Pineapple Mycobiome Related to Fruitlet Core Rot Occurrence and the Influence of Fungal Species Dispersion Patterns

Fruitlet Core Rot (FCR) is a fungal disease that negatively impacts the quality of pineapple, in particular the 'Queen Victoria' cultivar. The main FCR causal agent has been identified as . This study focused on the correlation between FCR disease occurrence, fungal diversity, and environm...

Full description

Saved in:
Bibliographic Details
Published in:Journal of fungi (Basel) 2021-02, Vol.7 (3), p.175
Main Authors: Vignassa, Manon, Meile, Jean-Christophe, Chiroleu, Frédéric, Soria, Christian, Leneveu-Jenvrin, Charlène, Schorr-Galindo, Sabine, Chillet, Marc
Format: Article
Language:English
Subjects:
Fusarium
pathogenic fungi
pineapple disease
Talaromyces
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Fruitlet Core Rot (FCR) is a fungal disease that negatively impacts the quality of pineapple, in particular the 'Queen Victoria' cultivar. The main FCR causal agent has been identified as . This study focused on the correlation between FCR disease occurrence, fungal diversity, and environmental factors. FCR incidence and fungal species repartition patterns were spatially contextualized with specific surrounding parameters of the experimental plots. The mycobiome composition of healthy and diseased fruitlets was compared in order to search for potential fungal markers. A total of 240 pineapple fruits were sampled, and 344 fungal isolates were identified as belonging to 49 species among 17 genera. FCR symptom distribution revealed a significant gradient that correlated to that of the most abundant fungal species. The association of wind direction and the position of proximal cultivated crops sharing pathogens constituted an elevated risk of FCR incidence. Five highly represented species were assayed by Koch's postulates, and their pathogenicity was confirmed. These novel pathogens belonging to and species complexes were identified, unravelling the complexity of the FCR pathosystem and the difficulty of apprehending the pathogenesis over the last several decades. This study revealed that FCR is an airborne disease characterized by a multi-partite pathosystem.
ISSN:2309-608X
2309-608X
DOI:10.3390/jof7030175