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从一个共生菌生物体中获得的auxin的功能分析

Cheng-Yen Chen¹, Poonguzhali Selvaraj¹, Naweed I Naqvi^1,2

¹Fungal Patho-Biology, Temasek Life Sciences Laboratory, Singapore, Singapore.

Frontiers in plant science

|September 25, 2023

概括

(Penicillium citrinum) 的真菌产生了植物激素auxin,该激素显著增强了Arabidopsis thaliana的根和芽生长. 这种真菌辅酶通过促进辅酶信号传递和缓解生长缺陷来促进植物的发育.

科学领域:

植物科学植物科学
微生物学微生物学
生物化学生物化学

背景情况:

微生物产生的辅素 (英多-3-酸) 对植物微生物相互作用至关重要,并影响植物的发育.
虽然草根细菌是众所周知的auxin生产者,但最近的研究强调了植物生长促进真菌在auxin生物合成中的作用.
了解真菌辅酶生产机制是利用微生物对农业的好处的关键.

研究的目的:

为了研究Penicillium citrinum分离B9.的奥克辛生产.
为了确定真菌衍生的辅酶对阿拉比多普西斯塔利亚纳生长和发育的影响.
阐明涉及P. citrinum auxin生产的生物合成途径.

主要方法:

液体色谱双重质谱 (LC-MS/MS) 用于辅酶鉴定.
在P. citrinum治疗下对Arabidopsis thaliana生长的分析.
使用辅酶生物合成抑制剂L-Kynurenine和Arabidopsis taa1突变.
对DR5rev:GFP记者线的同焦显微镜,以评估辅酶信号.

主要成果:

经证实,Penicillium citrinum分离B9可以产生辅酶.
菌辅素显著增强了Arabidopsis thaliana的根和芽的发育.
印-3-pyruvate通路被确定为P. citrinum中auxin生物合成的潜在关键通路.
菌辅酶表现出生物活性,增强辅酶信号传递和缓解Arabidopsis.生长缺陷.

结论:

素的产生是P. citrinum促进植物生长的主要机制.
来自真菌的auxin直接有助于改善植物发育和根结构.
P. citrinum代表了一种宝贵的微生物资源,用于促进植物生长.

关键词:

这种植物是Penicillium citrinum.辅助剂辅助剂辅助剂印度尔-3-乙酸是什么?植物激素是一种植物激素.植物生长植物生长植物生长根部的发展根部的发展这种共生体是共生体.

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