Effect of Low-Light Stress on Sugar and Acid Accumulation during Fruit Development and Ripening of Sweet Cherry

In the production process of sweet cherry, there are unreasonable planting densities and tree shape selections. With increasing tree age, the crown of the tree continues to expand and the tree body is prone to canopy closure, which leads to the inability to efficiently use space and light energy. Lo...

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Main Authors: Wenjing Tang, Chaoqun Chen, Yao Zhang, Yuanqi Chu, Wenlong Yang, Yiling Cui, Guanqiong Kou, Hongxu Chen, Haiyan Song, Ronggao Gong
Format: Article
Language:English
Published: MDPI AG 2023-06-01
Series:Horticulturae
Subjects:
Online Access:https://www.mdpi.com/2311-7524/9/6/654
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author Wenjing Tang
Chaoqun Chen
Yao Zhang
Yuanqi Chu
Wenlong Yang
Yiling Cui
Guanqiong Kou
Hongxu Chen
Haiyan Song
Ronggao Gong
author_facet Wenjing Tang
Chaoqun Chen
Yao Zhang
Yuanqi Chu
Wenlong Yang
Yiling Cui
Guanqiong Kou
Hongxu Chen
Haiyan Song
Ronggao Gong
author_sort Wenjing Tang
collection DOAJ
description In the production process of sweet cherry, there are unreasonable planting densities and tree shape selections. With increasing tree age, the crown of the tree continues to expand and the tree body is prone to canopy closure, which leads to the inability to efficiently use space and light energy. Low-light has become a major limiting factor in the quality of sweet cherry. Therefore, we analyzed the changes of various physiological indicators and the transcriptome of ‘Hongdeng’ sweet cherry under shading treatment in this study to investigate the effects of low-light stress on the photosynthetic characteristics of sweet cherry leaves and fruit physiology and biochemistry. The results showed that shading significantly reduces the light capture capacity of leaves, damages the photosystem, reduces carbon assimilation capacity, and consumes the majority of the captured light energy as photochemical energy, thereby restricting the growth and development of leaves and reducing the accumulation of nutrients in fruits. Shading significantly reduced fruit weight, sugar content, and vitamin C content at maturity and significantly increased acid content. Transcriptomic data demonstrated that low-light stress produces a large number of differential genes related to carbon metabolism, organic acid metabolism, and stress resistance, thereby suggesting that low-light stress may affect the expression of these related genes and inclusions in the fruit. The results of this study will provide theoretical and technical support for the physiological response mechanism of low-light tolerance in sweet cherry, the selection and breeding of low-light tolerant sweet cherry varieties, and the cultivation of sweet cherry in facilities.
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spelling doaj.art-a1fb6d7df46a40a6b6c901b2a7ff0e262023-11-18T10:40:46ZengMDPI AGHorticulturae2311-75242023-06-019665410.3390/horticulturae9060654Effect of Low-Light Stress on Sugar and Acid Accumulation during Fruit Development and Ripening of Sweet CherryWenjing Tang0Chaoqun Chen1Yao Zhang2Yuanqi Chu3Wenlong Yang4Yiling Cui5Guanqiong Kou6Hongxu Chen7Haiyan Song8Ronggao Gong9College of Horticulture, Sichuan Agricultural University, Chengdu 611130, ChinaCollege of Horticulture, Sichuan Agricultural University, Chengdu 611130, ChinaCollege of Horticulture, Sichuan Agricultural University, Chengdu 611130, ChinaCollege of Horticulture, Sichuan Agricultural University, Chengdu 611130, ChinaCollege of Horticulture, Sichuan Agricultural University, Chengdu 611130, ChinaCollege of Horticulture, Sichuan Agricultural University, Chengdu 611130, ChinaCollege of Horticulture, Sichuan Agricultural University, Chengdu 611130, ChinaCollege of Horticulture, Sichuan Agricultural University, Chengdu 611130, ChinaCollege of Horticulture, Sichuan Agricultural University, Chengdu 611130, ChinaCollege of Horticulture, Sichuan Agricultural University, Chengdu 611130, ChinaIn the production process of sweet cherry, there are unreasonable planting densities and tree shape selections. With increasing tree age, the crown of the tree continues to expand and the tree body is prone to canopy closure, which leads to the inability to efficiently use space and light energy. Low-light has become a major limiting factor in the quality of sweet cherry. Therefore, we analyzed the changes of various physiological indicators and the transcriptome of ‘Hongdeng’ sweet cherry under shading treatment in this study to investigate the effects of low-light stress on the photosynthetic characteristics of sweet cherry leaves and fruit physiology and biochemistry. The results showed that shading significantly reduces the light capture capacity of leaves, damages the photosystem, reduces carbon assimilation capacity, and consumes the majority of the captured light energy as photochemical energy, thereby restricting the growth and development of leaves and reducing the accumulation of nutrients in fruits. Shading significantly reduced fruit weight, sugar content, and vitamin C content at maturity and significantly increased acid content. Transcriptomic data demonstrated that low-light stress produces a large number of differential genes related to carbon metabolism, organic acid metabolism, and stress resistance, thereby suggesting that low-light stress may affect the expression of these related genes and inclusions in the fruit. The results of this study will provide theoretical and technical support for the physiological response mechanism of low-light tolerance in sweet cherry, the selection and breeding of low-light tolerant sweet cherry varieties, and the cultivation of sweet cherry in facilities.https://www.mdpi.com/2311-7524/9/6/654sweet cherrylow-light stressqualitytranscriptome
spellingShingle Wenjing Tang
Chaoqun Chen
Yao Zhang
Yuanqi Chu
Wenlong Yang
Yiling Cui
Guanqiong Kou
Hongxu Chen
Haiyan Song
Ronggao Gong
Effect of Low-Light Stress on Sugar and Acid Accumulation during Fruit Development and Ripening of Sweet Cherry
Horticulturae
sweet cherry
low-light stress
quality
transcriptome
title Effect of Low-Light Stress on Sugar and Acid Accumulation during Fruit Development and Ripening of Sweet Cherry
title_full Effect of Low-Light Stress on Sugar and Acid Accumulation during Fruit Development and Ripening of Sweet Cherry
title_fullStr Effect of Low-Light Stress on Sugar and Acid Accumulation during Fruit Development and Ripening of Sweet Cherry
title_full_unstemmed Effect of Low-Light Stress on Sugar and Acid Accumulation during Fruit Development and Ripening of Sweet Cherry
title_short Effect of Low-Light Stress on Sugar and Acid Accumulation during Fruit Development and Ripening of Sweet Cherry
title_sort effect of low light stress on sugar and acid accumulation during fruit development and ripening of sweet cherry
topic sweet cherry
low-light stress
quality
transcriptome
url https://www.mdpi.com/2311-7524/9/6/654
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