Abstract
SUMMARY Wyerone acid was produced by leaves of Vicia faba in response to infection by both Botrytis cinerea and B.fabae. Host cell death caused by either fungus appeared to be the trigger for rapid wyerone acid synthesis, although the phytoalexin was not confined to brown cells. At B. cinerea inoculation sites wyerone acid concentration increased rapidly, at the time of fungal invasion of the epidermis, to levels greater than that completely inhibitory to mycelial growth. Wyerone acid is therefore probably the primary cause of the inhibition of B. cinerea within infected tissue. The partial blackening of B.fabae inoculation sites and surrounding peripheral tissues was accompanied by an increase in wyerone acid. There followed a striking decrease as tissues became completely blackened and invaded by B.fabae. B.fabae appeared to metabolize wyerone acid and prevent its accumulation in invaded tissues. Mycelial growth of B. fabae was less sensitive to wyerone acid than was B. cinerea. The differing abilities of B.fabae and B. cinerea to spread from lesions after both have induced wyerone acid production probably depend on both their differing sensitivities to the phytoalexin and their abilities to metabolize it to less toxic products.
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Claims 8
Claim · model-written summary
Host cell death caused by either fungus appears to trigger rapid wyerone acid synthesis in Vicia faba.
- Taxon
- Vicia faba
Vicia fabae1 - Compound
- wyerone acide2
- Outcome
- wyerone acid synthesise2
- Qualifier
- Host cell death caused by either funguse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Wyerone acid was produced by leaves of Vicia faba in response to infection by both Botrytis cinerea and B.fabae”
e2“Host cell death caused by either fungus appeared to be the trigger for rapid wyerone acid synthesis”
Claim · model-written summary
Wyerone acid concentration increased rapidly at Botrytis cinerea inoculation sites, to levels above those completely inhibitory to mycelial growth.
- Taxon
- Vicia fabaVicia fabae1
- Treatment
- B. cinerea inoculatione3
- Interactor
- B. cinerea
Botrytis cinereae3pathogen - Outcome
- wyerone acid concentratione3
- Direction
- increasede3
- Qualifier
- rapidly, at the time of fungal invasion of the epidermise3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Wyerone acid was produced by leaves of Vicia faba in response to infection by both Botrytis cinerea and B.fabae”
e3“At B. cinerea inoculation sites wyerone acid concentration increased rapidly, at the time of fungal invasion of the epidermis, to levels greater than that completely inhibitory to mycelial growth”
Claim · model-written summary
Wyerone acid is probably the primary cause of the inhibition of Botrytis cinerea within infected Vicia faba tissue.
- Taxon
- Vicia fabaVicia fabae1
- Compound
- Wyerone acide4
- Outcome
- inhibition of B. cinereae4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Wyerone acid was produced by leaves of Vicia faba in response to infection by both Botrytis cinerea and B.fabae”
e4“Wyerone acid is therefore probably the primary cause of the inhibition of B. cinerea within infected tissue”
Claim · model-written summary
Partial blackening of B. fabae inoculation sites was accompanied by an increase in wyerone acid.
- Taxon
- Vicia fabaVicia fabae1
- Treatment
- B.fabae inoculatione5
- Interactor
- B.fabae
Botrytis fabaee5pathogen - Outcome
- wyerone acide5
- Direction
- increasee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Wyerone acid was produced by leaves of Vicia faba in response to infection by both Botrytis cinerea and B.fabae”
e5“The partial blackening of B.fabae inoculation sites and surrounding peripheral tissues was accompanied by an increase in wyerone acid”
Claim · model-written summary
Complete blackening and invasion by B. fabae was followed by a striking decrease in wyerone acid.
- Taxon
- Vicia fabaVicia fabae1
- Interactor
- B.fabaeBotrytis fabaee6pathogen
- Outcome
- wyerone acide5
- Direction
- striking decreasee6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Wyerone acid was produced by leaves of Vicia faba in response to infection by both Botrytis cinerea and B.fabae”
e5“The partial blackening of B.fabae inoculation sites and surrounding peripheral tissues was accompanied by an increase in wyerone acid”
e6“There followed a striking decrease as tissues became completely blackened and invaded by B.fabae”
Claim · model-written summary
B. fabae probably metabolizes wyerone acid and prevents its accumulation in invaded Vicia faba tissues.
- Taxon
- Vicia fabaVicia fabae1
- Interactor
- B.fabaeBotrytis fabaee7pathogen
- Compound
- wyerone acide7
- Outcome
- accumulation in invaded tissuese7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Wyerone acid was produced by leaves of Vicia faba in response to infection by both Botrytis cinerea and B.fabae”
e7“B.fabae appeared to metabolize wyerone acid and prevent its accumulation in invaded tissues”
Claim · model-written summary
Mycelial growth of B. fabae was less sensitive to wyerone acid than that of B. cinerea.
- Taxon
- B. fabaeBotrytis fabaee0
- Treatment
- wyerone acide0
- Outcome
- Mycelial growthe0
- Direction
- less sensitivee0
- Comparator
- B. cinereae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mycelial growth of B. fabae was less sensitive to wyerone acid than was B. cinerea”
Claim · model-written summary
Differing abilities of B. fabae and B. cinerea to metabolize wyerone acid and to tolerate it probably determine their spread from lesions.
- Taxon
- Vicia fabaVicia fabae1
- Interactor
- B.fabaeBotrytis fabaee2pathogen
- Outcome
- spread from lesionse2
- Qualifier
- differing sensitivities to the phytoalexin and their abilities to metabolize it to less toxic productse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Wyerone acid was produced by leaves of Vicia faba in response to infection by both Botrytis cinerea and B.fabae”
e2“The differing abilities of B.fabae and B. cinerea to spread from lesions after both have induced wyerone acid production probably depend on both their differing sensitivities to the phytoalexin and their abilities to metabolize it to less toxic products”
The same questions in other papers
Botrytis cinerea · molecular: metabolites · Vicia faba (faba bean)Results agree
2 papers in the same direction as this paper
- positive
- positive
inoculation · molecular: metabolites · Vicia faba (faba bean)Positive and negative results
13 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
11 papers more in this group
See all 15 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.