1-Methylcyclopropene reduces chilling injury of harvested okra (Hibiscus esculentus L.) pods
1-Methylcyclopropene reduces chilling injury of harvested okra (Hibiscus esculentus L.) pods
复制标题
1-甲基环丙烯可减少收获的秋葵 (Hibiscus esculentus L.) 豆荚的冷害
DOI：
10.1016/j.scienta.2012.04.016
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发表时间：
2012-06-15
影响因子：
4.3
通讯作者：
Duan, Xuewu
中科院分区：
文献类型：
--
作者：
Huang, Shaoli;Li, Taotao;Duan, Xuewu
研究了1-甲基环丙烯(1-MCP)对采后秋葵冷害及品质保持的影响。水果在低温下储藏。黄秋葵果实经1或5亩L L-1 1-甲基环丙烯处理16h后，在7℃下贮藏18d，1-甲基环丙烯的应用显著减轻黄秋葵角果的褐变、点蚀等冷害症状，并呈浓度依赖性，这与膜透性降低和膜脂过氧化有关。此外，1-MCP处理抑制了果实颜色参数(色度、明度和色度)的下降和叶绿素的降解，表明1-MCP处理的果实保持了鲜绿的颜色。此外，1-MCP降低了冷害诱导的最大叶绿素荧光强度(F-v/F-m)。植物组织中的应激损伤的指示物。此外，1-MCP处理黄秋葵果实的呼吸强度也显著低于对照。总体而言，1-MCP处理在减少冷害的发展和保持果实品质方面显示出巨大的潜力，这可能是一种很有前途的延长秋葵豆荚低温贮藏寿命的技术。(C)2012爱思唯尔B.V.保留所有权利。
Experiments were conducted to investigate the effects of 1-methylcyclopropene (1-MCP) on chilling injury disorders and quality maintenance of harvested okra (Hibiscus esculentus L.) fruit during storage at low temperature. Okra fruit were treated with 1 or 5 mu l L-1 1-MCP for 16h before storage for 18d at 7 degrees C. Application of 1-MCP significantly alleviated the development of chilling injury disorders such as browning and pitting in okra pods in a concentration-dependent pattern, which was associated with lower membrane permeability and lipid peroxidation. In addition, 1-MCP treatment inhibited the decreases in color parameters (hue angle, lightness and chroma) and chlorophyll degradation, indicating that the bright green color in 1-MCP-treated fruit was well maintained. Furthermore, 1-MCP reduced the chilling-induced decline in variable:maximal chlorophyll fluorescence (F-v/F-m). an indicator of stress injury in plant tissues. Moreover, significantly lower respiration rate in 1-MCP-treated okra was also observed than in control fruit. Overall, 1-MCP treatment showed great potential to reduce the development of chilling injury disorders and maintain fruit quality, which may be a promising technique to extend the storage life of okra pods at low temperature. (C) 2012 Elsevier B.V. All rights reserved.