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亚克罗姆巴克特种经过盐应激的棉花中FB-14介导的形态-物理-生物化学和分子改善

Sidra Batool¹, Khadija Rafiq², Muhammad Saeed¹

¹Department of Botany, Faculty of Life Sciences, Government College University, Faisalabad, 38000, Pakistan.

BMC plant biology

|August 20, 2025

概括

促进植物生长的细菌Achromobacter sp. FB-14可以提高棉花的耐盐性. 在对盐敏感的基因型中,FB-14注射改善了离子稳态和基因表达,有助于提高棉花产量.

科学领域:

植物科学
微生物学
农业学

背景情况:

棉花具有适度的盐分耐受性,但这种耐受性在基因型之间有很大差异.
了解基因型特异性对盐应激反应对于提高作物弹性至关重要.

研究的目的:

调查阿克罗姆巴克特的作用关于两种对比的棉花基因型 (FH-326和FH-941) 的盐耐受性
分析盐应激和细菌接种的生理和分子反应.

主要方法:

两种棉花基因型 (FH-326和FH-941) 受到150mM盐应激.
阿克罗姆巴克特的作用根据生理参数 (MDA,H2O2,叶绿素a,离子含量) 和基因表达 (NHX1,SOS1,HAK5,HKT1,LHCB,GhWRKY3,GhWRKY34) 进行了FB-14疫苗的评估.
测量了酶 (CAT) 和过氧酶 (POD) 的活性.

主要成果:

在盐应激下,FH-941积累了更高的甲 (MDA) 和过氧化 (H2O2),而FH-326则显示了更高的CAT和POD活动.
在FH-326中,FB-14注射增加了叶绿素含量,改善了离子吸收和转移.
在FH-941中,盐应激降低了NHX1,SOS1和HAK5的基因表达,而在FH-326中,HKT1表达升高;FB-14调节了这些模式,并在FH-941中调节了LHCB,GhWRKY3和GhWRKY34.

结论:

通过优化抗氧化活性,离子平衡和基因调节,FH-326表现出卓越的盐分耐受性.
亚克罗姆巴克特种通过调节离子稳态和基因表达,FB-14促进了对盐敏感的FH-941的生长.
细菌注射有望在盐水条件下提高棉花产量,因此需要进一步研究各种基因型和分子标记.

关键词:

离子输送器促进植物生长的树枝细菌反应性氧物种盐度 WRKY转录因子

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