保持联系:土壤-根液压连续体及其在作物抗旱能力方面的作用
Pablo Affortit1, Mutez Ali Ahmed2, Alexandre Grondin1
1DIADE, IRD, CIRAD, Université de Montpellier, Montpellier, France.
Journal of experimental botany
|August 7, 2023
概括
干旱威胁着全球粮食安全,植物根和土壤的相互作用在干旱条件下对吸收水起着关键作用. 植物通过改变根区属性来适应干旱,通常在土壤微生物的帮助下.
科学领域:
- 植物生理学 植物生理学
- 土壤科学 土壤科学
- 农业科学 农业科学
背景情况:
- 干旱对全球粮食安全构成重大风险.
- 根-土壤接口越来越被认为是水应力下液压抵抗的关键位置.
- 了解植物对干旱的反应对于农业的可持续性至关重要.
结论:
- 根-土壤接口是干旱期间植物水状况的关键监管点.
- 涉及根球修饰和微生物共生的植物策略为改善作物弹性提供了潜力.
- 对这些机制的进一步研究可以为减轻干旱对农业影响的战略提供信息.
关键词:
树状菌根真菌 (AMF) 是一种状的真菌.细胞外聚合物质 (EPS) 是一种细胞外聚合物.粘结物 粘结物 粘结物 粘结物根茎的位置是根茎的位置.根系植物 树根 树脂 树脂根架构就是根架构.根毛是根毛,根毛是根毛.更多相关视频
08:09Wastewater Irrigation Impacts on Soil Hydraulic Conductivity: Coupled Field Sampling and Laboratory Determination of Saturated Hydraulic Conductivity
Published on: August 19, 2018
9.2K
06:35Semi-High Throughput Screening for Potential Drought-tolerance in Lettuce Lactuca sativa Germplasm Collections
Published on: April 17, 2015
9.1K
相关概念视频
Responses to Drought and Flooding
10.7K
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.
10.7K
Water and Mineral Acquisition
33.2K
Specialized tissues in plant roots have evolved to capture water, minerals, and some ions from the soil. Roots exhibit a variety of branching patterns that facilitate this process. The outermost root cells have specialized structures called root hairs that increase the root surface, thus increasing soil contact. Water can passively cross into roots, as the concentration of water in the soil is higher than that of the root tissue. Minerals, in contrast, are actively transported into root cells.
33.2K
Adaptations that Reduce Water Loss
25.7K
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.
25.7K
Responses to Salt Stress
13.2K
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.
13.2K
Xylem and Transpiration-driven Transport of Resources
24.0K
The xylem of vascular plants distributes water and dissolved minerals that are taken up by the roots to the rest of the plant. The cells that transport xylem sap are dead upon maturity, and the movement of xylem sap is a passive process.
24.0K
Regulation of Transpiration by Stomata
28.4K
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.
28.4K
