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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/41122

Title: Microbial and viral metagenomes of a subtropical freshwater reservoir subject to climatic disturbances
Authors: Sen-Lin Tang
Ching-Hung Tseng
Pei-Wen Chiang
Fuh-Kwo Shiah
Yi-Lung Chen
Jia-Rong Liou
Ting-Chang Hsu
Suhinthan Maheswararajah
Isaam Saeed
Saman Halgamuge
Contributors: 國立臺灣海洋大學:海洋環境化學與生態研究所
Keywords: freshwater reservoir
Date: 2013-07
Issue Date: 2017-02-08T08:35:11Z
Publisher:  The ISME Journal
Abstract: Abstract: Extreme climatic activities, such as typhoons, are widely known to disrupt our natural environment. In particular, studies have revealed that typhoon-induced perturbations can result in several long-term effects on various ecosystems. In this study, we have conducted a 2-year metagenomic survey to investigate the microbial and viral community dynamics associated with environmental changes and seasonal variations in an enclosed freshwater reservoir subject to episodic typhoons. We found that the microbial community structure and the associated metagenomes continuously changed, where microbial richness increased after typhoon events and decreased during winter. Among the environmental factors that influenced changes in the microbial community, precipitation was considered to be the most significant. Similarly, the viral community regularly showed higher relative abundances and diversity during summer in comparison to winter, with major variations happening in several viral families including Siphoviridae, Myoviridae, Podoviridae and Microviridae. Interestingly, we also found that the precipitation level was associated with the terrestrial viral abundance in the reservoir. In contrast to the dynamic microbial community (L-divergence 0.73±0.25), we found that microbial metabolic profiles were relatively less divergent (L-divergence 0.24±0.04) at the finest metabolic resolution. This study provides for the first time a glimpse at the microbial and viral community dynamics of a subtropical freshwater ecosystem, adding a comprehensive set of new knowledge to aquatic environments.
Relation: 7(12)
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/41122
Appears in Collections:[海洋環境與生態研究所] 期刊論文

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