1-Methylcyclopropene extends the shelf-life of 'Shatangju' mandarin (Citrus reticulate Blanco) fruit with attached leaves
1-Methylcyclopropene extends the shelf-life of 'Shatangju' mandarin (Citrus reticulate Blanco) fruit with attached leaves
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DOI：
10.1016/j.postharvbio.2012.01.001
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发表时间：
2012-05-01
影响因子：
7
通讯作者：
Duan, Xuewu
中科院分区：
文献类型：
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作者：
Li, Qing;Wu, Fuwang;Duan, Xuewu
研究了1-甲基环丙烯（1-MCP）对“沙糖桔”贴叶柑橘叶片衰老和果实品质的影响。带叶果实在20 ℃下贮藏20 d前，用5 μ l L ~（-1）1-MCP处理16 h或不处理16 h。施用1-MCP抑制了叶片脱落、叶绿素降解和叶绿素荧光强度比值（F-v/F-m）的下降。但贮藏20 d后，1-MCP处理的带叶果实抗坏血酸、可滴定酸含量及α，α-二苯基-β-苦基肼自由基清除活性与对照果实无显著差异。此外，1-MCP处理对果实的呼吸和去绿没有影响，除了第10天后的呼吸速率。总体而言，这些结果表明，1-MCP处理抑制叶片脱落和衰老，但不影响果实品质。这可能是延长附叶沙糖菊货架期的一项有前途的技术。(C)2012 Elsevier B. V.保留所有权利。
The effects of 1-methylcyclopropene (1-MCP) on leaf senescence and fruit quality in "Shatangju" mandarin fruit with attached leaves were investigated. Fruit with attached leaves were treated without or with 5 mu l L-1 1-MCP for 16h before storage for 20d at 20 degrees C. Application of 1-MCP inhibited leaf abscission, chlorophyll degradation, and the decrease in the ratio of variable to maximal chlorophyll fluorescence (F-v/F-m). However, no significant differences in ascorbic acid and titratable acidity contents, or alpha,alpha-diphenyl-beta-picrylhydrazy radical scavenging activity of flesh were observed between control and 1-MCP-treated fruit with leaves after 20 d in storage. Moreover, treatment with 1-MCP had no effect on respiration and de-greening of fruit, except after day 10 for the respiration rate. Overall, these findings suggest that treatment with 1-MCP inhibited leaf abscission and senescence, but did not influence fruit quality. This may be a promising technique to extend the shelf-life of "Shatangju" mandarins with attached leaves. (C) 2012 Elsevier B.V. All rights reserved.