文献类型： 外文期刊
作者： Gao, Yang 1 ; Zhang, Yujun 1 ; Wang, Puchang 4 ; Zhao, Lili 3 ;
作者机构： 1.Guizhou Acad Agr Sci, Guiyang 550025, Peoples R China
2.Guizhou Normal Univ, Sch Karst Sci, Guiyang 550025, Peoples R China
3.Guizhou Univ, Coll Anim Sci, Guiyang 550025, Peoples R China
4.Guizhou Normal Univ, Sch Life Sci, Guiyang 550025, Peoples R China
5.Shandong Univ, State Key Lab Microbial Technol, Qingdao 266237, Peoples R China
关键词： alpha diversity; co-occurrence network analysis; germinating roots; maize seeds
期刊名称：MICROORGANISMS （ 影响因子：4.1； 五年影响因子：4.5 ）
ISSN：
年卷期： 2024 年 12 卷 7 期
页码：
收录情况： SCI
摘要： Seed endophytes in maize, which facilitate the transmission of microorganisms from one plant generation to the next, may play a crucial role in plant protection and growth promotion. This study aimed to investigate the effects of various maize varieties on the communities of endophytic bacteria in seeds and germinating roots. This study utilized Illumina high-throughput sequencing technology to examine the structural and diversity differences of endophytic bacterial communities within seed maize (BY1507), silage maize (QQ446), and wild maize (Teosinte) in both seeds and germinating roots. The results showed that 416 bacterial genera were detected, with Pantoea, Lachnospiraceae, Pararhizobium, Enterobacteriaceae, Stenotrophomonas, and Pseudonocardia being the most prevalent (relative abundance > 10%) at the genus level. No significant difference was observed in diversity indices (Chao1, ACE, Shannon, and Simpson) of seed endophytes among BY1507, QQ446, and Teosinte. The Shannon and Simpson indices for the germinating root endophyte from the wild variety (Teosinte) were significantly higher than the domesticated varieties (BY1507 and QQ446). PCoA revealed a notable overlap in the endophytic bacterial communities from the seeds of BY1507, QQ446, and Teosinte. Yet, clustering patterns were found. Co-occurrence network analysis showed that BY1507, QQ446, and Teosinte share a notable proportion of shared endophytic bacteria (>30%) between the seeds and germinating roots. This investigation elucidates the characteristics of endophytic microbial communities of seeds and germinating roots with seed maize, silage maize, and wild maize, offering data for future research on the physiological ecological adaptation of these endophytic microbial communities.
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