Claim · model-written summary
Increasing chloroplast size decreased mesophyll conductance.
- Taxon
- tobacco
Nicotiana tabacumt0 - Treatment
- Increasing chloroplast sizee0
- Outcome
- mesophyll conductancee0
- Direction
- decreasede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing chloroplast size decreased mesophyll conductance ( g m ) but decreased chloroplast size did not increase g m .”
t0“Several tobacco ( Nicotiana tabacum ) lines”
Title
Is chloroplast size optimal for photosynthetic efficiency?
Katarzyna Głowacka; Johannes Kromdijk; Coralie E. Salesse‐Smith; et al. New Phytologist 2023. doi:10.1111/nph.19091
Other claims from this paper (8)
- Observation Lines with enlarged chloroplasts underperformed on most measured traits.
- Observation Lines with smaller and more numerous chloroplasts had similar efficiency to wild-type tobacco.
- Association Chloroplast size weakly affected leaf light absorptance and light profiles.
- Intervention effect Decreasing chloroplast size did not increase mesophyll conductance.
- Intervention effect Increasing chloroplast size reduced chloroplast movements.
- Intervention effect Increasing chloroplast size enhanced non-photochemical quenching.
- Observation Chloroplasts smaller than wild type appeared no better for field photosynthetic efficiency and productivity.
- Recommendation The authors judged chloroplast size manipulation unlikely to raise photosynthetic efficiency or growth.