High-throughput sequencing-based analysis of the composition and diversity of endophytic bacterial community in seeds of saline-alkali tolerant rice
文献类型： 外文期刊
作者： Wang, Zhishan 1 ; Zhu, Yongqiang 3 ; Li, Ni 2 ; Liu, Hai 2 ; Zheng, Huajun 3 ; Wang, Weiping 2 ; Liu, Yang 1 ;
作者机构： 1.Univ Sci & Technol Beijing, Sch Chem & Biol Engn, Beijing 100083, Peoples R China
2.Hunan Hybrid Rice Res Ctr, State Key Lab Hybrid Rice, Changsha 410125, Peoples R China
3.Chinese Natl Human Genome Ctr Shanghai, Shanghai MOST Key Lab Hlth & Dis Genom, Shanghai 201203, Peoples R China
关键词： Saline-alkali tolerant rice seed; High-throughput sequencing; Endophytic bacteria; Diversity; Salt concentration
期刊名称：MICROBIOLOGICAL RESEARCH （ 影响因子：5.415； 五年影响因子：6.038 ）
ISSN： 0944-5013
年卷期： 2021 年 250 卷
页码：
收录情况： SCI
摘要： The study of endophytic bacteria in saline-alkali tolerant rice seeds is of great help to the follow-up study of saline-alkali tolerant mechanism and the exploitation of saline-alkali tolerant microbial resources. In this study, high-throughput sequencing technology based on the Illumina Miseq platform was used to reveal the "core microbiota" by examining the diversity and community structures of seed endophytic bacteria in saline-alkali tolerant rice grown under different salt concentrations and explore the effect of salt concentration on its endophytic bacteria. Here, 49 endophytic OTUs were found to coexist in all samples. At the phylum level, the dominant phyla were Proteobacteria (83.90 %-99.87 %). At the genus level, Pantoea (44.65-94.76 %) which represents the core microbiota in saline-alkali tolerant rice seeds, served as the dominant genus that coexisted in all samples tested. Through further analysis, we found that the abundance of Pantoea in saline-alkali tolerant rice seeds was positively proportional to the level of salt concentration. Overall, this study showed that the core microbiota of saline-alkali tolerant rice seeds is Pantoea, and the change of salt concentration is a key factor in the formation of endophytic bacteria in saline-alkali tolerant rice seeds.
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