Abstract
Fourteen dematiaceous hyphomycetes fungi related to 9 genera isolated from diseased leaves of broad bean plant were investigated for their pathogenicity.Eight fungal species (represent 57.15% of total fungi tested) were positive and successfully able to infect broad bean leaves appearing leaf spot symptoms.Among these fungi Alternaria alternata was the most active virulent and produced leaf spots on more than 75% of infected leaves.Six fungal species (42.85%) had negative pathogenicity result and unable to infect the leaves of plant failing to produce any leaf spot symptoms.The photosynthetic pigments (chlorophyll a, chlorophyll b and carotenoids) were significantly decreased as a result of the infection of phytopathogenic fungi.The concentrations of photosynthetic pigments were adversely affected by the degree of pathogenicity.Eight phytopathogenic fungi were screened for their abilities to produce pectinase enzyme using cup-plate method.All isolates tested were pectinase producers, but with variable degrees.Three fungal isolates (37.5% of total isolates) exhibited high pectinase activity and these were: Alternaria citri, A. raphani and A. tenuissima.Three other isolates (37.5%) were found to be moderate pectinase activity and these were: Alternaria alternata, Curvularia lunata and Ulocladium botrytis.Cochliobolus spicifer and Stachybotrys atra var.microspora (25%) were low producers of the enzyme.Maximum production of pectinase produced by A. citri and A. raphani was recorded after 8 days at 30°C and pH 6 in the liquid medium supplemented with citrus pectin and ammonium sulphate as carbon and nitrogen sources respectively.
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 15
Claim · model-written summary
Eight fungal species infected broad bean leaves and produced leaf spots.
- Taxon
- broad bean
Vicia fabae0 - Interactor
- fungal speciese0pathogen
- Outcome
- leaf spot symptomse0
- Value
- 57.15%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Eight fungal species (represent 57.15% of total fungi tested) were positive and successfully able to infect broad bean leaves appearing leaf spot symptoms”
Claim · model-written summary
Alternaria alternata was the most virulent fungus and caused spots on more than 75% of infected broad bean leaves.
- Taxon
- Vicia fabaVicia fabat0
- Interactor
- Alternaria alternata
.jpg?width=60)
Alternaria alternatae0pathogen - Outcome
- leaf spotse0
- Value
- more than 75%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Among these fungi Alternaria alternata was the most active virulent and produced leaf spots on more than 75% of infected leaves”
t0“Vicia faba”
Claim · model-written summary
Six fungal species failed to infect broad bean leaves or cause spots.
- Taxon
- Vicia fabaVicia fabat0
- Interactor
- fungal speciese0pathogen
- Outcome
- unable to infect the leaves of plant failing to produce any leaf spot symptomse0
- Value
- 42.85%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Six fungal species (42.85%) had negative pathogenicity result and unable to infect the leaves of plant failing to produce any leaf spot symptoms”
t0“Vicia faba”
Claim · model-written summary
Phytopathogenic fungal infection significantly decreased chlorophyll a, chlorophyll b and carotenoids.
- Taxon
- Vicia fabaVicia fabat0
- Treatment
- infection of phytopathogenic fungie0
- Interactor
- phytopathogenic fungie0pathogen
- Outcome
- chlorophyll a, chlorophyll b and carotenoidse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The photosynthetic pigments (chlorophyll a, chlorophyll b and carotenoids) were significantly decreased as a result of the infection of phytopathogenic fungi”
t0“Vicia faba”
Claim · model-written summary
Photosynthetic pigment concentrations varied adversely with fungal pathogenicity.
- Taxon
- Vicia fabaVicia fabat0
- Treatment
- degree of pathogenicitye0
- Outcome
- concentrations of photosynthetic pigmentse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The concentrations of photosynthetic pigments were adversely affected by the degree of pathogenicity”
t0“Vicia faba”
Claim · model-written summary
Alternaria citri showed high pectinase activity.
