生物肥料和生物刺激的潜力,酸盐溶解Bacillus subtilis亚种. 在 subtilis M1 菌株和中改善迷香中低可用性耐受性
Hamid Msaad1, Nadia Lamsaadi1, Omar Farssi2
1Unit of Biotechnology and Sustainable Development of Natural Resources, Polydisciplinary Faculty of Beni-Mellal, Sultan Moulay Slimane University, Mghila, PO Box. 592, Beni Mellal 23000, Morocco.
Letters in applied microbiology
|July 27, 2024
概括
在低条件下, (Si) 和Bacillus subtilis M1菌株可改善迷香的生长. 这两种治疗都提高了植物营养,根部发育和抗氧化剂防御,减轻了压力影响.
科学领域:
- 植物科学 植物科学
- 微生物学 微生物学
- 生物化学 生化学
背景情况:
- 低的可用性是一个主要的非生物压力限制植物生长和作物生产率在世界各地.
- 迷香 (Rosmarinus officinalis) 是一种经济上重要的芳香草,容易出现营养缺乏.
研究的目的:
- 研究 (Si) 和Bacillus subtilis M1菌株对迷香在低 (P) 条件下耐受性的单独和联合作用.
- 评估这些治疗对植物生长,P营养,树根发生和氧化应激的影响.
主要方法:
- 迷香植物受到低P压力 (250微米 Ca3HPO4) 或控制条件 (250微米 KH2PO4).
- 治疗包括外源性Si应用和注射Bacillus subtilis M1菌株,单独和组合.
- 测量了植物生长参数,P吸收,酸酶活性,氧化损伤标志物 (甲,过氧化) 和抗氧化剂反应.
主要成果:
- 低P可用性显著损害了迷香的生长和P营养.
- 无论是Si供应还是B. subtilis M1注射,都单独和协同地减轻了P缺乏效应.
- 治疗显著改善了树根生成,酸酸酶活性,P吸收,芽和根干重,并减少了氧化损伤.
结论:
- 外源Si和B. subtilis M1注射是提高迷香对低P压力的耐受性的有效策略.
- 这些治疗方法改善了植物的P营养,生长和抗氧化能力,为P限制土壤下的迷香种植提供了一种可持续的方法.
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