Publications by authors named "Fourrier-Jeandel C"

Article Synopsis
  • Leaf blotch, caused by Alternaria species, is prevalent in apple-growing areas and associated with specific phylogenetic taxa, including a regulated pathogen known for producing a host-selective toxin (HST) that affects apple trees.
  • Since 2016, the disease has led to leaf blotch and tree defoliation in central and southeastern France, prompting a study to identify the species responsible and check for the apple pathotype.
  • The research found that while all tested isolates were pathogenic to the apple cultivars Golden Delicious and Gala, the apple pathotype was absent, and the Golden Delicious cultivar showed higher susceptibility to the Alternaria leaf blotch compared to Gala.
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Phyllosticta citricarpa, Elsinoë fawcettii, Elsinoë australis, and Pseudocercospora angolensis are major pathogens of citrus crops worldwide and can cause non-characteristic symptoms that may lead to confusion regarding the causative agent. These fungi are subject to international phytosanitary regulations, and testing on fruits or leaves requires accurate and easy-to-use tools. New multiplex conventional PCR and real-time PCR assays were developed here to achieve highly accurate simultaneous detection of all four fungal pathogens in fruit tissues.

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Elsinoë fawcettii, E. australis, and Pseudocercospora angolensis are causal agents of citrus scab and spot diseases. The three pathogens are listed as quarantine pests in many countries and are subject to phytosanitary measures to prevent their entry.

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Techniques based on high-throughput sequencing (HTS) of environmental DNA have provided a new way of studying fungal diversity. However, these techniques suffer from a number of methodological biases which may appear at any of the steps involved in a metabarcoding study. Air is one of the most important environments where fungi can be found, because it is the primary medium of dispersal for many species.

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Brown rot is an economically important fungal disease affecting stone and pome fruit orchards, as well as harvested fruit during storage and on the market. Monilinia fructicola, M. laxa, and M.

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