Colletotrichum Pathogens in Plants

A special issue of Microorganisms (ISSN 2076-2607). This special issue belongs to the section "Plant Microbe Interactions".

Deadline for manuscript submissions: 30 August 2024 | Viewed by 754

Special Issue Editor


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Guest Editor
Department of Plant Health and Environment, French National Institute for Agriculture, Food, and Environment (INRAE), UR ASTRO, F-97170, Petit-Bourg, France
Interests: colletotrichum

Special Issue Information

Dear Colleagues,

Colletotrichum fungi are pathogens commonly found in crops and more generally in wild plants. Today, these fungi are extensively classified in 14 species complexes via spore morphology and sequencing, and great progress was made regarding taxonomy in recent decades. However, there are still obstacles in ascertaining relationships between species and complexes, and in bridging these relationships to their ecologies at large, including infection and disease dynamics. Indeed, while taxonomic knowledge greatly improved recently, many questions regarding the natural history of these complexes remain open, especially in light of taxonomical progress and in relation to diversity dynamics and speciation in the genus. In this Special Issue, we will explore both taxonomic and ecological research fronts on Colletotrichum species complexes. We welcome contributions on large-scale or fine-scale phylogeny within the genus, and also studies on host range, host evolution, diversity, and natural flora, as well as genetic diversity and gene admixtures within and between the complexes. A better understanding of taxonomy-relevant information, in combination of Colletotrichum interactions with plants and other species in natural communities of plant microbiomes, especially for crops, will indeed facilitate progress toward more resilient agriculture and sustainable disease management, both in fields and agricultural landscapes.

Dr. Laurent Penet
Guest Editor

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Keywords

  • colletotrichum
  • host evolution
  • diversity
  • genetic diversity

Published Papers (1 paper)

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Research

13 pages, 294 KiB  
Article
New Species-Specific Real-Time PCR Assays for Colletotrichum Species Causing Bitter Rot of Apple
by Diana J. McHenry and Srđan G. Aćimović
Microorganisms 2024, 12(5), 878; https://doi.org/10.3390/microorganisms12050878 - 27 Apr 2024
Viewed by 464
Abstract
Bitter rot of apple is an economically important worldwide disease caused by different Colletotrichum species, depending on many factors such as climate, geography, other hosts, and crop management practices. Culture, morphology, and single-locus sequencing-based methods for identifying the Colletotrichum species are severely limited [...] Read more.
Bitter rot of apple is an economically important worldwide disease caused by different Colletotrichum species, depending on many factors such as climate, geography, other hosts, and crop management practices. Culture, morphology, and single-locus sequencing-based methods for identifying the Colletotrichum species are severely limited in effectiveness, while the multilocus sequence typing methods available for delineating species are costly, time-intensive, and require high expertise. We developed species-specific hydrolysis probe real-time PCR assays for the following nine Colletotrichum species causing bitter rot in the Mid-Atlantic U.S.A.: C. fructicola, C. chrysophilum, C. noveboracense, C. gloeosporioides s.s., C. henanense, C. siamense and C. theobromicola from the C. gloeosporioides species complex, and C. fioriniae and C. nymphaeae from the C. acutatum species complex. After searching 14 gene regions, we designed primers and probes in 5 of them for the nine target species. Four primer–probe set pairs were able to be duplexed. Sensitivity tests showed as little as 0.5 pg DNA were detectable. These real-time PCR assays will provide rapid and reliable identification of these key Colletotrichum species and will be critically important for studies aiming to elucidate their biology, epidemiology, and management on apples as the number one produced and consumed tree fruit in the U.S.A. Full article
(This article belongs to the Special Issue Colletotrichum Pathogens in Plants)
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