Ef fect of tem per a ture stress on the en dog e nous cytokinin con tent in Arabidopsis thaliana (L.) Heynh plants

), were com pared us ingen zyme immunoassay (ELISA). Cytokinin con tent was mea -sured af ter ex po sure to low (4 °C for 24 h in dark ness) or hightem per a ture (38 °C for 24 h in dark ness). Mea sure ments wereper formed im me di ately and 24, 48 and 120 h af ter treat ments.It was found that at nor mal growth con di tions