Spatial patterns of benthic bacterial communities in a large lake
Liu, LX; Xu, M; Qiu, S; Shen, RC
2015
Source PublicationINTERNATIONAL REVIEW OF HYDROBIOLOGY
ISSN1434-2944
Volume100Issue:03-04Pages:97-105
AbstractTo gain insights into the spatial pattern of microbial communities in Poyang Lake, we collected a total of 42 sediment samples from each of the four major parts of the lake in October 2010. We analyzed the spatial patterns of microbial biomass and microbial community composition using the phospholipid fatty acids (PLFA) method. The mean total microbial biomass was 2.28mg PLFA/kg dry weight (wt) ranging from 0.25 to 6.56mg PLFA/kg dry wt, indicating a high-spatial variation. The coefficients of variations (CVs) of the bacterial and fungal biomasses were 73 and 80%, respectively. In addition, the CVs of biomasses for the seven bacterial groups ranged from 62 to 92%, which included anaerobic bacteria, Gram-positive bacteria (G+), Gram-negative bacteria (G-), aerobic bacteria (AE), actinomycetes (A), sulfate-reducing bacteria (S), and methane-oxidizing bacteria. In our study, the ammonium concentrations both in the water and in the sediment were closely correlated to the total microbial biomass and the biomasses of bacterial groups, while the ratios of fungal to bacterial biomass (F/B) and G-/G+ were correlated with ammonium concentration only in the water. In addition, F/B in the lake sediment was significantly correlated with the nitrogen content and the ratio of organic carbon to total nitrogen contents in the sediment (C/N). Moreover, the ammonium concentrations in the water and in the sediment, water dissolved organic carbon (DOC), sediment nitrogen content, and sediment organic carbon content were strongly linked to the spatial variation of bacterial community composition. Our results show that the C and N availability in the water and in the sediment are key predictors for microbial biomass and microbial community composition in Poyang Lake.
SubtypeJournal
Keywordlake sediment microbial biomass microbial community composition PLFA Poyang Lake
Subject AreaMarine & Freshwater Biology
WOS Subject ExtendedMarine & Freshwater Biology
WOS KeywordSOIL MICROBIAL COMMUNITIES ; FATTY-ACIDS ; TROPHIC STATUS ; POYANG LAKE ; SEDIMENTS ; CARBON ; BIOMASS ; CALIFORNIA ; ECOSYSTEM ; CHINA
Indexed BySCI
Language英语
WOS IDWOS:000358506200001
PublisherWILEY-BLACKWELL
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/44383
Collection生态系统网络观测与模拟院重点实验室_生态网络实验室
Recommended Citation
GB/T 7714
Liu, LX,Xu, M,Qiu, S,et al. Spatial patterns of benthic bacterial communities in a large lake[J]. INTERNATIONAL REVIEW OF HYDROBIOLOGY,2015,100(03-04):97-105.
APA Liu, LX,Xu, M,Qiu, S,&Shen, RC.(2015).Spatial patterns of benthic bacterial communities in a large lake.INTERNATIONAL REVIEW OF HYDROBIOLOGY,100(03-04),97-105.
MLA Liu, LX,et al."Spatial patterns of benthic bacterial communities in a large lake".INTERNATIONAL REVIEW OF HYDROBIOLOGY 100.03-04(2015):97-105.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Liu, LX]'s Articles
[Xu, M]'s Articles
[Qiu, S]'s Articles
Baidu academic
Similar articles in Baidu academic
[Liu, LX]'s Articles
[Xu, M]'s Articles
[Qiu, S]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Liu, LX]'s Articles
[Xu, M]'s Articles
[Qiu, S]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.