压力反应基因表达,新陈代谢,生理和农业反应由联盟纳米与Trichoderma对抗干旱压力在面包小麦的小麦
Ghalia S Aljeddani1, Ragaa A Hamouda2,3, Amal M Abdelsattar4
1Department of Biology, Collage of Science, University of Jeddah, Jeddah 21589, Saudi Arabia.
International journal of molecular sciences
|October 26, 2024
概括
这项研究探讨了使用促进植物生长的微生物和生物基性纳米颗粒来提高沙特阿拉伯小麦的干旱耐受性. 联合应用显著改善了小麦.
科学领域:
- 农业科学 农业科学
- 植物科学 植物科学
- 生物技术是生物技术.
背景情况:
- 干旱压力严重影响全球小麦产量.
- 制定有效的策略来缓解对小麦的干旱影响对于粮食安全至关重要.
- 促进植物生长的微生物 (PGPM) 和生物纳米颗粒 (SiO2NPs) 显示了提高作物的弹性潜力.
研究的目的:
- 调查Trichoderma harzianum (一种PGPM) 和来自大米灰的生物纳米颗粒 (SiO2NPs) 对沙特阿拉伯春季小麦 (Triticum aestivum L.) 耐干旱的协同作用.
- 评估这些修正案对小麦生理性质,基因表达和干旱耐受性指数的影响.
主要方法:
- 小麦植物被单次和联合应用T. harzianum和SiO2NPs (600ppm) 处理.
- 在干旱压力下测量了生理参数 (叶绿素,胡卜素,颜料,氧化物,抗氧化剂).
- 进行了基因表达分析 (TaP5CS1,TaZFP34,TaWRKY1,TaMPK3,TaLEA,TaActin).
- 干旱耐受性指数 (MP,SSI,YSI,STI) 使用生物信息学工具 (BAR,InterPro,Phytozome,KEGG) 来计算.
主要成果:
- 结合T. harzianum和600ppmSiO2NPs的应用显著增强了干旱压力小麦中的叶绿素,胡卜素,总色素,粉素和抗氧化剂含量.
- 参与干旱反应和蛋白积累的关键基因的表达显著上调.
- 生物信息分析显示,这些基因参与了与干旱应激适应相关的关键生物功能.
- 干旱耐受性指数表明植物弹性和产量稳定性得到改善.
结论:
- 应用T. harzianum,单独或与生物源SiO2NPs结合,有效地提高小麦的干旱耐受性.
- 这些发现为改善沙特阿拉伯等缺水地区的小麦种植提供了宝贵的见解.
- 已识别的基因和代谢产物代表了培育耐旱小麦品种的潜在目标.
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