General information

Mutant name abi1-1
Mutant/Transgenic plant mutant
Ecotype Ler
Mutagenesis type EMS
Dominant/Recessive/Semi-dominant dominant
PMID 7910981 9165752
Commentscreening by germination ABA-insensitive;Nondormantseed; pleiotropic defects in vegetative ABA response;ABA reduced the growth inhibition of mutants

Mutated genes

Locus name Alias Hormone Mutated site Paper description
AT4G26080 ABI1 abscisic acid G180D in the PP2C domain encodes a Calcium ion binding / protein phosphatase type 2C, Facilitates the activation of slow anion channels and stomata closure mediated by abscisic acid (ABA).
AT4G26080 ABI1 ethylene G180D in the PP2C domain encodes a Calcium ion binding / protein phosphatase type 2C, Facilitates the activation of slow anion channels and stomata closure mediated by abscisic acid (ABA).

Phenotype information

Organ AttributeNo hormoneethyleneabscisic acid
Root Primary rootslightly longer than abi2-1 in ABA treatment-slightly longer than abi2-1
Cotyledon/Leaf Stomata aperturelarger--
Silique/Seed Germination rate-increased in ABA treatmentincreased
Loss of seed dormancyreduced dormancy--