Effects of Potassium-Containing Fertilizers on Sugar and Organic Acid Metabolism in Grape Fruits
To identify suitable potassium fertilizers for grape (<i>Vitis vinifera</i> L.) production and study their mechanism of action, the effects of four potassium-containing fertilizers (complex fertilizer, potassium nitrate, potassium sulfate, and potassium dihydrogen phosphate) on sugar and...
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MDPI AG
2024-02-01
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| Series: | International Journal of Molecular Sciences |
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| Online Access: | https://www.mdpi.com/1422-0067/25/5/2828 |
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| author | Jin Wang Yuhang Lu Xuemei Zhang Wenjie Hu Lijin Lin Qunxian Deng Hui Xia Dong Liang Xiulan Lv |
| author_facet | Jin Wang Yuhang Lu Xuemei Zhang Wenjie Hu Lijin Lin Qunxian Deng Hui Xia Dong Liang Xiulan Lv |
| author_sort | Jin Wang |
| collection | DOAJ |
| description | To identify suitable potassium fertilizers for grape (<i>Vitis vinifera</i> L.) production and study their mechanism of action, the effects of four potassium-containing fertilizers (complex fertilizer, potassium nitrate, potassium sulfate, and potassium dihydrogen phosphate) on sugar and organic acid metabolism in grape fruits were investigated. Potassium-containing fertilizers increased the activity of sugar and organic acid metabolism-related enzymes at all stages of grape fruit development. During the later stages of fruit development, potassium-containing fertilizers increased the total soluble solid content and the sugar content of the different sugar fractions and decreased the titratable acid content and organic acid content of the different organic acid fractions. At the ripening stage of grape fruit, compared with the control, complex fertilizer, potassium nitrate, potassium sulfate, and potassium dihydrogen phosphate increased the total soluble solid content by 1.5, 1.2, 3.5, and 3.4 percentage points, decreased the titratable acid content by 0.09, 0.06, 0.18, and 0.17 percentage points, respectively, and also increased the total potassium content in grape fruits to a certain degree. Transcriptome analysis of the differentially expressed genes (DEGs) in the berries showed that applying potassium-containing fertilizers enriched the genes in pathways involved in fruit quality, namely, carbon metabolism, carbon fixation in photosynthetic organisms, glycolysis and gluconeogenesis, and fructose and mannose metabolism. Potassium-containing fertilizers affected the expression levels of genes regulating sugar metabolism and potassium ion uptake and transport. Overall, potassium-containing fertilizers can promote sugar accumulation and reduce acid accumulation in grape fruits, and potassium sulfate and potassium dihydrogen phosphate had the best effects among the fertilizers tested. |
| first_indexed | 2024-04-25T00:28:18Z |
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| language | English |
| last_indexed | 2024-04-25T00:28:18Z |
| publishDate | 2024-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | International Journal of Molecular Sciences |
| spelling | doaj.art-e103413bb9404866ba172a5acd9a58ab2024-03-12T16:46:28ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672024-02-01255282810.3390/ijms25052828Effects of Potassium-Containing Fertilizers on Sugar and Organic Acid Metabolism in Grape FruitsJin Wang0Yuhang Lu1Xuemei Zhang2Wenjie Hu3Lijin Lin4Qunxian Deng5Hui Xia6Dong Liang7Xiulan Lv8College 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 Science, Sichuan Agricultural University, Ya’an 625014, 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, ChinaTo identify suitable potassium fertilizers for grape (<i>Vitis vinifera</i> L.) production and study their mechanism of action, the effects of four potassium-containing fertilizers (complex fertilizer, potassium nitrate, potassium sulfate, and potassium dihydrogen phosphate) on sugar and organic acid metabolism in grape fruits were investigated. Potassium-containing fertilizers increased the activity of sugar and organic acid metabolism-related enzymes at all stages of grape fruit development. During the later stages of fruit development, potassium-containing fertilizers increased the total soluble solid content and the sugar content of the different sugar fractions and decreased the titratable acid content and organic acid content of the different organic acid fractions. At the ripening stage of grape fruit, compared with the control, complex fertilizer, potassium nitrate, potassium sulfate, and potassium dihydrogen phosphate increased the total soluble solid content by 1.5, 1.2, 3.5, and 3.4 percentage points, decreased the titratable acid content by 0.09, 0.06, 0.18, and 0.17 percentage points, respectively, and also increased the total potassium content in grape fruits to a certain degree. Transcriptome analysis of the differentially expressed genes (DEGs) in the berries showed that applying potassium-containing fertilizers enriched the genes in pathways involved in fruit quality, namely, carbon metabolism, carbon fixation in photosynthetic organisms, glycolysis and gluconeogenesis, and fructose and mannose metabolism. Potassium-containing fertilizers affected the expression levels of genes regulating sugar metabolism and potassium ion uptake and transport. Overall, potassium-containing fertilizers can promote sugar accumulation and reduce acid accumulation in grape fruits, and potassium sulfate and potassium dihydrogen phosphate had the best effects among the fertilizers tested.https://www.mdpi.com/1422-0067/25/5/2828fruitspotassiumqualitytranscriptome analysis |
| spellingShingle | Jin Wang Yuhang Lu Xuemei Zhang Wenjie Hu Lijin Lin Qunxian Deng Hui Xia Dong Liang Xiulan Lv Effects of Potassium-Containing Fertilizers on Sugar and Organic Acid Metabolism in Grape Fruits International Journal of Molecular Sciences fruits potassium quality transcriptome analysis |
| title | Effects of Potassium-Containing Fertilizers on Sugar and Organic Acid Metabolism in Grape Fruits |
| title_full | Effects of Potassium-Containing Fertilizers on Sugar and Organic Acid Metabolism in Grape Fruits |
| title_fullStr | Effects of Potassium-Containing Fertilizers on Sugar and Organic Acid Metabolism in Grape Fruits |
| title_full_unstemmed | Effects of Potassium-Containing Fertilizers on Sugar and Organic Acid Metabolism in Grape Fruits |
| title_short | Effects of Potassium-Containing Fertilizers on Sugar and Organic Acid Metabolism in Grape Fruits |
| title_sort | effects of potassium containing fertilizers on sugar and organic acid metabolism in grape fruits |
| topic | fruits potassium quality transcriptome analysis |
| url | https://www.mdpi.com/1422-0067/25/5/2828 |
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