 10.1590/1677-941x-abb-2023-0086

Clebiana de Sá Nunes, Rafael Trevisan, André dos Santos Bragança Gil

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

Acta Botanica Brasilica 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

{"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}

引用次数: 0

Contact with natural areas influences Brazilian high school students’ ability to recognize native plant species 与自然区域的接触影响了巴西高中生识别本地植物物种的能力

4区生物学

Acta Botanica Brasilica Pub Date : 2023-01-01 DOI: 10.1590/1677-941x-abb-2021-0249

Patrícia da Silva Sousa, Maria Jaislanny Lacerda e Medeiros, Letícia Sousa dos Santos Ferreira, Clarissa Gomes Reis Lopes

{"title":"Contact with natural areas influences Brazilian high school students’ ability to recognize native plant species","authors":"Patrícia da Silva Sousa, Maria Jaislanny Lacerda e Medeiros, Letícia Sousa dos Santos Ferreira, Clarissa Gomes Reis Lopes","doi":"10.1590/1677-941x-abb-2021-0249","DOIUrl":"https://doi.org/10.1590/1677-941x-abb-2021-0249","url":null,"abstract":"Limited experiential contact to natural environment can affect the knowledge of the local flora and, consequently, the intentions to conserve it. Therefore, this study aims to analyze whether high school students from Teresina (PI-Brazil) can identify more species of native than exotic plants and the factors that can affect this ability. 333 students from state public schools were interviewed through semi-structured questionnaires and with printed images of 20 species of plants found in the region. The data were analyzed using univariate non-parametric statistics. The results show that living in the countryside positively influenced the identification of local flora, but there was no significant difference in the number of identified plants between students who attended botany classes and those who did not. Two native plants (cashew-96.7% and pitomba-91.9%) and three exotic plants (mango-90.7%, guava-94.9% and acerola-82.0%) stood out among the most identified plant species. It was also found that, for two species of native plants very important for the State of Piauí, the caneleiro (0.6%) and the carnauba (26.7%), the identification rates were scarce. Thus, it is necessary to use Environmental Education and the teaching of Botany to prioritize native plant species, valuing local ecology and ensuring their protection.","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":"16 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":"136202815","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

Regional risk assessment of high-altitude field mosses 高海拔野外藓类区域风险评价

4区生物学

Acta Botanica Brasilica Pub Date : 2023-01-01 DOI: 10.1590/1677-941x-abb-2022-0291

Mateus Tomás Anselmo Gonçalves, Denilson Fernandes Peralta, Nivea Dias dos Santos

{"title":"Regional risk assessment of high-altitude field mosses","authors":"Mateus Tomás Anselmo Gonçalves, Denilson Fernandes Peralta, Nivea Dias dos Santos","doi":"10.1590/1677-941x-abb-2022-0291","DOIUrl":"https://doi.org/10.1590/1677-941x-abb-2022-0291","url":null,"abstract":"The Itatiaia National Park protects important Atlantic Forest remnants as well as a large number of rare bryophyte species. We reassessed the conservation status of 45 species of endemic and/or threatened mosses occurring in high-altitude fields in the Park. The conservation analysis followed the International Union for Conservation of Nature guidelines. The GeoCAT software was used to calculate the Extent of Occurrence (EOO) and Area of Occupancy (AOO). The threat vectors were characterized based on field observations and data from the literature. After the reassessment, 31 species were considered threatened, with 16 being considered vulnerable (VU), seven critically endangered (CR), and eight endangered (EN). Two species were considered “near threatened” (NT) and three were considered “data deficient” (DD), and seven were considered “least concern” (LC). The main threats in that region are wildfires and excessive tourism - factors that lower habitat quality and reduce their EOO and AOO. Recommendations to minimize imminent losses of the local bryoflora include incentives for research and microhabitat protection. Our results are designed to aid in the elaboration of conservation strategies for mosses in the Serra da Mantiqueira mountains.","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":"40 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":"135213661","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

Discovery of Backusella paraconstricta sp. nov. (Mucorales, Mucoromycota) in an upland forest in northeastern Brazil with an identification key for Backusella from the Americas 在巴西东北部的高地森林中发现了背孢菌(Mucorales, Mucoromycota)，并获得了美洲背孢菌的鉴定钥匙