- Taxon
- Vicia fabaVicia fabat0
- Interactor
- Alternaria citri
Alternaria citrie0pathogen - Outcome
- pectinase activitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three fungal isolates (37.5% of total isolates) exhibited high pectinase activity and these were: Alternaria citri, A. raphani and A. tenuissima”
t0“Vicia faba”
Claim · model-written summary
A. raphani showed high pectinase activity.
- Taxon
- Vicia fabaVicia fabat0
- Interactor
- A. raphaniAlternaria japonicae0pathogen
- Outcome
- pectinase activitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three fungal isolates (37.5% of total isolates) exhibited high pectinase activity and these were: Alternaria citri, A. raphani and A. tenuissima”
t0“Vicia faba”
Claim · model-written summary
A. tenuissima showed high pectinase activity.
- Taxon
- Vicia fabaVicia fabat0
- Interactor
- A. tenuissimaAlternaria tenuissimae0pathogen
- Outcome
- pectinase activitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three fungal isolates (37.5% of total isolates) exhibited high pectinase activity and these were: Alternaria citri, A. raphani and A. tenuissima”
t0“Vicia faba”
Claim · model-written summary
Alternaria alternata showed moderate pectinase activity.
- Taxon
- Vicia fabaVicia fabat0
- Interactor
- Alternaria alternataAlternaria alternatae0pathogen
- Outcome
- pectinase activitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three other isolates (37.5%) were found to be moderate pectinase activity and these were: Alternaria alternata, Curvularia lunata and Ulocladium botrytis”
t0“Vicia faba”
Claim · model-written summary
Curvularia lunata showed moderate pectinase activity.
- Taxon
- Vicia fabaVicia fabat0
- Interactor
- Curvularia lunata
Curvularia lunatae0pathogen - Outcome
- pectinase activitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three other isolates (37.5%) were found to be moderate pectinase activity and these were: Alternaria alternata, Curvularia lunata and Ulocladium botrytis”
t0“Vicia faba”
Claim · model-written summary
Ulocladium botrytis showed moderate pectinase activity.
- Taxon
- Vicia fabaVicia fabat0
- Interactor
- Ulocladium botrytisAlternaria botrytise0pathogen
- Outcome
- pectinase activitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three other isolates (37.5%) were found to be moderate pectinase activity and these were: Alternaria alternata, Curvularia lunata and Ulocladium botrytis”
t0“Vicia faba”
Claim · model-written summary
Cochliobolus spicifer showed low pectinase activity.
- Taxon
- Vicia fabaVicia fabat0
- Interactor
- Cochliobolus spiciferCurvularia spiciferae0pathogen
- Outcome
- low producers of the enzymee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cochliobolus spicifer and Stachybotrys atra var.microspora (25%) were low producers of the enzyme”
t0“Vicia faba”
Claim · model-written summary
Stachybotrys atra var.microspora showed low pectinase activity.
- Taxon
- Vicia fabaVicia fabat0
- Interactor
- Stachybotrys atra var.microsporae0pathogen
- Outcome
- low producers of the enzymee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cochliobolus spicifer and Stachybotrys atra var.microspora (25%) were low producers of the enzyme”
t0“Vicia faba”
Claim · model-written summary
A. citri showed maximum pectinase production after eight days at 30°C and pH 6 in supplemented liquid medium.
- Taxon
- Vicia fabaVicia fabat0
- Interactor
- A. citriAlternaria citrie0pathogen
- Outcome
- Maximum production of pectinasee0
- Direction
- Maximume0
- Qualifier
- after 8 days at 30°C and pH 6 in the liquid medium supplemented with citrus pectin and ammonium sulphatee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maximum production of pectinase produced by A. citri and A. raphani was recorded after 8 days at 30°C and pH 6 in the liquid medium supplemented with citrus pectin and ammonium sulphate as carbon and nitrogen sources respectively”
t0“Vicia faba”
Claim · model-written summary
A. raphani showed maximum pectinase production after eight days at 30°C and pH 6 in supplemented liquid medium.
- Taxon
- Vicia fabaVicia fabat0
- Interactor
- A. raphaniAlternaria japonicae0pathogen
- Outcome
- Maximum production of pectinasee0
- Direction
- Maximume0
- Qualifier
- after 8 days at 30°C and pH 6 in the liquid medium supplemented with citrus pectin and ammonium sulphatee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maximum production of pectinase produced by A. citri and A. raphani was recorded after 8 days at 30°C and pH 6 in the liquid medium supplemented with citrus pectin and ammonium sulphate as carbon and nitrogen sources respectively”
t0“Vicia faba”