文献类型： 外文期刊
第一作者： Huang, Hua
作者： Huang, Hua;Jiang, Yueming;Huang, Hua
作者机构：
关键词： pitaya fruit; cuticle; wax; cutin; ACL
期刊名称：AGRICULTURE-BASEL （ 影响因子：2.925； 五年影响因子：3.044 ）
ISSN：
年卷期： 2019 年 9 卷 12 期
页码：
收录情况： SCI
摘要： This study comprehensively analysed the chemical composition of the cuticle in pitaya fruits. The total coverage amount of the waxes versus cutin monomers accumulated at a ratio of 0.6, corresponding to masses per unit of 30.3 mu g center dot cm(-2) and 50.8 mu g center dot cm(-2), respectively. The predominant wax mixtures were n-alkanes in homologous series of C-20-C-35, dominated by C-31 and C-33; as well as triterpenoids with an abundant amount of uvaol, lupenon, beta-amyrinon, and beta-amyrin. The most prominent cutin compounds were C-16- and C-18-type monomers, in which 9(10),16-diOH-hexadecanoic acid and 9,10-epoxy-omega-OH-octadecanoic acid predominated, respectively. The average chain length (ACL) of aliphates in pitaya fruit cuticle (30.5) was similar to that estimated in leaf waxes, and higher than that in most of the fruit and petal waxes that have been reported. We propose that the relatively high ACL and wax/cutin ratio might enhance the cuticular barrier properties in pitaya fruit cuticle to withstand drought.
分类号：
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