Effect of yeast saccharide treatment on nitric oxide accumulation and chilling injury in cucumber fruit during cold storage

► Yeast saccharide (YS) reduces MDA content, ion leakage and the chilling index in cold-stored cucumbers. ► YS triggers a marked increase in NO levels in cucumber fruit. ► An NO scavenger and NO synthase inhibitors diminish YS-enhanced cold tolerance. ► YS stimulates cold tolerance in cucumber fruit...

Full description

Saved in:
Bibliographic Details
Published in:Postharvest biology and technology 2012-06, Vol.68, p.1-7
Main Authors: Dong, Jufang, Yu, Qin, Lu, Li, Xu, Maojun
Format: Article
Language:English
Subjects:
Biological and medical sciences
Cell walls
Chilling
Chilling injury
Cold storage
Cold tolerance
Cucumber (Cucumis sativus L.)
Food industries
Fruit and vegetable industries
Fruits
Fundamental and applied biological sciences. Psychology
Injuries
Leakage
Malondialdehyde
Nitric oxide
Nitric oxide (NO)
Nitric-oxide synthase
Yeast saccharide (YS)
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:► Yeast saccharide (YS) reduces MDA content, ion leakage and the chilling index in cold-stored cucumbers. ► YS triggers a marked increase in NO levels in cucumber fruit. ► An NO scavenger and NO synthase inhibitors diminish YS-enhanced cold tolerance. ► YS stimulates cold tolerance in cucumber fruit by triggering endogenous NO production. The effects of a saccharide fraction prepared from yeast cell walls on chilling injury and endogenous nitric oxide (NO) generation in cucumbers and the role of NO in yeast saccharide (YS)-induced cold tolerance of the fruit during postharvest storage, were investigated. Chilling injury index, malondialdehyde (MDA) content, and ion leakage of fruit treated with 0.5g/L YS were significantly reduced as compared with those of control fruit stored at 4°C, showing that YS treatment may reduce chilling injury in cucumber. Moreover, treatment with YS triggered a marked increase in endogenous NO levels. An NO scavenger and NO synthase inhibitors not only diminished YS-triggered NO generation but also suppressed YS-enhanced cold tolerance. Together, our results indicate that YS could have potential postharvest application for reducing chilling injury in cucumber fruit. Furthermore, we found that YS-induced cold tolerance is linked with the induction of endogenous NO accumulation.
ISSN:0925-5214
1873-2356
DOI:10.1016/j.postharvbio.2012.01.005