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Sugar transporters PpSWEET9a and PpSWEET14 synergistically mediate peach sucrose allocation from source leaves to fruit.
Luo, Min; Jia, Mengxiao; Pan, Lin; Chen, Weifeng; Zhou, Kun; Xi, Wanpeng.
Afiliación
  • Luo M; College of Horticulture and Landscape Architecture/ Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Southwest University, Chongqing, China.
  • Jia M; College of Horticulture and Landscape Architecture/ Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Southwest University, Chongqing, China.
  • Pan L; College of Horticulture and Landscape Architecture/ Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Southwest University, Chongqing, China.
  • Chen W; Hunan Horticultural Research Institute, Hunan Academy of Agricultural Sciences, Changsha, China. weifengchen88@hunaas.cn.
  • Zhou K; College of Horticulture and Landscape Architecture/ Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Southwest University, Chongqing, China. zhoukun881016@163.com.
  • Xi W; College of Horticulture and Landscape Architecture/ Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Southwest University, Chongqing, China. xwp1999@zju.edu.cn.
Commun Biol ; 7(1): 1068, 2024 Aug 30.
Article en En | MEDLINE | ID: mdl-39215048
ABSTRACT
Sugar content is a critical indicator of fruit quality and is mainly controlled by sugar transporters. Sugars will eventually be exported transporters (SWEET) proteins play an indispensable role in sugar allocation between and within plant organs. Sucrose is the major sugar in many fruits and the predominant form of sugar translocated in peach (Prunus persica). However, the role of the multiple peach SWEET genes in sucrose allocation to fruit remains elusive. In this study, a total of 19 SWEET candidates have been identified in the peach genome, and two Clade III SWEET genes, PpSWEET9a and PpSWEET14, are found to be highly expressed in mature source leaves and branches. Complementation assays, transgene manipulations, and protein interaction studies reveal that PpSWEET9a and PpSWEET14 serve as sucrose efflux proteins and form a heterooligomer that synergistically directs sucrose allocation from source leaves to fruits. Our findings provide insights into the effect of SWEETs on sugar accumulation in peach fruit and identify genetic candidates for improving fruit quality.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Proteínas de Plantas / Sacarosa / Hojas de la Planta / Regulación de la Expresión Génica de las Plantas / Prunus persica / Frutas Idioma: En Revista: Commun Biol Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Proteínas de Plantas / Sacarosa / Hojas de la Planta / Regulación de la Expresión Génica de las Plantas / Prunus persica / Frutas Idioma: En Revista: Commun Biol Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido