NASC

NASC ID: N3838

Name: abscisic acid insensitive

ABRC stock number: CS3838

Description: Hormone

Donation Date: 2001-04-13

Donated by:

Rice University Sue Gibson

Donor Number: SG1433

Stock type: individual line

Material type: seed

Status	Price (£)
Available	£11.00

Germplasm Info

Seed type: Point Mutation

Mutagen: ethylmethane sulfonate

Background: Col(gl1)

Associated Polymorphisms

When available, select a locus to display it at the AIP or view the EMBL record at the EBI.

Gene:	Allele:	Locus:	AGI code:
	abi4-103	abi4

Phenotype

abscisic acid resistant, reduced sensitivity to ABA inhibition of germination, germinates in the presence of 5 microM ABA; dormancy response appears to be as expected for abi4; reduced sensitivity to the inhibitory effects of sugars on early seedling development, germinates and forms seedlings with expanded cotyledons and true leaves on concentrations of glucose (0.3 M) , sucrose (0.3 M), mannose (2mM) or sorbitol (0.4 M) that inhibit these processes in wt plants; decreased sensitivity to the presence of the GA biosynthesis inhibitor paclobutrazol (35 mg/L ); does not exhibit compromised water relations, not wilty; lacks trichomes on stems and leaves, some trichomes in leaf margins; same as sis5-3.

References

Laby, R.J. et al. 2000. The Arabidopsis sugar-insensitive mutants sis4 and sis5 are defective in abscisic acid synthesis and response. The Plant journal 23(5):587-96.PubMed ID: 10972885.