转录基因和生物化学分析显示,小麦干旱受到Trichoderma simmonsii的缓解,并减少了对规范植物应激反应的需求
Julio Ascaso1, David Mendoza-Salido1, Alberto Pedrero-Méndez1
1Department of Microbiology and Genetics, Institute for Agribiotechnology Research (CIALE), University of Salamanca, Villamayor, Spain.
Frontiers in plant science
|December 3, 2025
概括
类真菌通过调节与光合作用和碳水化合物代谢相关的基因表达来保护小麦植物免受干旱压力. 这种应用增强了植物对水资源短缺的抵抗力,这对于可持续农业至关重要.
科学领域:
- 植物科学 植物科学
- 微生物学 微生物学
- 农业科学 农业科学
背景情况:
- 干旱对全球小麦产量构成重大威胁.
- 某些Trichoderma物种对植物有好处,包括增强应激防御.
- 了解Trichoderma在减轻干旱压力的作用对于可持续农业至关重要.
研究的目的:
- 研究Trichoderma asperellum T25和Trichoderma simmonsii T137在干旱压力下对小麦植物的生理和生化影响.
- 用RNA测序分析用Trichoderma治疗的小麦植物中的基因表达变化,并使用RNA测序对它们进行水应激.
- 为了阐明Trichoderma对小麦干旱的保护机制.
主要方法:
- 麦子植物 (Triticum aestivum L. cv. 麦子植物) 是一种小麦类植物. Basilio) 接种了Trichoderma菌株T25和T137.7的疫苗.
- 植物接受了最佳的灌,水应力 (WS) 10天,然后再补水.
- 在不同的灌条件下,对T137注射植物进行了RNA测序.
主要成果:
- 在水应激下,Trichoderma注射可提高Rubisco基因和参与碳水化合物代谢和光合作用的基因的调节.
- 在受压力,用Trichoderma治疗的植物中观察到对酸,プロ林和三糖生物合成基因的降低调节.
- 经过三体处理的植物显示氧化应激标志物 (过氧化,甲) 减少,表型更健康.
结论:
- 皮菌的应用使小麦植物成为原始,最大限度地减少了水应激反应的激活.
- 该研究揭示了Trichoderma诱导的关键转录性变化和代谢调整,从而赋予干旱耐受性.
- 这些发现凸显了Trichoderma作为一种可持续工具的潜力,以提高在干旱环境中的小麦弹性.
相关概念视频
02:41Responses to Drought and Flooding
11.9K
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
11.9K
02:45Responses to Heat and Cold Stress
14.6K
Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
14.6K
01:57Adaptations that Reduce Water Loss
27.8K
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
27.8K
01:10Transcription
154.8K
Overview
Transcription is the process of synthesizing RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in the proper synthesis of messenger RNA (mRNA). Regulation of transcription is responsible for the differentiation of all the different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds...
Transcription is the process of synthesizing RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in the proper synthesis of messenger RNA (mRNA). Regulation of transcription is responsible for the differentiation of all the different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds...
154.8K
02:02Responses to Salt Stress
14.4K
Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.
14.4K
02:04Regulation of Transpiration by Stomata
30.8K
During photosynthesis, plants acquire the necessary carbon dioxide and release the produced oxygen back into the atmosphere. Openings in the epidermis of plant leaves is the site of this exchange of gasses. A single opening is called a stoma—derived from the Greek word for “mouth.” Stomata open and close in response to a variety of environmental cues.
30.8K