Claim · model-written summary
Wheat shoots regained original moisture content within three days of rehydration and progressively recovered apparently normal metabolism.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- rehydratione0
- Outcome
- original moisture contente0
- Direction
- regainede0
- Qualifier
- within 3 days, during which they progressively recovered apparent normal metabolisme0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e0“Upon rehydration, shoots regained their original moisture content within 3 days, during which they progressively recovered apparent normal metabolism.”
Title
Françoise Corbineau; Patricia Berjak; Norman Pammenter; et al. Physiologia Plantarum 2004. doi:10.1111/j.1399-3054.2004.00351.x
Other claims from this paper (17)
- Intervention effect Young wheat seedlings remained viable after drying reduced shoot moisture to about 0.30 g H 2 O g −1 dry mass.
- Intervention effect Wheat coleoptile and primary leaf growth resumed on rehydration.
- Observation Wheat primary roots died and new roots regenerated.
- Observation Non-dehydrated wheat shoots had moisture content of 4.0–5.0 g H 2 O g −1 DM.
- Observation Non-dehydrated wheat shoots had active metabolism with EC of 0.85 and well-developed organelles.
- Intervention effect Dehydration reduced wheat shoot ACC oxidase activity, already evident after 4–5 hours below about 3.0 g H 2 O g −1 DM moisture.
- Observation Wheat ACC-dependent ethylene production became almost nil at shoot moisture of 1.0 g H 2 O g −1 DM.
- Intervention effect Dehydration decreased wheat ATP and NTP contents to 1–2% of initial values.
- Intervention effect Dehydration decreased wheat EC to 0.20.
- Intervention effect Wheat shoot sucrose increased to a maximum of about 330 mg g −1 DM after two days of drying, three times non-dehydrated levels.
- Intervention effect Wheat cell-wall folding reversed between two and three days of rehydration.
- Observation Rehydrating wheat coleoptile and primary leaf cells showed intensive autophagic activity indicative of damaged-component removal.
- Observation Apparently undamaged organelles and endomembranes persisted in wheat cytoplasm during recovery.
- Observation Wheat restored 60–70% of ACC oxidase activity within 48 hours.
- Observation Wheat restored 80–90% of EC value within 18 hours.
- Observation Wheat ATP/ADP and NTP/ATP ratios remained below non-dehydrated controls, indicating incomplete metabolic repair.
- Mechanism Wheat shoot desiccation tolerance was suggested to involve maintaining cell structure during water loss and repairing dehydration damage.