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首页> 外文期刊>Journal of the Science of Food and Agriculture >Use of 1-methylcyclopropene for alleviating chilling injury and lignification of bamboo shoot (Phyllostachys praecox f. prevernalis) during cold storage.
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Use of 1-methylcyclopropene for alleviating chilling injury and lignification of bamboo shoot (Phyllostachys praecox f. prevernalis) during cold storage.

机译：1-甲基环丙烯在冷藏过程中减轻冷害和竹笋（Phyllostachys praecox f。prevernalis）木质化的用途。

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BACKGROUND: Bamboo shoot is sensitive to chilling, and low-temperature injury is a major limitation to its long-term storage. Studies on the causes of postharvest deterioration in bamboo shoot are few. The aim of the present study was to evaluate the effects of ethylene and 1-methylcyclopropene (1-MCP) treatments on the physiological and biochemical responses of bamboo shoot and their ability as a postharvest tool to alleviate chilling injury and lignification of bamboo shoot during storage at 2 degrees C. RESULTS: Disease incidence, electrical conductivity (EC), respiration and ethylene production of control bamboo shoot increased after about 2-3 weeks of cold storage, associated with higher chilling injury (CI) index. Increased shoot firmness during cold storage was positively correlated with higher lignin and cellulose accumulation, and this accumulation of lignin in flesh tissue was also positively correlated with the activities of phenylalanine ammonia lyase (PAL), cinnamyl alcohol dehydrogenase (CAD) and peroxidase (POD). Ethylene treatment was associated with higher disease incidence, CI index, EC, respiration and ethylene production, enhanced lignin and cellulose accumulation and accelerated the activities of PAL, CAD and POD. In contrast, 1-MCP treatment was associated with lower respiration, ethylene production, CI index and EC, reduced lignin and cellulose accumulation and retarded the activities of PAL, CAD and POD. CONCLUSION: The present findings throw light on the role of ethylene in postharvest physiological disorders such as chilling injury and lignification and suggest that 1-MCP could be used commercially to control these disorders in bamboo shoot during cold storage.
机译：背景：笋对冷藏敏感，低温伤害是对其长期保存的主要限制。关于笋采后变质原因的研究很少。本研究的目的是评估乙烯和1-甲基环丙烯（1-MCP）处理对笋的生理和生化反应的影响，以及它们作为减轻贮藏过程中笋的冷害和木质化的采后工具的能力。结果：冷藏约2-3周后，对照竹笋的病害发生率，电导率（EC），呼吸作用和乙烯产生增加，与较高的冷害指数（CI）相关。冷藏过程中增加的枝条坚挺度与较高的木质素和纤维素积累呈正相关，而木质素在肉组织中的积累也与苯丙氨酸氨裂合酶（PAL），肉桂醇脱氢酶（CAD）和过氧化物酶（POD）的活性呈正相关。 。乙烯治疗与更高的疾病发生率，CI指数，EC，呼吸和乙烯生成，木质素和纤维素积累增加以及PAL，CAD和POD活性增强相关。相反，1-MCP处理与较低的呼吸，乙烯生成，CI指数和EC，木质素和纤维素积累减少以及PAL，CAD和POD活性降低有关。结论：目前的发现揭示了乙烯在收获后生理疾病如冷害和木质化中的作用，并暗示1-MCP可用于商业上控制冷藏期间竹笋的这些疾病。

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