Claim · model-written summary
Control pear leaf water potential and relative water content at turgor loss tended to decline from spring to summer.
- Taxon
- pear trees
_Poirier_Fleurs_et_feuilles.jpg?width=60)
Pyrus communise1 - Organ / stage
- leavese0
- Outcome
- Leaf water potential (Psi(pi) (0)) and relative water content (R(0))e0
- Direction
- decreasee0
Verbatim
e0“Leaf water potential (Psi(pi) (0)) and relative water content (R(0)) at the turgor loss point of control leaves tended to decrease from spring to summer”
e1“pear trees (Pyrus communis L. cv. "Barlett")”
Title
Effects of water stress cycles on turgor maintenance processes in pear leaves (Pyrus communis)
J. Marsal; J. Girona Tree Physiology 1997. doi:10.1093/treephys/17.5.327
Other claims from this paper (7)
- Mechanism Changes in full-turgor osmotic water potential and symplast water fraction did not explain the seasonal decline in turgor-loss water potential.
- Intervention effect Water stress did not change pear leaf osmotic water potential at full turgor.
- Intervention effect Water stress reduced symplast water fraction, especially in summer stress cycles.
- Association Reduced symplast water fraction was correlated with a steeper linear pressure-volume curve.
- Mechanism The coupled adjustment would increase water uptake capacity only without turgor.
- Observation Pear leaves did not actively accumulate solutes.
- Recommendation The authors conclude acclimation of pear leaf water relations is unlikely to sustain fruit productivity under drought.
Mesembryanthemum crystallinum_Armeria_maritima_-_inflorescence.jpg?width=60){kind=small}
Armeria maritima