阿斯珀吉勒斯韦尔维茨基亚 (Aspergillus Welwitschiae) 在多个层面上调节小麦的反应,以减轻诱导的染色体应激
Urooj Jamal1, Zia Ur Rahman1, Muhammad Qadir2,3
1Department of Microbiology, Garden Campus, Abdul Wali Khan University, Mardan, Pakistan.
Current microbiology
|December 9, 2025
概括
菌 (Aspergillus welwitschiae) 通过提高植物免疫力和植物激素水平,提高小麦对污染的耐受性. 这种微生物生物修复改善了受污染的土壤中的作物健康.
科学领域:
- 环境科学 环境科学
- 农业科学 农业科学
- 微生物学 微生物学
背景情况:
- 人类活动造成的 (Cr) 污染对农业生产力和粮食安全构成重大威胁,特别是在发展中国家.
- 制定可持续的生物修复策略对于减轻农业系统中污染的不利影响至关重要.
研究的目的:
- 研究耐受性真菌Aspergillus welwitschiae在污染土壤的生物修复中的潜力及其对小麦 (Triticum aestivum L.) 健康的影响.
- 评估A. welwitschiae积累的能力,并提高小麦对染色应激的耐受性.
主要方法:
- 在Czapek中培养Aspergilluswelwitschiae,以评估积累.
- 用A.welwitschiae对Triticum aestivum L.进行注射,并将植物暴露在染色体应力 (75 ppm) 中.
- 分析植物激素水平 (酸,酸,酸),关键代谢物 (黄,,可溶糖),氧化应激标志物 (MDA,H2O2) 和抗氧化酶活动 (酶,过氧酶).
主要成果:
- A.welwitschiae从培养基中积累了50%以上的,并显著改善了小麦对75ppm的耐受性.
- 注射调节了植物激素水平,增加了关键代谢物,并减少了小麦植物中的氧化应激标志物.
- 观察到增强的抗氧化酶活动,以及在小麦的上层组织中促进的吸收和转移.
结论:
- 阿斯伯吉illus welwitschiae 显示出作为生物剂的显著潜力,用于修复污染的农业土壤.
- 这种真菌通过调节植物防御机制和植物激素调节来增强小麦对压力的耐受性.
- 这项研究强调了一种可持续的方法,以减轻农业中的污染,提高作物弹性和粮食安全.
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