The fruit swelling effect of forchlorfenurun （CPPU） and fruit thinning effect of ethychlozate on Tainong 1 mango （Mangifera indica L. cv. ） were studied. Spraying 32 mg/L CPPU at 7 and 21 d post flowering for just...The fruit swelling effect of forchlorfenurun （CPPU） and fruit thinning effect of ethychlozate on Tainong 1 mango （Mangifera indica L. cv. ） were studied. Spraying 32 mg/L CPPU at 7 and 21 d post flowering for just once significantly improved the fruit size of mango, but had no significant impact on fruit quality and flavor. Spraying 200 mg/L ethychlozate at 7 d post flowering for just once significantly increased fruit drop rate and single fruit weight of mango; fruit grade was improved and total soluble solid increased to the maximum value, so ethychlozate had good fruit thinning effect.展开更多
Kiwifruit is an economically and nutritionally valuable fruit.Forchlorfenuron(CPPU)is widely used to improve fruit set and yield of kiwifruit.However,the mechanism through which CPPU regulates fruit enlargement remain...Kiwifruit is an economically and nutritionally valuable fruit.Forchlorfenuron(CPPU)is widely used to improve fruit set and yield of kiwifruit.However,the mechanism through which CPPU regulates fruit enlargement remains unclear.Physiological and RNA-seq data revealed that the greatest contribution of CPPU treatment to fruit growth occurred at 28 to 42 d after bloom(DAB).CPPU application accelerated sugar metabolism by increasing the content of sucrose through increasing the transcripts of genes such as SUSY,HK,and FK in sucrose metabolism.In the early stages of fruit development,up-regulation of the starch synthesis gene AGPase and the decomposition geneβ-AMY indicated the occurrence of starch turnover.After CPPU treatment,genes related to the synthesis and signal transduction of auxin and gibberellins were downregulated.During the early fruit developmental stage,the cytokinin content and the expression of signal transduction genes were increased.In addition,the expression of cyclin genes,related to cell division,was up-regulated within three weeks after CPPU treatment.This indicates that CPPU treatment promoted cell division during the fastest growth stage,which would lead to an increase in cell number and further increases in fruit size.展开更多
基金Supported by Natural Science Foundation of Hainan Province(314161)Special Fund for Agro-scientific Research in the Public Interest(201203092)
文摘The fruit swelling effect of forchlorfenurun （CPPU） and fruit thinning effect of ethychlozate on Tainong 1 mango （Mangifera indica L. cv. ） were studied. Spraying 32 mg/L CPPU at 7 and 21 d post flowering for just once significantly improved the fruit size of mango, but had no significant impact on fruit quality and flavor. Spraying 200 mg/L ethychlozate at 7 d post flowering for just once significantly increased fruit drop rate and single fruit weight of mango; fruit grade was improved and total soluble solid increased to the maximum value, so ethychlozate had good fruit thinning effect.
基金supported by the Program for the National Natural Science Foundation of China(No.31901970).
文摘Kiwifruit is an economically and nutritionally valuable fruit.Forchlorfenuron(CPPU)is widely used to improve fruit set and yield of kiwifruit.However,the mechanism through which CPPU regulates fruit enlargement remains unclear.Physiological and RNA-seq data revealed that the greatest contribution of CPPU treatment to fruit growth occurred at 28 to 42 d after bloom(DAB).CPPU application accelerated sugar metabolism by increasing the content of sucrose through increasing the transcripts of genes such as SUSY,HK,and FK in sucrose metabolism.In the early stages of fruit development,up-regulation of the starch synthesis gene AGPase and the decomposition geneβ-AMY indicated the occurrence of starch turnover.After CPPU treatment,genes related to the synthesis and signal transduction of auxin and gibberellins were downregulated.During the early fruit developmental stage,the cytokinin content and the expression of signal transduction genes were increased.In addition,the expression of cyclin genes,related to cell division,was up-regulated within three weeks after CPPU treatment.This indicates that CPPU treatment promoted cell division during the fastest growth stage,which would lead to an increase in cell number and further increases in fruit size.
