TY - BOOK AU - Avalbaev,Azamat AU - Yuldashev, Ruslan AU - Fedorova, Kristina AU - Somov, Kirill AU - Vysotskaya, Lidiya AU - Allagulova, Chulpan AU - Shakirova, Farida TI - Exogenous methyl jasmonate regulates cytokinin content by modulating cytokinin oxidase activity in wheat seedlings under salinity SN - 0176-1617 AV - QK711.2 JOU PY - 2016/// CY - Amsterdam PB - Elsevier GmbH KW - Methyl jasmonate KW - Cytokinin KW - Cytokinin oxidase N2 - The treatment of 4-days-old wheat seedlings with methyl jasmonate (MeJA) in concentration optimal for their growth (0.1 μM) resulted in a rapid transient almost two-fold increase in the level of cytokinins (CKs). MeJA-induced accumulation of CKs was due to inhibition of both cytokinin oxidase (CKX) (cytokinin oxidase/dehydrogenase, EC 1.5.99.12) gene expression and activity of this enzyme. Pretreatment of wheat seedlings with MeJA decreased the growth-retarding effect of sodium chloride salinity and accelerated growth recovery after withdrawal of NaCl from the incubation medium. We speculate that this protective effect of the hormone might be due to MeJA's ability to prevent the salinity-induced decline in CK concentration that was caused by inhibition of gene expression and activity of CKX in wheat seedlings. The data might indicate an important role for endogenous cytokinins in the implementation of growth-promoting and protective effects of exogenous MeJA application on wheat plants UR - https://doi.org/10.1016/j.jplph.2015.11.013 ER -