Biotechnology Bulletin ›› 2017, Vol. 33 ›› Issue (6): 1-9.doi: 10.13560/j.cnki.biotech.bull.1985.2016-1138

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Crosstalk Between Hydrogen Sulfide Signal and Other Signals Regulates Drought Tolerance of Plants

ZHOU Zhi-Hao, WANG Yue, MIN Xiong, LI Zhong-Guang   

  1. School of Life Sciences,Yunnan Normal University; Engineering Research Center of Sustainable Development and Utilization of Biomass Energy,Ministry of Education; Key Laboratory of Biomass Energy and Environmental Biotechnology,Yunnan Province,Kunming 650092
  • Received:2016-12-19 Online:2017-06-26 Published:2017-06-19

Abstract: Hydrogen sulfide(H2S)is found to be the third gaseous signal molecule after carbon monoxide(CO)and nitric oxide(NO)in plants,which involves in many physiological processes such as seed germination,plant growth and development,and the acquisition of stress tolerance. Drought stress is the major environmental stress factor that limits crop plant yield. Recently,the fact that H2S involves in the formation of drought tolerance also has been identified in various plant species. Based on the current progress in H2S field,crosstalk between H2S signal and other signals,such as reactive oxygen species(ROS),NO,CO,abscisic acid(ABA),ethylene(ETH),and microRNAs is discussed. Further,the possible mechanisms of H2S inducing the formation of drought tolerance are summarized from the following aspects of stomata movement,osmolytes,antioxidant system,methylglyoxal detoxification system,and heat shock proteins(HSPs);moreover,the future research direction is presented. This review further expanded the possible physiological functions of H2S signal and the formation mechanism of drought tolerance,which is of significance to deeply understand the relationship between H2S and stress tolerance including drought tolerance in plants.

Key words: hydrogen sulfide signal, signal crosstalk, drought tolerance, osmolyte, antioxidant system