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根排泄的代谢物招募转化的微生物群来增强植物的获取能力

Huan Zhang¹, Xiang Huang², Suping Wang²

¹College of Resources and Environment, Huazhong Agricultural University/Research Center of Trace Elements, Wuhan, China.

Plant, cell & environment

|December 1, 2025

概括

细菌大麦SESY通过改变土壤微生物和代谢物来增强作物 (Se) 的吸收. 这种微生物强化策略增加了植物的Se含量,为生物强化提供了一种新的方法.

科学领域:

农业科学农业科学
微生物学微生物学
生物化学生物化学

背景情况:

微生物强化是作物中 (Se) 生物强化的关键策略.
之前已经确定Bacillus cereus SESY可以增强Brassica napus中的Se吸收.

研究的目的:

通过使用多组学来研究B. cereus SESY在Brassica napus根系球中增强Se生物可用性的机制.
确定涉及生物强化中的关键微生物和代谢因素.

主要方法:

综合的多学科方法 (基因组学,代谢学).
在Brassica napus.中进行微生物接种实验.
细菌种群的分析,基因表达 (Se代谢,运动性) 和树枝球代谢产物.
微生物和代谢因素与含量之间的相关性分析.

主要成果:

B. cereus SESY 接种显著增加了 Brassica napus 根 (42.9%) 和芽 (21.5% 在石灰质土壤中; 30.7% 在黄色棕色土壤中) 的 Se 含量.
B. cereus SESY促进了残留Se的转化为可生物利用的形式,并丰富了移动性,Se转化细菌 (例如Lysobacter,Rhodanobacter).
观察到Se代谢和细菌运动基因的上调. 核心根系球代谢物 (N-formylmethionine,xanthine) 与细菌的丰富性相关,并可获得Se. 代谢物和细菌的联合应用增加了144%的植物Se含量.

结论:

一个代谢物介导的微生物网络增强了Brassica napus rhizosphere中的Se流动性和植物吸收.
这项研究揭示了一种新的微生物驱动战略,用于在作物中有效的Se生物强化.

关键词:

细菌谷物种SESY SESY 布拉斯卡纳普斯 (Brassica napus) 是一种植物.生物强化生物强化多种omics技术的技术.根系球微生物的微生物.是一种.

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