Next Article in Journal
Scavenging Capacity of Marine Carotenoids against Reactive Oxygen and Nitrogen Species in a Membrane-Mimicking System
Next Article in Special Issue
Digital Marine Bioprospecting: Mining New Neurotoxin Drug Candidates from the Transcriptomes of Cold-Water Sea Anemones
Previous Article in Journal
Natural Products from Antarctic Colonial Ascidians of the Genera Aplidium and Synoicum: Variability and Defensive Role
Previous Article in Special Issue
Diversity of Nonribosomal Peptide Synthetase Genes in the Microbial Metagenomes of Marine Sponges
Mar. Drugs 2012, 10(8), 1765-1783; doi:10.3390/md10081765
Article

The Transcriptome of Bathymodiolus azoricus Gill Reveals Expression of Genes from Endosymbionts and Free-Living Deep-Sea Bacteria

1,†,* , 1,†
, 1
, 1
 and 2
Received: 17 May 2012; in revised form: 26 July 2012 / Accepted: 31 July 2012 / Published: 20 August 2012
(This article belongs to the Special Issue Metagenomics in Biodiscovery from Oceans)
View Full-Text   |   Download PDF [784 KB, uploaded 20 August 2012]   |   Browse Figures
Abstract: Deep-sea environments are largely unexplored habitats where a surprising number of species may be found in large communities, thriving regardless of the darkness, extreme cold, and high pressure. Their unique geochemical features result in reducing environments rich in methane and sulfides, sustaining complex chemosynthetic ecosystems that represent one of the most surprising findings in oceans in the last 40 years. The deep-sea Lucky Strike hydrothermal vent field, located in the Mid Atlantic Ridge, is home to large vent mussel communities where Bathymodiolus azoricus represents the dominant faunal biomass, owing its survival to symbiotic associations with methylotrophic or methanotrophic and thiotrophic bacteria. The recent transcriptome sequencing and analysis of gill tissues from B. azoricus revealed a number of genes of bacterial origin, hereby analyzed to provide a functional insight into the gill microbial community. The transcripts supported a metabolically active microbiome and a variety of mechanisms and pathways, evidencing also the sulfur and methane metabolisms. Taxonomic affiliation of transcripts and 16S rRNA community profiling revealed a microbial community dominated by thiotrophic and methanotrophic endosymbionts of B. azoricus and the presence of a Sulfurovum-like epsilonbacterium.
Keywords: Bathymodiolus azoricus; mussel; Lucky Strike; Mid Atlantic Ridge; deep-sea; thiotrophic endosymbiont; methanotrophic endosymbiont; Sulfurovum Bathymodiolus azoricus; mussel; Lucky Strike; Mid Atlantic Ridge; deep-sea; thiotrophic endosymbiont; methanotrophic endosymbiont; Sulfurovum
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Export to BibTeX |
EndNote


MDPI and ACS Style

Egas, C.; Pinheiro, M.; Gomes, P.; Barroso, C.; Bettencourt, R. The Transcriptome of Bathymodiolus azoricus Gill Reveals Expression of Genes from Endosymbionts and Free-Living Deep-Sea Bacteria. Mar. Drugs 2012, 10, 1765-1783.

AMA Style

Egas C, Pinheiro M, Gomes P, Barroso C, Bettencourt R. The Transcriptome of Bathymodiolus azoricus Gill Reveals Expression of Genes from Endosymbionts and Free-Living Deep-Sea Bacteria. Marine Drugs. 2012; 10(8):1765-1783.

Chicago/Turabian Style

Egas, Conceição; Pinheiro, Miguel; Gomes, Paula; Barroso, Cristina; Bettencourt, Raul. 2012. "The Transcriptome of Bathymodiolus azoricus Gill Reveals Expression of Genes from Endosymbionts and Free-Living Deep-Sea Bacteria." Mar. Drugs 10, no. 8: 1765-1783.


Mar. Drugs EISSN 1660-3397 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert