Transcriptomic analysis reveals key factors in fruit ripening and rubbery texture caused by 1-MCP in papaya.

ABSTRACT:

Background

Ethylene promotes fruit ripening whereas 1-methylcyclopropene (1-MCP), a non-toxic antagonist of ethylene, delays fruit ripening via the inhibition of ethylene receptor. However, unsuitable 1-MCP treatment can cause fruit ripening disorders.

Results

In this study, we show that short-term 1-MCP treatment (400 nL•L^- 1, 2 h) significantly delays papaya fruit ripening with normal ripening characteristics. However, long-term 1-MCP treatment (400 nL•L^- 1, 16 h) causes a "rubbery" texture of fruit. The comparative transcriptome analysis showed that a total of 5529 genes were differently expressed during fruit ripening compared to freshly harvested fruits. Comprehensive functional enrichment analysis showed that the metabolic pathways of carbon metab

SUBMITTER: Zhu X 

PROVIDER: S-EPMC6626363 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature