scholarly journals Methane-metabolizing microbial communities in sediments of the Haima cold seep area, northwest slope of the South China Sea

2017 ◽  
Author(s):  
Mingyang Niu ◽  
Xibei Fan ◽  
Guangchao Zhuang ◽  
Qianyong Liang ◽  
Fengping Wang
Keyword(s):  
South China Sea ◽  
Microbial Communities ◽  
South China ◽  
The South China Sea ◽  
Cold Seep ◽  
The South ◽  
China Sea

scholarly journals Energy Gradients Structure Microbial Communities Across Sediment Horizons in Deep Marine Sediments of the South China Sea

2018 ◽  
Vol 9 ◽  
Author(s):  
Michael F. Graw ◽  
Grace D'Angelo ◽  
Matthew Borchers ◽  
Andrew R. Thurber ◽  
Joel E. Johnson ◽  
...  
Keyword(s):  
South China Sea ◽  
Microbial Communities ◽  
Marine Sediments ◽  
South China ◽  
The South China Sea ◽  
The South ◽  
China Sea

scholarly journals Characterization of particle-associated and free-living bacterial and archaeal communities along the water columns of the South China Sea

2020 ◽  
Author(s):  
Jiangtao Li ◽  
Lingyuan Gu ◽  
Shijie Bai ◽  
Jie Wang ◽  
Lei Su ◽  
...  
Keyword(s):  
South China Sea ◽  
Microbial Communities ◽  
South China ◽  
Deep Ocean ◽  
Archaeal Community ◽  
The South China Sea ◽  
The South ◽  
Free Living ◽  
China Sea ◽  
Archaeal Communities

Abstract. There is a growing recognition of the role of particle-attached (PA) and free-living (FL) microorganisms in marine carbon cycle. However, current understanding of PA and FL microbial communities is largely on those in the upper photic zone, and relatively fewer studies have focused on microbial communities of the deep ocean. Moreover, archaeal populations receive even less attention. In this study, we determined bacterial and archaeal community structures of both the PA and FL assemblages at different depths, from the surface to the bathypelagic zone along two water column profiles in the South China Sea. Our results suggest that environmental parameters including depth, seawater age, salinity, POC, DOC, DO and silicate play a role in structuring these microbial communities. Generally, the PA microbial communities have relatively low abundance and diversity compared with the FL microbial communities at most depths. Further microbial community analysis revealed that PA and FL fractions generally accommodate significantly divergent microbial compositions at each depth. The PA bacterial communities mainly comprise members of Actinobacteria and γ-Proteobacteria, together with some from Bacteroidetes, Planctomycetes and δ-Proteobacteria, while the FL bacterial lineages are mostly distributed within α-, γ-Proteobacteria, Actinobacteria and Bacteroidetes, along with certain members from β-, δ-Proteobacteria, Planctomycetes and Firmicutes. Moreover, there is an obvious shifting in the dominant PA and FL bacterial compositions along the depth profiles from the surface to the bathypelagic deep. By contrast, both PA and FL archaeal communities dominantly consist of Marine Group II (MGII) and Marine Group I (MGI), together with variable minor Marine Group III (MGIII), Methanosarcinales, Marine Benthic Group A (MBG-A) and Woesearchaeota. However, the pronounced distinction of archaeal community compositions between PA and FL fractions are observed at finer taxonomic level. A high proportion overlap of microbial compositions between PA and FL fractions implies that most microorganisms are potentially generalists with PA and FL dual lifestyle for versatile metabolic flexibility. In addition, microbial distribution along the depth profile indicates a potential vertical connectivity between the surface-specific microbial lineages and those in the deep ocean, likely through microbial attachment to sinking particles.

scholarly journals In situ Raman Quantitative Detection of the Cold Seep Vents and Fluids in the Chemosynthetic Communities in the South China Sea

2018 ◽  
Vol 19 (7) ◽  
pp. 2049-2061 ◽  
Author(s):  
Zengfeng Du ◽  
Xin Zhang ◽  
Zhendong Luan ◽  
Minxiao Wang ◽  
Shichuan Xi ◽  
...  
Keyword(s):  
South China Sea ◽  
South China ◽  
The South China Sea ◽  
Cold Seep ◽  
Quantitative Detection ◽  
The South ◽  
China Sea ◽  
In Situ Raman

