6533b829fe1ef96bd128ac10
RESEARCH PRODUCT
Changes of 1-Aminocyclopropane-1-Carboxylic Acid Oxidase Activity in Stressed Pinus Sylvestris Needles
Gederts IevinshG. DreibanteD. Kruzmanesubject
EthyleneMethyl jasmonateChemistryStimulationPlant ScienceHorticulture1-aminocyclopropane-1-carboxylic acid oxidasebehavioral disciplines and activitieschemistry.chemical_compoundBiochemistrySodium bisulfiteEthylene biosynthesisProtein biosynthesisHydrogen peroxidepsychological phenomena and processesdescription
Stimulation of ethylene biosynthesis in pine needles by hydrogen peroxide and sodium bisulfite coincided with the activation of ACC oxidase at the level of protein synthesis. Decrease in ethylene production at high concentrations of sodium bisulfite (above 7 mM) was apparently due to inhibition of ACC oxidase activity. Treatment of pine needles with aminotriazole caused an inhibition of both ethylene production and ACC oxidase activity. Both methylviologen and methyl jasmonate stimulated ACC oxidase activity in a concentration-dependent manner with no parallel changes in ethylene production. The presented results suggest that ACC oxidase plays an important role in regulation of ethylene formation in pine needles in response to different stimuli.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2001-06-01 | Biologia plantarum |