General information

Mutant name aba2
Mutant/Transgenic plant mutant
Ecotype Col-0
Mutagenesis type T-DNA insertion_activation tag
Dominant/Recessive/Semi-dominant recessive
PMID 12417697 12692318 8665840
CommentABA deficient; wilty;decreased stress or ABA induction of gene expression;sugar-resistent seedling growth.

Mutated genes

Locus name Alias Hormone Mutated site Paper description
AT1G52340 ABA2/GIN1/ISI1/SIS4/SDR1 abscisic acid inserted in the open reading frame of SDR, S264N encodes a unique Arabidopsis short-chain dehydrogenase/reductase (SDR1) involved in the conversion of xanthoxin to ABA-aldehyde during ABA biosynthesis

Phenotype information

Organ AttributeNo hormoneabscisic acid
Root Lateral rootreduced-
Primary rootshort-
Cotyledon/Leaf Leaf senescenceearlier-
Leaf sizesmall leaves-
Stomata aperturelarger-
Embryo Defective embryo developmentdefective embryo development-
Hypocotyl/Stem Plant heightdwarf, reduced height-
Silique/Seed Germination rate-increased
Loss of seed dormancya reduced dormancy-
Seed shapeabnormal-
Seed yieldfewer seeds-
Silique lengthshort silique-
Stress otherGlc-insensitive mutant,ABA restores the Glc-sensitive phenotype-