the mutant retains an unchanged pattern of selectivity to variously substituted ureas but it is much more susceptible to the inhibition by phenylureas as IC50 values are 10-50times lower than those for wild type enzyme
overexpression of the AtCKX genes in tobacco leading to shoot senescence, an increase of the root meristem zone, and enhanced formation of lateral roots
transgenic tobacco plants overexpressing HvCKX2 show a very strong phenotype of cytokinin deficiency with shorter interndes, highly increased formation of roots, and a dwarf growth habit, and died without producing seeds
transgenic tobacco plants overexpressing HvCKX2 show a very strong phenotype of cytokinin deficiency with shorter interndes, highly increased formation of roots, and a dwarf growth habit, and died without producing seeds
transgenic tobacco plants overexpressing HvCKX2 show a very strong phenotype of cytokinin deficiency with shorter interndes, highly increased formation of roots, and a dwarf growth habit, and died without producing seeds
transgenic tobacco plants overexpressing HvCKX2 show a very strong phenotype of cytokinin deficiency with shorter interndes, highly increased formation of roots, and a dwarf growth habit, and died without producing seeds
construction of transgenic tobacco plants conditionally overexpressing isopentenyltransferase IPT, tetracycline-induced derepressing of the IPT transcription, results in enhanced cytokinin oxidase activity