Basic mutant information
Mutant name	old1-1/cpr5
Mutant/Transgenic	mutant
Ecotype	Ler
Mutagenesis type	EMS
(Semi-)Dominant/Recessive	recessive
Description	Lines carrying recessive alleles exhibit early leaf senescence both in air and upon ethylene exposure. The etiolated old1 seedlings exhibited a hypersensitive triple response.
References	1: Jing HC, Sturre MJ, Hille J, Dijkwel PP Arabidopsis onset of leaf death mutants identify a regulatory pathway controlling leaf senescence. Plant J. 2002 Oct;32(1):51-63
Mutated genes
Locus name	AT5G64930
Alias	CPR5/OLD1/HYS1
Organism	Arabidopsis thaliana
Description	A genetic locus involved in leaf senescence in response to ethylene. Lines carrying recessive alleles exhibit early leaf senescence both in air and upon ethylene exposure. The etiolated old1 seedlings exhibited a hypersensitive triple response. Regulator of expression of pathogenesis-related (PR) genes. Participates in signal transduction pathways involved in plant defense (systemic acquired resistance -SAR).
Phenotype information
Others Chlorophyll content low Leaf color yellow Marker gene expression yes