Acta Botanica Brasilica最新文献_第8页

Determining factors of flower coloration 花卉颜色的决定因素

IF 1.1 4区生物学

Acta Botanica Brasilica Pub Date : 2022-01-01 DOI: 10.1590/0102-33062021abb0299

M. F. Erickson, D. M. Pessoa

{"title":"Determining factors of flower coloration","authors":"M. F. Erickson, D. M. Pessoa","doi":"10.1590/0102-33062021abb0299","DOIUrl":"https://doi.org/10.1590/0102-33062021abb0299","url":null,"abstract":"Diversity and distribution of flower coloration is a puzzling topic that has been extensively studied, with multiple hypotheses being proposed to account for the functions of coloration, such as pollinator attraction, protection against herbivory, and prevention of damage by ultraviolet light. Recent methodologies have allowed studies to consider the visual system of animals other than humans, helping to answer questions regarding the distribution of flower coloration. A survey of keywords in Web of Science shows floral color to be mainly studied in relation to macroevolutionary traits and biochemistry of pigments, focusing on pollination and anthocyanins, respectively. The present paper reviews mechanisms that determine the color of flowers. First, it is discussed how pigment, visual systems and signaling environments influence flower color; secondly, patterns of convergent evolution of flower color is debated, including evolutionary history, pollinator preference, flower color change, flowering season, and habitat. Third and last, patterns of flower coloration that have been found around the globe are addressed. In short, the aim is to contribute to ongoing research, by underlining mechanisms that lead to global patterns of coloration and indicating perspectives for future study on the topic.","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":"7 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73828176","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

Synopsis of Anomobryum and Bryum (Bryaceae, Bryophyta) in Brazil 标题巴西异常苔藓属和苔藓属(苔藓科，苔藓植物)概述

IF 1.1 4区生物学

Acta Botanica Brasilica Pub Date : 2022-01-01 DOI: 10.1590/0102-33062021abb0283

B. K. Canestraro, D. F. Peralta

引用次数: 2

Complementary allometric model of understory tree biomass in the semi-deciduous rainforest of Cameroon 喀麦隆半落叶雨林林下树木生物量的互补异速生长模型

IF 1.1 4区生物学

Acta Botanica Brasilica Pub Date : 2022-01-01 DOI: 10.1590/0102-33062020abb0475

Amandine Flore Yonkeu Ntonmen, L. Zapfack, C. D. Chimi, Louis-Paul Roger Banoho Kabelong, J. C. Zekeng, B. N. Nfornkah, Ingrid Temfack Tsopmejio, Arsel D’Estaing Nanfack, Mireil Carol Votio Tchoupou, Nadège Tagnang Madountsap, G. Ngoukwa, Hubert Kpoumie Mounmemi, Roger Bruno Mbobda Tabue

引用次数: 0

In Silico analysis of Vitis vinifera Cabernet Sauvignon TOR and its responses to sugar and abscisic acid signaling 葡萄赤霞珠TOR及其对糖和脱落酸信号的响应

IF 1.1 4区生物学

Acta Botanica Brasilica Pub Date : 2022-01-01 DOI: 10.1590/0102-33062020abb0482

Ying Zhao, Xiu-Qin Wang

引用次数: 0

An integrative study of Pannaria hookeri (Ascomycota lichenized) from Argentina and the update of the taxon circumscription based on specimens from the Northern and Southern Hemispheres 阿根廷地衣子囊菌属(Pannaria hookeri)的综合研究及基于南北半球标本的分类群划分更新

