Disrupted sugar transport and continued sugar consumption lead to sugar decline in ripe ‘Shixia’ longan fruit
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Le résumé fourni par la source
Longan fruit pulp sugar content and sweetness decline after ripening, which affects fruit quality and postharvest storage. Fruit sugar decline research has focused mainly on fruit physiology and biochemistry. To explore the molecular mechanism underlying sugar decline, we conducted transcriptome and metabolome analyses of ‘Shixia’ longan fruit aril (pulp) tissues at different stages of development. In total, 873 metabolites and 26584 annotated unigenes were identified. Sugar content changes in aril tissues were closely related to gene expression patterns related to starch and sucrose metabolism, such as sucrose phosphate synthase (SPS), invertase (INV), sucrose synthase (SUS), and glucose-6-phosphate isomerase (GPI). Notably, glycolytic pathway gene expression and cellulose and lignin contents increased during the sugar decline stage compared to the sugar accumulation stage. Conversely, sucrose transporter genes, such as DlSWEET2b, DlSWEET10, and DlSWEET12, showed the opposite expression pattern, pointing to reduced sucrose transport during sugar decline. These results indicate that longan fruit sugar decline is likely related to an interruption of sugar input (cessation of sucrose transport to the aril) and continued glycolysis and cellulose/lignin biosynthesis. This provides a new way to delay longan fruit sugar decline, by regulating sugar transport instead of inhibiting respiration.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Disrupted sugar transport and continued sugar consumption lead to sugar decline in ripe ‘Shixia’ longan fruit
- Date Crossref
- 01/01/2024
- Éditeur
- Elsevier BV
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Guangdong Academy of Agricultural Sciences pays non établi dans la noticeOrganisme public
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Ministry of Agriculture and Rural Affairs pays non établi dans la noticeOrganisme public
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Guangdong Provincial Key Laboratory of Tropical and Subtropical Fruit Tree Research pays non établi dans la noticeStructure de recherche
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Institute of Fruit Tree Research pays non établi dans la noticeStructure de recherche
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Key Laboratory of South Subtropical Fruit Biology and Genetic Resource Utilization pays non établi dans la noticeStructure de recherche
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Pingyang Branch of Wenzhou Ecological Environment pays non établi dans la noticeInstitution
Guangdong Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs et Guangdong Provincial Key Laboratory of Tropical and Subtropical Fruit Tree Research, avec 3 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.