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从Moringa oleifera中分离出来的细菌内细胞的盐应激减轻潜力

Karim Gul¹, Raham Sher Khan², Aneela Iqbal¹

¹Department of Biotechnology, Abdul Wali Khan University, Mardan, 23200, Pakistan.

Scientific reports

|November 13, 2025

概括

来自Moringa oleifera的细菌内细胞通过增加植物激素和抗氧化剂,在盐度压力下增强大米生长. 这些促进植物生长的微生物为面对盐应激挑战的农业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
植物生理学植物生理学

背景情况:

盐度压力对作物产量和农业可持续性产生重大影响.
细菌内生菌,即居住在植物组织中的微生物,显示出促进植物生长的潜力.
莫林加橄叶 (Moringa oleifera) 含有多种多样化的内菌,具有潜在的植物生长促进特征.

研究的目的:

为了研究Moringa oleifera衍生的内菌对米植物在盐度压力下促进植物生长的影响.
描述精选的内菌株的促进植物生长和减轻压力的机制.
评估这些内植物在可持续农业中的潜力.

主要方法:

从Moringa oleifera中分离和识别内性细菌.
评估酸盐溶解,乙酸 (IAA) 和 siderophore 生产.
评估内菌注射对大米植物生长参数 (形态,生物量) 的影响.
对植物激素水平,光合作用色素和抗氧化酶活动的生物化学分析.

主要成果:

鉴定出了内生菌分离物,即Serratia marcescens (KR-27),Klebsiella aerogenes (KL-4),以及Lelliottia amnigena (KS-7),这些分离物被发现.
隔离KR-27显示出强烈的 siderophore 生产和酸盐溶解;KS-7产生了大量的IAA.
接种剂增强了大米植物的生长,生物质,植物激素水平 (IAA,GA3,SA) 和光合作用色素,同时减少了酸.
内生植物通过调节离子度和诱导抗氧化酶 (CAT,APX,谷氨) 来缓解盐应激.

结论:

源自Moringa oleifera的内生植物,特别是KS-7和KR-27菌株,有效地促进了米的生长,并减轻了盐度压力.
这些内植物通过植物激素调节和抗氧化剂系统诱导来增强植物防御机制.
已识别的内菌株对可持续农业实践有希望,以改善盐水环境中的作物弹性.

关键词:

农业农业农业农业粮食不安全问题粮食不安全植物激素植物激素促进植物生长的能力 - 促进植物生长的能力.人口增长人口增长.盐分盐分盐分盐分盐分可持续发展可持续性可持续性

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