鞭毛主调控因子flhDC调控机制及其在PGPR定殖中的功能

doi:10.16178/j.issn.0528-9017.20221020

摘要/Abstract

摘要：

细菌鞭毛结构和组装的高度复杂性要求鞭毛在合成过程中遵循严格的级联调控。flhDC位于级联调控的顶端,是革兰氏阴性菌鞭毛生物合成的主要调节因子。flhDC在调控鞭毛运动以应对外界环境和营养变化的同时也受到全局性调控、群体感应、新陈代谢和环境信号等因素的影响。根际生防微生物制剂的合理使用可以降低化学肥料和杀虫剂对土壤的污染。能够在植物根部定殖是植物生长促进根际细菌(PGPR)促生的前提,flhDC在此过程中发挥着不可或缺的作用。本文综述了革兰氏阴性菌中鞭毛主调控因子flhDC在转录水平、mRNA翻译水平、翻译后水平受到的多重调节,讨论了flhDC在PGPR植物根表定殖过程中发挥的作用,主要包括flhDC调控PGPR运动性,参与PGPR生物膜合成,提高PGPR在植物根表定殖的稳定性。

关键词: flhDC, 级联调控, PGPR, 调节, 定殖

中图分类号:

刘慧, 蓝明明, 邢蕾蕾. 鞭毛主调控因子flhDC调控机制及其在PGPR定殖中的功能[J]. 浙江农业科学, 2023, 64(10): 2575-2582.

图/表 1

参考文献 89

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鞭毛主调控因子flhDC调控机制及其在PGPR定殖中的功能

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