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Sorbitol metabolism plays a key role in the differential accumulation of sugar in two plum cultivars.
Du, Mei; Gao, Linduo; Ren, Jun; Pan, Xuejun; Zhu, Yongchao.
Afiliación
  • Du M; Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou University, Guiyang, China.
  • Gao L; College of Agriculture/Guizhou Engineering Research Centre for Fruit Crops, Guizhou University, Guiyang, China.
  • Ren J; Qinxian Agricultural Technology Extension Centre, Changzhi, China.
  • Pan X; College of Agriculture/Guizhou Engineering Research Centre for Fruit Crops, Guizhou University, Guiyang, China.
  • Zhu Y; Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou University, Guiyang, China.
Physiol Plant ; 176(4): e14465, 2024.
Article en En | MEDLINE | ID: mdl-39126176
ABSTRACT
Sugar is vital for plant growth and determines fruit quality via its content and composition. This study explores the differential sugar accumulation in two plum varieties, 'Fengtangli (FTL)' and 'Siyueli (SYL)'. The result showed that 'FTL' fruit displayed higher soluble solids and sugar content at various development stages. Metabolomic analysis indicated increased sorbitol in 'FTL', linked to elevated sorbitol-6-phosphate-dehydrogenase (S6PDH) activity. Transcriptome analysis identified a key gene for sorbitol synthesis, PsS6PDH4, which was significantly higher expressed in 'FTL' than in 'SYL'. The function of the PsS6PDH4 gene was verified in strawberry, apple, and plum fruits using transient overexpression and virus-induced gene silencing techniques. The results showed that overexpression of the PsS6PDH4 gene in strawberry, apple, and plum fruits promoted the accumulation of soluble solids content and sorbitol, while inhibition of the gene reduced soluble solids content and sorbitol content. Meanwhile, analysis of the relationship between PsS6PDH4 gene expression, sorbitol, and soluble solids content in four different plum varieties revealed a significant correlation between PsS6PDH4 gene expression and soluble solids content as well as sorbitol content. This research discovered PsS6PDH4 as a crucial regulator of sugar metabolism in plum, with potential applications in improving fruit sweetness and nutritional value in various fruit species. Understanding these molecular pathways can lead to innovative approaches for enhancing fruit quality, benefiting sustainable agriculture and consumer preferences in the global fruit industry.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Proteínas de Plantas / Sorbitol / Regulación de la Expresión Génica de las Plantas / Prunus domestica / Frutas Idioma: En Revista: Physiol Plant Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Dinamarca
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Proteínas de Plantas / Sorbitol / Regulación de la Expresión Génica de las Plantas / Prunus domestica / Frutas Idioma: En Revista: Physiol Plant Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Dinamarca