Cytokinin deficiency confers enhanced tolerance to mild, but decreased tolerance to severe salinity stress in grown potato.

Cytokinin (CK) is a plant hormone that plays crucial roles in regulating plant growth and development. CK-deficient plants are widely used as model systems for investigating the numerous physiological roles of CK. Since it was previously shown that transgenic or mutant CK-deficient and plants show superior tolerance to salinity, we examined the tolerance of three CK-deficient potato lines overexpressing the () gene to 50 mM, 100 mM, 150 mM, and 200 mM NaCl applied .