4区生物学

Acta Botanica Brasilica Pub Date : 2023-01-01 DOI: 10.1590/1677-941x-abb-2023-0061

Francisca Robervania Soares dos Santos, Thalline Rafhaella Leite Cordeiro, Catarina Letícia Ferreira de Lima, Maria Alice Barbosa dos Santos, Leslie Waren Silva de Freitas, Eleni Gentekaki, Luciana Melo Sartori Gurgel, Cristina Maria de Souza-Motta, Hyang Burm Lee, André Luiz Cabral Monteiro de Azevedo Santiago

{"title":"Discovery of Backusella paraconstricta sp. nov. (Mucorales, Mucoromycota) in an upland forest in northeastern Brazil with an identification key for Backusella from the Americas","authors":"Francisca Robervania Soares dos Santos, Thalline Rafhaella Leite Cordeiro, Catarina Letícia Ferreira de Lima, Maria Alice Barbosa dos Santos, Leslie Waren Silva de Freitas, Eleni Gentekaki, Luciana Melo Sartori Gurgel, Cristina Maria de Souza-Motta, Hyang Burm Lee, André Luiz Cabral Monteiro de Azevedo Santiago","doi":"10.1590/1677-941x-abb-2023-0061","DOIUrl":"https://doi.org/10.1590/1677-941x-abb-2023-0061","url":null,"abstract":"During a survey of mucoralean fungi in soil from an upland forest area located in Pernambuco, Brazil, a strain of Backusella (URM 8637) was isolated. Based on morphological, physiological, and molecular data [internal transcribed spacer (ITS) and large subunit (LSU) ribosomal DNA regions], it was recognized that this Backusella differed from all other species in the genus. Morphologically, the new species is characterized as forming varied-shaped columellae, including elongated, basally constricted, unisporate (rare) and multisporate sporangiola, and ellipsoidal sporangiospores. The maximum temperature growth of URM 8637 on malt extract agar and potato dextrose agar was 36 °C. In the phylogram, it was closely related to B. constricta. Based on the evidence from the analyzed datasets, a new species of Backusella is proposed. An updated identification key for Backusella from the Americas is provided.","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":"39 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":"135311599","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

Curcuma tuanii (Zingiberaceae) a new species of subgenus Ecomata from northern Vietnam based on morphological and molecular evidence 姜黄科姜黄亚属一新种——基于形态和分子证据的研究

4区生物学

Acta Botanica Brasilica Pub Date : 2023-01-01 DOI: 10.1590/1677-941x-abb-2023-0028

Hoang Tuan Nguyen, Ngọc Anh Nguyen, Leonid Averyanov, Danh Duc Nguyen, Chi Toan Le

引用次数: 0

Stachytarpheta lajedicola (Verbenaceae), a new species from the Caatinga of Minas Gerais state, Brazil: the first report of the genus in limestone outcrops 巴西米纳斯吉拉斯州Caatinga一新种——马鞭草属(Stachytarpheta lajedicola):该属首次在石灰岩露头中发现

4区生物学

Acta Botanica Brasilica Pub Date : 2023-01-01 DOI: 10.1590/1677-941x-abb-2023-0039

Pedro Henrique Cardoso, Gabriel Barros da Silva, Pablo Hendrigo Alves de Melo, Luiz Menini Neto, Marcelo Trovó

引用次数: 0

How climate change will change the potential distribution of two wood-decaying fungi? 气候变化将如何改变两种木材腐烂真菌的潜在分布?

