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细菌联盟在性土壤压力下增强番茄幼苗的营养摄取和分子反应:一项比较研究

Keerthana Rangasamy^1,2, Arabi Mohammed Saleh²

¹School of Bioscience and Technology, Vellore Institute of Technology, Vellore, India.

Frontiers in microbiology

|March 16, 2026

概括

促进植物生长的细菌 (PGPR) 在性土壤中种植的番茄苗中增强营养吸收和耐压能力. 细菌联盟显著改善了苗木活力,生物化学含量和基因表达,以获得更好的作物产量.

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:

性土壤 (pH 7.9-8.5) 对植物生长构成挑战,原因是营养的可用性和吸收有限.
营养素缺乏和营养素吸收不良经常阻碍性环境中的作物发展.

研究的目的:

为了研究两种促进植物生长的草原细菌 (PGPR) 菌株,VITK-1 (Pseudomonas sp.) 的影响. 和VITK-3 (Burkholderia sp. 和VITK-3 (Burkholderia sp. 和VITK-3) 进行研究. ) 在性土壤中的西红 (Solanum lycopersicum) 苗木上.
评估PGPR的个人和联盟应用在改善营养吸收,植物生长和应激耐受性方面的潜力.

主要方法:

在体外查细菌菌株的营养溶解,酶生产,PGPR特征和对植物病原体的对抗活性.
在体内实验评估PGPR治疗对西红苗发芽,生长参数和生物化学含量的影响.
对处理过的番茄植物中与营养调节和应激反应相关的基因表达的分析.

主要成果:

在体外试验证实了PGPR的能力,包括对Fusarium oxysporum和Ralstonia solanacearum (35.7%-76.5%) 的显著对抗活性.
在体内研究表明,PGPR治疗改善了发芽 (73.3%),增强了根和芽的发育,增加了幼苗的活力.
细菌联盟显著提高了蛋白质,素,抗氧化活性,和黄含量,同时激活了关键营养素和与压力相关的基因 (NRT2,PR-1,AMT-1,GR-1,DREB3).

结论:

特别是当作为联盟应用时,PGPR菌株显示出提高营养吸收和改善性土壤中西红植物整体健康的巨大潜力.
细菌注射剂提供了一种可持续的策略,以克服营养限制,改善生化特征,并在具有挑战性的性土壤条件下种植的作物中增强应激弹性.

关键词:

性压力是一种性压力.细菌联合会细菌联合会酶活性的酶活动.基因表达的基因表达方式种子的发芽种子的发芽

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