硫化预处理减轻了度对年轻的胡卜幼苗的不良影响
Saeid Eshghi1, Farzad Amiri Bahmanbiglo2, Sahar Mirzaei3
1Department of Horticultural Science, School of Agriculture, Shiraz University, Shiraz, 7144113131, Iran. eshghi.saeid@gmail.com.
Scientific reports
|October 7, 2025
概括
硫化 (H2S) 的预处理显著提高了年轻的胡卜苗的盐分耐受性. 这种治疗可以促进生长,增强抗氧化防御,帮助胡卜植物承受盐的压力.
科学领域:
- 植物科学 植物科学
- 农业科学 农业科学
- 生物化学 生物化学
背景情况:
- 成熟的胡卜 (Ceratonia siliqua L.) 树木耐受高盐度,但年轻的苗木容易受到盐的压力.
- 硫化 (H2S) 是已知的盐分耐受性的调节者 在草本植物中,但它在木质豆类 (如胡卜) 中的作用未得到充分研究.
研究的目的:
- 调查硫化 (H2S) 预处理在年轻的胡卜苗中提高盐分耐受性的潜力.
- 评估H2S对生长,压力标志物,抗氧化酶活性和盐应激下离子积累的影响.
主要方法:
- 一个实验使用了一个因数设计,其中硫化 (NaHS,H2S供体) 度 (0,75,200μM) 和化 (NaCl) 度 (0,50,100μM) 不同.
- 测量包括生物质,压力标志物 (H2O2,MDA),抗氧化酶活动 (SOD,APX,POD) 和离子 (Na+) 积累.
主要成果:
- 在和非条件下,H2S预处理增强了芽和根生物质,减轻了盐引起的生长减少.
- 在75μM NaHS和100mM NaCl下,压力标志物 (H2O2,MDA) 增加,而抗氧化酶活性 (SOD,APX,POD) 显著增加.
- NaHS预处理有效地减少了叶子和根中的离子 (Na+) 积累.
结论:
- 硫化 (H2S) 显著提高了年轻的胡卜苗的盐分耐受性.
- H2S预处理改善了胡卜种子的生长,并在盐压力下激活了抗氧化防御系统.
- 这表明H2S是一种有前途的策略,可以改善盐水环境中的胡卜种植.
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