Basic mutant information
Mutant name	old5
Mutant/Transgenic	mutant
Ecotype	Ler
Mutagenesis type	EMS
(Semi-)Dominant/Recessive	recessive
Description	Note: T-DNA insertion mutant QS-1 (SALK_079205)
References	1: Schippers JH, Nunes-Nesi A, Apetrei R, Hille J, Fernie AR, Dijkwel PP The Arabidopsis onset of leaf death5 mutation of quinolinate synthase affects nicotinamide adenine dinucleotide biosynthesis and causes early ageing. Plant Cell 2008 Oct;20(10):2909-25
Mutated genes
Locus name	AT5G50210
Alias	OLD5/QS/SUFE3
Organism	Arabidopsis thaliana
Description	Encodes an Fe-S binding protein with quinolinate synthase (QS) activity and cysteine desulfurase activator activity, localized in the chloroplast.
Phenotype information
Natural senescence Chlorophyll content low Leaf color yellow Marker gene expression yes