外源NO对采后芒果果实低温胁迫后H2O2代谢的影响

doi:doi:10.3969/j.issn.1008-0864.2013.02.21

›› 2013, Vol. 15 ›› Issue (2): 131-136.DOI: doi:10.3969/j.issn.1008-0864.2013.02.21

外源NO对采后芒果果实低温胁迫后H2O2代谢的影响

杨杨1,2,3,申琳2,生吉萍2,4,王凤忠1,王锋1,范蓓1*

(1.中国农业科学院农产品加工研究所, 农业部农产品加工综合性重点实验室, 北京 100193|2.中国农业大学食品科学与营养工程学院, 北京 100083|3.内蒙古农业大学食品科学与工程学院, 呼和浩特 010018|4.中国人民大学农业与农村发展学院, 北京 100872)

收稿日期:2012-12-19 修回日期:2013-01-10 出版日期:2013-04-15 发布日期:2013-04-16
通讯作者: 范蓓,副研究员,博士,主要从事农产品贮藏加工领域研究。E-mail:fanbei517@163.com
作者简介:杨杨,讲师,硕士,主要从事食品科学领域研究。E-mail:northerapril@126.com。
基金资助:
中国农业科学院基本科研业务费(0032012018)资助。

Effect of Exogenous NO on H2O2 Metabolism in Postharvest Mango Fruit under Low Temperature Stress

YANG Yang1,2,3, SHEN Lin2, SHENG Ji-ping2,4, WANG Feng-zhong1, WANG Feng1, FAN Bei1*

(1.Key Laboratory of Agro-Products Processing, Ministry of Agriculture|Institute of Agro-Products Processing Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193|2.College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083|3.College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018|4.School of Agricultural Economics and Rural Development, Renmin University of China, Beijing 100872, China)

Received:2012-12-19 Revised:2013-01-10 Online:2013-04-15 Published:2013-04-16

摘要/Abstract

摘要：

一氧化氮（NO）是植物体内重要的信号分子。为了探讨NO对采后芒果低温胁迫后果实过氧化氢（H2O2）及抗氧化酶的影响，分别采用0.08 mmol/L NO供体SNP溶液和30 μL/L NO气体处理采后青芒果果实，并于3℃低温贮藏12 d后，检测芒果果皮和果肉中H2O2含量和相关抗氧化酶的活性。结果表明，外源NO浸泡处理能显著降低低温胁迫后芒果果皮中H2O2水平，提高超氧化物歧化酶（SOD）、过氧化物酶（POD）和过氧化氢酶（CAT）的活性，其中NO对CAT活性的影响最大，可能是外源NO处理调控H2O2水平的关键作用点。NO供体SNP处理效果优于NO气体处理，主要作用部位为芒果果皮。

关键词: 芒果；一氧化氮；过氧化氢；低温胁迫

Abstract:

Nitric oxide (NO) is an important signal molecule in plants. In order to discuss the effect of NO on H2O2 level and metabolism in postharvest mango fruit under low temperature stress, 0.08 mmol/L NO donor SNP and 30 μL/L NO gas were used to treat green mango fruit before cold storage. H2O2 content and the activities of superoxide dismutase (SOD), catalase (CAT), peroxidase(POD) and ascorbate peroxidase (APX) were measured 12 d after cold storage at 3℃. The results showed that both SNP and NO gas treatments had significantly reduced H2O2 level in postharvest mango fruit pericarp, and increased the activities of SOD, CAT and POD. The effect of SNP was more significant than NO gas. The main effect site of exogenous NO was pericarp.

Key words: mango, nitric oxide, hydrogen peroxide, low temperature stress

中图分类号:

S667.7

杨杨1,2,3,申琳2,生吉萍2,4,王凤忠1,王锋1,范蓓1*. 外源NO对采后芒果果实低温胁迫后H2O2代谢的影响[J]. , 2013, 15(2): 131-136.

YANG Yang1,2,3, SHEN Lin2, SHENG Ji-ping2,4, WANG Feng-zhong1, WANG Feng1, FAN B. Effect of Exogenous NO on H2O2 Metabolism in Postharvest Mango Fruit under Low Temperature Stress[J]. , 2013, 15(2): 131-136.

外源NO对采后芒果果实低温胁迫后H2O2代谢的影响

Effect of Exogenous NO on H2O2 Metabolism in Postharvest Mango Fruit under Low Temperature Stress

PDF

可视化

被引次数

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 0

编辑推荐

Metrics