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Gibberellic acid maintains postharvest quality of Agaricus bisporus mushroom by enhancing antioxidative system and hydrogen sulfide synthesis
Journal of Food Biochemistry ( IF 3.5 ) Pub Date : 2021-09-20 , DOI: 10.1111/jfbc.13939
Dan Zhu 1 , Chaoping Wang 2 , Ye Liu 3 , Yang Ding 4 , Emily Winters 5 , Wenxiang Li 3, 6 , Fansheng Cheng 3, 5, 6
Affiliation  

The application of gibberellic acid (GA3) treatment to the postharvest quality maintenance of white button mushroom (Agaricus bisporus) was investigated. The optimum concentration of exogenous GA3 was 100 mg/L. At this concentration, the color change was inhibited, the firmness was maintained, and the weight loss and respiratory rates were reduced. The GA3 group had significantly lower malonaldehyde (MDA) content and membrane permeability. Reactive oxygen species accumulation was reduced due to the regulation of polyphenol oxidase (PPO), peroxidase (POD), and superoxide dismutase (SOD) enzyme activities. Moreover, the production of endogenous gaseous signaling molecule hydrogen sulfide (H2S) was triggered by GA3 treatment, which enhanced cystathionine γ-lyase (AbCSE) and cystathionine β-synthase (AbCBS) activities alongside the corresponding gene expressions. The preservation of button mushroom postharvest storage quality by GA3 was most likely due to the regulation of reactive oxygen species metabolism and hydrogen sulfide biosynthesis.

中文翻译:

赤霉酸通过增强抗氧化系统和硫化氢合成维持双孢蘑菇采后品质

研究了赤霉酸(GA 3 )处理在白蘑菇( Agaricus bisporus )采后品质维持中的应用。外源GA 3的最佳浓度为100 mg/L。在此浓度下,颜色变化得到抑制,硬度得以保持,体重减轻和呼吸频率降低。GA 3组具有显着较低的丙二醛(MDA)含量和膜渗透性。由于多酚氧化酶 (PPO)、过氧化物酶 (POD) 和超氧化物歧化酶 (SOD) 酶活性的调节,活性氧的积累减少。此外,内源性气体信号分子硫化氢(H 2S) 由 GA 3处理触发,其增强了胱硫醚 γ-裂解酶 (AbCSE) 和胱硫醚 β-合酶 (AbCBS) 的活性以及相应的基因表达。GA 3对蘑菇采后贮藏品质的保持最有可能是由于活性氧代谢和硫化氢生物合成的调节。
更新日期:2021-10-06
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