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 |
DOI | 10.1016/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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