期刊
JOURNAL OF PLANT GROWTH REGULATION
卷 37, 期 1, 页码 101-113出版社
SPRINGER
DOI: 10.1007/s00344-017-9710-x
关键词
Abscisic acid (ABA); Anthocyanins; Fragaria x ananassa; Fruit development and ripening; Jasmonoyl-isoleucine (JA-Ile); Oxylipins
资金
- National Commission for Technological and Scientific Research (CONICYT, Chile) [CONICYT] [1140663]
- National Commission for Technological and Scientific Research (CONICYT, Chile) [FONDECYT/Regular] [1140663]
The plant hormone jasmonoyl-isoleucine (JA-Ile) is involved in stress response, development, and secondary metabolite production, although its role in fruit development and ripening remains unknown. The aim of this study is to describe variations of endogenous jasmonate (JAs) contents and JA metabolism-related genes in order to associate these to the evolution of abscisic acid (ABA) content during development and ripening of strawberry (Fragaria x ananassa Duch. cv. Aromas) fruit. A quantitative analysis of phytohormones and gene expression was carried out using liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS) and quantitative reverse transcription PCR (RT-qPCR) assays, respectively. The expression of genes encoding for JA metabolism enzymes exhibited a significant decrease concomitant to reduction of JAs and an increment of ABA levels from flowering to ripening stages. Exogenous application of methyl jasmonate (MeJA) triggered anthocyanin accumulation along with an increase in JA-Ile, JA, and MeJA levels, and a concomitant decrease in ABA. Together, these results provide insights into JAs homeostasis during strawberry fruit development, suggesting that MeJA-induced anthocyanin accumulation could be mediated by the activation of the JA signaling pathway. Furthermore, we propose an antagonistic relationship from the JA to the ABA pathway during non-climacteric strawberry fruit development and ripening.
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