Abstract
The effect of anoxia on the energy economy of root cells was studied by measuring heat production, ethanol and ATP production, K(+) fluxes and electrical activity in two Vitis species, V. riparia and V. rupestris, that differ in their tolerance to anoxia. Anoxia triggered a marked decrease of metabolic activity (measured by microcalorimetry) and of ATP levels in both species. In V. riparia after the first 2 h of anoxia, the decrease in the rate of heat production was not associated with a further significant decrease in ATP content, whereas in V. rupestris the ATP level continued to decrease until very low values were reached. The concomitant increase in the rate of ethanol production did not compensate for the decreased aerobic ATP supply. In V. rupestris, anoxia typically led to energy deficit and ATP imbalance, together with the subsequent disruption of ion homeostasis and cell death. In V. riparia, the strong decrease in K(+) membrane permeability together with the fast down-regulation of the electrical signals allowed the cells to avoid severe ion imbalances during prolonged anoxic episodes.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 8
Claim · model-written summary
Anoxia decreased metabolic activity in both Vitis species.
VitisNot reportedOrgan / stageComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Anoxia triggered a marked decrease of metabolic activity (measured by microcalorimetry) and of ATP levels in both species.”
e1“two Vitis species, V. riparia and V. rupestris”
Claim · model-written summary
Anoxia decreased ATP levels in both Vitis species.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Anoxia triggered a marked decrease of metabolic activity (measured by microcalorimetry) and of ATP levels in both species.”
e1“two Vitis species, V. riparia and V. rupestris”
Claim · model-written summary
After two hours of anoxia, V. riparia heat production fell without a further significant ATP decrease.
- Taxon
- V. riparia
Vitis ripariae0 - Treatment
- anoxiae0
- Outcome
- rate of heat productione0
- Direction
- decreasee0
- Qualifier
- after the first 2 he0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In V. riparia after the first 2 h of anoxia, the decrease in the rate of heat production was not associated with a further significant decrease in ATP content”
Claim · model-written summary
V. rupestris ATP continued decreasing to very low values.
- Taxon
- V. rupestris
Vitis rupestrise0 - Outcome
- ATP levele0
- Direction
- decreasee0
- Qualifier
- very low valuese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in V. rupestris the ATP level continued to decrease until very low values were reached”
Claim · model-written summary
Ethanol production increased but did not compensate for reduced aerobic ATP supply.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The concomitant increase in the rate of ethanol production did not compensate for the decreased aerobic ATP supply.”
e1“two Vitis species”
Claim · model-written summary
Anoxia in V. rupestris caused energy deficit and ATP imbalance.
- Taxon
- V. rupestrisVitis rupestrise0
- Treatment
- anoxiae0
- Outcome
- energy deficit and ATP imbalancee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In V. rupestris, anoxia typically led to energy deficit and ATP imbalance, together with the subsequent disruption of ion homeostasis and cell death.”
Claim · model-written summary
V. rupestris anoxia was followed by disrupted ion homeostasis and cell death.
- Taxon
- V. rupestrisVitis rupestrise0
- Treatment
- anoxiae0
- Outcome
- disruption of ion homeostasis and cell deathe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In V. rupestris, anoxia typically led to energy deficit and ATP imbalance, together with the subsequent disruption of ion homeostasis and cell death.”
Claim · model-written summary
In V. riparia, lower K(+) permeability and down-regulated electrical signals avoided severe ion imbalance during prolonged anoxia.
- Taxon
- V. ripariaVitis ripariae0
- Treatment
- anoxic episodese0
- Outcome
- severe ion imbalancese0
- Qualifier
- strong decrease in K(+) membrane permeability together with the fast down-regulation of the electrical signalse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In V. riparia, the strong decrease in K(+) membrane permeability together with the fast down-regulation of the electrical signals allowed the cells to avoid severe ion imbalances during prolonged anoxic episodes.”
The same questions in other papers
flooding · molecular: metabolites · VitisPositive and negative results
1 in the opposite direction
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.