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Horticulturae
Volume 9
Issue 6
10.3390/horticulturae9060654
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Article

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

by
Wenjing Tang
1,†,
Chaoqun Chen
1,†,
Yao Zhang
1,
Yuanqi Chu
1,
Wenlong Yang
1,
Yiling Cui
1,
Guanqiong Kou
1,
Hongxu Chen
1,
Haiyan Song
1,2 and
Ronggao Gong
1,*
1
College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
2
Horticulture Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu 611134, China
*
Author to whom correspondence should be addressed.
†
These authors contributed equally to this work.
Horticulturae 2023, 9(6), 654; https://doi.org/10.3390/horticulturae9060654
Submission received: 8 April 2023 / Revised: 28 May 2023 / Accepted: 29 May 2023 / Published: 1 June 2023
(This article belongs to the Special Issue The Effects of Shade on Crops: From Greenhouse to Agrivoltaic)
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Abstract

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.
Keywords: sweet cherry; low-light stress; quality; transcriptome sweet cherry; low-light stress; quality; transcriptome

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MDPI and ACS Style

Tang, W.; Chen, C.; Zhang, Y.; Chu, Y.; Yang, W.; Cui, Y.; Kou, G.; Chen, H.; Song, H.; Gong, R. Effect of Low-Light Stress on Sugar and Acid Accumulation during Fruit Development and Ripening of Sweet Cherry. Horticulturae 2023, 9, 654. https://doi.org/10.3390/horticulturae9060654

AMA Style

Tang W, Chen C, Zhang Y, Chu Y, Yang W, Cui Y, Kou G, Chen H, Song H, Gong R. Effect of Low-Light Stress on Sugar and Acid Accumulation during Fruit Development and Ripening of Sweet Cherry. Horticulturae. 2023; 9(6):654. https://doi.org/10.3390/horticulturae9060654

Chicago/Turabian Style

Tang, Wenjing, Chaoqun Chen, Yao Zhang, Yuanqi Chu, Wenlong Yang, Yiling Cui, Guanqiong Kou, Hongxu Chen, Haiyan Song, and Ronggao Gong. 2023. "Effect of Low-Light Stress on Sugar and Acid Accumulation during Fruit Development and Ripening of Sweet Cherry" Horticulturae 9, no. 6: 654. https://doi.org/10.3390/horticulturae9060654

APA Style

Tang, W., Chen, C., Zhang, Y., Chu, Y., Yang, W., Cui, Y., Kou, G., Chen, H., Song, H., & Gong, R. (2023). Effect of Low-Light Stress on Sugar and Acid Accumulation during Fruit Development and Ripening of Sweet Cherry. Horticulturae, 9(6), 654. https://doi.org/10.3390/horticulturae9060654

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