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Su J, Li M, Yang H, Shu H, Yu K, Cao H, Xu G, Wang M, Zhu Y, Zhu Y, Ma C, Shao J. Enrichment of grape berries and tomato fruit with health-promoting tartaric acid by expression of the Vitis vinifera transketolase VvTK2 gene. Int J Biol Macromol 2024; 257:128734. [PMID: 38086429 DOI: 10.1016/j.ijbiomac.2023.128734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 12/07/2023] [Accepted: 12/08/2023] [Indexed: 01/27/2024]
Abstract
Tartaric acid (TA) is a major non-fermentable plant soluble acid that abundantly occur in grapes and wines, imparting low pH and tart flavour to berries thereby regulating numerous quality attributes of wine, such as flavour, microbial stability, and aging potential. Evaluation of acidity in mature fruits of 21 wine grape (Vitis vinifera) varieties revealed significant variation between 'Beichun' and 'Gewürztraminer', which was correlated with TA content. RNA-seq analysis of fruits from the two cultivars at different developmental stages revealed that a transketolase gene, VvTK2, was significantly dominantly expressed in the high TA phenotype 'Beichun' variety. Subcellular localization assay showed that VvTK2 protein was located in the chloroplast. Virus-induced VvTK2 gene silencing significantly decreased the expression of 2-keto-L-gulonic acid reductase (Vv2-KGR) as well as L-idonate dehydrogenase (VvL-IdnDH3) and inhibited TA accumulation, while its transient over-expression in grape showed the opposite results. Heterologous VvTK2 over-expression in tomato demonstrated its obvious capacity to induce TA synthesis. Overall, these results highlights a novel role of VvTK2 in modulating TA biosynthesis, which could be an excellent strategy for future genetic improvement of grape flavour.
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Affiliation(s)
- Jing Su
- College of Landscape and Horticulture, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Menghan Li
- College of Landscape and Horticulture, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Huanqi Yang
- College of Landscape and Horticulture, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Helin Shu
- College of Landscape and Horticulture, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Kunmiao Yu
- College of Landscape and Horticulture, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Huiling Cao
- College of Landscape and Horticulture, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Gezhe Xu
- College of Landscape and Horticulture, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Minghui Wang
- College of Landscape and Horticulture, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Yifan Zhu
- College of Plant protection, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Yingan Zhu
- College of Landscape and Horticulture, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Chunhua Ma
- College of Landscape and Horticulture, Yunnan Agricultural University, Kunming 650201, Yunnan, China.
| | - Jianhui Shao
- College of Plant protection, Yunnan Agricultural University, Kunming 650201, Yunnan, China.
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Zhu W, Hu J, Wang X, Tian J, Komatsu S. Organ-Specific Analysis of Mahonia Using Gel-Free/Label-Free Proteomic Technique. J Proteome Res 2015; 14:2669-85. [DOI: 10.1021/acs.jproteome.5b00208] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Wei Zhu
- College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou 310027, China
- National
Institute of Crop Science, National Agriculture and Food Research Organization, Tsukuba 305-8518, Japan
| | - Jin Hu
- College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou 310027, China
| | - Xin Wang
- National
Institute of Crop Science, National Agriculture and Food Research Organization, Tsukuba 305-8518, Japan
| | - Jingkui Tian
- College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou 310027, China
| | - Setsuko Komatsu
- National
Institute of Crop Science, National Agriculture and Food Research Organization, Tsukuba 305-8518, Japan
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