English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

‘Taishanzaoxia’ fruit rapid softening and dehiscence during ripening stage and this process is very sensitive to endogenous ethylene. In this study, we cloned five ethylene signal transcription factors ( ZMdEIL1, ZMdEIL2, ZMdEIL3, ZMdERF1  and  ZMdERF2 ) and one functional gene,  ZMdPG1 , encoding polygalacturonase that could loose the cell connection which associated with fruit firmness decrease and fruit dehiscence to illustrate the reasons for this specific fruit phenotypic and physiological changes. Expression analysis showed that  ZMdERF1  and  ZMdEIL2  transcription were more abundant in ‘Taishanzaoxia’ softening fruit and dehiscent fruit and their expression was inhibited by an ethylene inhibitor 1-methylcyclopropene. Therefore,  ZMdERF1  and  ZMdEIL2  expression were responses to endogenous ethylene and associated with fruit softening and dehiscence.  ZMdPG1  expression was induced when fruit softening and dehiscence but this induction can be blocked by 1-MCP, indicating that  ZMdPG1  was essential for fruit softening and dehiscence and its expression was mediated by the endogenously occurred ethylene.  ZMdPG1  overexpression in  Arabidopsis  led to silique early dehiscence while suppressing  ZMdPG1  expression by antisense  ZMdPG1  prevented silique naturally opening. The result also suggested that  ZMdPG1  related with the connection between cells that contributed to fruit softening and dehiscence.  ZMdERF1  was more closely related with ethylene signaling but it was not directly regulated the  ZMdPG1 , which might be regulated by the synergic pattern of ethylene transcription factors because of both the ZMdERF1 and ZMdERF2 could interact with ZMdEIL2.

Hypersensitive Ethylene Signaling and ZMdPG1 Expression Lead to Fruit Softening and Dehiscence