鲜切竹笋伤害信号的初步研究

doi:10.3969/j.issn.1004-1524.2018.06.15

浙江农业学报 ›› 2018, Vol. 30 ›› Issue (6): 992-998.DOI: 10.3969/j.issn.1004-1524.2018.06.15

鲜切竹笋伤害信号的初步研究

何雄¹, 肖尚月¹, 金图南¹, 罗海波², 孙金才¹

1.浙江医药高等专科学校食品学院,浙江宁波 315100;
2.南京师范大学金陵女子学院,江苏南京 210097

收稿日期:2018-03-23 出版日期:2018-06-20 发布日期:2018-07-02
作者简介:何雄(1979—),女,浙江宁波人,硕士,副教授,研究方向为食品加工。E-mail: hex@mail.zjpc.net.cn
基金资助:
浙江省教育厅科研项目(Y201432415); 浙江省重点研发项目(2017C02021)

Preliminary research on wound signal in fresh-cut bamboo shoots

HE Xiong¹, XIAO Shangyue¹, JIN Tunan¹, LUO Haibo², SUN Jincai¹

1. Faculty of Food Science, Zhejiang Pharmaceutical College, Ningbo 315100, China;
2. Ginling College, Nanjing Normal University, Nanjing 210097, China

Received:2018-03-23 Online:2018-06-20 Published:2018-07-02

摘要/Abstract

摘要： 初步研究鲜切处理对距竹笋切割位点不同距离切段中伤害信号传递的影响,并通过外源信号分子茉莉酸甲酯(methyl jasmonate,MeJA)及其合成抑制剂水杨苷异羟肟酸(salicylhydroxamic acid,SHAM)处理,探索MeJA在鲜切竹笋信号分子合成和传递中的作用。结果表明:在切割位点产生了伤害信号物质,并能传导至邻近未受伤组织中,诱导苯丙氨酸解氨酶(phenylalanine ammonia lyase,PAL)、过氧化物酶(peroxidase,POD)活性的升高。MeJA处理能引起鲜切竹笋PAL、POD、超氧化物歧化酶(superoxide dismutase,T-SOD)和抗坏血酸过氧化物酶(ascorbate peroxidase,APX)活性升高,而SHAM处理对上述酶的活性升高具有一定的抑制作用,表明MeJA可能诱导并参与了鲜切竹笋在受到机械伤害后某种伤害信号的合成和传导。

关键词: 植物生理, 茉莉酸甲酯, 竹笋, 信号传导

Abstract: In order to explore the wound signal induced by mechanical damage in fresh-cut bamboo shoots, the effect of fresh-cut treatment on the damage signal transmission of bamboo shoots at different distances from the cutting site and the influence of methyl jasmonate (MeJA) on the synthesis MeJA and transmission of signal molecule in fresh-cut bamboo shoots were investigated with the exogenous signal molecule and its synthetic inhibitor salicylhydroxamic acid (SHAM). The results showed that the wound signal substance was generated at the cleavage site, and it could be transmitted to the adjacent uninjured tissue to increase the activities of phenylalanine ammonia lyase (PAL) and peroxidase (POD). MeJA treatment could increase the activities of PAL, POD, superoxide dismutase (T-SOD) and ascorbate peroxidase (APX) in fresh-cut bamboo shoots, while SHAM treatment had a certain inhibitory effect. Thus, it was hypothesized that MeJA could induce and participate in the synthesis and transmission of some damage signal after mechanical damage in fresh-cut bamboo shoots.

Key words: plant physiology, methyl jasmonate, bamboo, signal transmission

中图分类号:

Q945
S644.2

何雄, 肖尚月, 金图南, 罗海波, 孙金才. 鲜切竹笋伤害信号的初步研究[J]. 浙江农业学报, 2018, 30(6): 992-998.

HE Xiong, XIAO Shangyue, JIN Tunan, LUO Haibo, SUN Jincai. Preliminary research on wound signal in fresh-cut bamboo shoots[J]. , 2018, 30(6): 992-998.

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鲜切竹笋伤害信号的初步研究

Preliminary research on wound signal in fresh-cut bamboo shoots

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