Biological Mechanisms of Waterlogging Tolerance in Plants
View abstract on PubMed
Summary
This summary is machine-generated.Global climate change increases waterlogging, harming crop yields. Understanding plant waterlogging tolerance mechanisms is crucial for food security and developing resilient crops.
Area Of Science
- Plant science
- Agricultural science
- Environmental science
Background
- Waterlogging, caused by increased frequency of extreme weather events linked to climate change, poses a significant threat to global agriculture.
- This abiotic stress severely impedes plant growth, reduces crop yields, and jeopardizes food security.
- Developing waterlogging-tolerant crop varieties is essential for sustainable agricultural production.
Purpose Of The Study
- To review the detrimental effects of waterlogging on plants.
- To summarize the physiological and morphological adaptations plants exhibit in response to waterlogging.
- To consolidate current knowledge on the genetic and molecular mechanisms underlying plant waterlogging tolerance.
Main Methods
- Literature review of scientific studies on plant responses to waterlogging.
- Analysis of physiological and morphological adaptations.
- Synthesis of research on genes and molecular pathways involved in waterlogging tolerance.
Main Results
- Waterlogging causes significant damage to plant growth and development.
- Plants display various adaptive strategies, including physiological and morphological changes, to cope with waterlogged conditions.
- Key genes and molecular mechanisms contributing to waterlogging tolerance have been identified.
Conclusions
- A comprehensive understanding of plant waterlogging tolerance mechanisms is vital for addressing agricultural challenges posed by climate change.
- This review highlights current knowledge gaps and future research directions for breeding waterlogging-tolerant crops.
- Further research is needed to translate molecular insights into practical applications for enhancing crop resilience and ensuring food security.
Related Concept Videos
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.
Under normal conditions, water taken up by the plant evaporates from leaves and other parts in a process called transpiration. In times of drought stress, water that evaporates by transpiration far exceeds the water absorbed from the soil, causing plants to wilt. The general plant response to drought stress is the synthesis of hormone...
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.
Plant cell cytoplasm has a high solute concentration, which causes water to flow from the soil into the plant due to osmosis. However, excess salt in the surrounding soil increases the soil solute concentration, reducing the plant’s ability to take up...
Plant cells maintain appropriate osmotic balance in extreme conditions. For instance, plants in dry environments store water in vacuoles, limit the opening of their stoma, and have thick, waxy cuticles to prevent unnecessary water loss. Some species of plants that live in salty environments store salt in their roots. As a result, water osmosis occurs in the root from the surrounding soil.
Tonicity
Tonicity describes the capacity of a cell to lose or gain water depending on the solute...
Tonicity describes the capacity of a cell to lose or gain water. It depends on the quantity of solute that does not penetrate the membrane. Tonicity delimits the magnitude and direction of osmosis and results in three possible scenarios that alter the volume of a cell: hypertonicity, hypotonicity, and isotonicity. Due to differences in structure and physiology, tonicity of plant cells is different from that of animal cells in some scenarios.
Plants and Hypotonic Environments
Unlike animal...
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.
When the environmental dynamics fall out of the optimal limit for a given species, changes in metabolism and functioning occur – and this is defined as stress. Plants respond to stress by initiating changes in gene expression - leading to adjustments in plant...
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.
In land plants, the uppermost cell layer of a plant leaf, called the epidermis, is coated with a waxy substance called the cuticle. This hydrophobic layer is composed of the polymer cutin and...

