Claim · model-written summary
Hydroxypyruvate reductase and glycolic oxidase were about 3 fold higher in bundle sheath extracts than in mesophyll extracts of Panicum miliaceum when compared on a chlorophyll basis.
- Taxon
- Panicum miliaceum
Panicum miliaceume1 - Organ / stage
- bundle sheath extractse2
- Gene
- hydroxypyruvate reductase and glycolic oxidasee2
- Outcome
- photorespiratory enzymese2
- Direction
- highere2
- Value
- about 3 folde2
- Qualifier
- when compared on a chlorophyll basise2
- Comparator
- mesophyll extractse2
Not reportedMaterialCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the C(4) plant Panicum miliaceum”
e2“The photorespiratory enzymes, hydroxypyruvate reductase and glycolic oxidase, were about 3 fold higher in bundle sheath extracts than in mesophyll extracts when compared on a chlorophyll basis.”
Title
Gerald E. Edwards; Maria Gutierrez PLANT PHYSIOLOGY 1972. doi:10.1104/pp.50.6.728
Other claims from this paper (7)
- Observation In Panicum miliaceum, phosphoenolpyruvate carboxylase and NADP-malic dehydrogenase were localized in mesophyll cells.
- Observation In Panicum miliaceum, carbonic anhydrase was localized in mesophyll cell extracts.
- Observation In Panicum miliaceum, ribose 5-phosphate isomerase, ribulose 5-phosphate kinase and ribulose diphosphate carboxylase were predominantly localized in bundle sheath extracts.
- Observation In Panicum miliaceum, aspartate and alanine transaminases and glyceraldehyde-3-P dehydrogenase were about equally distributed between the photosynthetic cell types.
- Observation Panicum miliaceum had low malic enzyme activity in both mesophyll and bundle sheath extracts.
- Observation Isolated bundle sheath cells of Panicum miliaceum converted aspartate to oxalacetate at rates approaching the aspartate transaminase activity of bundle sheath extracts.
- Observation Isolated bundle sheath cells of Panicum miliaceum showed a light-induced CO2 fixation of 23 mumoles of CO2/mg chl.hr in the absence of exogenous substrates.