Case Study: Sclerotinia sclerotiorum: Genetic Diversity and Disease Control

Petrofeza, Silvana; Nasser, Luiz Carlos Bhering

doi:10.5772/33780

Cited by 8 publications

(2 citation statements)

References 70 publications

(141 reference statements)

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“…Sclerotinia sclerotiorum (Lib) de Bary, the pandemic agent of white mould disease, is one of these polyphagous fungi. It can attack more than four hundred plant species (Purdy 1979;Boland and Hall 1994) and generates yearly losses estimated to several millions of dollars worldwide (Petrofeza and Nasser 2012). S. sclerotiorum can survive several years in the soil as sclerotia.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Sclerotinia sclerotiorum airborne inoculum, the widespread agent of white mould disease

Leyronas¹,

Benigni²,

Leignez³

et al. 2019

Aerobiologia

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A means to rationalize the use of fungicides for crop protection and to make agriculture friendlier to environment and human health is to develop disease-risk forecasting systems based on the assessment of airborne inoculum abundance. Sclerotinia sclerotiorum, the pandemic agent of white mould disease, is disseminated via the atmosphere in the form of ascospores. These airborne spores are the primary source of inoculum initiating the majority of epidemics. However for witloof chicory (Cichorium intybus var. foliosum L.), there is no data about airborne inoculum of S. sclerotiorum, which makes it difficult to develop a forecasting model. In the present study we characterized the temporal evolution of the abundance and of the genetic characteristics of S. sclerotiorum inoculum on a witloof chicory field located in Northern France over a three-year period. To our knowledge, this study provides the first quantification of viable airborne populations of this fungus in witloof chicory crops. Moreover it provides the first genetic characterization of S. sclerotiorum airborne inoculum. The results show that viable ascospores were present through 80% of the sampling dates. A significant correlation between abundance of airborne ascospores and local relative humidity suggests a local origin of inoculum. However, the existence of a slight genetic differentiation between isolates carried by air masses coming from the West and from the North-West is compatible with the hypothesis of a distant origin of S. sclerotiorum inoculum. We discuss the additional studies that are envisioned to clarify the origin of S. sclerotiorum airborne inoculum in witloof chicory fields.

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Section: Introductionmentioning

confidence: 99%

Characterization of Sclerotinia sclerotiorum airborne inoculum, the widespread agent of white mould disease

Leyronas¹,

Benigni²,

Leignez³

et al. 2019

Aerobiologia

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“…and other species of Sclerotinia, can affect a wide range of cultivated and wild plant species and may cause annual economic losses estimated to reach millions of dollars worldwide (Purdy 1979;Boland & Hall 1994;Petrofeza & Nasser 2012). On diseased plants, the pathogen usually produces numerous sclerotia that have a potential of survival for several years in the soil.…”

Section: Introductionmentioning

confidence: 99%

First report of Sclerotinia subarctica in France detected with a rapid PCR-based test

Leyronas¹,

Troulet²,

Duffaud³

et al. 2018

Canadian Journal of Plant Pathology

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Assessing the phenotypic and genotypic diversity of Sclerotinia sclerotiorum in France

Leyronas¹,

Bardin²,

Berthier³

et al. 2018

Eur J Plant Pathol

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Case Study: Sclerotinia sclerotiorum: Genetic Diversity and Disease Control

Cited by 8 publications

References 70 publications

Characterization of Sclerotinia sclerotiorum airborne inoculum, the widespread agent of white mould disease

Characterization of Sclerotinia sclerotiorum airborne inoculum, the widespread agent of white mould disease

First report of Sclerotinia subarctica in France detected with a rapid PCR-based test

Assessing the phenotypic and genotypic diversity of Sclerotinia sclerotiorum in France

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