Application of benzothiadiazole to Cabernet Gernischt grapes (Vitis vinifera L.) for quality improvement : Effects on aroma metabolism precursors and related genes expression

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Pre-harvest spraying of benzothiadiazole (BTH) can improve the winemaking properties of grapes, especially their aroma compounds and phenolics. Limited research has explored the molecular mechanisms by which BTH influences the accumulation of grape aroma precursors during early grape development. This study investigated the effects and putative molecular mechanisms of applying 0.37 mM BTH through whole-plant spraying on the accumulation of aroma metabolism precursors and gene expression in Cabernet Gernischt grapes during ripening. The results showed that BTH treatment increased the levels of fructose, alanine, aspartate, threonine, myristic acid, myristoleic acid, palmitic acid, β-cryptoxanthin, norisoprenoids and methoxypyrazines. Contrarily, it decreased the levels of glucose, sucrose, phenylalanine, tyrosine, leucine, valine, glycine, arginine, histidine, total unsaturated fatty acids (particularly linoleic acid), zeaxanthin, lutein, and organic acids. Additionally, BTH upregulated the expression of genes associated with the production and degradation of amino acids, fatty acids, and carotenoids while decreasing the expression of genes involved in the synthesis and degradation of soluble sugars and organic acids. Ten different metabolites, including fumaric acid, were identified as potential biological markers for distinguishing BTH-treated grapes from control grapes. The study demonstrates that BTH treatment had a substantial impact on the concentration and developmental patterns of aroma metabolism precursors. Furthermore, it altered the winemaking characteristics of Cabernet Gernischt grapes by modulating genes associated with the production and breakdown of metabolites.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:208

Enthalten in:

Plant physiology and biochemistry : PPB - 208(2024) vom: 15. März, Seite 108537

Sprache:

Englisch

Beteiligte Personen:

Wang, Jianfeng [VerfasserIn]
Han, Yuqi [VerfasserIn]
Sam, Faisal Eudes [VerfasserIn]
Wang, Qihui [VerfasserIn]
Zhang, Bo [VerfasserIn]
Ma, Tengzhen [VerfasserIn]
Li, Jixin [VerfasserIn]
Feng, Lidan [VerfasserIn]
Jiang, Yumei [VerfasserIn]

Links:

Volltext

Themen:

273-77-8
Aroma metabolism precursors
Benzo-1,2,3-thiadiazole
Benzothiadiazole
Cabernet Gernischt grapes
Correlation analysis
Genes
Journal Article
Quantitative real-time polymerase chain reaction
Thiadiazoles

Anmerkungen:

Date Completed 01.04.2024

Date Revised 01.04.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.plaphy.2024.108537

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM370030915