Response of plants to water stress

Abstract

Water stress adversely impacts many aspects of the physiology of plants, especially photosynthetic capacity. If the stress is prolonged, plant growth, and productivity are severely diminished. Plants have evolved complex physiological and biochemical adaptations to adjust and adapt to a variety of environmental stresses. The molecular and physiological mechanisms associated with water-stress tolerance and water-use efficiency have been extensively studied. The systems that regulate plant adaptation to water stress through a sophisticated regulatory network are the subject of the current review. Molecular mechanisms that plants use to increase stress tolerance, maintain appropriate hormone homeostasis and responses and prevent excess light damage, are also discussed. An understanding of how these systems are regulated and ameliorate the impact of water stress on plant productivity will provide the information needed to improve plant stress tolerance using biotechnology, while maintaining the yield and quality of crops.

Finding out Relationships Among Some Morpho-Biochemical Parameters of Christ's Thorn (Ziziphus spina-christi) under Drought and Salinity Stresses

“…Many studies have been carried out about the effect of water and salinity stress on plant growth and development (Barceló et al, 1990;Acosta-Gallegos et al, 1991;Ali et al, 2014;Nadeem et al, 2014;Osakabe et al, 2013Osakabe et al, , 2014. Under water and salinity stresses, leaf length and width are decreased, which it leads to a decrease in photosynthesis (Cochard et al, 2002;Zhou et al, 2013).…”

Leaf Development Monitoring and Early Detection of Water Deficiency by Low Field Nuclear Magnetic Resonance Relaxation in Nicotiana tabacum Plants

“…Water stress has adverse impacts on many aspects of plant physiology, one of the first being photosynthesis [1]. Drought stress can also have a negative impact on plants at other levels, including limiting growth [2], and creating oxidative stress [3].…”

Physiological quality of seed and seedling performance of crambe genotypes under water stress

“…Decreases in fresh matter produced under water stress are constantly observed, since water stress induces the reduction in leaf water potential, which leads to the regulation of genes related to the photosynthesis and has, as a consequence, the closure of the stomata and reduction in CO 2 availability, with consequent reduction in the production of mass of the plant (Osakabe et al, 2014). As observed in the present study, there are levels of osmotic potential that cause reduction in the physiological performance of the seeds, which become critical for both germination and vigor, and the development of the seedlings.…”