Claim · model-written summary
More than 90% of mutant plants in the M7 and M8 generations had enhanced catalase activity.
- Taxon
- Tobacco (Nicotiana tabacum)
Nicotiana tabacume1 - Outcome
- enhanced catalase activitye2
- Value
- More than 90%e2
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Tobacco (Nicotiana tabacum) mutants with 40 to 50% more catalase activity than wild type show O(2)-resistant photosynthesis under conditions of high photorespiration”
e2“More than 90% of the population of mutant plants of an M(7) and M(8) generation had enhanced catalase activity”
Title
Israel Zelitch PLANT PHYSIOLOGY 1992. doi:10.1104/pp.98.4.1330
Other claims from this paper (11)
- Intervention effect The tobacco catalase mutant shows O2-resistant photosynthesis under high photorespiration, unlike wild type.
- Association Tobacco mutants have 40 to 50% more catalase activity than wild type.
- Observation Nearly 40% of mutant plants had catalase activities more than 3 standard deviations above the wild-type mean.
- Intervention effect Superoxide dismutase activity was the same in the mutant and wild type.
- Intervention effect Field-grown mutant plants had a significantly higher photosynthetic rate than wild type.
- Intervention effect The tip region of expanding mutant leaves had higher catalase activity than the base of the lamina.
- Intervention effect Photosynthesis in the tip of mutant leaves was O2 resistant at 42% O2, compared with the base.
- Intervention effect Plants grown in high light had greater catalase activity than plants grown in low light.
- Intervention effect The mutant-to-wild-type catalase activity ratio was 1.45 in high light compared with 1.22 in low light.
- Intervention effect After transfer from low to high light, the mutant-to-wild-type activity ratio became the same as in plants acclimated in higher light after 5 days.
- Intervention effect Plants transferred from low to high light showed increasing catalase activities after acclimation.