Morphological and quality characterization of grape berry and rachis in response to postharvest 1-methylcyclopropene and elevated oxygen and carbon dioxide atmospheres

文献类型： 外文期刊

第一作者： Wang, Lei

作者： Wang, Lei;Luo, Zisheng;Yang, Mingyi;Yan, Jiawei;Lu, Hongyan;Li, Dong;Li, Li;Li, Junhao;Chen, Cunkun;Aghdam, Morteza Soleimani;Wu, Bin

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关键词： 1-Methylcyclopropene; Elevated O-2/CO2 atmosphere; Berry; Rachis; Gene expression

期刊名称：POSTHARVEST BIOLOGY AND TECHNOLOGY （ 影响因子：5.537； 五年影响因子：5.821 ）

ISSN： 0925-5214

年卷期： 2019 年 153 卷

页码：

收录情况： SCI

摘要： This research studied the morph'ological characterization and quality attributes of 'Kyoho' and 'Yongyou NO.1' (Vitis vinifera L. x Vitis labrusca L.) grape berry and rachis in response to postharvest treatment with 1-methylcyclopropene (1-MCP) alone or in combination with elevated 80% O-2 (H-O-2)/20% CO2 (H-CO2). Results indicated that the integrated application of exogenous 1-MCP alone and combined with H-O-2/H-CO2 significantly prevented the rachis browning and chlorophyll degradation, maintained the cellular microstructure integrity and promoted esters and terpenes synthesis. Additionally, the transcriptional expression of genes involved in ethylene biosynthesis was sharply downregulated by 1-MCP treatment in both cultivar rachis and berries. And genes expression related to softening was also downregulated by 1-MCP alone and plus elevated O-2/CO2 atmospheres treatment. Particularly, the combinatorial treatment of 1-MCP and H-O-2 effectively impeded berry abscission and alcohols accumulation; whereas 1-MCP with H-CO2 treatment maintained the membrane permeability in berries. Nevertheless, 1-MCP alone or in combination with elevated atmospheres did not significantly affect total soluble solids and titratable acidity and did not harm sensory quality in both 'Kyoho' and 'Yongyou NO.1' cultivars after 32 days of storage.

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