Claim · model-written summary
About 70% of Viola delavayi plants in the surveyed park had heavy powdery mildew infection.
Verbatim
e0“V. delavayi suffering from heavy powdery mildew infections was found with approximately 70% of the plants affected in Forest Park, Haidong (36.5°N, 102.4°E, altitude 2,200 m), China”
Title
First Report of Powdery Mildew Caused by Golovinomyces orontii on Viola delavayi in China
Luchao Bai; Yingtai Cao; Qiang Lin; et al. Plant Disease 2019. doi:10.1094/pdis-02-19-0251-pdn
Other claims from this paper (6)
- Observation Morphology identified the fungus infecting Viola delavayi as Golovinomyces orontii.
- Observation ITS sequences of the fungus from Viola delavayi were identical to a G. orontii reference.
- Observation Sequences from the Viola delavayi specimen clustered with G. orontii in an ITS phylogeny.
- Intervention effect Inoculated Viola delavayi developed disease signs and symptoms after 15 days, while controls remained symptomless.
- Observation The fungus on inoculated Viola delavayi leaves matched the fungus on the original diseased plants.
- Observation The authors report the first worldwide occurrence of powdery mildew due to G. orontii on V. delavayi.
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Golovinomyces orontii