Abstract
Accumulation of phaseollin at sites of point-freezing injury on etiolated hypocotyls of Phaseolus vulgaris occurred in air but was prevented when seedlings were placed in air containing 15% CO 2 immediately after injury. The inhibitory effect was partially overcome when CO 2 -treated seedlings were returned to air. Phaseollin accumulation in 15% CO 2 did occur, however, when injured seedlings were maintained in air for 3–9 h before being transferred to CO 2 , indicating that the sensitivity to CO 2 lies at an early stage of the process leading to phaseollin production. In contrast, phaseollin accumulation at sites of infection of P. vulgaris by an incompatible race of Colletotrichum lindemuthianum was not inhibited by 15% CO 2 . These results indicate that the processes leading to the accumulation of phaseollin at incompatible infection sites and at injury sites may be regulated differently.
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Claims 5
Claim · model-written summary
Immediate exposure to 15% CO2 prevented phaseollin accumulation after freezing injury.
- Taxon
- Phaseolus vulgaris
Phaseolus vulgarise0 - Organ / stage
- etiolated hypocotylse0
- Treatment
- air containing 15% CO 2e0
- Outcome
- Accumulation of phaseolline0
- Direction
- preventede0
- Comparator
- aire0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Accumulation of phaseollin at sites of point-freezing injury on etiolated hypocotyls of Phaseolus vulgaris occurred in air but was prevented when seedlings were placed in air containing 15% CO 2 immediately after injury.”
Claim · model-written summary
Returning CO2 treated seedlings to air partially overcame inhibition.
- Taxon
- Phaseolus vulgarisPhaseolus vulgarist0
- Treatment
- returned to aire0
- Outcome
- inhibitory effecte0
- Direction
- partially overcomee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The inhibitory effect was partially overcome when CO 2 -treated seedlings were returned to air.”
t0“Phaseolus vulgaris”
Claim · model-written summary
Keeping injured seedlings in air for 3–9 h before CO2 transfer allowed phaseollin accumulation.
- Taxon
- Phaseolus vulgarisPhaseolus vulgarist0
- Treatment
- maintained in air for 3–9 h before being transferred to CO 2e0
- Outcome
- Phaseollin accumulatione0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phaseollin accumulation in 15% CO 2 did occur, however, when injured seedlings were maintained in air for 3–9 h before being transferred to CO 2”
t0“Phaseolus vulgaris”
Claim · model-written summary
At incompatible Colletotrichum infection sites, 15% CO2 did not inhibit phaseollin accumulation.
- Taxon
- P. vulgarisPhaseolus vulgarise0
- Treatment
- 15% CO 2e0
- Interactor
- Colletotrichum lindemuthianum
Colletotrichum lindemuthianume0pathogen - Outcome
- phaseollin accumulatione0
- Direction
- not inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“phaseollin accumulation at sites of infection of P. vulgaris by an incompatible race of Colletotrichum lindemuthianum was not inhibited by 15% CO 2.”
Claim · model-written summary
The authors infer different regulation of phaseollin accumulation after infection and injury.
- Taxon
- Phaseolus vulgarisPhaseolus vulgarist0
- Outcome
- accumulation of phaseolline0
- Qualifier
- regulated differentlye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These results indicate that the processes leading to the accumulation of phaseollin at incompatible infection sites and at injury sites may be regulated differently.”
t0“Phaseolus vulgaris”
The same questions in other papers
co2 · molecular: metabolites · Phaseolus vulgaris (common bean)Positive and negative results
1 paper in the same direction as this paper · 7 in the opposite direction
- negative
- negative
- no effect
5 papers more in this group
See all 9 papers →co2 · Colletotrichum lindemuthianum · Phaseolus vulgaris (common bean)Results agree
2 papers in the same direction as this paper
- positive
- 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.