In the present study, our results suggested that the carbohydrate
metabolism of self-grafted cucumber seedlings was severely
affected by Ca(NO3)2 stress. Grafting cucumber seedlings with
pumpkin rootstock exhibited a strong ability to resist salt stress,
may due to a higher soluble sugar content and sucrose metabolizing
enzymes. In addition, rootstock-grafting maintain high activities
and alleviates the changes of gene expressions of key
enzymes involved in the glycolytic pathway under Ca(NO3)2 stress,
which would contribute to the supply of continuous ATP and
NAD(P)H, and thus alleviate the inhibition of cucumber seedling
development induced by salt stress.