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Roopashree Byregowda¹, S Rajendra Prasad¹, M K Prasannakumar²

¹Department of Seed Science and Technology, University of Agricultural Sciences, Gandhi Krishi Vignana Kendra (GKVK), Bengaluru, India.

Plant molecular biology

|January 17, 2025

概括

这项研究表明,Fusarium equiseti K23-FE是一种来自印度的内生植物,增强了玉米的生长和承受压力的能力. 它增强了植物对透应激的防御机制,为可持续农业提供了潜力.

科学领域:

植物科学植物科学
微生物学微生物学
农业农业农业农业

背景情况:

由于气候变化,植物面临越来越多的非生物压力,影响生长和生存.
微生物联盟可以增强植物生长和抗压能力,但是内菌的作用尚未完全理解.
产生植物激素的内菌微生物对于在压力环境下植物发育至关重要.

研究的目的:

调查来自印度卡吉尔的一种内生植物Fusarium equiseti K23-FE的潜力,以促进玉米的生长并赋予透应激耐受性.
为了阐明底层的分子机制内菌介导的植物对非生物压力的反应.
在缺水条件下评估内菌殖民对玉米的生理影响.

主要方法:

来自卡吉尔地区的Fusarium equiseti K23-FE的隔离和鉴定.
用聚乙烯糖醇 (PEG) 灌注玉米杂交MAH 14-5与内和诱导透应激.
在压力下对内菌殖民和控制玉米苗的比较转录基因分析.
温室实验用于评估生理参数和抗氧化酶活性.

主要成果:

Fusarium equiseti K23-FE殖民促进了玉米的生长,并提高了对PEG诱导的透应激的耐受性.
转录组分析显示,在殖民植物中,参与代谢,光合作用,二次代谢物和基生物合成途径的基因的上调.
接种的植物表现出相对改善的叶子水含量,叶绿素含量,抗氧化酶活性 (多氧化酶和催化酶),更高的林含量,在缺水的情况下降低了甲含量.

结论:

适应恶劣环境的内植物可以调节非宿主植物对像缺水等非生物压力的反应.
这项研究证明了Fusarium equiseti K23-FE在增强植物生理和分子防御机制方面的潜力.
这些发现支持在可持续农业中使用有益的内植物来提高作物弹性.

关键词:

富沙 (Fusarium equiseti) 菌株K23-FE是一种玉米玉米玉米是一种奥斯莫斯式应力耐受性在 RNA 序列中,RNA 序列转录组转录组就是一个转录组.

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