IF 1.1 4区生物学

Acta Botanica Brasilica Pub Date : 2022-01-01 DOI: 10.1590/0102-33062021abb0357

M. J. Kitaura, M. Scur, A. Spielmann, A. Lorenz

{"title":"An integrative study of Pannaria hookeri (Ascomycota lichenized) from Argentina and the update of the taxon circumscription based on specimens from the Northern and Southern Hemispheres","authors":"M. J. Kitaura, M. Scur, A. Spielmann, A. Lorenz","doi":"10.1590/0102-33062021abb0357","DOIUrl":"https://doi.org/10.1590/0102-33062021abb0357","url":null,"abstract":"Pannaria hookeri (Borrer ex Sm.) Nyl. is reported as a bipolar cyanolichen that occurs in more than twenty countries in both Hemispheres. In the Northern Hemisphere, a minor variation is attributed to the species, whereas larger morphological and chemical variations have been reported in specimens from the Southern Hemisphere. Six P. hookeri DNA sequences are available in GenBank, and only one (from Australia) is associated with a published morphological description. In this study, we performed a preliminary phylogenetic analysis including seven nuITS and mtSSU sequences from eight specimens collected in south Argentina. In addition, we provide an update of the taxon circumscription based on 50 specimens from 13 countries. Here, the molecular analyses revealed a well-supported monophyletic group formed by the P. hookeri sequences from Argentina, Australia, Norway and USA (Alaska). Regarding the morphological and anatomical characteristics, the Southern Hemisphere specimens did not present the historical reported variations, resulting in the proposition of a concise species description that accomplishes most of P. hookeri known geographical distribution.","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":"44 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76424442","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

Extrafloral nectaries of an Atlantic Forest conservation area in Southeastern Brazil 巴西东南部大西洋森林保护区的花外蜜腺

IF 1.1 4区生物学

Acta Botanica Brasilica Pub Date : 2022-01-01 DOI: 10.1590/0102-33062021abb0187

V. S. Miranda, Lucas Gütler Rodrigues, Sandrine C. Dutra, Tathiana G. Sobrinho, Anderson Alves‐Araújo

{"title":"Extrafloral nectaries of an Atlantic Forest conservation area in Southeastern Brazil","authors":"V. S. Miranda, Lucas Gütler Rodrigues, Sandrine C. Dutra, Tathiana G. Sobrinho, Anderson Alves‐Araújo","doi":"10.1590/0102-33062021abb0187","DOIUrl":"https://doi.org/10.1590/0102-33062021abb0187","url":null,"abstract":"Although extrafloral nectaries (EFNs) are reported as extremely important to understand ecological interactions, the diversity of EFN-bearing plants remains underappreciated. In Brazil, studies are concentrated in Cerrado and extremely poorly known in other phytogeographic domains, such as Atlantic forest. Thus, this study provides one of the first checklists of angiosperms with EFNs in a protected area of the Brazilian Atlantic forest, bringing information about the richness, location of EFNs on the plant’s organs, as well as plant’s habit and conservation status. A total of 93 EFN-bearing species belonging to 61 genera and 29 families is reported, which corresponds to 16.5 % of the local flora. The vast majority has not been evaluated for their conservation status, and twenty species are endemic to the Brazilian Atlantic forest. Vines and trees are the predominant plant habits and EFNs are mostly found on leaves. More than half of the species (53.7 %) comprises new additions to the world list of EFN-bearing plants, including the first record in Dilleniaceae. Our findings show a large number of EFN-bearing plant species from a single and small protected area in the Brazilian Atlantic forest. It reinforces the lack of studies of this nature, where further investigations are strongly recommended.","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":"49 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82013741","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

Leaf venation reveals its potential for the taxonomy of Hyptidendron Harley (Lamiaceae - Hyptidinae) and supports the recognition of a new species, Hyptidendron cerradoense 叶片脉状结构揭示了其分类潜力，并支持了一新种Hyptidendron cerradoense的识别

IF 1.1 4区生物学

Acta Botanica Brasilica Pub Date : 2022-01-01 DOI: 10.1590/0102-33062021abb0183

G. Antar, R. Harley, J. Pastore, D. Demarco, P. Sano

引用次数: 2

Wildfire does not affect spore abundance, species richness, and inoculum potential of arbuscular mycorrhizal fungi (Glomeromycota) in ferruginous Canga ecosystems 野火不影响含铁cana生态系统中丛枝菌根真菌(Glomeromycota)的孢子丰度、物种丰富度和接种潜力

