NO延缓果蔬成熟衰老与抗病机理研究进展  

Advances in the Mechanism of Physiological Effect of Nitric oxide on Delaying Ripening, Senescence and Disease-resistance of Fruits and Vegetables

作　　者：郭芹[1,2] 吴斌[1,2] 王吉德[2] 李雪萍[1] 陈维信[1] 

机构地区：[1]广东省果蔬保鲜重点实验室华南农业大学园艺学院,广东广州510642 [2]新疆大学化学化工学院,新疆乌鲁木齐830046

出　　处：《热带作物学报》2010年第7期1212-1217,共6页Chinese Journal of Tropical Crops

基　　金：国家自然科学基金-广东省联合基金项目(U0631004);国家科技支撑计划(2006BAD22B04;2006BAD30B06);广东省自然科学基金团队项目(06200670);农业部科技项目(nycytx-33;nyhyzx07-029;nyhyzx07-030)资助

摘　　要：一氧化氮是具有生物活性和信号转导作用的易扩散小分子气体,果蔬细胞通过一氧化氮合酶(NOS)、硝酸还原酶或非生化反应途径产生NO。内源NO可通过抑制乙烯的生物合成和调控环化核苷酸在植物组织中的水平来延缓植物组织的成熟和衰老,延长果蔬贮藏货架期;NO还可诱导采后果蔬产生抗病防卫反应,提高果蔬的抗病胁迫能力。着重概述NO在果蔬采后延缓成熟衰老、诱导抗病等方面的作用及其机理研究进展。Nitric oxide （NO） is an easily diffusible and bioactive gas, and it plays a role in signal transduction. It has been widely accepted that NO is endogenously produced in fruit and vegetable cells, possibly via NO synthase, nitrate reductases or non-biochemical reactions. Endogenous NO may delay the ripening and senescence of fruits and vegetables by inhibiting ethylene biosynthesis and controlling the level of endogenous cyclic nucleotide, thus extending their storage life. It also can induce the disease resistance reaction, mechanism of nitric improve stress resistance ability of fruits and vegetables. This paper reviews the oxide action involved in senescence delay, disease resistance induction in harvested fruits and vegetables.

关 键 词：一氧化氮 延缓衰老 抗病性 

分 类 号：S567.9[农业科学—中草药栽培] S662.9[农业科学—作物学]