文献类型： 外文期刊
第一作者： Li, Yongxin
作者： Li, Yongxin;Liu, Zihan;Yang, Huqing;Zhang, Na;Golding, John B.;Zhang, Na
作者机构：
关键词： Sweet potato; Sprouting; D-fenchone; MENA; Transcriptomic analyses
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： Postharvest sprouting is a major problem for the storage of sweet potato. This study compared the effect of Dfenchone with methyl naphthacetate (MENA) treatments on the sprouting of 'Yan 25 ' sweet potato. The untreated control roots sprouted within 4 days however the roots fumigated with 200 mu L / 23 L D-fenchone or MENA completely inhibited the sprouting of freshly harvested 'Yan 25 ' during 14 days storage at 30 degrees C. Furthermore, treating established sprouts (0.5 cm) with MENA or D-fenchone resulted in damaged sprouts after seven days following treatment with higher MDA content and these sprouts eventually died. Transcriptomic analyses revealed that both D-fenchone and MENA inhibited cell wall synthesis and disrupted auxin and cytokinin pathways in the storage roots, by which suppressed the sprouting. The RNA-seq results of established sprouts showed that both D-fenchone and MENA promoted ethylene and reactive oxidative species (ROS) pathways, which were correlated with the physical damage. In addition, D-fenchone and MENA inhibited auxin pathway, MENA changed cytokinin and D-fenchone disrupted polyamine, cell division and cellulose biosynthesis pathways which all may have contributed to sprout suppression.
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