Data/hora: 06/06/2024 08:33:37

Provedor de dados: 	58	
País: 	Brazil	
Título: 	Bacterial diversity in relatively pristine and anthropogenically-influenced mangrove ecosystems (Goa, India)	
Autores: 	Fernandes,Sheryl Oliveira; Kirchman,David L.; Michotey,Valérie D.; Bonin,Patricia C.; LokaBharathi,P.A.	
Data: 	2014-12-01	
Ano: 	2014	
Palavras-chave: 	Bacteria; Denitrification; Diversity; Mangroves; Sediments.	
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 &amp;gt; 97% similarity. At Divar, the Gammaproteobacteria were ~ 2x higher (17%) than at Tuvem. A more diverse bacterial community with &amp;gt; 3300 phylotypes and &amp;gt; 2000 OTUs mostly belonging to Gammaproteobacteria and a significantly higher DNT (n = 9, p &lt; 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.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000400006	
Editor: 	Sociedade Brasileira de Microbiologia	
Relação: 	10.1590/S1517-83822014000400006	
Formato: 	text/html	
Fonte: 	Brazilian Journal of Microbiology  v.45 n.4 2014	
Fonte: 	info:eu-repo/semantics/openAccess