Microbial diversity in the rhizosphere soils of three Stipa species from the eastern Inner Mongolian grasslands
Microbial diversity in the rhizosphere soils of three Stipa species from the eastern Inner Mongolian grasslands
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内蒙古东部草原三种针茅根际土壤微生物多样性
DOI：
10.1016/j.gecco.2020.e00992
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发表时间：
2020-06
影响因子：
4
通讯作者：
Yuying Bao
中科院分区：
文献类型：
--
作者：
Ji Nan;Lumeng Chao;Xiaodan Ma;Daolong Xu;Li Mo;Xiaodong Zhang;Xupeng Zhaoa;Yuying Bao
湿地土壤微生物影响着地上植物的多样性和生态分布，对陆地生态系统的功能起着重要作用。采用高通量测序技术，对内蒙古东部草原6个样地的3种针茅属植物根际土壤微生物群落进行了研究，分析了微生物多样性与植被多样性及土壤理化性质的关系。优势菌门为：放线菌门31.73-44.73%，变形菌门15.79-23.85%，酸菌门9.42-15.14%，绿弯菌门4.90- 13.60%。优势真菌门为：子囊菌门16.93-82.12%，担子菌门2.44-81.28%，接合菌门0.40- 18.92%。主坐标分析结果表明，呼伦贝尔贝加尔针茅草原和锡林郭勒克氏针茅草原土壤微生物群落组成与其它样地存在显著差异。各样地植物群落的物种特征不同，植被多样性因子、Shannon Weiner指数、Simpson指数以及针茅和羊草的重要值指数对细菌和真菌群落结构有显著影响。在土壤理化参数中，pH、铵态氮（AN）和蔗糖酶（SC）对细菌和真菌的群落结构有显著影响，与微生物与环境因子的相互作用密不可分。结果表明，针茅根际土壤微生物群落多样性复杂，主要受植被多样性、土壤pH、铵态氮和蔗糖酶活性的影响。这些结果加深了对针茅属植物根际土壤微生物与环境因子相关性的认识，为今后针茅属植物的分布特征和生长研究提供了指导。
Rhizosphere soil microorganisms affect the diversity and ecological distribution of aboveground plants and play an important role in the functions of terrestrial ecosystems. Using high-throughput sequencing, we have investigated the rhizosphere soil microbial communities of three species of Stipa from six plots, in the eastern steppe of Inner Mongolia, and analyzed the relationship between microbial diversity and vegetation diversity and soil physicochemical characteristics. The dominant bacteria phyla were: Actinobacteria, 31.73–44.73%; Proteobacteria, 15.79–23.85%; Acidobacteria, 9.42–15.14%; and Chloroflexi, 4.90–13.60%. While the dominant fungi phyla were: Ascomycota, 16.93–82.12%; Basidiomycota, 2.44–81.28%; and Zygomycota, 0.40–18.92%. Principal coordinates analysis (PCoA) indicated that the soil microbial community compositions in the Stipa baicalensis steppe in Hulunbuir and the Stipa krylovii steppe in the Xilingol plots, were significantly different from the others. The species characteristics of the plant communities were different in each plot for the vegetation diversity factors, the Shannon Weiner index, Simpson index, and the importance value indices of the Stipa and Leymus chinensis significantly affected the community structures of the bacteria and fungi. Among the physicochemical soil parameters, soil pH, ammonium nitrogen (AN), and sucrase (SC), significantly affected the community structures of the bacteria and fungi, and were inseparable from the interactions between the microorganisms and environmental factors. We found that microbial community diversity was complex in the rhizosphere soils of the Stipa, and that they were mainly affected by the vegetation diversity, soil pH, ammonium nitrogen, and soil sucrase activities. These results improve our understanding of the correlations between the Stipa rhizosphere soil microorganisms and the environmental factors, and provide guidance for future research on the distribution characteristics and growth of the Stipa.
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DOI：
10.1038/ismej.2011.159
发表时间：
2012-05
期刊：
The ISME journal
影响因子：
--
作者：
通讯作者：
--
三种系统发育相关的多年生灌木植物根际细菌群落多样性随环境梯度的变化
影响因子：
5.2
作者：
Na X;Xu T;Li M;Zhou Z;Ma S;Wang J;He J;Jiao B;Ma F
通讯作者：
Ma F
影响因子：
14.9
作者：
Pruesse E;Quast C;Knittel K;Fuchs BM;Ludwig W;Peplies J;Glöckner FO
通讯作者：
Glöckner FO
影响因子：
11.4
作者：
Garg, Shipra;Bahl, G. S.
通讯作者：
Bahl, G. S.
影响因子：
9.7
作者：
DEBOER, W;TIETEMA, A;LAANBROEK, HJ
通讯作者：
LAANBROEK, HJ