Invasive brown spot needle blight caused by<i>Lecanosticta acicola</i>in Estonia

Adamson, Kalev; Drenkhan, Rein; Hanso, M.

doi:10.1080/02827581.2015.1041550

Cited by 20 publications

(44 citation statements)

References 27 publications

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“…These include sequencing of various gene regions, an ITS‐RFLP method and a conventional PCR that uses species‐specific primers. The most common of these approaches is comparison of DNA sequences for the ITS gene region (Adamson et al ., , ; Cleary et al ., ; Markovskaja et al ., ; Mullett et al ., ). However, the TEF 1 (Fig.…”

Section: Molecular Diagnostics and Future Prospectsmentioning

confidence: 99%

“…These were developed to partially amplify the TEF 1 gene for L. acicola and D. pini , and partially amplify the BT 2 gene region in D. septosporum (Ioos et al ., ). Importantly, this method can be used to identify the pathogens directly from infected needles (Adamson et al ., ; Ortíz de Urbina et al ., ; Schneider et al ., ) and is now widely used for preliminary identification of L. acicola (Adamson et al ., ; Sadiković et al ., ). A multiplex qPCR was also recently developed to detect L. acicola as well as Dothistroma species from needles simultaneously using probe‐labelled primers developed by Ioos et al .…”

Section: Molecular Diagnostics and Future Prospectsmentioning

confidence: 99%

“…Other pine species such as Pinus × rhaetica and P. ponderosa have also been affected by L. acicola (Adamson et al ., , ). Lecanosticta acicola has been present in Croatia on P. halepensis for more than 40 years (Milatović, ; Sadiković et al ., ).…”

Section: Host Range Host Susceptibility and Geographic Distributionmentioning

confidence: 99%

“…Using the mating type markers of Janoušek et al . (), the distribution of MAT1 and MAT2 isolates was detected in studies with isolates from Croatia (Sadiković et al ., ), Estonia (Adamson et al ., , ), Ireland, Portugal, Russia (Mullett et al ., ) as well as Spain (Ortíz de Urbina et al ., ). In Spain, both mating types were detected whereas only single mating types were detected in all other areas studied.…”

Section: Molecular Diagnostics and Future Prospectsmentioning

confidence: 99%

“…Due to the severity of the disease, the pathogen has been afforded an A1 quarantine status in Africa, Argentina, Chile, Uruguay, Bahrain, Kazakhstan, Ukraine and Russia, and A2 quarantine status in Europe (https://gd.eppo.int/taxon/SCIRAC/categorization). However, reports of new outbreaks of the disease in various European countries have increased significantly since 2008 (Adamson et al ., , ; Anonymous, ; Cleary et al ., ; Hintsteiner et al ., ; Jankovský et al ., ; Markovskaja et al ., ; Mullett et al ., ; Ortíz de Urbina et al ., ).…”

Section: Introductionmentioning

confidence: 99%

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Lecanosticta acicola: A growing threat to expanding global pine forests and plantations

Nest

Wingfield

Janoušek

et al. 2019

Molecular Plant Pathology

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Summary Lecanosticta acicola causes brown spot needle blight (BSNB) of Pinus species. The pathogen occurs mostly in the Northern Hemisphere but has also been reported in Central America and Colombia. BSNB can lead to stunted growth and tree mortality, and has resulted in severe damage to pine plantations in the past. There have been increasingly frequent new reports of this pathogen in Europe and in North America during the course of the past 10 years. This is despite the fact that quarantine practices and eradication protocols are in place to prevent its spread. Taxonomy Kingdom Fungi; Phylum Ascomycota; Subphylum Pezizomycotina; Class Dothideomycetes; Subclass Dothideomycetidae; Order Capniodales; Family Mycosphaerellaceae; Genus Lecanosticta. Host range and distribution Lecanosticta spp. occur on various Pinus species and are found in North America, Central America, South America (Colombia), Europe as well as Asia. Disease symptoms Small yellow irregular spots appear on the infected pine needles that become brown over time. They can be surrounded by a yellow halo. These characteristic brown spots develop to form narrow brown bands that result in needle death from the tips down to the point of infection. Needles are prematurely shed, leaving bare branches with tufts of new needles at the branch tips. Infection is usually most severe in the lower parts of the trees and progresses upwards into the canopies. Useful websites The EPPO global database providing information on L. acicola (https://gd.eppo.int/taxon/SCIRAC) Reference genome of L. acicola available on GenBank (https://www.ncbi.nlm.nih.gov/genome/?term=Lecanosticta+acicola) JGI Gold Genome database information sheet of L. acicola sequenced genome (https://gold.jgi.doe.gov/organism?xml:id=Go0047147)

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Section: Molecular Diagnostics and Future Prospectsmentioning

confidence: 99%