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| Dang, H.; Li, J.; Zhang, X.; Li, T.; Tian, F.; Jin, W.. |
| The ecological characteristics of the deep-sea amoA-encoding archaea (AEA) are largely unsolved. Our aim was to study the diversity, structure and distribution of the AEA community in the sediments of the tropical West Pacific Continental Margin, to develop a general view of the AEA biogeography in the deep-sea extreme environment. Archaeal amoA clone libraries were constructed. Diverse and novel amoA sequences were identified, with the Bohol Sea, Bashi Strait and Sibuyan Sea harbouring the highest and the Bicol Shelf the lowest AEA diversity. Phylogenetic and statistical analyses illustrate a heterogeneous distribution of the AEA community, probably caused by the differential distribution of the terrestrial or estuarine AEA in the various sampling sites.... |
| Tipo: Text |
Palavras-chave: Ammonia-oxidizing archaea; AmoA-encoding archaea; Biogeography; Deep-sea sediment; Extremophile; Philippine Sea; Volcanic ash; West Pacific Continental Margin. |
| Ano: 2009 |
URL: https://archimer.ifremer.fr/doc/00220/33077/31534.pdf |
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| Qin, Qi-long; Zhao, Dian-li; Wang, Jing; Chen, Xiu-lan; Dang, Hong-yue; Li, Tie-gang; Zhang, Yu-zhong; Gao, Pei-ji. |
| An orange-pigmented, Gram-negative, nonmotile, strictly aerobic and oxidase- and catalase-positive bacterium (SM-A87(T)) was isolated from the deep-sea sediment of the southern Okinawa Trough area. The main fatty acids were i15 : 0, i17 : 0 3OH, i15 : 1 G, i17 : 1 omega 9c, 15 : 0, i15 : 0 3OH and summed feature 3 (comprising i-15 : 0 2OH and/or 16 : 1 omega 7c). MK-6 was the predominant respiratory quinone. DNA G+C content was 35.8 mol%. Flexirubin-type pigments were absent. Phylogenetic analyses based on 16S rRNA gene sequences revealed that strain SM-A87(T) formed a distinct lineage within the family Flavobacteriaceae, with < 93% sequence similarity to the nearest strain of genus Salegentibacter. Moreover, strain SM-A87(T) could be distinguished from... |
| Tipo: Text |
Palavras-chave: A novel genus; Flavobacteriaceae; Southern Okinawa Trough; Deep-sea sediment. |
| Ano: 2007 |
URL: https://archimer.ifremer.fr/doc/00233/34447/32937.pdf |
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