Integrated analysis of bacterial and microeukaryotic communities from differentially active mud volcanoes in the Gulf of Cadiz

被引：22
|
作者：
Coelho, Francisco J. R. C. [1 ,2 ]
Louvado, Antonio [1 ,2 ]
Domingues, Patricia M. [1 ,2 ,3 ,4 ]
Cleary, Daniel F. R. [1 ,2 ]
Ferreira, Marina [1 ,2 ]
Almeida, Adelaide [1 ,2 ]
Cunha, Marina R. [1 ,2 ]
Cunha, Angela [1 ,2 ]
Gomes, Newton C. M. [1 ,2 ]
机构：
[1] Univ Aveiro, Dept Biol, Campus Santiago, P-3810193 Aveiro, Portugal
[2] Univ Aveiro, CESAM, Campus Santiago, P-3810193 Aveiro, Portugal
[3] Univ Aveiro, Dept Chem, Campus Santiago, P-3810193 Aveiro, Portugal
[4] Univ Aveiro, CICECO, Campus Santiago, P-3810193 Aveiro, Portugal
来源：
SCIENTIFIC REPORTS | 2016年 / 6卷
关键词：
DEEP-SEA SEDIMENTS; RIBOSOMAL-RNA SEQUENCES; PROKARYOTIC COMMUNITIES; MICROBIAL COMMUNITIES; EUKARYOTIC DIVERSITY; MOLECULAR EVIDENCE; SMALL-SUBUNIT; METHANE; ABUNDANCE; BIODIVERSITY;
D O I：
10.1038/srep35272
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
The present study assesses the diversity and composition of sediment bacterial and microeukaryotic communities from deep-sea mud volcanoes (MVs) associated with strike-slip faults in the South-West Iberian Margin (SWIM). We used a 16S/18S rRNA gene based pyrosequencing approach to characterize and correlate the sediment bacterial and microeukaryotic communities from MVs with differing gas seep regimes and from an additional site with no apparent seeping activity. In general, our results showed significant compositional changes of bacterial and microeukaryotic communities in sampling sites with different seepage regimes. Sediment bacterial communities were enriched with Methylococcales (putative methanotrophs) but had lower abundances of Rhodospirillales, Nitrospirales and SAR202 in the more active MVs. Within microeukaryotic communities, members of the Lobosa (lobose amoebae) were enriched in more active MVs. We also showed a strong correlation between Methylococcales populations and lobose amoeba in active MVs. This study provides baseline information on the diversity and composition of bacterial and microeukaryotic communities in deep-sea MVs associated with strike-slip faults.
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页数：10
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