Mutant Name: ixr2-1

Gene Name CesA6
Protein Name Cellulose synthase
Mutagen EMS
Category forward genetics
Organism Arabidopsis thaliana
Ecotype Col
Donor
General Description 1. The mutant has resistance against the herbicide isoxaben.
2. The mutation is semi-dominant;wildtype plants transformed by IXR2-1 show reduced sensitivity to isoxaben.
3. The mutation is an allele of prc1; it has a R1064W amino acid change that delimits the C-terminal end of the 8th predicted transmembrane anchor of CESA6.
Organ Specificity
Impact on Wall
Impact on Sugar Composition
Reference 1. Heim DR, Roberts JL, Pike PD, Larrinua IM (1990a) A second locus, Ixr B1 in Arabidopsis thaliana, that confers resistance to herbicide isoxaben. Plant Physiol 92: 858-861.

2.Thierry Desprez, Samantha Vernhettes, Mathilde Fagard, Guislaine Refrégier, Thierry Desnos, Estelle Aletti, Nicolas Py, Sandra Pelletier, and Herman Höfte. Resistance against Herbicide Isoxaben and Cellulose Deficiency Caused by Distinct Mutations in Same Cellulose Synthase Isoform CESA6. Plant Physiol. 2002 128: 482-490.