期刊
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
卷 71, 期 36, 页码 13554-13565出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jafc.3c02031
关键词
sodium selenate; seleniumnanoparticles; RNA-seq; ripening physiology; hormonal signaling; volatiles; polyphenols
This study investigated the effects of enriching tomatoes with selenium during the last stages of fruit development, particularly ripening. Selenium enrichment had no significant effects on ethylene production or color changes in the ripening fruit but influenced the biochemical composition of ripe tomatoes. Selenium decreased beta-carotene content, increased naringenin and chlorogenic acid accumulation, and decreased coumaric acid level. It also affected the volatile organic compound profile, including specific apocarotenoid compounds. RNA-seq analysis showed that selenium treatment mainly impacted gene expression related to hormonal signaling, secondary metabolism, flavonoid biosynthesis, and glycosaminoglycan degradation.
In the present work, the effects of enriching tomatoes with selenium were studied in terms of physiological, metabolic, and molecular processes in the last stages of fruit development, particularly during ripening. A selenium concentration of 10 mg L-1 with sodium selenate and selenium nanoparticles was used in the spray treatments on the whole plants. No significant effects of selenium enrichment were detected in terms of ethylene production or color changes in the ripening fruit. However, selenium enrichment had an influence on both the primary and secondary metabolic processes and thus the biochemical composition of ripe tomatoes. Selenium decreased the amount of beta-carotene, increased the accumulation of naringenin and chlorogenic acid, and decreased the coumaric acid level. Selenium also affected the volatile organic compound profile, with changes in the level of specific apocarotenoid compounds, such as beta-ionone. These metabolomic changes may, to some extent, be due to the impact of selenium treatment on the transcription of genes involved in the metabolism of these compounds. RNA-seq analysis showed that the selenium application mostly impacted the expression of the genes involved in hormonal signaling, secondary metabolism, flavonoid biosynthesis, and glycosaminoglycan degradation.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据