Abstract The short-term postharvest of Volvariella volvacea (straw mushroom) is still a major challenge hampering its long-distance distribution due to chilling injuries at less 10 °C and rapid senescence at over 20 °C. Our previous study has developed a synergistic control of ultrasound and relative humidity (sCURH) to effectively delay the decay and senescence development of straw mushroom. The present study aimed to explore the possible mitochondria-related mechanism of sCURH to retain the postharvest quality of straw mushroom. Results showed that 10-minute ultrasound pretreatment and 15 °C high RH (95 %) could effectively maintain sensory quality and mitochondrial integrity, and down-regulate the activities and gene transcriptions of respiration-related enzymes (PGI, SDH, and CCO). Ultrasound pretreatment combined with 15 °C + 95 % RH remained the higher contents of ATP (>61.36 μg g−1), ADP (> 28.22 μg g−1), and energy charge (> 0.56), and a lower AMP content (

中文翻译：

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受控超声处理和相对湿度下草菇的能量状态和线粒体代谢

摘要 草菇（Volvariella volvacea，草菇）在10°C以下的冷害和20°C以上的快速衰老仍然是阻碍其远距离分布的主要挑战。我们之前的研究开发了超声波和相对湿度 (sCURH) 的协同控制，以有效延缓草菇的腐烂和衰老发展。本研究旨在探讨sCURH在保持草菇采后品质方面可能的线粒体相关机制。结果表明，10 分钟超声预处理和 15°C 高 RH（95%）可有效维持感官质量和线粒体完整性，并下调呼吸相关酶（PGI、SDH 和 CCO）的活性和基因转录。