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玉米种子内生细菌的保护和动力学跨后代传输后代传输

Kaihui Zhai^1,2,3, Yingying Zhang^1,2,3, Caihong Zhao^1,2,3

¹State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing 210095, China.

|January 8, 2025

概括

玉米种子内性细菌群体在不同世代和地点都是一致的. 核心细菌,如Ralstonia solanacearum,通过几代人传播,帮助玉米的生长和新陈代谢.

科学领域:

微生物学微生物学
植物科学植物科学
遗传学是一个遗传学.

背景情况:

玉米 (Zea mays L.) 是食品和工业的重要作物.
玉米种子含有内性细菌,对发芽和生长至关重要.
这些细菌的遗传,多样性和功能尚未得到充分研究.

研究的目的:

为了识别和描述玉米种子内菌的细菌.
研究这些细菌在几代人间的遗传和多样性.
探索玉米中种子内菌的功能潜力.

主要方法:

16S rDNA测序被用来识别玉米种子中的内菌.
在三个连续季节和两个种植地点分析了细菌群落.
进行COG和KEGG分析以确定细菌功能.

主要成果:

在212个已识别的操作分类单元 (OTU) 中,蛋白质细菌是占主导地位的类.
56个OTU通过几代人保存,确定了16个核心组件.
主导的核心OTU包括Ralstonia solanacearum,Delftia tsuruhatensis,Bacillus velezensis和Shigella boydii. 这些OTU主要存在于植物中.
细菌功能在代谢过程中得到丰富,特别是氨基酸,碳水化合物和能量代谢.

结论:

玉米种子内性细菌群体是由遗传和环境因素塑造的.
核心内性细菌在很大程度上是通过跨代传播保存的.
了解这些相互关系可以提高作物生产.

关键词:

它们是内性细菌 (endophytic bacteria).玉米玉米玉米是一种代谢过程中的代谢.种子种子种子种子种子.垂直传输的垂直传输方式

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