Stimulation of ATPase activity by auxin is dependent on ATP concentration
- PMID: 24253837
- DOI: 10.1007/BF00394568
Stimulation of ATPase activity by auxin is dependent on ATP concentration
Abstract
The effect of auxin on membrane-bound ATPase activity was studied in a plasma membrane-enriched fraction from zucchini hypocotyls. The apparent KM of ATPase activity for ATP was decreased in the presence of 10(-6) M auxin so that at very low ATP concentrations the stimulation of ATPase activity was most obvious. The weak auxin analogue, 2,3-dichlorophenoxyacetic acid, stimulated much less than the active auxin 2,4-dichlorophenoxyacetic acid.
Similar articles
-
The changing sensitivity to auxin of the plasma-membrane H(+)-ATPase: Relationship between plant development and ATPase content of membranes.Planta. 1991 Sep;185(2):227-32. doi: 10.1007/BF00194065. Planta. 1991. PMID: 24186346
-
Stimulation by auxin of phospholipase A in membrane vesicles from an auxin-sensitive tissue is mediated by an auxin receptor.Planta. 1991 Sep;185(2):209-14. doi: 10.1007/BF00194062. Planta. 1991. PMID: 24186343
-
Auxin-stimulated ATPase in membrane fractions from pumpkin hypocotyls (Cucurbita maxima L.).Planta. 1981 May;151(5):434-8. doi: 10.1007/BF00386536. Planta. 1981. PMID: 24302108
-
[Experiments and hypothesis concerning the primary action of auxin in elongation growth].Planta. 1971 Mar;100(1):47-75. doi: 10.1007/BF00386886. Planta. 1971. PMID: 24488103 German.
-
Auxin-Modulated Protein Disulfide-Thiol-Interchange Activity from Soybean Plasma Membranes.Plant Physiol. 1995 Oct;109(2):573-578. doi: 10.1104/pp.109.2.573. Plant Physiol. 1995. PMID: 12228613 Free PMC article.
Cited by
-
The changing sensitivity to auxin of the plasma-membrane H(+)-ATPase: Relationship between plant development and ATPase content of membranes.Planta. 1991 Sep;185(2):227-32. doi: 10.1007/BF00194065. Planta. 1991. PMID: 24186346
-
A new set of regulatory molecules in plants: A plant phospholipid similar to platelet-activating factor stimulates protein kinase and proton-translocating ATPase in membrane vesicles.Planta. 1988 Aug;175(2):241-53. doi: 10.1007/BF00392434. Planta. 1988. PMID: 24221719
-
Stimulation by auxin of phospholipase A in membrane vesicles from an auxin-sensitive tissue is mediated by an auxin receptor.Planta. 1991 Sep;185(2):209-14. doi: 10.1007/BF00194062. Planta. 1991. PMID: 24186343