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Unraveling a Small Secreted Peptide SUBPEP3 That Positively Regulates Salt-Stress Tolerance in Pyrus betulifolia.
Xu, Chaoran; Xiang, Ling; Huang, Wenting; Zhang, Xiao; Mao, Chong; Wu, Shuang; Li, Tianzhong; Wang, Shengyuan; Wang, Shengnan.
Afiliación
  • Xu C; College of Horticulture, China Agricultural University, Beijing 100080, China.
  • Xiang L; College of Horticulture, China Agricultural University, Beijing 100080, China.
  • Huang W; College of Horticulture, China Agricultural University, Beijing 100080, China.
  • Zhang X; College of Horticulture, China Agricultural University, Beijing 100080, China.
  • Mao C; College of Horticulture, China Agricultural University, Beijing 100080, China.
  • Wu S; College of Horticulture, China Agricultural University, Beijing 100080, China.
  • Li T; College of Horticulture, China Agricultural University, Beijing 100080, China.
  • Wang S; College of Horticulture, China Agricultural University, Beijing 100080, China.
  • Wang S; College of Horticulture, China Agricultural University, Beijing 100080, China.
Int J Mol Sci ; 25(9)2024 Apr 23.
Article en En | MEDLINE | ID: mdl-38731831
ABSTRACT
Small secreted peptides (SSPs) play important roles in regulating plants' growth and development in response to external stimulus, but the genes and functions of SSPs in many species are still unknown. Therefore, it is particularly significant to characterize and annotate SSP genes in plant genomes. As a widely used stock of pears, Pyrus betulifolia has strong resistance to biotic and abiotic stresses. In this study, we analyzed the SSPs genes in the genome of P. betulifolia according to their characteristics and homology. A total of 1195 SSP genes were identified, and most of them are signaling molecules. Among these, we identified a new SSP, subtilase peptide 3 (SUBPEP3), which derived from the PA region of preSUBPEP3, increasing the expression level under salt stress. Both adding synthetic peptide SUBPEP3 to the culture medium of pears and the overexpression of SUBPEP3 in tobacco can improve the salt tolerance of plants. In summary, we annotated the SSP genes in the P. betulifolia genome and identified a small secreted peptide SUBPEP3 that regulates the salt tolerance of P. betulifolia, which provides an important theoretical basis for further revealing the function of SSPs.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Proteínas de Plantas / Regulación de la Expresión Génica de las Plantas / Pyrus / Tolerancia a la Sal Idioma: En Revista: Int J Mol Sci Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Suiza
Texto completo
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Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Proteínas de Plantas / Regulación de la Expresión Génica de las Plantas / Pyrus / Tolerancia a la Sal Idioma: En Revista: Int J Mol Sci Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Suiza