Preharvest application of hydrogen-rich water not only affects daylily bud yield but also contributes to the alleviation of bud browning

被引：42

作者：

Hu, Huali ^{[1
,2
,4
]}

Li, Pengxia ^{[2
]}

Shen, Wenbiao ^{[1
,3
]}

机构：

[1] Nanjing Agr Univ, Coll Life Sci, Lab Ctr Life Sci, Nanjing 210095, Jiangsu, Peoples R China

[2] Jiangsu Acad Agr Sci, Inst Agr Facil & Equipment, Nanjing 210014, Jiangsu, Peoples R China

[3] Shanghai Jiao Tong Univ, Ctr Hydrogen Sci, Shanghai 200240, Peoples R China

[4] Jiangsu Univ, Sch Food & Biol Engn, Zhenjiang 212013, Jiangsu, Peoples R China

来源：

SCIENTIA HORTICULTURAE | 2021年 / 287卷

基金：

中国国家自然科学基金;

关键词：

Daylily buds; Hydrogen-rich water; Browning; Storage; Chilling injury; NITRIC-OXIDE PRODUCTION; ANTIOXIDANT CAPACITY; OXIDATIVE STRESS; CHILLING INJURY; FATTY-ACID; SENESCENCE; QUALITY; FRUIT; METABOLISM; FLOWER;

D O I：

10.1016/j.scienta.2021.110267

中图分类号：

S6 [园艺];

学科分类号：

0902 ;

摘要：

Although previous studies have suggested that post-harvest hydrogen (H-2) treatment can regulate the senescence of plant tissues, it was not clear whether preharvest treatment had a similar effect. The present study showed that the preharvest irrigating with hydrogen-rich water (HRW), increased the yield of daylily buds, and alleviated the chilling injury symptoms such as decreased sepal browning, which was associated with decreasing reactive oxygen species level, leakage rate and lipid peroxidation, as well as increasing the unsaturated:saturated fatty acid ratio and endogenous H-2 content. In addition, the HRW-treated buds exhibited significantly lower phenylalanine ammonia lyase and polyphenol oxidase enzyme activity, which contributed to the total phenol accumulation being higher in HRW-treated buds than in the control. Overall, these results suggest that HRW preharvest treatment could be used as a useful technology for enhancing chilling tolerance of daylily buds, thus prolonging their useful storage life.

引用

页数：10