Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2014, Vol. 30 ›› Issue (15): 241-250.doi: 10.11924/j.issn.1000-6850.2014-0373

Special Issue: 生物技术

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The Progress of Research on Nitric oxide Producing (Scavenging) Systems and Their Physiological Effects in Plant

  

  • Received:2014-02-18 Revised:2014-02-27 Online:2014-05-25 Published:2014-05-25

Abstract: As an important gas signaling molecular, nitric oxide (NO) is the key player in plant development and involved in physiological process and response to different kinds of stress. To clarify the producing and eliminating process of nitric oxide in vivo, the plant nitric oxide biosynthetic, scavenging, and buffering (reservoir) systems were expounded at length. The synthetic systems could be divided into two categories, seven small classes based on the substrate, reaction properties, and cellular localization. Scavenging systems mainly included non symbiotic hemoglobin and free radicals (and their antioxidant enzymes). The buffering (reservoir) systems were mainly composed of S- nitroso- glutathione (GSNO) and glutathione reductase (GSNOR). Furthermore, the physiological effects of various nitric oxide systems in different physiological (stress) conditions had been summarized. Finally, the unsolved problems in plant nitric oxide producing (clear) were analyzed, such as the normal levels of nitric oxide in plants physiology, the standardization of test control in searching for the plants' NOS-like enzymes, correlation between polyamines and nitric oxide.