EC Number   |
General Information |
Reference |
|---|
   3.2.1.175 | malfunction |
atbg1 plants exhibit abscisate deficiency and show decreased seed abscisate levels and a slightly decreased level of dehydration induced abscisate accumulation |
708254 |
| 3.2.1.175 | malfunction |
loss of AtBG1 causes defective stomatal movement, early germination, abiotic stress-sensitive phenotypes, and lower abscisate levels, whereas plants with ectopic AtBG1 accumulate higher abscisate levels and display enhanced tolerance to abiotic stress |
708075 |
| 3.2.1.175 | malfunction |
multiple Arabidopsis thaliana bg2 alleles with a T-DNA insertion in BG2 are more sensitive to dehydration and NaCl stress compared to the wild-type enzyme, whereas BG2 overexpression results in enhanced resistance to dehydration and NaCl stress |
-, 732628 |
| 3.2.1.175 | metabolism |
abscisic acid is a phytohormone critical for plant growth. Dehydration rapidly induces polymerization of the beta-D-glucopyranosyl abscisate hydrolyzing enzyme AtBG1, resulting in a 4fold increase in enzymatic activity. Diurnal increases in abscisate levels are attributable to polymerization-mediated AtBG1 activation. Activation of inactive abscisate pools by polymerized AtBG1 is a mechanism by which plants rapidly adjust abscisate levels and respond to changing environmental cues |
708075 |
| 3.2.1.175 | physiological function |
in addition to the de novo biosynthesis, abscisic acid is produced in multiple organelles by organelle-specific beta-glucosidases in response to abiotic stresses. BG2 increases abscisic acid levels in protoplasts upon application of exogenous Glc-conjugated abscisic acid |
-, 732628 |
| 3.2.1.175 | physiological function |
in Arabidopsis thaliana, abscisic acid levels are increased both through de novo biosynthesis and via beta-glucosidase homolog 1-mediated hydrolysis of Glc-conjugated abscisic acid. In addition to the de novo biosynthesis, abscisic acid is produced in multiple organelles by organelle-specific beta-glucosidases in response to abiotic stresses |
-, 732628 |
| 3.2.1.175 | physiological function |
the Arabidopsis beta-glucosidase AtBG1 hydrolyzes glucose-conjugated, biologically inactive abscisic acid to produce active abscisic acid, which increases the level of abscisic acid in plants. The phytohormone abscisic acid is critical for growth, development, and survival of plants in response to environmental stresses |
732625 |
