Effects of thidiazuron on the quality and storage properties of mango fruit during postharvest  

作　　者：Tangxin Jiang Cong Luo Wen Wan Rongzhen Liang Tingting Lu Yuze Li Fangfang Xie Canbin Chen Xi Li Xiaona Xie Xinhua He 江唐鑫;罗聪;万雯;梁容真;陆婷婷;李雨泽;谢芳芳;陈灿斌;李曦;谢晓娜;何新华(State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources,Guangxi Key Laboratory for Agro-Environment and Agro-Product Safety,National Demonstration Center for Experimental Plant Science Education,College of Agriculture,Guangxi University,Nanning,China;Guangxi Key Laboratory of Biology for Mango,Baise University,Baise,China)

机构地区：[1]State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources,Guangxi Key Laboratory for Agro-Environment and Agro-Product Safety,National Demonstration Center for Experimental Plant Science Education,College of Agriculture,Guangxi University,Nanning,China [2]Guangxi Key Laboratory of Biology for Mango,Baise University,Baise,China

出　　处：《Food Quality and Safety》2024年第3期545-555,共11页食品品质与安全研究（英文版）

基　　金：supported by the Innovation Team of Guangxi Mango Industry Project(No.nycytxgxcxtd-2021-06-02);Guangxi Key Laboratory of Biology for Mango(No.GKLBM02204);Science and Technology Major Projects of Guangxi(No.GXKJ-AA22068098-2);the Six One’Special Action of‘Strengthening Agriculture and Enriching People’by Science and Technology Vanguard(No.202304-04);the Youth Talent Fund Project of Guangxi Natural Science Foundation(Nos.2018GXNSFBA035558 and 2018GXNSFBA050026),China.

摘　　要：Thidiazuron(TDZ)is used for the expansion of fruits,but excessive levels of TDZ lead to a decline in fruit quality.The appropriate concentration of TDZ for mango expansion without a decline in quality is not clear.In the present study,four different concentrations(5,10,15,and 20 mg/L)of TDZ were applied via spraying on mango plants,and several physiological and biochemical indicators were measured.The results showed that TDZ treatment significantly increased mango fruit size and single-fruit weight.In mango fruit,TDZ treatment decreased the disease index,delayed the increase in the malondialdehyde and H2O2 content,and maintained firmness and antioxidant capacities at a relatively high level during postharvest storage.At the same time,TDZ treatment delayed the decrease in the giberellin,indoleacetic acid and jasmonic acid content in mango,and reduced the accumulation of abscisic acid and ethylene.These trends are consistent with TDZ treatment leading to extension of the shelf life of mango.Furthermore,ethylene biosynthesis,signal transduction,and cell wall dismantling-related genes were investigated.The results indicated that the expression of the MiACS,MiETR2,MiERF113,MiERF010,MiERF054,MiEXP,MiPG14,MiPG21,MiCEL,and MiPEL genes in mango was inhibited under TDZ treatment compared with the control.In summary,TDZ treatment can significantly increase the size and weight of mango fruit and can extend its shelf life.The most suitable concentration is 10–15 mg/L TDZ,which will not affect the quality of mango fruit.

关 键 词：MANGO THIDIAZURON QUALITY storage properties POSTHARVEST 

分 类 号：TS255.3[轻工技术与工程—农产品加工及贮藏工程]