基诺介导的代谢交叉养在土壤微生物群体中产生耐受性
Zhiyuan Ma1, Meitong Jiang1,2, Chaoyang Liu1
1State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, China.
Nature communications
|November 23, 2024
概括
微生物联盟在酸性土壤中增强作物对的耐受性. Rhodococcus erythropolis和Pseudomonas aeruginosa使用代谢交叉养来改善毒性下的生存,有助于可持续农业.
科学领域:
- 微生物学 微生物学
- 环境科学 环境科学
- 生物化学 生物化学
背景情况:
- 酸性土壤和 (Al) 毒性对农业构成重大挑战.
- 有益的细菌可以给作物赋予Al耐受性,但微生物联盟中的机制尚不清楚.
研究的目的:
- 为了阐明土壤细菌联盟中Al耐受性的机制.
- 研究细菌间沟通在抗氧化碳应激弹性中的作用.
主要方法:
- 共同培养的红杆菌和 Pseudomonas aeruginosa.
- 分析定数感应分子 (HHQ) 降解和转化.
- 在Al压力下评估细菌生长和代谢活动.
主要成果:
- 联盟显示出比单个物种更大的Al耐受性.
- P. aeruginosa释放了HHQ,而R. erythropolis则将其降解.
- R. erythropolis 将HHQ转化为酸盐,增强其细胞壁的稳定性和Al耐受性.
结论:
- 涉及HHQ的代谢交叉养机制维持了微生物的Al耐受性.
- 这种相互作用增强了联盟对毒性的抵抗力.
- 研究结果提供了设计微生物联盟的策略,以在酸性土壤中实现可持续农业.
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