被除草剂处理的小麦和受干旱或水淹没影响的三叶草的不同交叉适应
Irina I Vaseva1, Margarita Petrakova1, Ana Blagoeva1
1Institute of Plant Physiology and Genetics-Bulgarian Academy of Sciences, Acad G. Bonchev Str., Bl. 21, 1113 Sofia, Bulgaria.
International journal of molecular sciences
|August 12, 2023
概括
选择性除草剂的应用会影响小麦和三角对干旱和水淹没的抵抗力. 特里提卡尔表现出更好的浸水耐受性,而除草剂的使用影响了两种作物中的林生物合成和活性氧物种积累.
科学领域:
- 农业科学 农业科学
- 植物生理学 植物生理学
- 生物化学 生化学
背景情况:
- 农业化学品可以影响作物对非生物性压力因素的抵抗力.
- 了解特定作物的应对压力下的除草剂对可持续农业至关重要.
研究的目的:
- 为了评估小麦和三的交叉适应干旱和除草剂处理后的浸水.
- 调查植被对压力和除草剂暴露的反应背后的分子机制.
主要方法:
- 小麦 (Triticum aestivum) 和三 (×Triticosecale) 在除草剂应用后遭受干旱和浸水.
- 组织化学染色检测到反应性氧物种 (ROS).
- 进行比较的转录分析分析了ROS清除酶基因表达的分析.
主要成果:
- 在浸水的小麦中,除草剂治疗加剧了负面影响,而三树则表现更好.
- 除草剂在浸水小麦中增加了超氧化离子的积累,在恢复后仍然存在.
- 特里蒂卡尔的耐旱性与L-proline生物合成基因上调有关,但被除草剂减少,增加了ROS.
结论:
- 除草剂对植物弹性的影响是特定于作物的,并取决于非生物应激的类型.
- 压力和除草剂处理的结合会在小麦和三中产生不同的分子反应.
- 除草剂的应用可能会损害像三树这样的作物的耐压力机制.
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