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Updated: Feb 22, 2026

Isolation and Biophysical Study of Fruit Cuticles

Isolation and Biophysical Study of Fruit Cuticles

Published on: March 30, 2012

A Transcriptome Approach Toward Understanding Fruit Softening in Persimmon.

Jihye Jung^1,2, Sang Chul Choi², Sunghee Jung^2,3

¹Department of Biological Sciences, Korea Advanced Institute of Science and TechnologyDaejeon, South Korea.

Frontiers in Plant Science

|September 29, 2017

Summary

Persimmon fruit softening involves significant transcriptional changes, including increased sugar metabolism and ethylene production, alongside decreased photosynthesis. This study identifies key genes regulating these processes, offering insights for post-harvest technology development.

Keywords:

Diospyros kaki de novo RNA sequencing ethylene persimmon softening transcriptional events

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Area of Science:

Plant Physiology
Molecular Biology
Post-harvest Technology

Background:

Persimmon (Diospyros kaki) is a climacteric fruit that softens rapidly post-harvest.
Transcriptional regulation of persimmon fruit ripening and softening remains largely uncharacterized.

Purpose of the Study:

To investigate the transcriptional landscape of persimmon fruit softening.
To identify differentially expressed genes and metabolic pathways associated with fruit softening.

Main Methods:

High-throughput de novo RNA sequencing of freshly harvested (FH) and softened (ST) persimmon peels.
Illumina HiSeq platform for read generation and transcript assembly.
KEGG pathway analysis, quantitative real-time RT-PCR, and gas chromatography for ethylene monitoring.

Main Results:

Identified 1,790 differentially expressed unigenes between FH and ST persimmon.
Observed up-regulation of amino sugar and nucleotide sugar metabolism pathways in ST fruit.
Detected down-regulation of photosynthesis and carbon fixation pathways, alongside increased ethylene production correlated with softening.

Conclusions:

Key genes regulating persimmon fruit softening, particularly those involved in sugar metabolism, photosynthesis, and ethylene signaling, have been identified.
Transcriptome analysis provides foundational data for developing strategies to delay persimmon fruit softening.