Claim · model-written summary
Compositae genera with downy mildew were also affected by rust or powdery mildew.
- Taxon
- CompositaeAsteraceaee1
- Interactor
- downy mildewPeronosporaceaee0pathogen
- Second interactor
- rust and/or powdery mildewe0pathogen
- Outcome
- affected by a rust and/or powdery mildewe0
Not reportedDirection
Verbatim
e0“If a host genus is affected by a downy mildew, it also is affected by a rust and/or powdery mildew.”
e1“genera of the 15 tribes of Compositae”
Title
The Distribution of Downy and Powdery Mildews and of Rusts Over Tribes of Compositae (Asteraceae)
Robert G. Kenneth; J. Palti Mycologia 1984. doi:10.1080/00275514.1984.12023901
Other claims from this paper (12)
- Observation Host genera attacked by downy mildews, powdery mildews and rusts were most frequent in Lactuceae and also frequent in Cynareae and Heliantheae.
- Observation Mutisieae had very few genera with powdery mildew or rust and none with downy mildew.
- Observation Among attacked Compositae genera, 99 had rusts alone.
- Observation Among attacked Compositae genera, 32 had powdery mildews alone.
- Observation Sixty-four Compositae genera were affected by all three pathogen groups.
- Observation Bremia hosts concentrated in tribes where Plasmopara hosts were rare or absent, and vice versa.
- Observation Peronospora hosts were limited to Anthemideae and Lactuceae.
- Observation Basidiophora hosts were limited to Astereae and Heliantheae.
- Observation No downy mildew hosts were recorded in Liabeae and Tageteae genera.
- Observation Puccinia occurred across all Compositae tribes.
- Observation Uromyces species were absent from Lactuceae hosts.
- Observation Hosts in Senecioneae, Cynareae and Lactuceae were most likely to have species from more than one Erysiphaceae genus.