title: UV-B irradiation alleviates the deterioration of cold-stored mangoes by enhancing endogenous nitric oxide levels.
abstract: Effects of UV-B radiation on chilling injury, ripening and endogenous nitric oxide (NO) levels in mango fruit were evaluated. Chilling injury index, ion leakage, and malondialdehyde (MDA) content of the fruit pretreated with 5kJm(-2) UV-B for 4h were significantly lower than those of the control during fruit ripening at ambient temperature following cold storage at 6°C for 10days. Fruit firmness of the mangoes irradiated with UV-B was significantly higher than the control during the ripening period. Endogenous NO levels of the UV-B-irradiated fruit were rapidly increased after UV-B treatment. Pre-treatment of mangoes with the NO specific scavenger, not only abolished UV-B-triggered NO accumulation, but also suppressed the UV-B-reduced chilling injury, oxidative damage, and ripening delay of the fruit. Together, the results suggest that UV-B treatment may enhance chilling tolerance and delay fruit ripening of mangoes by triggering endogenous NO generation in the fruit.
authors.affiliation: Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medical Plants, College of Life and Environmental Science, Hangzhou Normal University, Hangzhou 310036, China.
authors.forename: Jiazhao
authors.initials: J
authors.lastname: Ruan
authors.affiliation: Hangzhou Key Laboratory for Safety of Agricultural Products, College of Life and Environmental Science, Hangzhou Normal University, Hangzhou 310036, China.
authors.forename: Mengya
authors.initials: M
authors.lastname: Li
authors.affiliation: Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medical Plants, College of Life and Environmental Science, Hangzhou Normal University, Hangzhou 310036, China; College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310035, China.
authors.forename: Haihong
authors.initials: H
authors.lastname: Jin
authors.affiliation: Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medical Plants, College of Life and Environmental Science, Hangzhou Normal University, Hangzhou 310036, China; College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310035, China.
authors.forename: Lina
authors.initials: L
authors.lastname: Sun
authors.affiliation: Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medical Plants, College of Life and Environmental Science, Hangzhou Normal University, Hangzhou 310036, China; College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310035, China.
authors.forename: Yun
authors.initials: Y
authors.lastname: Zhu
authors.affiliation: Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medical Plants, College of Life and Environmental Science, Hangzhou Normal University, Hangzhou 310036, China; Hangzhou Key Laboratory for Safety of Agricultural Products, College of Life and Environmental Science, Hangzhou Normal University, Hangzhou 310036, China. Electronic address: maojunxu@163.com.
authors.forename: Maojun
authors.initials: M
authors.lastname: Xu
authors.affiliation: College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310035, China.
authors.forename: Jufang
authors.initials: J
authors.lastname: Dong
mesh_terms: D003080:Cold Temperature; D005519:Food Preservation / Q000379:methods*; D031022:Mangifera / Q000737:chemistry / Q000528:radiation effects*; D009569:Nitric Oxide / Q000032:analysis*; D014466:Ultraviolet Rays
chemical_list: D009569:Nitric Oxide
keywords: Cold storage; Ion leakage; Malondialdehyde (MDA); Mango fruit; Nitric oxide; Postharvest deterioration; UV-B