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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
12/12/2017 |
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Data da última atualização: |
09/03/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GENUÁRIO, D. B.; VAZ, M. G. M. V.; MELO, I. S. de. |
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Afiliação: |
DIEGO BONALDO GENUARIO; MARCELO GOMES MARÇAL VIEIRA VAZ, UFV; ITAMAR SOARES DE MELO, CNPMA. |
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Título: |
Phylogenetic insights into the diversity of homocytous cyanobacteria from Amazonian rivers. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Molecular Phylogenetics and Evolution, v. 116, p. 120-135, 2017. |
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DOI: |
10.1016/j.ympev.2017.08.010 |
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Idioma: |
Inglês |
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Conteúdo: |
The Amazon Rainforest holds great tropical biodiversity, mainly because of its favourable climatic conditions. The high temperatures, luminosity and humidity coupled with the nutritional simplicity of cyanobacteria allow undiscovered diversity to ?ourish within this group of microorganisms. Some e?orts to reveal this diversity have been attempted; however, most were focused on the microscopic observation of environmental samples without any genetic information. Very few studies focusing on morphological, ecological and molecular criteria have been conducted, and none have been devoted to homocytous cyanobacteria forms in Amazonia region. Therefore, the genetic relationships amongst strains retrieved from this ecosystem with regard to other environments from Brazil and the world have not been tested and,consequently,the Amazonian strains would naturally be assumed as noveltoscience. To examine these relationships, cultured homocytous cyanobacteria isolated from two Amazonian rivers (Amazonas and Solimões) were evaluated using a phylogenetic perspective, considering the 16S rRNA gene sequence. A total of eleven homocytous cyanobacterial strains were isolated. Morphologically, they were identi?ed as Pseudanabaena, Leptolyngbya, Planktothrix and Phormidium, but genetically they were included in the typical clusters of Planktothrix, Pseudanabaena, Cephalothrix, Pantanalinema and Alkalinema. These three latter genera have been detected in other Brazilian ecosystems only (Pantanal, Atlantic Rainforest and Pampa), while those remaining have been extensively found in many parts of the world. The data provided here indicate that Amazonian rivers support a homocytous cyanobacterial diversity previously reported from other geographical and ecological environments. MenosThe Amazon Rainforest holds great tropical biodiversity, mainly because of its favourable climatic conditions. The high temperatures, luminosity and humidity coupled with the nutritional simplicity of cyanobacteria allow undiscovered diversity to ?ourish within this group of microorganisms. Some e?orts to reveal this diversity have been attempted; however, most were focused on the microscopic observation of environmental samples without any genetic information. Very few studies focusing on morphological, ecological and molecular criteria have been conducted, and none have been devoted to homocytous cyanobacteria forms in Amazonia region. Therefore, the genetic relationships amongst strains retrieved from this ecosystem with regard to other environments from Brazil and the world have not been tested and,consequently,the Amazonian strains would naturally be assumed as noveltoscience. To examine these relationships, cultured homocytous cyanobacteria isolated from two Amazonian rivers (Amazonas and Solimões) were evaluated using a phylogenetic perspective, considering the 16S rRNA gene sequence. A total of eleven homocytous cyanobacterial strains were isolated. Morphologically, they were identi?ed as Pseudanabaena, Leptolyngbya, Planktothrix and Phormidium, but genetically they were included in the typical clusters of Planktothrix, Pseudanabaena, Cephalothrix, Pantanalinema and Alkalinema. These three latter genera have been detected in other Brazilian ecosystems only (Pantanal,... Mostrar Tudo |
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Palavras-Chave: |
Alkalinema; Cephalothrix; Pantanalinema. |
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Thesagro: |
Bactéria; Filogenia; Rio. |
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Thesaurus Nal: |
Amazonia; Cyanobacteria; Planktothrix; Pseudanabaena. |
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Categoria do assunto: |
S Ciências Biológicas |
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Marc: |
LEADER 02573naa a2200277 a 4500
001 2082289
005 2018-03-09
008 2017 bl uuuu u00u1 u #d
024 7 $a10.1016/j.ympev.2017.08.010$2DOI
100 1 $aGENUÁRIO, D. B.
245 $aPhylogenetic insights into the diversity of homocytous cyanobacteria from Amazonian rivers.$h[electronic resource]
260 $c2017
520 $aThe Amazon Rainforest holds great tropical biodiversity, mainly because of its favourable climatic conditions. The high temperatures, luminosity and humidity coupled with the nutritional simplicity of cyanobacteria allow undiscovered diversity to ?ourish within this group of microorganisms. Some e?orts to reveal this diversity have been attempted; however, most were focused on the microscopic observation of environmental samples without any genetic information. Very few studies focusing on morphological, ecological and molecular criteria have been conducted, and none have been devoted to homocytous cyanobacteria forms in Amazonia region. Therefore, the genetic relationships amongst strains retrieved from this ecosystem with regard to other environments from Brazil and the world have not been tested and,consequently,the Amazonian strains would naturally be assumed as noveltoscience. To examine these relationships, cultured homocytous cyanobacteria isolated from two Amazonian rivers (Amazonas and Solimões) were evaluated using a phylogenetic perspective, considering the 16S rRNA gene sequence. A total of eleven homocytous cyanobacterial strains were isolated. Morphologically, they were identi?ed as Pseudanabaena, Leptolyngbya, Planktothrix and Phormidium, but genetically they were included in the typical clusters of Planktothrix, Pseudanabaena, Cephalothrix, Pantanalinema and Alkalinema. These three latter genera have been detected in other Brazilian ecosystems only (Pantanal, Atlantic Rainforest and Pampa), while those remaining have been extensively found in many parts of the world. The data provided here indicate that Amazonian rivers support a homocytous cyanobacterial diversity previously reported from other geographical and ecological environments.
650 $aAmazonia
650 $aCyanobacteria
650 $aPlanktothrix
650 $aPseudanabaena
650 $aBactéria
650 $aFilogenia
650 $aRio
653 $aAlkalinema
653 $aCephalothrix
653 $aPantanalinema
700 1 $aVAZ, M. G. M. V.
700 1 $aMELO, I. S. de
773 $tMolecular Phylogenetics and Evolution$gv. 116, p. 120-135, 2017.
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Embrapa Meio Ambiente (CNPMA) |
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| 1. |  | STACECHEN, C.; MORAIS, R. S. de; NIVA, C. C. Avaliação do efeito do agrotóxico Vertimec® 18EC sobre a reprodução de enquitreídeos em solo artificial tropical. In: EVENTO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA FLORESTAS, 12., 2013, Colombo. Anais. Colombo: Embrapa Florestas, 2013. (Embrapa Florestas. Documentos, 253). Editores técnicos: Marcílio José Thomazini, Elenice Fritzsons, Patrícia Raquel Silva, Guilherme Schnell e Schuhli, Denise Jeton Cardoso, Luziane Franciscon. EVINCI. Resumos.| Biblioteca(s): Embrapa Florestas. |
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