| Registro completo |
| Provedor de dados: |
BJM
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| País: |
Brazil
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| Título: |
Bacterial diversity in relatively pristine and anthropogenically-influenced mangrove ecosystems (Goa, India)
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| Autores: |
Fernandes,Sheryl Oliveira
Kirchman,David L.
Michotey,Valérie D.
Bonin,Patricia C.
LokaBharathi,P.A.
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| Data: |
2014-12-01
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| Ano: |
2014
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| Palavras-chave: |
Bacteria
Denitrification
Diversity
Mangroves
Sediments
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| Resumo: |
To appreciate differences in benthic bacterial community composition at the relatively pristine Tuvem and the anthropogenically-influenced Divar mangrove ecosystems in Goa, India, parallel tag sequencing of the V6 region of 16S rDNA was carried out. We hypothesize that availability of extraneously-derived anthropogenic substrates could act as a stimulatant but not a deterrent to promote higher bacterial diversity at Divar. Our observations revealed that the phylum Proteobacteria was dominant at both locations comprising 43-46% of total tags. The Tuvem ecosystem was characterized by an abundance of members belonging to the class Deltaproteobacteria (21%), ~ 2100 phylotypes and 1561 operational taxonomic units (OTUs) sharing > 97% similarity. At Divar, the Gammaproteobacteria were ~ 2x higher (17%) than at Tuvem. A more diverse bacterial community with > 3300 phylotypes and > 2000 OTUs mostly belonging to Gammaproteobacteria and a significantly higher DNT (n = 9, p < 0.001, df = 1) were recorded at Divar. These findings suggest that the quantity and quality of pollutants at Divar are perhaps still at a level to maintain high diversity. Using this technique we could show higher diversity at Divar with the possibility of Gammaproteobacteria contributing to modulating excess nitrate.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000400006
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| Editor: |
Sociedade Brasileira de Microbiologia
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| Relação: |
10.1590/S1517-83822014000400006
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| Formato: |
text/html
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| Fonte: |
Brazilian Journal of Microbiology v.45 n.4 2014
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| Direitos: |
info:eu-repo/semantics/openAccess
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