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首页> 外文期刊>Journal of the Science of Food and Agriculture >Effect of ethylene and 1-MCP treatments on strawberry fruit ripening
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Effect of ethylene and 1-MCP treatments on strawberry fruit ripening

机译：乙烯和1-MCP处理对草莓果实成熟的影响

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BACKGROUND: Strawberry is a soft fruit, considered as non-climacteric, being auxins the main hormones that regulate the ripening process. The role of ethylene in strawberry ripening is currently unclear and several studies have considered a revision of the possible role of this hormone.RESULTS: Strawberry fruit were harvested at the white stage and treated with ethephon, an ethylene-releasing reagent, or 1-methylcyclopropene (1-MCP), a competitive inhibitor of ethylene action. The effects of the treatments on fruit quality parameters and on the activity of enzymes related to anthocyanin synthesis and cell wall degradation were evaluated. Some aspects of ripening were accelerated (anthocyanin accumulation, total sugar content and increment of phenylalanine ammonia-lyase (PAL; EC 4.3.1.24) and o-galactosidase (EC 3.2.1.23) activities), while others were repressed (chlorophyll levels and increment of endo-1,4-o-glucanase (EC 3.2.1.4) and o-xylosidase (EC 3.2.1.37) activities) or unchanged (reducing sugar content, pH, titratable acidity and l-L-arabinofuranosidase (EC 3.2.1.55) activity) by ethylene. 1-MCP treatment caused the opposite effect. However, its effects were more pronounced, particularly in anthocyanin accumulation, phenolics, PAL and polygalacturonase (EC 3.2.1.15 and EC 3.2.1.67) activities.CONCLUSION: These observations probably indicate that strawberry produces low levels of ethylene that are sufficient to regulate some ripening aspects. Copyright
机译：背景：草莓是一种柔软的水果，被认为是非更年期的，是生长素，是调节成熟过程的主要激素。目前尚不清楚乙烯在草莓成熟中的作用，一些研究已经考虑了对该激素可能作用的修正。结果：草莓果实在白色阶段收获，并用乙烯利，乙烯释放剂或1-甲基环丙烯处理（1-MCP），一种乙烯作用的竞争性抑制剂。评估了处理对水果品质参数以及与花青素合成和细胞壁降解有关的酶活性的影响。加速了某些方面的成熟（花色素苷积累，总糖含量和苯丙氨酸氨解酶（PAL; EC 4.3.1.24）和邻半乳糖苷酶（EC 3.2.1.23）活性的增加），而其他方面则受到抑制（叶绿素水平和增量） 1,4-邻-葡聚糖酶（EC 3.2.1.4）和邻木糖苷酶（EC 3.2.1.37）活性）或保持不变（降低糖含量，pH，可滴定酸度和lL-阿拉伯呋喃糖苷酶（EC 3.2.1.55）活性） ）。 1-MCP处理产生相反的效果。然而，它的作用更为明显，特别是在花色苷积累，酚类，PAL和聚半乳糖醛酸酶（EC 3.2.1.15和EC 3.2.1.67）活性方面。结论：这些观察结果可能表明草莓产生的乙烯含量很低，足以调节某些物质。成熟的方面。版权

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