Basic mutant information   
Mutant name apt1
Mutant/Transgenic mutant
Ecotype Col-0
Mutagenesis type T-DNA
(Semi-)Dominant/Recessive recessive
Description Loss of APT1 activity in plants leads to excess accumulation of cytokinin bases, thus evoking myriad cytokinin-regulated responses, such as delayed leaf senescence, anthocyanin accumulation, and downstream gene expression.
References
1: Zhang X, Chen Y, Lin X, Hong X, Zhu Y, Li W, He W, An F, Guo H.
Adenine phosphoribosyl transferase 1 is a key enzyme catalyzing cytokinin conversion from nucleobases to nucleotides in Arabidopsis.
Mol Plant. 2013 Sep;6(5):1661-72. doi: 10.1093/mp/sst071. Epub 2013 May 8.

Mutated genes   
Locus name AT1G27450
Alias APT1
Organism Arabidopsis thaliana
Description Adenine phosphoribosyl transferase 1
Phenotype information   
Natural senescenceChlorophyll contenthigh