First record of the fungus <i>Blumeriella kerriae</i> in the UK

Robinson, R.J.; Könyves, Kálmán; Scrace, J.

doi:10.5197/j.2044-0588.2017.035.034

Cited by 3 publications

(3 citation statements)

References 4 publications

(4 reference statements)

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“…121). This pathogen causes leaf spots and was described for the first time in the UK only recently (Stewart, 1917; Robinson et al, 2017). Its identification at two distant sites during our strolls suggests that this species may be widespread in France despite never having been officially reported.…”

Section: Resultsmentioning

confidence: 99%

‘Phytopathological strolls’ in the dual context of COVID-19 lockdown and IYPH2020: transforming constraints into an opportunity for public education about plant pathogens

Suffert

2021

Preprint

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The experience presented here relates to 2020, a particularly timely year for plant disease-related communication ('International Year of Plant Health' IYPH2020), but also a unique year because of the COVID-19 pandemic. Our goal was to illustrate the diversity and beauty of fungal plant pathogens through a naturalist approach that could be followed by any amateur. We achieved this end through 'phytopathological strolls', in which we observed and determined the origin of symptoms on diseased plants found in our garden, in the local streets, in nearby open spaces, and sharing this matter with a broad public. The lockdown imposed in France created an additional motivation to take up the challenge, and to involve our children, even under strong constraints, such as movement restrictions. We observed and described fungal pathogens through hundreds of photographs, shared our findings with a large audience on Twitter, and received feedback. The material used was deliberately simple and transportable: a digital reflex camera, an old microscope, a mobile phone, some books and an Internet connexion. Between March 17 March and December 15, 2020 we found 148 plant pathogens, including 72 rusts, 22 powdery mildews and 22 septoria-like diseases. We discuss here the importance of promoting searches for plant pathogens, their description and conservation, through a combination of classical approaches and digital tools in tune with the times, such as Twitter, by treating pathogen identification like a detective game and, more surprisingly, by making use of the addictive nature of collection approaches, drawing a parallel with Pokémon Go.

show abstract

Section: Resultsmentioning

confidence: 99%

‘Phytopathological strolls’ in the dual context of COVID-19 lockdown and IYPH2020: transforming constraints into an opportunity for public education about plant pathogens

Suffert

2021

Preprint

View full text Add to dashboard Cite

show abstract

“…157). This pathogen causes leaf spots and was described for the first time in the UK only recently (Robinson et al, 2017; Stewart, 1917). Its identification at two distant sites during our strolls suggests that this species may be widespread in France despite never having been officially reported.…”

Section: Resultsmentioning

confidence: 99%

“…157). This pathogen causes leaf spots and was described for the first time in the UK only recently (Robinson et al, 2017;Stewart, 1917). Its identification at two distant sites during our strolls suggests that this species may a rare plant endemic to France, at L'Hospitalet-du-Larzac on the Larzac Causse (Coste, 1887).…”

Section: Some Uncommon Speciesmentioning

confidence: 99%

“Phytopathological strolls” in the dual context of COVID‐19 lockdown and IYPH2020: Transforming constraints into an opportunity for public education about plant pathogens

Suffert

2021

Plant Pathology

View full text Add to dashboard Cite

The experience presented here relates to 2020, a particularly timely year for plant disease-related communication ('International Year of Plant Health' IYPH2020), but also a unique year because of the COVID-19 pandemic. Our goal was to illustrate the diversity and beauty of fungal plant pathogens through a naturalist approach that could be followed by any amateur. We achieved this end through 'phytopathological strolls', in which we observed and determined the origin of symptoms on diseased plants found in our garden, in the local streets, in nearby open spaces, and sharing this matter with a broad public. The lockdown imposed in France created an additional motivation to take up the challenge, and to involve our children, even under strong constraints, such as movement restrictions. We observed and described fungal pathogens through hundreds of photographs, shared our findings with a large audience on Twitter, and received feedback. The material used was deliberately simple and transportable: a digital reflex camera, an old microscope, a mobile phone, some books and an Internet connexion. Between March 17, 2020 and June 20, 2021 we found 196 plant pathogens, including 97 rusts, 27 powdery mildews and 28 septoria-like diseases. We discuss here the importance of promoting searches for plant pathogens, their description and conservation, through a combination of classical approaches and digital tools in tune with the times, such as Twitter, by treating pathogen identification like a detective game and, more surprisingly, by making use of the addictive nature of collection approaches, drawing a parallel with Pokémon Go.

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Characterizations of an Emerging Disease: Apple Blotch Caused by Diplocarpon coronariae (syn. Marssonina coronaria) in the Mid-Atlantic United States

et al. 2022

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Apple orchards with minimal or reduced fungicide inputs in the Mid-Atlantic region of the United States have experienced outbreaks of severe premature defoliation with symptoms that matched those of apple blotch disease (ABD) caused by Diplocarpon coronariae. Fungal isolates obtained from symptomatic apple leaves and fruit produced uniform slow-growing dark grey colonies on peptone potato dextrose agar and had conidia. ITS DNA sequences matched with D. coronariae and Koch’s postulates were fulfilled when typical ABD symptoms occurred when re-inoculated onto apple leaves and fruit. Spore dispersal in non-fungicide treated orchards detected with qPCR was low in early spring and dropped to undetectable levels in late May and early June before rising exponentially to highs in July and August, which coincided with symptom development. Only low spore numbers were detected in fungicide treated orchards and nearby forests. In preliminary fungicide tests, fluxapyroxad, thiophanate methyl, and difenoconazole effectively inhibited mycelial growth of isolates in vitro. When apple cultivars ‘Fuji’ and ‘Honeycrisp’ were inoculated with D. coronariae, cv. ‘Honeycrisp’ showed delayed onset of symptoms and lower disease severity, and the transcription profile of seven host defense-related genes showed that PR-2, PR-8, LYK4, and CERK1 were highly induced in cv. ‘Honeycrisp’ at 2- and 5-days post inoculation. This is the first report of ABD in the Mid-Atlantic United States, which includes studies of seasonal D. coronariae spore dispersal patterns, preliminary fungicide efficacy, and host defense-related gene expression to assist development of best ABD management practices.

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First record of the fungus Blumeriella kerriae in the UK

Cited by 3 publications

References 4 publications

‘Phytopathological strolls’ in the dual context of COVID-19 lockdown and IYPH2020: transforming constraints into an opportunity for public education about plant pathogens

‘Phytopathological strolls’ in the dual context of COVID-19 lockdown and IYPH2020: transforming constraints into an opportunity for public education about plant pathogens

“Phytopathological strolls” in the dual context of COVID‐19 lockdown and IYPH2020: Transforming constraints into an opportunity for public education about plant pathogens

Characterizations of an Emerging Disease: Apple Blotch Caused by Diplocarpon coronariae (syn. Marssonina coronaria) in the Mid-Atlantic United States

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