Claim · model-written summary
Sprayed conidia of Marssonina coronaria reproduced leaf blotch symptoms on Golden Delicious apple shoots, while water-treated controls showed none.
- Taxon
- apple
Malus domesticae1 - Material
- Golden Deliciouse1
- Treatment
- sprayed on the leavese1
- Interactor
- Marssonina coronariae4pathogen
- Outcome
- reproduced symptomse2
- Qualifier
- two independent experimentse2
- Comparator
- water-treated controlse3
- Setting
- mist chambere1
Not reportedGeneCompoundOrgan / stageSecond interactorSecond interactor roleDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Conidia from pure cultures were collected, suspended in sterile, distilled water (250,000 ml -1 ), and sprayed on the leaves of three ‘Golden Delicious’ apple shoots maintained in a mist chamber at 20 to 25°C for 2 weeks”
e2“In two independent experiments, the fungus reproduced symptoms like those observed on ‘Furnas’ and was reisolated from acervuli”
e3“No symptoms were observed on water-treated controls”
e4“The fungus was identified as Marssonina coronaria (Ellis & J.J. Davis) J.J. Davis, teleomorph Diplocarpon mali”
Title
First Report of Leaf Blotch Caused by Marssonina coronaria on Apple in Italy
G. Tamietti; A. Matta Plant Disease 2003. doi:10.1094/pdis.2003.87.8.1005b
Other claims from this paper (8)
- Observation Apple leaf blotch caused by Marssonina coronaria is reported for the first time in Italy.
- Observation A leaf disease was observed on apple cv. Furnas in Forno Canavese, Italy, in 2001 and 2002.
- Observation Marssonina coronaria was reisolated from acervuli on inoculated apple leaves.
- Observation Severely diseased apple leaves abscised prematurely.
- Observation Conidia of Marssonina coronaria measure 6.1 to 8.4 × 14.6 to 22.0 μm and are slightly shorter than originally described.
- Observation Acervuli of Marssonina coronaria measure 95 to 170 μm and erupt on the upper side of leaves.
- Observation Marssonina coronaria colonies on ALA medium were 5 to 7 mm in diameter.
- Observation Marssonina coronaria produced small colonies only on V8 and ALA media.