减轻带有有益细菌的植物的水压力:对生长和树叶球细菌群体的影响
Daniele Nicotra1,2, Alexandros Mosca1, Giulio Dimaria1
1Department of Agriculture, Food and Environment, University of Catania, 95123 Catania, Italy.
International journal of molecular sciences
|February 26, 2025
概括
有益的细菌,包括合成微生物群落 (SynCom),增强了植物对干旱的抵抗力. 这些促进植物生长的根茎细菌 (PGPR) 改善了番茄等作物的水应激反应.
科学领域:
- 农业科学 农业科学
- 微生物学 微生物学
- 植物科学 植物科学
背景情况:
- 气候变化加剧干旱和土壤盐度,对作物产量和质量产生负面影响.
- 促进植物生长的草根细菌 (PGPR) 提供了一种有希望的策略,以减轻对作物的非生物压力影响.
研究的目的:
- 评估一种合成微生物群落 (SynCom) 和个体菌株,以评估它们在干旱条件下促进植物生长和弹性的能力.
- 调查SynCom和PGPR对减少灌的西红植物和根茎球微生物群落动态的影响.
主要方法:
- 在聚乙烯糖醇 (PEG) 诱导的干旱压力下,SynCom和*Arabidopsis thaliana*的单个菌株的体外评估.
- 温室试验使用无土壤种植的番茄植物进行了40%的降低灌制度,并进行了土壤浸泡处理.
- 在细菌治疗后对树枝球细菌群体的组成和多样性的分析.
主要成果:
- SynCom和几个单独的菌株减轻了PEG诱导的干旱压力,影响了Arabidopsis thaliana的树发育.
- 在土壤中应用SynCom和特定菌株 (*B. velezensis* PSE31B, *P. salmasensis* POE54) 改善了番茄植物在干旱期间的水应激反应.
- 细菌治疗显著改变了树根球细菌群落的多样性和组成,表明与本地微生物群的相互作用.
结论:
- 微生物联盟和个别的PGPR菌株显示出作为提高植物对干旱等非生物压力的弹性可持续工具的潜力.
- 评估的SynCom和特定的PGPR菌株可以在水限条件下提高作物性能.
更多相关视频
11:16A Hydroponic Co-cultivation System for Simultaneous and Systematic Analysis of Plant/Microbe Molecular Interactions and Signaling
Published on: July 22, 2017
14.0K
05:37Author Spotlight: Enhancing Rhizobacteria Colonization on Plant Roots for Improved Microbial Fertilizer Efficiency
Published on: March 1, 2024
732
相关概念视频
Responses to Drought and Flooding
10.6K
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.
10.6K
The Roles of Bacteria and Fungi in Plant Nutrition
34.9K
Plants have the impressive ability to create their own food through photosynthesis. However, plants often require assistance from organisms in the soil to acquire the nutrients they need to function correctly. Both bacteria and fungi have evolved symbiotic relationships with plants that help the species to thrive in a wide variety of environments.
34.9K
Responses to Salt Stress
12.9K
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.
12.9K
Bioremediation
18.1K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
18.1K
Adaptations that Reduce Water Loss
25.1K
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.
25.1K
Plant Breeding and Biotechnology
18.7K
Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.
18.7K
