The invention relates to the technical field of
biology, and discloses application of a cucumber CsTOR
gene in cucumber grafted seedlings, and the cucumber CsTOR
gene has high expression level in tender tissues of root tips, stem tips and male flower buds of cucumbers; subcells of the cucumber CsTOR
gene are localized in a
cell nucleus and a
cell membrane; the cucumber CsTOR gene is used for regulating and controlling the
survival rate of cucumber grafted seedlings. The cucumber-pumpkin grafted seedlings treated by a control group and the TOR inhibitor are further subjected to
transcriptome and
metabolome analysis, and it is found that after the TOR
kinase activity is inhibited, the content of
plant hormone metabolism related genes and hormones is remarkably changed, especially
auxin. The CsTOR-mediated
auxin-regulated
grafting interface healing mechanism research is preliminarily disclosed, and while the research on the
heterologous grafting interface healing mechanism is enriched, theoretical support is provided for creating a rapid healing material and optimizing a grafted cucumber production technology in the future.