Claim · model-written summary
Water stress shortened the mesophyll division zone to 4 mm versus 8 mm in controls.
- Taxon
- wheat
Triticum aestivumt0 - Outcome
- length of the zone of mesophyll cell divisione0
- Direction
- reductione0
- Value
- 4 mme0
- Qualifier
- 8 mme0
- Comparator
- control leavese0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was also a reduction in the length of the zone of mesophyll cell division to within 4 mm from the base compared with 8 mm in control leaves.”
t0“Wheat”
Title
Effect of Water Stress on Cell Division and Cdc2-Like Cell Cycle Kinase Activity in Wheat Leaves1
Ute Schuppler; Ping-Hua He; Peter C.L. John; et al. PLANT PHYSIOLOGY 1998. doi:10.1104/pp.117.2.667
Other claims from this paper (9)
- Intervention effect Mild water stress halved wheat leaf elongation within one day.
- Intervention effect Mild water stress reduced mesophyll mitotic activity to 42% of controls within one day.
- Intervention effect Division persisted longer in stressed than control leaves.
- Intervention effect Final cell number in stressed leaves reached 85% of controls.
- Intervention effect Water stress halved H1 histone kinase activity.
- Intervention effect Water stress did not change enzyme abundance.
- Association Reduced kinase activity correlated with more Cdc2-like kinase deactivated by tyrosine phosphorylation.
- Intervention effect Kinase deactivation reached 50% within three hours of stress.
- Mechanism The authors suggest a water-stress signal increases Cdc2 kinase tyrosine phosphorylation, inhibiting the kinase and slowing cell production.