title: Plant responses to drought and rewatering.
abstract: Plants would be more vulnerable to water stress and thereafter rewatering or a cycled water environmental change, which occur more frequently under climatic change conditions in terms of the prediction scenarios. Effects of water stress on plants alone have been well-documented in many reports. However, the combined responses to drought and rewatering and its mechanism are relatively scant. As we known, plant growth, photosynthesis and stomatal aperture may be limited under water deficit, which would be regulated by physical and chemical signals. Under severe drought, while peroxidation may be provoked, the relevant antioxidant metabolism would be involved to annihilate the damage of reactive oxygen species. As rewatering, the recoveries of plant growth and photosynthesis would appear immediately through growing new plant parts, re-opening the stomata, and decreasing peroxidation; the recovery extents (reversely: pre-drought limitation) due to rewatering strongly depend on pre-drought intensity, duration and species. Understanding how plants response to episodic drought and watering pulse and the underlying mechanism is remarkably helpful to implement vegetation management practices in climatic changing.
authors.affiliation: State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Science, Xiangshan, Haidian District, Beijing, PR China. xuzz@ibcas.ac.cn
authors.forename: Zhenzhu
authors.initials: Z
authors.lastname: Xu
authors.forename: Guangsheng
authors.initials: G
authors.lastname: Zhou
authors.forename: Hideyuki
authors.initials: H
authors.lastname: Shimizu
mesh_terms: D055864:Droughts; D010788:Photosynthesis / Q000502:physiology; D010944:Plants / Q000378:metabolism*; D014867:Water / Q000378:metabolism*
chemical_list: D014867:Water
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