Seasonal and spatial diversity of microbial communities in marine sediments of the South China Sea

2011 ◽  
Vol 100 (3) ◽  
pp. 317-331 ◽  
Author(s):  
Jikun Du ◽  
Kai Xiao ◽  
Yali Huang ◽  
Huixian Li ◽  
Hongming Tan ◽  
...  
Keyword(s):  
South China Sea ◽  
Microbial Communities ◽  
Marine Sediments ◽  
South China ◽  
Spatial Diversity ◽  
The South China Sea ◽  
The South ◽  
China Sea

Ecological characterization of cold-seep epifauna in the South China Sea

2020 ◽  
Vol 163 ◽  
pp. 103361
Author(s):  
Yu Zhao ◽  
Ting Xu ◽  
Yu Sheung Law ◽  
Dong Feng ◽  
Niu Li ◽  
...  
Keyword(s):  
South China Sea ◽  
South China ◽  
The South China Sea ◽  
Cold Seep ◽  
The South ◽  
China Sea

Gametogenesis and reproductive traits of the cold-seep mussel Gigantidas platifrons in the South China Sea

2020 ◽  
Vol 38 (4) ◽  
pp. 1304-1318
Author(s):  
Zhaoshan Zhong ◽  
Minxiao Wang ◽  
Hao Chen ◽  
Ping Zheng ◽  
Chaolun Li
Keyword(s):  
South China Sea ◽  
South China ◽  
Reproductive Traits ◽  
The South China Sea ◽  
Cold Seep ◽  
The South ◽  
China Sea

scholarly journals Nitrincola iocasae sp. nov., a bacterium isolated from sediment collected at a cold seep field in the South China Sea

2020 ◽  
Vol 70 (9) ◽  
pp. 4897-4902 ◽  
Author(s):  
Huan Zhang ◽  
Hao Wang ◽  
Hao Chen ◽  
Qinglei Sun ◽  
Zhaoshan Zhong ◽  
...  
Keyword(s):  
South China Sea ◽  
South China ◽  
Type Species ◽  
The South China Sea ◽  
Cold Seep ◽  
The South ◽  
Content Type ◽  
China Sea ◽  
Link Type ◽  
A Genome

A novel bacterium, designated strain KXZD1103T, was isolated from sediment collected at a cold seep field of the Formosa Ridge in the South China Sea. Cells were Gram-stain-negative, facultatively anaerobic, motile, oxidase- and catalase-positive, and grew optimally at 28 °C, pH 6.0–pH 7.0 and in the presence of 1–3 % (w/v) NaCl. The major cellular fatty acids were summed feature 8 (C18 : 1  ω7c/C18 : 1  ω6c), summed feature 3 (C16 : 1  ω7c/C16 : 1  ω6c) and C16 : 0. The major respiratory ubiquinone was Q-8. The predominant polar lipids were diphosphatidylglycerol, phosphatidylethanolamine and phosphatidylglycerol. Analysis of 16S rRNA gene sequences revealed that strain KXZD1103T grouped with members of the genus Nitrincola , with Nitrincola lacisaponensis 4CAT (98.1 % sequence similarity) and Nitrincola schmidtii R4-8T (97.7 %) as its closest neighbours. Genome sequencing revealed a genome size of 4.17 Mb and a DNA G+C content of 50.1 %. Genomic average nucleotide identity values for strain KXZD1103T with the type strains within the genus Nitrincola ranged from 71.0 to 75.7 %, while the in silico DNA–DNA hybridization values for strain KXZD1103T with these strains ranged from 16.1 to 21.6 %. On the basis of the results of phylogenetic, phenotypic and chemotaxonomic analyses, strain KXZD1103T is considered to represent a novel species of the genus Nitrincola , for which the name Nitrincola iocasae sp. nov. is proposed. The type strain is KXZD1103T (=KCTC 72678T=MCCC 1K04283T).

Sign in / Sign up

Export Citation Format

Share Document