High relative humidity enhances chilling tolerance of zucchini fruit by regulating sugar and ethanol metabolisms during cold storage

被引：24

作者：

Zuo, Xiaoxia ^{[1
]}

Cao, Shifeng ^{[2
]}

Ji, Nana ^{[1
]}

Li, Yanfei ^{[1
]}

Zhang, JingLin ^{[1
]}

Jin, Peng ^{[1
]}

Zheng, Yonghua ^{[1
]}

机构：

[1] Nanjing Agr Univ, Coll Food Sci & Technol, Nanjing 210095, Peoples R China

[2] Zhejiang Wanli Univ, Coll Biol & Environm Sci, Key Lab Fruits & Vegetables Postharvest & Proc Te, Ningbo 315100, Peoples R China

来源：

POSTHARVEST BIOLOGY AND TECHNOLOGY | 2022年 / 189卷

关键词：

Chilling injury; High relative humidity; Sugar metabolism; Pyruvate kinase; Ethanol metabolism; Zucchini fruit; PEACH FRUIT; TEMPERATURE STORAGE; SOLUBLE SUGARS; NAVEL ORANGES; GRAPE BERRY; POSTHARVEST; ACETALDEHYDE; INJURY; ACID; ACCUMULATION;

D O I：

10.1016/j.postharvbio.2022.111932

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

High relative humidity (RH) cold room (RH: 98 +/- 2%) controlled by a 'dry fog' system and normal cold room (RH: 74 +/- 2%) were used to store zucchini fruit to investigate the regulation of high RH on chilling tolerance and sugar and ethanol metabolisms under cold stress. High RH storage inhibited chilling injury (CI) and maintained higher activities of sucrose synthase-synthesis and sucrose phosphate synthase and contents of glucose, fructose and sucrose in zucchini fruit. Meanwhile, high RH-stored fruit exhibited lower activities of hexokinase, phos-phofructokinase, and pyruvate kinase as compared with the control. Besides, the accumulation of acetaldehyde and ethanol under cold stress was decreased by high RH storage together with the inhibition of the increase in activities of alcohol dehydrogenase, pyruvate decarboxylase and expressions of related genes. Taken together, high RH storage enhanced chilling tolerance in zucchini fruit by maintaining high levels of soluble sugars and inhibiting ethanol production.

引用

页数：8

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