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Seasonal variation of virioplankton in a eutrophic shallow lake
Liu, YM; Zhang, QY; Yuan, XP; Li, ZQ; Gui, JF; Zhang, QY, Chinese Acad Sci, Grad Sch, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2006-05-01
Source PublicationHYDROBIOLOGIA
ISSN0018-8158
Volume560Pages:323-334
AbstractLake Donghu is a typical eutrophic freshwater lake in which high abundance of planktonic viruses was recently revealed. In this study, seasonal variation of planktonic viruses were observed at three different trophic sites, hypertrophic, eutrophic, and mesotrophic regions, and the correlation between their abundances and other aquatic environmental components, such as bacterioplankton, chlorophyll a, burst size, pH, dissolved oxygen, and temperature, was analyzed for the period of an year. Virioplankton abundance detected by transmission electron microscope (TEM) ranged from 5.48 x 10(8) to 2.04 x 10(9) ml(-1) in all the sites throughout the study, and the high abundances and seasonal variations of planktonic viruses were related to the trophic status at the sampled sites in Lake Donghu. Their annual mean abundances were, the highest at the hypertrophic site (1.23x10(9) ml(-1)), medium at the eutrophic site (1.19x10(9) ml(-1)), and the lowest at the mesotrophic site (1.02x10(9) ml(-1)). The VBR (virus-to-bacteria ratio) values were high, ranging from 49 to 56 on average at the three sampled sites. The data suggested that the high viral abundance and high VBR values might be associated with high density of phytoplankton including algae and cyanobacteria in this eutrophic shallow lake, and that planktonic viruses are important members of freshwater ecosystems.; Lake Donghu is a typical eutrophic freshwater lake in which high abundance of planktonic viruses was recently revealed. In this study, seasonal variation of planktonic viruses were observed at three different trophic sites, hypertrophic, eutrophic, and mesotrophic regions, and the correlation between their abundances and other aquatic environmental components, such as bacterioplankton, chlorophyll a, burst size, pH, dissolved oxygen, and temperature, was analyzed for the period of an year. Virioplankton abundance detected by transmission electron microscope (TEM) ranged from 5.48 x 10(8) to 2.04 x 10(9) ml(-1) in all the sites throughout the study, and the high abundances and seasonal variations of planktonic viruses were related to the trophic status at the sampled sites in Lake Donghu. Their annual mean abundances were, the highest at the hypertrophic site (1.23x10(9) ml(-1)), medium at the eutrophic site (1.19x10(9) ml(-1)), and the lowest at the mesotrophic site (1.02x10(9) ml(-1)). The VBR (virus-to-bacteria ratio) values were high, ranging from 49 to 56 on average at the three sampled sites. The data suggested that the high viral abundance and high VBR values might be associated with high density of phytoplankton including algae and cyanobacteria in this eutrophic shallow lake, and that planktonic viruses are important members of freshwater ecosystems.
SubtypeArticle
KeywordVirioplankton Bacterioplankton Seasonal Variation Shallow Lake Eutrophication
DepartmentChinese Acad Sci, Grad Sch, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
Subject AreaMarine & Freshwater Biology
DOI10.1007/s10750-005-1280-4
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS Research AreaMarine & Freshwater Biology
WOS SubjectMarine & Freshwater Biology
WOS IDWOS:000236092500024
WOS KeywordNORTHERN ADRIATIC SEA ; MICROBIAL COMMUNITY ; MARINE-ENVIRONMENT ; AQUATIC SYSTEMS ; VIRAL ABUNDANCE ; DISSOLVED DNA ; VIRUSES ; DYNAMICS ; BACTERIA ; BACTERIOPLANKTON
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Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/9010
Collection期刊论文
Corresponding AuthorZhang, QY, Chinese Acad Sci, Grad Sch, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
AffiliationChinese Acad Sci, Grad Sch, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Liu, YM,Zhang, QY,Yuan, XP,et al. Seasonal variation of virioplankton in a eutrophic shallow lake[J]. HYDROBIOLOGIA,2006,560:323-334.
APA Liu, YM,Zhang, QY,Yuan, XP,Li, ZQ,Gui, JF,&Zhang, QY, Chinese Acad Sci, Grad Sch, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.(2006).Seasonal variation of virioplankton in a eutrophic shallow lake.HYDROBIOLOGIA,560,323-334.
MLA Liu, YM,et al."Seasonal variation of virioplankton in a eutrophic shallow lake".HYDROBIOLOGIA 560(2006):323-334.
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