Abstract
In time‐course experiments, the amounts of phytoalexin in hypocotyls of the resistant bean cultivar Flor de Mayo were determined after infection with Colletotrichum lindemuthianum . Phaseollin and phaseollidin accumulated as a defence response. However, phaseollidin accumulated earlier than phaseollin and at greater concentrations (155 + 14 compared with 120 + 9 μ g g −1 fresh weight). Phaseollidin was found conjugated as a glucoside in the tissue. Fungal treatment apparently led to a decline of approximately 50% in phaseollidin conjugate after only 7 h after infection. Isolation of vacuoles confirmed the presence of phaseollidin glucosides in this organelle. Treatment of the tissue or isolated protoplasts with a fungal elicitor also produced a decrease, by half, of phaseollidin conjugate concentrations from vacuoles isolated from both sources. The contribution of pre‐existing pools of phaseollidin glycoside to the accumulation of this phytoalexin is discussed.
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Claims 8
Claim · model-written summary
Bean phaseollin accumulated after fungal infection.
- Taxon
- beane1
- Material
- Flor de Mayoe1
- Treatment
- infection with Colletotrichum lindemuthianume0
- Interactor
- Colletotrichum lindemuthianum
Colletotrichum lindemuthianume0pathogen - Outcome
- Phaseolline0
- Direction
- accumulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“after infection with Colletotrichum lindemuthianum . Phaseollin and phaseollidin accumulated as a defence response.”
e1“resistant bean cultivar Flor de Mayo”
Claim · model-written summary
Bean phaseollidin accumulated after fungal infection.
- Taxon
- beane1
- Material
- Flor de Mayoe1
- Treatment
- infection with Colletotrichum lindemuthianume0
- Interactor
- Colletotrichum lindemuthianumColletotrichum lindemuthianume0pathogen
- Outcome
- phaseollidine0
- Direction
- accumulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“after infection with Colletotrichum lindemuthianum . Phaseollin and phaseollidin accumulated as a defence response.”
e1“resistant bean cultivar Flor de Mayo”
Claim · model-written summary
Phaseollidin accumulated earlier than phaseollin in infected bean.
Verbatim
e0“phaseollidin accumulated earlier than phaseollin”
e1“resistant bean cultivar Flor de Mayo”
Claim · model-written summary
Phaseollidin reached greater concentrations than phaseollin, 155 + 14 versus 120 + 9 μ g g −1 fresh weight.
Verbatim
e0“phaseollidin accumulated earlier than phaseollin and at greater concentrations (155 + 14 compared with 120 + 9 μ g g −1 fresh weight)”
e1“resistant bean cultivar Flor de Mayo”
Claim · model-written summary
Phaseollidin occurred as a glucoside in bean tissue.
Not reportedDirection
Verbatim
e0“Phaseollidin was found conjugated as a glucoside in the tissue.”
e1“resistant bean cultivar Flor de Mayo”
Claim · model-written summary
Fungal treatment reduced the bean phaseollidin conjugate about 50% after seven hours.
- Taxon
- beane1
- Treatment
- Fungal treatmente0
- Interactor
- Colletotrichum lindemuthianumColletotrichum lindemuthianume2pathogen
- Outcome
- phaseollidin conjugatee0
- Direction
- declinee0
- Value
- approximately 50%e0
- Qualifier
- after only 7 h after infectione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fungal treatment apparently led to a decline of approximately 50% in phaseollidin conjugate after only 7 h after infection.”
e1“resistant bean cultivar Flor de Mayo”
e2“Colletotrichum lindemuthianum”
Claim · model-written summary
Phaseollidin glucosides were present in bean vacuoles.
Not reportedDirection
Verbatim
e0“Isolation of vacuoles confirmed the presence of phaseollidin glucosides in this organelle.”
e1“resistant bean cultivar Flor de Mayo”
Claim · model-written summary
Fungal elicitor treatment halved phaseollidin conjugate in vacuoles from tissue and protoplasts.
- Taxon
- beane1
- Organ / stage
- vacuolese0
- Treatment
- fungal elicitore0
- Outcome
- phaseollidin conjugate concentrationse0
- Direction
- decreasee0
- Value
- by halfe0
Not reportedComparator
Verbatim
e0“Treatment of the tissue or isolated protoplasts with a fungal elicitor also produced a decrease, by half, of phaseollidin conjugate concentrations from vacuoles isolated from both sources.”
e1“resistant bean cultivar Flor de Mayo”
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See all 13 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.