Abstract
Mitochondria were isolated from etiolated corn shoots (Zea mays L.) that were stressed to a measured water potential. The rates of mitochondrial respiration in state III, state IV, and without phosphate or ADP on a milligram protein basis decreased as water stress increased with succinate, malatepyruvate, or reduced nicotinamide adenine dinucleotide as substrates. Coupling (as determined by respiratory control and ADP/O ratios) did not decrease with increasing water stress. At water potentials greater than -35 bars all respiration had ceased.
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Claims 3
Claim · model-written summary
Mitochondrial respiration rates decreased as water stress increased, with succinate, malate-pyruvate or NADH as substrates.
- Taxon
- corn
Zea mays subsp. mayse0 - Organ / stage
- etiolated corn shootse0
- Treatment
- water stresse1
- Outcome
- rates of mitochondrial respiratione1
- Direction
- decreasede1
- Qualifier
- succinate, malatepyruvate, or reduced nicotinamide adenine dinucleotide as substratese1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mitochondria were isolated from etiolated corn shoots (Zea mays L.) that were stressed to a measured water potential”
e1“The rates of mitochondrial respiration in state III, state IV, and without phosphate or ADP on a milligram protein basis decreased as water stress increased with succinate, malatepyruvate, or reduced nicotinamide adenine dinucleotide as substrates”
Claim · model-written summary
Coupling of mitochondria did not decrease with increasing water stress.
- Taxon
- cornZea mays subsp. mayse0
- Organ / stage
- etiolated corn shootse0
- Treatment
- increasing water stresse2
- Outcome
- Coupling (as determined by respiratory control and ADP/O ratios)e2
- Direction
- did not decreasee2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mitochondria were isolated from etiolated corn shoots (Zea mays L.) that were stressed to a measured water potential”
e2“Coupling (as determined by respiratory control and ADP/O ratios) did not decrease with increasing water stress”
Claim · model-written summary
All mitochondrial respiration ceased at water potentials greater than -35 bars.
- Taxon
- cornZea mays subsp. mayse0
- Organ / stage
- etiolated corn shootse0
- Treatment
- water potentials greater than -35 barse3
- Outcome
- all respiration had ceasede3
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mitochondria were isolated from etiolated corn shoots (Zea mays L.) that were stressed to a measured water potential”
e3“At water potentials greater than -35 bars all respiration had ceased”
The same questions in other papers
drought · control · Zea mays (maize)Positive and negative results
1 in the opposite direction
- positive
drought · physiology: respiration · Zea mays (maize)Results agree
4 papers in the same direction as this paper
- no effect
- negative
- negative
1 paper more in this group
See all 5 papers →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.