Bacterial diversity in relatively pristine and anthropogenically-influenced mangrove ecosystems (Goa, India)

Brazilian Journal of Microbiology : [publication of the Brazilian Society for Microbiology]
Sheryl Oliveira FernandesP A LokaBharathi

Abstract

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 ~ 2× 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 Gammaprote...Continue Reading

Citations

Jan 31, 2019·Frontiers in Microbiology·Cécile CapdevilleJoséphine Leflaive
Feb 25, 2019·Environmental Science and Pollution Research International·Prantick PatraParthasarathi Chakraborty
Mar 10, 2018·MicrobiologyOpen·Songlin LiuStacey M Trevathan-Tackett
Apr 25, 2018·Microbial Ecology·Marta A MoitinhoRodrigo G Taketani
Dec 13, 2017·Environmental Science and Pollution Research International·Anwesha Ghosh, Punyasloke Bhadury

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