Claim · model-written summary
The succulence and pressure-potential changes indicated enhanced vacuolisation, described as a prerequisite for CAM development.
- Taxon
- Mesembryanthemum crystallinum L.
Mesembryanthemum crystallinume0 - Outcome
- development of CAMe1
- Qualifier
- enhanced vacuolisatione1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mesembryanthemum crystallinum L.”
e1“Instead, these changes displayed enhanced vacuolisation, which is an essential prerequisite for the development of CAM.”
Title
Influence of leaf water content on the C3–CAM transition in Mesembryanthemum crystallinum
WERNER B. HERPPICH; MARGARETHA HERPPICH New Phytologist 1997. doi:10.1046/j.1469-8137.1997.00762.x
Other claims from this paper (14)
- Observation Leaf water content relative to dry mass or organic matter began to decline during the late embryonal phase.
- Intervention effect Salt-stressed plants had lower dry-mass-basis water content than well-watered plants.
- Intervention effect Salt-stressed and well-watered plants did not differ in water content on an organic-matter basis.
- Mechanism Salt treatment did not reduce leaf water content; the dry-mass basis distorted the comparison.
- Mechanism Increased leaf succulence and pressure potential prevented long-term water deficit.
- Mechanism Completion of differentiation might permit nocturnal malic acid accumulation in a threshold response.
- Intervention effect Each salt treatment produced short-term water deficits at onset, independent of plant age.
- Mechanism Incomplete osmotic adaptation explained short-term deficits after salt treatment.
- Observation δ-malate appeared only when plants were about 35 days old.
- Mechanism Short-term water deficit was considered unlikely to be the decisive CAM-inducing factor.
- Observation Water content began to decline during light periods about two weeks after germination in all treatments.
- Observation The daytime water-content decline disappeared after CAM was fully established.
- Mechanism Daytime transpirational water loss was considered unlikely to cause the metabolic shift because it did not induce the shift in young plants.
- Mechanism Environmental stress can induce δ-malate only after sufficient leaf and plant differentiation.