Lecanosticta pharomachri and its newly discovered sexual state causing a serious needle disease of Pinus spp. in Colombia

Brown spot needle blight (BSNB), caused by the fungal pathogen , is a well-known disease of species in several Northern Hemisphere countries. In the Southern Hemisphere, this disease has been reported only in Colombia and, apart from a single report of severe defoliation of plantations in the early...

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Bibliographic Details
Published inPlant disease
Main Authors Theron, Cheyenne, Marincowitz, Seonju, Rodas, Carlos, Wingfield, Mike, Barnes, Irene
Format Journal Article
LanguageEnglish
Published United States 01.07.2022
Subjects
Fungi
Mycosphaerellaceae
pine disease
tree health
Pathogen detection
Causal Agent
needle blight
Subject Areas
sexual state
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Summary:Brown spot needle blight (BSNB), caused by the fungal pathogen , is a well-known disease of species in several Northern Hemisphere countries. In the Southern Hemisphere, this disease has been reported only in Colombia and, apart from a single report of severe defoliation of plantations in the early 1980s, has not caused serious damage in this country. A recent outbreak of a disease resembling BSNB on Mesoamerican species grown in Colombia has raised concern that may have re-emerged as a pathogen. DNA sequence-based analyses for the ITS, TEF1 and RPB2 regions showed that the outbreaks were caused by , a recently described species distinct from, but closely related to . The discovery of in Colombia is the first incidence of the pathogen causing a serious disease problem and the first occurrence on the hosts and . A sexual state for was discovered for the first time and the description of the species has thus been amended.
ISSN:0191-2917
DOI:10.1094/PDIS-08-21-1759-RE