氧化通过调节生理生物化学过程,产量属性和谷物质量特征,使香米具有耐受性
Muhammad Imran1, Saddam Hussain2, Anas Iqbal3
1State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Agriculture, South China Agricultural University, Guangzhou 510642, PR China; Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Shaoguan University, Shaoguan 512005, PR China.
Ecotoxicology and environmental safety
|June 7, 2023
概括
氧化 (NO) 供体酸 (SNP) 的应用减轻了香米中的 (Cd) 毒性. 在Cd压力下,SNP改善了植物生长,抗氧化防御和谷物质量,提高了产量和特有的芳香化合物.
科学领域:
- 植物科学 植物科学
- 环境科学 环境科学
- 生物化学 生化学
背景情况:
- (Cd) 污染严重影响植物生理学,产量和质量.
- 已知氧化 (NO) 可以增强水果植物的营养价值.
- 在淡香米中减轻Cd毒性的特定作用仍然未被充分研究.
研究的目的:
- 为了研究化 (SNP) 的保护作用,一个NO的捐赠者,对Cd诱导的压力在香米.
- 评估SNP在Cd压力下对物理生物化学过程,生长,产量和谷物质量的影响.
主要方法:
- 芳香大米受到Cd压力 (100毫克/公斤-1土壤).
- 进行了50μM SNP的叶子应用.
- 分析了植物生长,气体交换,光合作用颜料,抗氧化酶活动和生物化学标记物 (MDA,H2O2,EL).
- 谷物产量和2-乙-1-罗林含量被量化.
主要成果:
- 氧化应激显著降低了大米的生长,光合作用和抗氧化能力,同时增加了氧化损伤标志物 (MDA,H2O2,EL).
- 通过改善植物生长,气体交换和光合作用色素含量,SNP的应用减轻了Cd的毒性.
- SNP治疗增强了抗氧化酶 (SOD,POD,CAT,APX) 和谷氨酸 (GSH) 水平的活性和表达.
- SNP的应用提高了57.68%的香米谷物产量和75.54%的2-乙-1-罗林含量.
结论:
- 叶状SNP的应用有效地减轻了香中的Cd压力.
- 在Cd污染下,SNP增强了生理生化过程,抗氧化防御和谷物质量.
- 在受Cd影响的土壤中,SNP处理提供了一种有前途的策略,以改善香的种植.
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