Bacterial and archaeal communities in deep sea waters near the Ninetyeast Ridge in Indian Ocean

Gao, Ping; Qu, Lingyun; Du, Guangxun; Zhang, Xuelei; Yang, Guang

doi:10.1007/s00343-020-9343-y

Cited by 12 publications

(2 citation statements)

References 52 publications

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“…Biogeochemical characteristics, including temperature, nutrients, salinity, and DO, are the important regulators of bacterial community composition in many marine ecosystems (Biddanda et al, 2001 ; Naqvi, 2006 ; Paulmier and Ruiz-Pino, 2009 ; Guo et al, 2018 ; Gao et al, 2020 ). The temperature of surface water in the Indian Ocean is closely related to the seasonal variation of the monsoon.…”

Section: Discussionmentioning

confidence: 99%

Influences of Seasonal Monsoons on the Taxonomic Composition and Diversity of Bacterial Community in the Eastern Tropical Indian Ocean

Gao

Zhao

et al. 2021

Front. Microbiol.

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The Indian Ocean is characterized by its complex physical systems and strong seasonal monsoons. To better understand effects of seasonal monsoon-driven circulation on the bacterioplanktonic community structure in surface waters and the bacterial distribution response to vertical stratification, patterns of seasonal, and vertical distribution of bacterial communities in the Eastern Tropical Indian Ocean were investigated using 16S rRNA gene profiling. Water samples were collected during the Southwest monsoon (from June to August), the fall inter-monsoon (from October and November) and the Northeast monsoon (from December to January), respectively, onboard during three cruises from July 2016 to January 2018. Surface bacterioplankton communities in these three seasons and in the upper water (3–300 m with six depths) during the Northeast monsoon contained a diverse group of taxa, mainly Proteobacteria, Cyanobacteria, Actinobacteria, Bacteroidetes, and Chloroflexi. Redundancy discriminant analysis (RDA) uncovered that temperature, salinity, and dissolved oxygen (DO) were crucial environmental parameters that affected the structure of bacterial community in overall surface samples. However, significant differences in the composition of the bacterial community are likely due to changes in concentrations of salinity during the fall inter-monsoon, while phosphate for both the Southwest monsoon and the Northeast monsoon. Pearson's analysis revealed that the seasonal variation rather than the vertical variation of environmental factors had a more significant impact on the composition of bacterial community. In addition, a clear seasonal pattern of bacterial co-occurrence showed that inter-taxa associations during the fall inter-monsoon were closer than during the Northeast monsoon and the Southwest monsoon. Overall, our results implied clear differences in the composition of bacterial community, with more pronounced seasonal variation compared to the vertical variation in response to environmental changes.

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Section: Discussionmentioning

confidence: 99%

Influences of Seasonal Monsoons on the Taxonomic Composition and Diversity of Bacterial Community in the Eastern Tropical Indian Ocean

Gao

Zhao

et al. 2021

Front. Microbiol.

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“…Compared with other sites, N36 and N31 had a higher abundance of Bacteroidota (10.67%) (Figure 2). Bacteroidota also showed high abundance in studies of the Arctic and deep waters of the Indian Ocean (Gao et al, 2021).…”

Section: Benthic Bacterial Community Composition and Distribution Pat...mentioning

confidence: 94%

Bacterial Communities and Culturable Petroleum Hydrocarbon Degrading Bacteria in Marine Sediments in the Northeastern South China Sea

Wang

Qiao

Wei

et al. 2022

Front. Environ. Sci.

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Marine oil spill pollution was one of the factors affecting the marine ecology of the northeastern South China Sea (nSCS). The submarine oil produced after the oil spill had a long-term impact on the microbial community in the sediment. In this study, 16S rRNA genes high-throughput sequencing and quantitative PCR were used to study the composition and distribution of bacterial communities in deep-sea sediments; meanwhile, petroleum hydrocarbon degrading bacteria were isolated, of which activity were detected. Proteobacteria and Planctomycetota were the main bacterial phyla found in the samples studied in this study. 29 bacterial strains capable of degrading petroleum hydrocarbons were isolated from S02 and S39 sediment samples, belonging to genus Stenotrophomonas, Pseudidiomarina, Sulfitobacter, Pseudomonas, Halomonas and so on. Strains from Stenotrophomonas degraded petroleum hydrocarbons efficiently. This research provided new insights into distribution pattern of benthic microbial community in the nSCS, and validated the degradation potential of petroleum hydrocarbons by indigenous bacteria.

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Microbial Diversity in the Indian Ocean Sediments: An Insight into the Distribution and Associated Factors

Ambati

Kumar

2022

Curr Microbiol

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Bacterial and archaeal communities in deep sea waters near the Ninetyeast Ridge in Indian Ocean

Cited by 12 publications

References 52 publications

Influences of Seasonal Monsoons on the Taxonomic Composition and Diversity of Bacterial Community in the Eastern Tropical Indian Ocean

Influences of Seasonal Monsoons on the Taxonomic Composition and Diversity of Bacterial Community in the Eastern Tropical Indian Ocean

Bacterial Communities and Culturable Petroleum Hydrocarbon Degrading Bacteria in Marine Sediments in the Northeastern South China Sea

Microbial Diversity in the Indian Ocean Sediments: An Insight into the Distribution and Associated Factors

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