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Little is known about the functional capability of microbial communities in shallow-sea hydrothermal systems (water depth of <200 m). This study analyzed two high-throughput pyrosequencing metagenomic datasets from the vent and the surface water in the shallow-sea hydrothermal system offshore NE Taiwan. This system exhibited distinct geochemical parameters.(More)
BACKGROUND Bacteria play critical roles in marine nutrient cycles by incorporating and redistributing dissolved organic matter (DOM) and inorganic nutrients in the ocean. TonB-dependent transporter (TBDT) proteins allow Gram-negative bacteria to take up scarce resources from nutrient-limiting environments as well as siderophores, heme, vitamin B12, and(More)
Strain JLT2015T was isolated from surface seawater of the Southeastern Pacific. The strain was Gram-negative, aerobic, motile by gliding, and rod shaped. The dominant fatty acids were C18:1ω7c, C16:0, and C16:1ω7c. The major respiratory ubiquinone was Q-10, and the predominant polyamine pattern was spermidine. The components of the polar lipid profile were(More)
A Gram-stain negative, oval-shaped, aerobic, catalase and oxidase-positive bacterium, designated JLT2014T, was isolated from a deep-seawater sample (obtained at a 2,000 m depth) of the Southeastern Pacific Ocean. The dominant fatty acids were identified as C18:1ω7c/C18:1ω6c, C16:0 and C10:0 3-OH, which altogether represented 60.1 % of the total. The(More)
A Gram-negative, aerobic, motile by single polar flagellum, short rod-shaped bacterium was isolated from a deep-seawater sample of the Southeastern Pacific Ocean. Growth was found to occur at 10–40 °C, at pH 4.0–10.0 and in the presence of 0–9.0 % (w/v) NaCl. The phylogenetic tree based on 16S rRNA gene sequences showed that strain JLT2013T fell within a(More)
We assessed the vertical variation of bacterial abundance, diversity and community composition in deep, high-altitude (4730 m above sea level) Lake Nam Co. The bacterial abundance reduced with increasing depth, while bacterial diversity increased in the deeper bottom water. Pyrosequencing revealed that the bacterial community in the lake showed a pronounced(More)
Roseobacter clade bacteria are ubiquitous in marine environments and now thought to be significant contributors to carbon and sulfur cycling. However, only a few strains of roseobacters have been isolated from the deep-sea water column and have not been thoroughly investigated. Here, we present the complete genomes of phylogentically closed related(More)
A Gram-negative, rod-shaped, non-spore-forming aerobic bacterium, motile with a single polar flagellum, strain JLT2005T, was isolated from surface seawater collected from the East China Sea and formed ivory white colonies on a rich organic medium. The strain was positive for catalase, oxidase, and urease. It grew in the presence of 0–12 % (w/v) NaCl(More)
The alphaproteobacterial strain JLT2003T was isolated from surface seawater off the coast of Guishan island, Taiwan. The strain was Gram negative, ovoid or coccoid, non-motile and formed pink colonies on marine agar 2216 (MA; DIFCO) medium. The dominant fatty acids were C18:1ω7c, cyclo C19:0ω8c, and C16:0. The polar lipid profile consisted of(More)
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