The HY5 transcription factor negatively regulates ethylene production by inhibiting ACS1 expression under blue light conditions in pear

作     者：Weiting Liu Lichao Zhang Li Ma Hui Yuan Aide Wang Weiting Liu;Lichao Zhang;Li Ma;Hui Yuan;Aide Wang

作者机构：Key Laboratory of Fruit Postharvest BiologyKey Laboratory of Protected HorticultureNational&Local Joint Engineering Research Center of Northern Horticultural Facilities Design&Application TechnologyCollege of HorticultureShenyang Agricultural UniversityShenyangLiaoning 110866China Department of Foreign Language TeachingShenyang Agricultural UniversityShenyangLiaoning 110866China 

出 版 物：《Horticultural Plant Journal》 (园艺学报（英文版）)

年 卷 期：2023年第9卷第5期

页      面：920-930页

核心收录：

学科分类：09[农学] 0902[农学-园艺学] 090201[农学-果树学] 

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.32125034 and 31801834) 

主　　题：Pear Pyrus ussuriensis Fruit ripening Blue light Ethylene synthesis PuHY5 PuACS1 

摘      要：Ethylene is the main factor controlling fruit ripening of pear(Pyrus ussuriensis).Ethylene production rate is negatively correlated with fruit shelf life;therefore,it is important to decrease the ethylene levels for optimal fruit ***,we observed that blue light treatment could inhibit ethylene production and promote the expression of ELONGATED HYPOCOTYL 5(PuHY5),a basic leucine zipper domain(bZIP)transcription *** following studies showed that PuHY5 could bind to the promoter of ACC synthase 1(PuACS1),a rate-limiting enzyme in ethylene biosynthesis,and inhibit its *** pears in which Pu HY5 was silenced,the ethylene production and PuACS1 expression were much higher than those in the control *** results demonstrated that blue light inhibited ethylene production through the induction of Pu HY5 in *** finding provides a new method for prolonging fruit shelf life.