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开发了BL-EF以通过引入ACC除氨酶基因在盐应激下获得促进植物生长的功能

Xinyu Jia¹, Linlin Sun², Junsong Yue¹

¹School of Environmental and Chemical Engineering, Xi'an Key Laboratory of Textile Chemical Engineering Auxiliaries, Engineering Research Center of Biological Resources Development and Pollution Control Universities of Shaanxi Province, Key Laboratory of Textile Dyeing Wastewater Treatment Universities of Shaanxi Province, Xi'an Polytechnic University, Xi'an, 710048, PR China.

Plant physiology and biochemistry : PPB

|March 11, 2025

概括

改造为产生ACC除氨酶 (ACCD) 的植物生长促进根茎细菌 (PGPR) 可以在盐应激下显著增强番茄植物的生长. 这种新的方法改善了植物的高度,光合作用和营养吸收,为盐土提供了可持续的解决方案.

科学领域:

农业科学农业科学
微生物学微生物学
植物科学植物科学

背景情况:

促进植物生长的草根细菌 (PGPR) 对于改善土壤健康和植物生产力至关重要.
一些PGPR产生的ACC除氨酶 (ACCD) 有效地减轻了植物中的盐应激.
土壤盐度是一个主要的农业挑战,减少了全球的作物产量.

研究的目的:

为了评估工程 ACCD 生产菌株,BL-EF 在减轻番茄植物盐应激的有效性.
研究BL-EF在盐水条件下对番茄植物生长,生理学和土壤特性的影响.

主要方法:

在大肠杆菌中引入了一种ACCD基因,以创建BL-EF菌株,从而使ACCD产生.
番茄植物接种了BL-EF,并接受了正常和盐应激条件.
分析了植物的高度,光合作用色素,度调节,抗氧化酶活性和土壤酶活性.

主要成果:

BL-EF显著增加了番茄植物的高度,增加了30.94% (正常) 和44.63% (盐应激).
用BL-EF注射增强了光合作用色素,改善了透调节,并增强了抗氧化酶活性.
BL-EF注射导致土壤酶活性增加,植物营养素可用性改善.

结论:

生产ACCD的BL-EF菌株有效地减轻了番茄植物中的盐应激.
BL-EF的应用促进了植物生长,增强了耐压力,改善了土壤条件.
这一战略为盐水环境中的可持续农业提供了巨大的潜力.

关键词:

在ACC脱氨酶中.改造的细菌是一种工程细菌.这就是ROSOS ROS.盐的压力是盐的压力.

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