Effects of viruses on bacterial functions under contrasting nutritional conditions for four species of bacteria isolated from Hong Kong waters
Liu, Hao1; Yuan, Xiangcheng1; Xu, Jie1; Harrison, Paul J.1; He, Lei1; Yin, Kedong1; yinkd@mail.sysu.edu.cn
2015
发表期刊SCIENTIFIC REPORTS
卷号5页码:14217-
摘要Free living viruses are ubiquitous in marine waters and concentrations are usually several times higher than the bacterial abundance. These viruses are capable of lysing host bacteria and therefore, play an important role in the microbial loop in oligotrophic waters. However, few studies have been conducted to compare the role of viruses in regulating bacterial abundance and heterotrophic activities between natural oligotrophic waters and anthropogenic influenced eutrophic waters. In this study, we examined viral effects on bacterial functions of four single bacterial species incubated with natural viral assemblages in seawater samples from eutrophic and oligotrophic waters. The viral-lysis of bacteria was significantly higher in eutrophic than oligotrophic waters. This suggests that viruses were capable of controlling bacterial abundance, respiration and production in the eutrophic waters. Cellular bacterial respiration and production was higher with viruses than without viruses, which was more evident in the oligotrophic waters. These results indicate that viruses can slow down bacterial consumption of oxygen and reduce bacteria-induced eutrophication effects in anthropogenic eutrophic waters, but switch to the role of sustaining the bacterial population when nutrients are limiting. There were bacterial species differences in resisting viral attack, which can influence the dominance and biodiversity of bacterial species in coastal waters.
部门归属LMB
学科领域Science & Technology - Other Topics
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文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/14767
专题中科院海洋生物资源可持续利用重点实验室
通讯作者yinkd@mail.sysu.edu.cn
作者单位1.[Liu, Hao
2.He, Lei
3.Yin, Kedong] Sun Yat Sen Univ, Sch Marine Sci, Guangzhou 510006, Guangdong, Peoples R China
4.[Liu, Hao
5.He, Lei
6.Yin, Kedong] Key Lab Marine Resources & Coastal Engn Guangdong, Guangzhou 510006, Guangdong, Peoples R China
7.[Yuan, Xiangcheng] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol, Guangzhou 510301, Guangdong, Peoples R China
8.[Xu, Jie] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China
9.[Harrison, Paul J.] Univ British Columbia, Dept Earth & Ocean Sci, Vancouver, BC V5Z 1M9, Canada
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Liu, Hao,Yuan, Xiangcheng,Xu, Jie,et al. Effects of viruses on bacterial functions under contrasting nutritional conditions for four species of bacteria isolated from Hong Kong waters[J]. SCIENTIFIC REPORTS,2015,5:14217-.
APA Liu, Hao.,Yuan, Xiangcheng.,Xu, Jie.,Harrison, Paul J..,He, Lei.,...&yinkd@mail.sysu.edu.cn.(2015).Effects of viruses on bacterial functions under contrasting nutritional conditions for four species of bacteria isolated from Hong Kong waters.SCIENTIFIC REPORTS,5,14217-.
MLA Liu, Hao,et al."Effects of viruses on bacterial functions under contrasting nutritional conditions for four species of bacteria isolated from Hong Kong waters".SCIENTIFIC REPORTS 5(2015):14217-.
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