Claim · model-written summary
Copper stress suppressed catalase activity throughout.
- Taxon
- Brassica juncea
Brassica junceat0 - Treatment
- Cu stresse7
- Outcome
- Catalase activitiese7
- Direction
- suppressede7
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Brassica juncea”
e7“Catalase activities were always suppressed under Cu stress”
Title
Copper-induced stress and antioxidative responses in roots of Brassica juncea L.
Songhua Wang; Zhimin Yang; Hong Yang; et al. Zhōngyāng yánjiūyuàn zhíwùxué huikān/Zhōngyāng yánjiūyuàn zhíwùxué huikān 2004. doi:10.7016/bbas.200407.0203
Other claims from this paper (15)
- Observation Copper was taken up rapidly by the roots as soon as treatment started.
- Intervention effect Cu at 8µM reduced root biomass by 50 percent compared with control.
- Association Cu-induced root growth inhibition paralleled the level of root oxidative damage.
- Intervention effect Cu at 8µM induced a twofold increase in root H2O2 content during the first 4 days.
- Intervention effect H2O2 content declined to the basal level after the first 4 days of Cu treatment.
- Intervention effect Cu at 8µM doubled superoxide dismutase activity during the first 2 days.
- Intervention effect The superoxide dismutase stimulation under Cu lasted 4 days and then declined.
- Intervention effect Cu at 8µM significantly increased ascorbate peroxidase and guaiacol peroxidase activities in roots after the first 4 days.
- Intervention effect Ascorbate peroxidase and guaiacol peroxidase activities in roots were low during the first 4 days of Cu exposure.
- Intervention effect Cu at 8µM generally decreased reduced ascorbate and dehydroascorbate.
- Intervention effect Reduced glutathione content decreased at early stages of Cu treatment.
- Intervention effect Reduced glutathione content was restored to the control level after the early stages of Cu treatment.
- Intervention effect Oxidized glutathione content showed a progressive increase during Cu treatment.
- Observation Total non-protein thiol content increased during the first several days of Cu treatment.
- Observation Total non-protein thiol content declined at later stages of Cu treatment.