Claim · model-written summary
The cytosolic isoform represented at least 40% of total leaf activity in most closed forest species.
- Taxon
- species typical of closed‐foreste0
- Gene
- cytosolic isoforme0
- Outcome
- total leaf activitye0
- Value
- at least 40%e0
Not reportedMaterialCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionQualifier
Verbatim
e0“in most of the species typical of closed‐forest the cytosolic isoform accounted for at least 40% of total leaf activity”
Title
Inorganic nitrogen assimilation in plants of Austrlian rainforest communities
G. R. Stewart; E. E. Hegarty; R. L. Specht Physiologia Plantarum 1988. doi:10.1111/j.1399-3054.1988.tb04936.x
Other claims from this paper (11)
- Observation Pioneer species had high nitrate reductase levels and chiefly assimilated nitrate in leaves.
- Observation Understorey and overstorey species had low shoot and root nitrate reductase activity.
- Observation Many understorey and overstorey species had little nitrate reduction capacity even with nitrate freely available.
- Observation Closed forest species had lower nitrate reductase levels than gap and forest margin species.
- Observation Closed forest species had similar total nitrogen content to gap and forest margin species.
- Mechanism The authors suggest closed forest species use nitrogen sources other than nitrate ions.
- Observation Glutamine synthetase was present in leaves of every examined species.
- Observation The chloroplastic glutamine synthetase isoform predominated in pioneer leaves.
- Association Low chloroplastic glutamine synthetase levels correlated with low leaf nitrate reduction capacity.
- Association Low chloroplastic glutamine synthetase and nitrate reduction capacity characterized species regenerating in shade.
- Mechanism The authors infer cytosolic glutamine synthetase reassimilates photorespiratory ammonia in some woody plants.