Record Details

Phylogenetic diversity of archaeal 16S rRNA and ammonia monooxygenase genes from tropical estuarine sediments on the central west coast of India

DRS at CSIR-National Institute of Oceanography

View Archive Info
 
 
Field Value
 
Title Phylogenetic diversity of archaeal 16S rRNA and ammonia monooxygenase genes from tropical estuarine sediments on the central west coast of India
 
Creator Singh, S.K.
Verma, P.
Ramaiah, N.
Anil, A.C.
Shouche, Y.S.
 
Subject Phylogenetic diversity
estuarine sediments
ammonia monooxygenase
gene clones
 
Description Phylogenetic diversity analyses of archaeal 16S rRNA and ammonia monooxygenase subunit A (AamoA) genes were carried out on sediment samples from the Mandovi and Zuari estuaries, Goa, on the central west coast of India. The 16S rRNA gene libraries revealed quite high diversity of archaea in these sediments compared to previous reports from tropical and temperate estuarine sediments. Uncultured members of Crenarchaeota accounted for approx. 78% of 433 archaeal 16S rRNA gene clones from both of the estuaries. We detected archaeal 16S and amoA gene-related organisms capable of ammonia oxidation. Among Crenarchaeota, marine group I (MG I) was the most predominant. Clones matching the uncultured methanobacteria were predominant among the ribogroups of Euryarchaeota. Our results indicate that archaeal diversity in tropical estuarine sediments is influenced by the mangrove vegetation bordering the lower stretches of both estuaries. Higher diversity may be related to elevated land drainage during the monsoon, particularly in the Mandovi estuary sediments. Also, the diversity of AamoA sequences was higher in Mandovi sediments than those from Zuari and other tropical and/or temperate estuaries studied previously
 
Date 2010-04-16T08:32:00Z
2010-04-16T08:32:00Z
2010
 
Type Journal Article
 
Identifier Research in Microbiology, vol.161(3); 177-186
no
http://drs.nio.org/drs/handle/2264/3586
 
Language en
 
Relation Res_Microbiol_162_292.jpg
 
Rights An edited version of this paper was published by Elsevier. Copyright [2010] Elsevier
 
Publisher Elsevier