4区生物学

Acta Botanica Brasilica Pub Date : 2023-01-01 DOI: 10.1590/1677-941x-abb-2023-0021

Danilo C. Santos, Ailton M. A. Oliveira, Renato L. M. Alvarenga, Tatiana B. Gibertoni

引用次数: 0

Morphometric studies suggest taxonomic changes in a species complex in Chromolaena (Asteraceae, Eupatorieae, Praxelinae) 形态计量学研究提示了一种杂种的分类学变化(Asteraceae, Eupatorieae, Praxelinae)

IF 1.1 4区生物学

Acta Botanica Brasilica Pub Date : 2022-12-19 DOI: 10.1590/1677-941x-abb-2022-0126

A. L. Christ, D. D. Saraiva, J. Nakajima, M. Ritter

{"title":"Morphometric studies suggest taxonomic changes in a species complex in Chromolaena (Asteraceae, Eupatorieae, Praxelinae)","authors":"A. L. Christ, D. D. Saraiva, J. Nakajima, M. Ritter","doi":"10.1590/1677-941x-abb-2022-0126","DOIUrl":"https://doi.org/10.1590/1677-941x-abb-2022-0126","url":null,"abstract":"The Chromolaena congesta complex (Asteraceae, Eupatorieae) presents a difficult challenge for biodiversity researchers due to the intertwined connections of its species and the difficulty of establishing morphological boundaries. In this study, we aimed to use morphometric analyses to evaluate the delimitation of the taxa belonging to the C. congesta complex, identify informative morphological traits and to understand the identity of several “atypical” specimens morphologically related to the complex. To achieve this, we used cluster and principal component analysis to evaluate 50 morphological traits from a total of 210 specimens throughout the geographic distribution of the species complex. We found support for the recognition of at least six species - Chromolaena ascendens , C. gentianoides , C. hirsuta , C. latisquamulosa , C. rhinanthacea and C. squarrulosa - according to a phenetic species concept and to corroborate the restoration of three species from synonymy. Furthermore, our results provide a morphological recircumscription of C. congesta and C. elliptica and indicate two taxonomic novelties, including a new combination and a new species. Despite the answers provided by morphology, many taxonomic issues remain to be solved, and further studies with other types of evidence should be carried to contribute towards a more stable","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":"51 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87208106","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

Pollen morphology of the early branching papilionoid legume genera Harleyodendron, Holocalyx and Uribea 早期分枝的凤尾花属豆科植物——杂交菜属、全新花属和乌兰属的花粉形态

IF 1.1 4区生物学

Acta Botanica Brasilica Pub Date : 2022-11-28 DOI: 10.1590/1677-941x-abb-2022-0208

Débora Cavalcante de Oliveira, Luis Carlos Casas Restrepo, Márcio Ferreira dos Santos, L. P. Queiroz, F. Santos

{"title":"Pollen morphology of the early branching papilionoid legume genera Harleyodendron, Holocalyx and Uribea","authors":"Débora Cavalcante de Oliveira, Luis Carlos Casas Restrepo, Márcio Ferreira dos Santos, L. P. Queiroz, F. Santos","doi":"10.1590/1677-941x-abb-2022-0208","DOIUrl":"https://doi.org/10.1590/1677-941x-abb-2022-0208","url":null,"abstract":"In this study, pollen grains of Harleyodendron unifoliolatum , Holocalyx balansae , and Uribea tamarindoides , three monospecific genera with Neotropical distribution belonging to the clade Exostyleae, one of the basal lineages of the family Leguminosae, subfamily Papilionoideae, were analyzed. The palynological material was acetolyzed and analyzed under light microscopy (LM) and scanning electron microscopy (SEM). Under LM, small and medium-sized pollen grains were observed, which showed a prolate-spheroidal to prolate shape, 3-colporate, microreticulate and reticulate exine, sexine and nexine of equal thickness in Harleyodendron and Holocalyx , while the sexine was thicker than nexine in Uribea . Analysis under SEM showed finely granulate, psilate, and granulate apertural membrane, while the exine ornamentation varied from perforate-microechinate in Harleyodendron , to perforate in Holocalyx , while in Uribea showed an irregular relief and granular projections on the perforate tectum. The pollen morphology of these species is similar to each other, varying in sexine/nexine ratio, apertural membrane, and exine ornamentation. Harleyodendron has a finely granulate apertural membrane, sexine and nexine of equal thickness, and a perforate-microreticulate exine ornamentation, Holocalyx shows a psilated apertural membrane, sexine and nexine of equal thickness, and exine ornamentation perforate, and Uribea has a granulate apertural membrane, sexine thicker than nexine, and exine ornamentation with granular projections.","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":"25 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81604467","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