| Title: | Contribution of abscisic acid to aromatic volatiles in cherry tomato (Solanum lycopersicum L.) fruit during postharvest ripening |
| Author(s): | Wu Q; Tao X; Ai X; Luo Z; Mao L; Ying T; Li L; |
| Address: | "College of Biosystems Engineering and Food Science, Fuli Institute of Food Science, Key Laboratory of Agriculture Ministry for Postharvest Handling of Agro-Products, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, Zhejiang Province, PR China. College of Biosystems Engineering and Food Science, Fuli Institute of Food Science, Key Laboratory of Agriculture Ministry for Postharvest Handling of Agro-Products, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, Zhejiang Province, PR China. Electronic address: tjying@zju.edu.cn. College of Biosystems Engineering and Food Science, Fuli Institute of Food Science, Key Laboratory of Agriculture Ministry for Postharvest Handling of Agro-Products, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, Zhejiang Province, PR China. Electronic address: lili1984@zju.edu.cn" |
| DOI: | 10.1016/j.plaphy.2018.06.039 |
| ISSN/ISBN: | 1873-2690 (Electronic) 0981-9428 (Linking) |
| Abstract: | "Fruit aroma development depends on ripening. Abscisic acid (ABA) has been reported to be involved in the regulation of tomato fruit ripening. In the present study, the effects of exogenous ABA on aromatic volatiles in tomato fruit during postharvest ripening were studied. The results showed that exogenous ABA accelerated color development and ethylene production as well as the accumulation of carotenoids, total phenolics and linoleic acid in tomato fruit during ripening. Moreover, exogenous ABA increased the accumulation of volatile compounds such as 1-peten-3-one (2.06-fold), beta-damascenone (1.64-fold), benzaldehyde (3.29-fold) and benzyl cyanide (4.15-fold); induced the expression of key genes implicated in the biosynthesis pathways of aromatic volatiles, including TomloxC, HPL, ADH2, LeCCD1B and SlBCAT1 (the values of the log(2) fold changes ranged from -3.02 to 2.97); and promoted the activities of lipoxygenase (LOX), hydroperoxide lyase (HPL) and alcohol dehydrogenase (ADH). In addition, the results of promoter analyses revealed that cis-acting elements involved in ABA responsiveness (ABREs) exist in 8 of the 12 key genes involved in volatile biosynthesis, suggesting that ABA potentially affects aromatic volatile emissions via the regulation of gene expression profiles" |
| Keywords: | Abscisic Acid/*physiology Alcohol Dehydrogenase/metabolism Aldehyde-Lyases/metabolism Carotenoids/metabolism Chlorophyll/metabolism Cytochrome P-450 Enzyme System/metabolism Ethylenes/metabolism Fatty Acids/metabolism Fruit/*growth & development/metabolis; |
| Notes: | "MedlineWu, Qiong Tao, Xiaoya Ai, Xinzi Luo, Zisheng Mao, Linchun Ying, Tiejin Li, Li eng France 2018/07/11 Plant Physiol Biochem. 2018 Sep; 130:205-214. doi: 10.1016/j.plaphy.2018.06.039. Epub 2018 Jun 30" |
