通过在根部应用来提高番茄 (Solanum lycopersicum L.) 的盐应激耐受性
Borja Ferrández-Gómez1, Juana D Jordá1,2, Mar Cerdán1
1Department of Biochemistry and Molecular Biology, Edaphology and Agricultural Chemistry, University of Alicante, 03080 Alicante, Spain.
Plants (Basel, Switzerland)
|May 25, 2024
概括
对番茄根的 (Si) 应用通过减轻氧化损伤和保持细胞完整性来增强盐应激抵抗力. 低Si剂量在盐水条件下改善了植物健康,为非受精作物提供了可行的策略.
科学领域:
- 农业科学 农业科学
- 植物生理学 植物生理学
- 土壤科学 土壤科学
背景情况:
- 土壤盐化是影响全球作物产量的重大农业挑战.
- 发展耐盐作物对于受影响地区的粮食安全至关重要.
- (Si) 越来越多地被认为是其在植物应激耐受性方面的作用.
研究的目的:
- 为了研究根部应用的 (Si) 在增强番茄植物的盐应激抵抗力的有效性.
- 评估不同Si度对番茄生理学在正常和盐水条件下的影响.
- 确定最佳的Si应用策略,以减轻非化系统中的盐度影响.
主要方法:
- 在温室实验中,将番茄植物置于不同水平的盐度和 (Si) 应用 (0, 1 和 4 mM) 的环境中.
- 分析叶子和根的关键生理和生化参数,包括氧化损伤标志物和营养吸收.
- 评估马隆迪阿尔海德,,催化酶活性和铁 (Fe) 度.
主要成果:
- 在盐应激下,的应用减轻了氧化损伤,并保持了根细胞膜完整性.
- 在盐度下,1毫米Si剂量显著降低了甲 (69.5%), (56.4%) 和酶活性 (57.6%).
- 在盐应激下,Si增强了铁的吸收和分布,达到与正常对照相比的水平.
- 在正常情况下,较低Si剂量 (1mM) 通常会比较高剂量 (4mM) 产生更好的结果.
结论:
- (Si) 的根部应用有效地提高了番茄植物的盐应激耐受性.
- 它减轻了盐度引起的氧化损伤,并增强了营养素的吸收,特别是铁.
- 一个1mMSi度显示,在非化,盐水农业系统中改善番茄弹性是有前途的.
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