Exploring the potential in postharvest preservation of sweet potato: 2-methylbutanoic acid, isobutyric acid, perillaldehyde and salicylaldehyde, to control Rhizopus stolonifer

文献类型： 外文期刊

第一作者： Li, Lulu

作者： Li, Lulu;Sun, Hong-Nan;Zhang, Miao;Mu, Tai-Hua

作者机构：

关键词： Sweet potato; Rhizopus stolonifer; 2-methylbutanoic acid; Isobutyric acid; Salicylaldehyde; Perillaldehyde

期刊名称：POSTHARVEST BIOLOGY AND TECHNOLOGY （ 影响因子：7.0； 五年影响因子：6.9 ）

ISSN： 0925-5214

年卷期： 2024 年 210 卷

页码：

收录情况： SCI

摘要： Soft rot caused by Rhizopus stolonifer is one of the most destructive postharvest diseases inducing massive loss of sweet potato tuberous roots (TRs). Inhibitory effects of 2-methylbutanoic acid (2-ME), isobutyric acid (IS), perillaldehyde (PE) and salicylaldehyde (SA) against R. stolonifer was investigated, to explore their potential in postharvest preservation of sweet potato. The 2-ME, IS, PE and SA completely inhibited mycelial growth and spore germination, destroyed cell membrane integrity, and induced nucleic acids and proteins leakage of R. stolonifer. Compared to 2-ME and IS, SA caused the most severe ultrastructure damage to R. stolonifer, enhanced cell membrane permeability, reduced mitochondrial membrane potential, and induced more endogenous ROS production, followed by PE. In addition, SA better controlled R. stolonifer infection, decreased MDA content and increased disease-resistant enzyme activities in TRs during 15 d of storage. Therefore, SA might be a promising alternative to fungicides in postharvest preservation of sweet potato TRs.

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