Characterization of distinct cyanohabs-related modules in microbial recurrent association network

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Title
Characterization of distinct cyanohabs-related modules in microbial recurrent association network
Author(s)
Seong Jun Chun; Y Cui; C S Lee; A Ra Cho; K Baek; A Choi; So Ra KoHyung Gwan LeeSeungwoo Hwang; Hee-Mock Oh; Chi-Yong Ahn
Bibliographic Citation
Frontiers in Microbiology, vol. 10, pp. 1637-1637
Publication Year
2019
Abstract
To elucidate the interspecies connectivity between cyanobacteria and other bacteria (non-cyanobacteria) during cyanobacterial harmful algal blooms (cyanoHABs), samples were collected from the Nakdong River, Korea, from June 2016 to August 2017, and microbial recurrent association network (MRAN) analysis was performed to overcome the limitations of conventional network analysis. Microcystis blooms were tightly linked with Pseudanabaena in summer and were accompanied by significant changes in the non-cyanobacterial community composition (nCCC) compared to non-bloom period. Riverine bacterial communities could be clearly separated into modules that were involved in the formation, maintenance, and decomposition of cyanoHABs. Roseomonas and Herbaspirillum were directly linked with major cyanobacteria and assigned to connector and module hub in cyanoHABs-related modules, respectively. The functional profiles of the cyanoHABs-related modules suggested that nitrate reduction, aerobic ammonia oxidation, fermentation, and hydrocarbon degradation could be increased during the Microcystis bloom periods. In conclusion, MRAN analysis revealed that specific bacteria belonging to cyanoHABs-related module, including connectors and module hubs, appeared to contribute to the development and collapse of cyanoHABs. Therefore, to understand cyanoHABs, a modular microbial perspective may be more helpful than a single bacterial species perspective.
Keyword
bacterial communityconnectorcyanoHABscyanoHABs-related modulemicrobial recurrent association networkmodule hub
ISSN
1664-302x
Publisher
Frontiers Media Sa
DOI
http://dx.doi.org/10.3389/fmicb.2019.01637
Type
Article
Appears in Collections:
Synthetic Biology and Bioengineering Research Institute > Cell Factory Research Center > 1. Journal Articles
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