Effect of methyl jasmonate on energy metabolism in peach fruit during chilling stress
Effect of methyl jasmonate on energy metabolism in peach fruit during chilling stress
复制标题
茉莉酸甲酯对低温胁迫下桃果实能量代谢的影响
DOI：
10.1002/jsfa.5973
复制
发表时间：
2013-06-01
影响因子：
4.1
通讯作者：
Zheng, Yonghua
中科院分区：
文献类型：
--
作者：
Jin, Peng;Zhu, Hong;Zheng, Yonghua
Background Energy status is associated with ripening, senescence and physiological disorder of various types of fruit after harvest, including peaches. Methyl jasmonate (MeJA) was effective in enhancing chilling tolerance in cold-stored peach fruit. The effect of MeJA on energy metabolism in peach fruit was investigated. Results MeJA treatment increased the contents of adenosine triphosphate and adenosine diphosphate, but decreased the content of adenosine monophosphate, which resulted in a higher level of energy charge in peach fruit. Enzyme activities including H+-adenosine triphosphatase, Ca2+-adenosine triphosphatase, succinic dehydrogenase and cytochrome c oxidase were also higher in MeJA-treated fruit than those in control fruit. Meanwhile, MeJA treatment markedly inhibited the increase of ion leakage and the accumulation of malondialdehyde, super-oxidant radical and hydrogen peroxide. Conclusion These results indicated that MeJA could enhance chilling tolerance of peach fruit by inducing enzyme activities related to energy metabolism and maintaining high levels of ATP and energy charge.(c) 2012 Society of Chemical Industry
