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Variations in culturable bacterial communities and biochemical properties in the foreland of the retreating Tianshan No. 1 glacier
Wu, Xiukun1,2; Zhang, Gaosen1,2; Zhang, Wei1,2; Liu, Guangxiu1,2; Chen, Tuo2,3; Wang, Yun1,2; Long, Haozhi1; Tai, Xisheng1; Zhang, Baogui1,2; Li, Zhongqin3
刊名BRAZILIAN JOURNAL OF MICROBIOLOGY
2018-07-01
卷号49期号:3页码:443-451
关键词Tianshan No. 1 glacier Foreland Culturable bacteria Soil biochemical characteristics
ISSN号1517-8382
DOI10.1016/j.bjm.2018.01.001
通讯作者Liu, Guangxiu(liugx@lzb.ac.cn)
英文摘要As a glacier retreats, barren areas are exposed, and these barren areas are ideal sites to study microbial succession. In this study, we characterized the soil culturable bacterial communities and biochemical parameters of early successional soils from a receding glacier in the Tianshan Mountains. The total number of culturable bacteria ranged from 2.19 x 10(5) to 1.30 x 10(6) CFU g(-1) dw and from 9.33 x 10(5) to 2.53 x 10(6) CFU g(-1) dw at 4 degrees C and 25 degrees C, respectively. The number of culturable bacteria in the soil increased at 25 degrees C but decreased at 4 degrees C along the chronosequence. The total organic carbon, total nitrogen content, and enzymatic activity were relatively low in the glacier foreland. The number of culturable bacteria isolated at 25 degrees C was significantly positively correlated with the TOC and TN as well as the soil urease, protease, polyphenoloxidase, sucrase, catalase, and dehydrogenase activities. We obtained 358 isolates from the glacier foreland soils that clustered into 35 groups using amplified ribosomal DNA restriction analysis. These groups are affiliated with 20 genera that belong to six taxa, namely, Alphaproteobacteria, Betaproteobacteria, Gammaproteobacteria, Actinobacteria, Bacteroides, and Deinococcus-Thermus, with a predominance of members of Actinobacteria and Proteobacteria in all of the samples. A redundancy analysis showed that the bacterial succession was divided into three periods, an early stage (10a), a middle stage (25-74a), and a late stage (100-130a), with the total number of culturable bacteria mainly being affected by the soil enzymatic activity, suggesting that the microbial succession correlated with the soil age along the foreland. (C) 2018 Published by Elsevier Editora Ltda. on behalf of Sociedade Brasileira de Microbiologia.
收录类别SCI
WOS关键词ENZYME-ACTIVITY ; PRIMARY SUCCESSION ; CLIMATE-CHANGE ; FOREST SOIL ; TIEN-SHAN ; DIVERSITY ; PERMAFROST ; MOUNTAINS ; FOREFIELD ; CHINA
WOS研究方向Microbiology
WOS类目Microbiology
语种英语
出版者SOC BRASILEIRA MICROBIOLOGIA
WOS记录号WOS:000441165500001
内容类型期刊论文
URI标识http://www.corc.org.cn/handle/1471x/2557770
专题寒区旱区环境与工程研究所
通讯作者Liu, Guangxiu
作者单位1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Desert & Desertificat, Donggang West Rd 320, Lanzhou 730000, Gansu, Peoples R China
2.Key Lab Extreme Environm Microbial Resources & En, Lanzhou, Gansu, Peoples R China
3.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou, Gansu, Peoples R China
推荐引用方式
GB/T 7714
Wu, Xiukun,Zhang, Gaosen,Zhang, Wei,et al. Variations in culturable bacterial communities and biochemical properties in the foreland of the retreating Tianshan No. 1 glacier[J]. BRAZILIAN JOURNAL OF MICROBIOLOGY,2018,49(3):443-451.
APA Wu, Xiukun.,Zhang, Gaosen.,Zhang, Wei.,Liu, Guangxiu.,Chen, Tuo.,...&Li, Zhongqin.(2018).Variations in culturable bacterial communities and biochemical properties in the foreland of the retreating Tianshan No. 1 glacier.BRAZILIAN JOURNAL OF MICROBIOLOGY,49(3),443-451.
MLA Wu, Xiukun,et al."Variations in culturable bacterial communities and biochemical properties in the foreland of the retreating Tianshan No. 1 glacier".BRAZILIAN JOURNAL OF MICROBIOLOGY 49.3(2018):443-451.
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