IF 1.1 4区生物学

Acta Botanica Brasilica Pub Date : 2022-01-01 DOI: 10.1590/0102-33062021abb0218

S. L. Stürmer, K. Heinz, Matheus Nicoletti Marascalchi, A. Giongo, J. Siqueira

{"title":"Wildfire does not affect spore abundance, species richness, and inoculum potential of arbuscular mycorrhizal fungi (Glomeromycota) in ferruginous Canga ecosystems","authors":"S. L. Stürmer, K. Heinz, Matheus Nicoletti Marascalchi, A. Giongo, J. Siqueira","doi":"10.1590/0102-33062021abb0218","DOIUrl":"https://doi.org/10.1590/0102-33062021abb0218","url":null,"abstract":"Canga ecosystems develop over superficial iron crusts with shallow and nutrient-poor soils. Under these conditions, arbuscular mycorrhizal fungi (AMF) play an important role in helping plants to overcome abiotic and biotic stresses. Canga can suffer periodic burning and yet it is unknown what the impacts of fire are to AMF communities. We aimed to compare AMF in Canga areas affected by burning (BC) with those with no previous history of burning (NC). We compared AMF species composition, spore numbers, species richness, and mycorrhizal inoculum potential. The total number of spores, AMF species richness and mycorrhizal colonization measured in the infectivity bioassay were not significantly different between areas. A total of 23 species in 10 genera were recovered, with most species belonging to Gigasporaceae and Acaulosporaceae. BC and NC shared 52 % of AMF species. Gigaspora albida, Gigaspora gigantea, and Dentiscutata heterogama sporulated exclusively in trap cultures. We concluded that AMF spore communities were not affected by burning in Canga soils as measured by spore abundance, species richness and infectivity. Our data contribute to the inventory of soil biodiversity associated with Canga, a high biodiverse and threatened Brazilian ecosystem.","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":"139 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86151402","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

Brazilian Atlantic Forest and Pampa Biomes in the spotlight: an overview of Aspergillus, Penicillium, and Talaromyces (Eurotiales) species and the description of Penicillium nordestinense sp. nov. 聚光灯下的巴西大西洋森林和潘帕草原生物群系:曲霉、青霉和Talaromyces (Eurotiales)物种综述和北目的地青霉的描述。

IF 1.1 4区生物学

Acta Botanica Brasilica Pub Date : 2022-01-01 DOI: 10.1590/0102-33062021abb0390

R. N. Barbosa, J. F. Santos, J. Bezerra, Ł. Istel, J. Houbraken, N. T. Oliveira, C. Souza-Motta

引用次数: 1

New records of Plantago trinitatis: spontaneous regeneration of a species considered extinct or sampling gaps on Trindade Island? 三位一体车前草的新记录:一个被认为已经灭绝的物种的自发再生或在特林达德岛的采样空白?

IF 1.1 4区生物学

Acta Botanica Brasilica Pub Date : 2022-01-01 DOI: 10.1590/0102-33062022abb0048

Hilton Entringer Jr, Karina Ferreira-Santos, A. C. Srbek‐Araujo

{"title":"New records of Plantago trinitatis: spontaneous regeneration of a species considered extinct or sampling gaps on Trindade Island?","authors":"Hilton Entringer Jr, Karina Ferreira-Santos, A. C. Srbek‐Araujo","doi":"10.1590/0102-33062022abb0048","DOIUrl":"https://doi.org/10.1590/0102-33062022abb0048","url":null,"abstract":"Trindade Island has lost much of its original vegetation cover as a result of approximately three centuries of human occupation and intense herbivory caused by invasive mammals. Since the eradication of some of these herbivores, the recovery of some plant species has started. Plantago trinitatis is an endemic herb from Trindade Island, which was considered extinct until 1998, when it was rediscovered in the higher areas of the island. The regeneration of the species was attributed to the soil seed bank. This communication reports new records of P. trinitatis close to sea level on Trindade Island, at lower altitude than previously documented. The new records suggest that P. trinitatis is recolonizing the island, but leaves doubts whether sampling gaps in the past have led to the non-detection of the plant in its vegetative form in these locations, emphasizing that other species considered extinct may share this issue. Regardless of recolonization or sampling gaps, the eradication of invasive herbivores is necessary as a strategy to protect local flora and native vegetation. Understanding the population status can help in making decisions about the need of environmental management and species population recovery.","PeriodicalId":6902,"journal":{"name":"Acta Botanica Brasilica","volume":"15 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81165554","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