您好，欢迎访问中国农业科学院 机构知识库！

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Integrated omics reveal the mechanisms underlying softening and aroma changes in pear during postharvest storage and the role of melatonin

文献类型： 外文期刊

作者： Xu, Jiayu 1 ; Zhang, Ying 1 ; Huo, Hongliang 1 ; Qi, Dan 1 ; Dong, Xingguang 1 ; Tian, Luming 1 ; Liu, Chao 1 ; Cao, Yufen 1 ;

作者机构： 1.Chinese Acad Agr Sci, Res Inst Pomol, Xingcheng 125100, Liaoning, Peoples R China

关键词： Zaoshu Shanli; Whole transcriptome; Firmness; Transmission electron microscopy; Ethylene; Metabolite; CeRNA

期刊名称：BMC PLANT BIOLOGY （ 影响因子：4.8； 五年影响因子：5.4 ）

ISSN： 1471-2229

年卷期： 2025 年 25 卷 1 期

页码：

收录情况： SCI

摘要： BackgroundPyrus ussuriensis Maxim. are rich in nutrients, with a pleasant aroma and postharvest softening properties. Postharvest softening influences shelf life of fruit and fruit quality. Melatonin is a natural and safe preservative, which can effectively maintain fruit quality after harvesting, and delay softening of fruit. The aim of study was to elucidate mechanism of pear fruit softening and fruit aroma during postharvest storage and effect of melatonin.ResultsEthylene production rate, respiration rate, weight loss of fruit, soluble solid content, titratable acidity were assessed, and transmission electron microscopy, metabolite profiling, and whole-transcriptome RNA-sequencing were performed. Four important pathways that pentose and glucuronate interconversion, galactose metabolism, sphingolipid metabolism and the starch and sucrose metabolism pathway were involved in pear fruit softening. Ethylene production pathway-related genes, such as ACS and ACO were involved in pear fruit softening and expression of that under exogenous melatonin treatment were slightly inhibited. Fruit aroma changed after storage mainly through lipoxygenase pathway under ddH2O treatment and exogenous melatonin treatment changed composition of volatile organic compounds. CeRNA networks associated with pear softening and aroma were established. Mdm-miR159a, mdm-miR396a/b-p3 and mdm-miR408a were found to modulate both fruit softening and aroma formation through ceRNA analysis. Mdm-miR10988-p3 was functionally diverse and as major regulatory components in ceRNA network.ConclusionsThis study indicated that degradation of cell wall caused pear fruit softening, lipoxygenase pathway mainly affected change of fruit aroma during postharvest storage and exogenous melatonin treatment could improve fruit firmness after storage and alter pear's aroma. The mechanism underlying these effects was elucidated, providing theoretical basis for study of pear fruit softening and preservation technology.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：中国农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台