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      O gênero Chara (Charophyceae, Characeae) das Regiões Metropolitanas de Salvador e de Feira de Santana, Bahia, Brasil Translated title: The genus Chara (Charophyceae, Characeae) of Metropolitan regions of Salvador and Feira de Santana, Bahia, Brazil

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          Abstract

          Resumo O levantamento florístico do gênero Chara (Charophyceae, Characeae) nas Regiões Metropolitanas de Salvador e de Feira de Santana, foi realizado em 30 estações de coleta abrangendo seis municípios da RMS e seis da RMFS. Caracteres vegetativos e reprodutivos empregados na taxonomia do grupo foram analisados através de microscopia ótica e através de microscopia eletrônica de varredura dos oósporos. Foram identificadas seis espécies: C. diaphana, C. hydropitys, C. kenoyeri, C. martiana, C. rusbyana e C. zeylanica. Com exceção de C. hydropitys, reencontrada 186 anos após a primeira coleta na Bahia, os demais táxons são adições à ficoflora do estado. O emprego de microscopia eletrônica subsidiou a interpretação da ultraestrutura da parede do oósporo das espécies de Chara e a diferenciação de táxons morfologicamente semelhantes. A ultraestrutura da parede do oósporo de C. martiana é descrita pela primeira vez.

          Translated abstract

          Abstract The floristic survey of the genus Chara (Charophyceae, Characeae) in the Metropolitan Regions of Salvador and Feira de Santana, was carried out in 30 sampling station comprise six counties of RMS and six of RMFS. Vegetative and reproductive characters used in the taxonomy of the group were analyzed by optical microscopy and by scanning electron microscopy of oospores. Six species were identified: C. diaphana, C. hydropitys, C. kenoyeri, C. martiana, C. rusbyana, and C. zeylanica. Except C. hydropitys, rediscovered 186 years after the first citation for Bahia, all other taxa are additions to the phycoflora of Bahia state. The use of electron microscopy subsidized the interpretation of the ultrastructure of the oospore wall of the Chara species, and the differentiation of morphologically similar taxa. The ultrastructure of the wall of the oospore of C. martiana is described for the first time.

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          Most cited references 41

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          Distribution of stream macroalgae in São Paulo State, southeastern Brazil

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            NEW COMBINATIONS AND TAXA IN THE REVISION OF CHARACEAE

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              Phylogeny of North American Tolypella (Charophyceae, Charophyta) based on plastid DNA sequences with a description of Tolypella ramosissima sp. nov.

              Characeae (Charophyceae, Charophyta) contains two tribes with six genera: tribe Chareae with four genera and tribe Nitelleae, which includes Tolypella and Nitella. This paper uses molecular and morphological data to elucidate the phylogeny of Tolypella species in North America. In the most comprehensive taxonomic treatment of Characeae, 16 Tolypella species worldwide were subsumed into two species, T. intricata and T. nidifica, in two sections, Rothia and Tolypella respectively. It was further suggested that Tolypella might be a derived group within Nitella. In this investigation into species diversity and relationships in North American Tolypella, sequence data from the plastid genes atpB, psbC, and rbcL were assembled for a broad range of charophycean and land plant taxa. Molecular data were used in conjunction with morphology to test monophyly of the genus and species within it. Phylogenetic analyses of the sequence data showed that Characeae is monophyletic but that Nitelleae is paraphyletic with Tolypella sister to a monophyletic Nitella + Chareae. The results also supported the monophyly of Tolypella and the sections Rothia and Tolypella. Morphologically defined species were supported as clades with little or no DNA sequence differences. In addition, molecular data revealed several lineages and a new species (T. ramosissima sp. nov.), which suggests greater species diversity in Tolypella than previously recognized.
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                rod
                Rodriguésia
                Rodriguésia
                Instituto de Pesquisas Jardim Botânico do Rio de Janeiro (Rio de Janeiro, RJ, Brazil )
                0370-6583
                2175-7860
                December 2018
                : 69
                : 4
                : 1987-2017
                Affiliations
                Feira de Santana Bahia orgnameUniversidade Estadual de Feira de Santana orgdiv1Depto. Ciências Biológicas orgdiv2Prog. Pós-graduação em Botânica Brazil
                Porto Alegre Rio Grande do Sul orgnameUniversidade Federal do Rio Grande do Sul orgdiv1Depto. Botânica Brazil
                Cascavel Paraná orgnameUniversidade Estadual do Oeste do Paraná orgdiv1Prog. Pós-graduação em Conservação e Manejo de Recursos Naturais Brazil
                Article
                S2175-78602018000401987
                10.1590/2175-7860201869432

                This work is licensed under a Creative Commons Attribution 4.0 International License.

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                Figures: 0, Tables: 0, Equations: 0, References: 54, Pages: 31
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