Alterations of phenotype, physiology, and functional substances reveal the chilling-tolerant mechanism in two common Olea Europaea cultivars

Frontiers in Plant Science

Plant Science

Shenlong Zhu¹  Erli Niu¹  Wenjun Hu²  Hongling Lu²  Guoxin Shen²  Chenkai Jiang²  Lin Chen² 

[1] Institute of Crops and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang, China;Institute of Sericulture and Tea, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang, China;

关键词: amino acids;    cold resistance;    gene expression;    lipids;    terpenes;   

DOI  :  10.3389/fpls.2023.1046719

 received in 2022-09-17, accepted in 2023-01-12,  发布年份 2023

来源: Frontiers

【 摘 要 】

Olive suffers from cold damage when introduced to high-latitude regions from its native warm climes. Therefore, this study aims to improve the adaption of olive to climates in which it is cold for part of the year. The phenotype, physiological performance, nutrient content, and gene expression of olive leaves (from two widely planted cultivars) were examined after cultivation in normal and cold stress conditions. The results showed that the cold-tolerant cultivar possessed stronger photosynthesis efficiency and higher anti-oxidase activity after cold treatment than the cold-sensitive cultivar. Alteration of gene expression and metabolites in the amino acid metabolism, glycerolipid metabolism, diterpenoid biosynthesis, and oleuropein metabolism pathways played an important role in the cold responses of olive. Furthermore, the construction of the network of genes for ubiquitination and metabolites suggested that polyubiquitination contributes most to the stable physiology of olive under cold stress. Altogether, the results of this study can play an important role in helping us to understand the cold hardiness of olive and screen cold-resistant varieties for excellent quality and yield.

【 授权许可】

Unknown   
Copyright © 2023 Jiang, Hu, Lu, Chen, Niu, Zhu and Shen