Nanocomposite packaging regulates extracellular ATP and programed cell death in edible mushroom (Flammulina velutipes).

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ID: 64819
2019
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Abstract
Our previous study indicated that nanocomposite packaging material (Nano-PM) containing nano-Ag, nano-TiO, nano-SiO and nanoattapulgite alleviated postharvest senescence of Flammulina velutipes by regulating respiration and energy metabolism. In this study, extracellular ATP (eATP) and programmed cell death (PCD) were employed as critical factors to further investigate the senescence mechanism of postharvest F. velutipes. Results demonstrated that Nano-PM delayed apyrase activity decrease and stimulated critical oxidative phosphorylation-related gene expression to inhibit eATP content increase, which is a crucial signaling molecule related to delaying senescence. The regulation of eATP resulted in alleviating PCD including chromosomal concentration, DNA fragmentation, Ca influx, high caspase-1 activity and cytochrome c content and leading to high cell viability. Overall, Nano-PM alleviated PCD and postharvest senescence of F. velutipes by regulating extracellular ATP.
Reference Key
shi2019nanocompositefood Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Shi, Chong;Wu, Yuanyue;Fang, Donglu;Ma, Ning;Mariga, Alfred Mugambi;Hu, Qiuhui;Yang, Wenjian;
Journal Food chemistry
Year 2019
DOI
S0308-8146(19)31830-8
URL
Keywords
programmed cell death flammulina velutipes extracellular atp nanocomposite packaging

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