Claim · model-written summary
The authors infer that cold acclimation protects chloroplasts, mitochondria and nuclei against heat stress.
- Taxon
- grape plantse0
- Treatment
- CA pretreatmente1
- Outcome
- protect chloroplasts, mitochondria, and the nucleuse1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingDirectionValueQualifier
Verbatim
e0“grape plants (Vitis vinifera L. cv. Jingxiu)”
e1“CA pretreatment can protect chloroplasts, mitochondria, and the nucleus against subsequent heat stress”
Title
Jun-Huan ZHANG; Wei-Dong HUANG; Yue-Ping LIU; et al. Journal of Integrative Plant Biology 2005. doi:10.1111/j.1744-7909.2005.00109.x
Other claims from this paper (18)
- Intervention effect Heat acclimation caused slight mesophyll ultrastructure injury.
- Intervention effect Cold acclimation caused slight mesophyll ultrastructure injury.
- Intervention effect Heat acclimation improved tolerance to later extreme temperature stress.
- Intervention effect Cold acclimation improved tolerance to later extreme temperature stress.
- Intervention effect Pretreatment inhibited increased membrane permeability during temperature stress.
- Intervention effect Pretreatment inhibited increased malondialdehyde concentration during temperature stress.
- Observation Without heat acclimation, chilling markedly damaged mesophyll cells.
- Observation In unacclimated chilled cells, chloroplasts became irregular, stroma lamellae were disordered, and starch granules were absent.
- Observation In unacclimated chilled cells, mitochondrial cristae were disrupted and empty.
- Observation In unacclimated chilled cells, nuclei became irregular and nuclear membranes were digested.
- Intervention effect Heat acclimated mesophyll cells maintained intact ultrastructure under chilling.
- Observation Control mesophyll cells were severely damaged under heat stress.
- Observation Heat stress made control chloroplasts round and stroma lamellae swollen and clumped vacuolar contents.
- Observation Heat stress digested control mitochondrial envelopes and disrupted cristae into vesicles.
- Intervention effect Cold acclimated cells maintained integrated organelles during heat stress.
- Observation After 10 hours of heat stress, cold acclimated chloroplasts became round.
- Mechanism The authors infer that heat acclimation raises mesophyll stability under chilling.
- Mechanism The authors infer that cold acclimation improved grape seedling thermoresistance.