Melatonin Mediated Regulation of Drought Stress: Physiological and Molecular Aspects

Plants - Tập 8 Số 7 - Trang 190
Anket Sharma1, Zheng1
1State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China

Tóm tắt

Drought stress adversely effects physiological and biochemical processes of plants, leading to a reduction in plant productivity. Plants try to protect themselves via activation of their internal defense system, but severe drought causes dysfunction of this defense system. The imbalance between generation and scavenging of reactive oxygen species (ROS) leads to oxidative stress. Melatonin, a multifunctional molecule, has the potential to protect plants from the adverse effects of drought stress by enhancing the ROS scavenging efficiency. It helps in protection of photosynthetic apparatus and reduction of drought induced oxidative stress. Melatonin regulates plant processes at a molecular level, which results in providing better resistance against drought stress. In this review, the authors have discussed various physiological and molecular aspects regulated by melatonin in plants under drought conditions, along with their underlying mechanisms.

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