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作 者:杨赛 俞冰倩 胡信玉 王凯莉 朱琳[2] 柳参奎 魏巍[1] YANG Sai;YU Bing-qian;HU Xin-yu;WANG Kai-li;ZHU Lin;LIU Shen-kui;WEI Wei(College of Agricultural Equipment Engineering, Jiangsu University,Zhenjiang 212013, China;College of Food and Biological Engineering, Jiangsu University,Zhenjiang 212013, China;State Key Laboratory of Subtropical Forest Cultivation, Zhejiang Agriculture and Forestry University, Hangzhou 311300,China)
机构地区:[1]江苏大学农业装备工程学院,江苏镇江212013 [2]江苏大学食品与生物工程学院,江苏镇江212013 [3]浙江农林大学亚热带森林培育国家重点实验室,浙江杭州311300
出 处:《土壤通报》2019年第3期632-640,共9页Chinese Journal of Soil Science
基 金:国家自然科学基金项目(41503068,31770543);江苏省自然科学基金(BK20150496,BK20150497);江苏大学高级人才启动基金(15JDG016)资助
摘 要:研究基于Illumina平台的高通量测序技术,深度解析东北苏打盐碱土植被进展演替下的3种土壤和羊草根系内生微生物群落结构和多样性。碱斑土壤(C)、碱蓬根际土壤(S)、羊草根际土壤(A)以及羊草根系(AE)分别得到1864、1693、1793、730个细菌可操作分类单元(Operational Taxonomic Unit,OTU),分别得到432、316、502、143个真核微生物OTU。在门分类水平上,苏打盐碱土壤以及羊草根系内生的细菌类群主要分布于9个门,其中变形菌门为主要菌门;苏打盐碱土壤以及羊草根系内生的真核微生物类群主要分布于9个门,其中子囊菌门占主导地位。研究结果表明:苏打盐碱土壤植被进展演替使得土壤细菌和真核微生物群落结构差异性逐渐增大,使得苏打盐碱土壤质量和功能更加稳固,生态系统更加稳定;Halomonas、Nitrincola和Wellemia与东北苏打盐碱土壤植被进展演替相关性较大,Pseudomonas和Paenibacillus与以羊草为主的顶级群落形成相关性较大。The high-throughput sequencing technology based on Illumina platform was used to deeply analyze the endophytic microbial community structure and diversity of three soils and Leymus chinensis roots under the vegetation succession in the soda saline- alkali soil of Northeast China. About 1864, 1693, 1793 and 730 operational taxonomic units and 432, 316, 502 and 143 eukaryotic OTUs were obtained in alkali- spotted soil (C), Suaeda salsa rhizosphere soil (S), Leymus chinensis rhizosphere soil (A) and Leymus chinensis root (AE), respectively. There were 9 phylums inthe bacterial groups of soda saline- alkali soil and Leymus chinensis roots, and proteobacteria was the main phylum. There were 9 phylumsin the endophytic microbial populations of Leymus chinensis roots and soil, among which ascomycota was dominant. The results showed that the vegetation succession gradually increased the variation between soil bacteria and eukaryotic microbial community structure, which led tothe quality and function of soda saline- alkali soil and the ecosystem more stable. Halomonas, Nitrincola and Wellemia are associated with the vegetation succession in the soda saline- alkali soil of Northeast China, and Pseudomonas and Paenibacillus are more closely related to the top community of Leymus chinensis.
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