Exogenous application of spermidine to mature-green tomato affects tomato ripening and carotene biosynthesis under high temperature

CHENG Ling; WANG Jie; HE Yanjun; LIU Songyu; PENG Zhen; CHAO Jiashu; LU Gang

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Exogenous application of spermidine to mature-green tomato affects tomato ripening and carotene biosynthesis under high temperature

CHENG Ling,WANG Jie,HE Yanjun,LIU Songyu,PENG Zhen,CHAO Jiashu,LU Gang * #

Key Laboratory of Horticultural Plant Growth, Development & Quality Control, Ministry of Agriculture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058

*Correspondence author

#Submitted by

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Funding: National Natural Science Foundation of China（No.No. 31071804)）, Zhejiang Provincial Natural Science Foundation （No.R3110209）, Doctoral Fund of Ministry of Education of China（No.No. 20100101110092）

Opened online:20 December 2013

Accepted by: none

Citation: CHENG Ling,WANG Jie,HE Yanjun.Exogenous application of spermidine to mature-green tomato affects tomato ripening and carotene biosynthesis under high temperature[OL]. [20 December 2013] http://en.paper.edu.cn/en_releasepaper/content/4575510

Fruit mature and carotene biosynthesis is adversely affected by high temperature. The objective of this study was to understand the respective impact of exogenous spermidine on ripening, fruit quality and carotene content with off-vine tomato under high temperature. Mature green tomato fruit (Lycopersicon esculentum Mill) of cv. 'zhongshu 6' were pretreated with spermidine solution and then kept under different temperature regimes. The color, firmness and composition changes were examined during storage. Exogenous spermidine and high temperature treatment can severely affect the ripening process and the final nutrient composition of tomato fruit. Under normal temperature, exogenous spermidine enhanced fruit TCI value, total carotene content and ethylene production. Increasing temperature from 26 to 32 ℃, reduced lycopene content, but increased ethylene production. Exogenous application of spermidine could improve the heat resistance and partially alleviate the affect of high temperature, which might attribute to the higher endogenous level of Put and Spm.

Keywords:Vegetable; Tomato; Spermidine; High temperature; Fruit ripening; Carotenoid content.

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