干旱区生态环境知识资源中心(Arid): Effects of saline-alkali stress on bacterial and fungal community diversity in Leymus chinensis rhizosphere soil

Arid

DOI	10.1007/s11356-022-20270-6
	Effects of saline-alkali stress on bacterial and fungal community diversity in Leymus chinensis rhizosphere soil
	Liu, Binshuo; Hu, Yunhang; Wang, Ying; Xue, Honghai; Li, Zhonghe; Li, Ming
通讯作者	Li, M
来源期刊	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN	0944-1344
EISSN	1614-7499
出版年	2022
卷号	29 期号:46 页码:70000-70013
英文摘要	The salinization of grassland in arid and semi-arid areas is a serious environmental issue in China. Halophytes show extreme salt tolerance and are grown in saline-alkaline environments. Their rhizosphere microorganisms contribute significantly to plant stress tolerance. To study bacterial and fungal community structure changes in Chinese ryegrass (Leymus chinensis) rhizosphere soil under salt and alkali stress, pot experiments were conducted with different salt and alkali stress intensities. High-throughput sequencing was conducted, and the microbial diversity, community structure, and driving factors were analyzed in rhizosphere soil. The salinization of grassland in arid and semi-arid areas is a serious environmental issue in China. Halophytes show extreme salt tolerance and grow in saline-alkaline environments. A total of 549 species of bacteria from 28 phyla and 250 species from 11 phyla of fungi were detected in the rhizosphere soil of Leymus chinensis with different saline-alkali gradients. Alpha diversity analysis along saline-alkali gradients showed that bacterial community richness and diversity were the highest in the moderate saline-alkali group (pH = 8.28, EC = 160.4 mu S center dot cm(-1)), while fungi had high richness and diversity in the control group (pH = 7.35, EC = 134.5 mu S center dot cm(-1)). The bacteriophyta Proteobacteria, Acidobacteria, Plantomycetes, and the eumycota Ascomycota, Basidiomycota, and Glomeromycota were found with relative abundances of more than 10%. Saline-alkali gradients had significant effects on the abundance of the bacterial and fungal groups in the rhizosphere. The distribution of bacterial colony structure was not significant at the species level (P > 0.05). However, there were significant differences in the distribution of fungal structure and considerable differences in the composition of fungal species among the moderate saline-alkali group, severe saline-alkali group, and control group (P < 0.05). Correlation analysis showed that the bacterial phylum Gemmatimonadetes had a highly significant positive correlation with pH and EC (P < 0. 01). Saline-alkali stress significantly inhibited the abundance of the bacteria Latescibacteria, Cyanobacteria, and Bacteroides, and the fungi Zoopagomycota, Mortierllomycota, and Cryptomycota (P < 0. 05). Compared with fungi, bacterial community composition was most closely correlated with soil salinization. This report provided new insights into the responses of relationships between rhizosphere soil microorganisms and salt and alkali tolerance of plants.
英文关键词	Leymus chinensis Saline-alkali stress Rhizosphere Bacteria Fungi
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000796814200008
WOS关键词	MICROBIAL COMMUNITIES ; BIOGEOGRAPHICAL DISTRIBUTION ; AMENDMENTS IMPROVE ; ORGANIC-MATTER ; 2 HALOPHYTES ; GROWTH ; SALT ; CARBON ; MAIZE ; L.
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392525
推荐引用方式 GB/T 7714	Liu, Binshuo,Hu, Yunhang,Wang, Ying,et al. Effects of saline-alkali stress on bacterial and fungal community diversity in Leymus chinensis rhizosphere soil[J],2022,29(46):70000-70013.
APA	Liu, Binshuo,Hu, Yunhang,Wang, Ying,Xue, Honghai,Li, Zhonghe,&Li, Ming.(2022).Effects of saline-alkali stress on bacterial and fungal community diversity in Leymus chinensis rhizosphere soil.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,29(46),70000-70013.
MLA	Liu, Binshuo,et al."Effects of saline-alkali stress on bacterial and fungal community diversity in Leymus chinensis rhizosphere soil".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 29.46(2022):70000-70013.