Bretziella fagacearum

TaxID: 1836592

Basic Information

Bretziella fagacearum

Oak Wilt

Oak wilt is a fungal disease caused by the organism Bretziella fagacearum that threatens Quercus spp. The disease is limited to the eastern half of the United States, Central Texas, and Southern Ontario. First described in the 1940s in the Upper Mississippi River Valley, the pathogen penetrates xylem tissue, preventing water transport and causing disease symptoms. Symptoms generally consist of leaf discoloration, wilt, defoliation, and death. The disease is dispersed by insect vectors and to adjacent trees through underground root networks. However, human spread is the most consequential dispersal method. Moving firewood long distances can potentially transport diseases and invasive species.

from Wikipedia

Taxonomic Information

Eukaryota

Ascomycota

Sordariomycetes

Microascales

Ceratocystidaceae

Bretziella

fagacearum

nan

Photos (5 photos)

Bretziella fagacearum
c
(c) karan_chahal@BY-NC
Bretziella fagacearum
c
(c) karan_chahal@BY-NC
Bretziella fagacearum
c
(c) Jared Shorma@BY
Bretziella fagacearum
c
(c) unknown@CC0
Bretziella fagacearum
c
(c) Gaspar Horvath@BY-NC

Morphological Features

Ascomatal bases black, globose, with undifferentiated ornamental hyphae, often embedded in mycelial mat. Ascomatal necks elongated, black at base, lighter at apex. Ostiolar hyphae present. Asci dehiscent. Ascospores one-celled, hyaline, ellipsoidal, occasionally curved, embedded in hyaline sheath. Conidiophores arise laterally from vegetative hyphae, occasionally branched. Conidiogenous cells phialidic, cylindrical, pale to dark brown. Conidia unicellular, cylindrical with flattened ends, hyaline, borne in chains of varying length. Aleurioconidia not present.

Source: GBIF Life Stage: Ascoma / Ascospore / Conidiophore / Conidium Source Type: Taxonomic treatment

Host Plants (35 host plants)

Data sources: EPPO Global Database and relevant literature.

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Quarantine Status (57 records)

Data sources: IPPC website and national quarantine websites; verified by human review.

Country Status Year Added
Albania Quarantine pests —
Armenia Absent —
Austria Quarantine pests 2019
Belgium Unknow 2019
Bangladesh Quarantine pests —
Bulgaria Quarantine pests 2019
Belarus Absent —
Canada Quarantine pests 2019
Switzerland A1 list 2019
Chile Quarantine pests 2019
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Distribution (8 countries)

Data Sources: EPPO Global Database and GBIF.

2
Present
6
Absent
0
Unknown/Other
Country Status State
Bulgaria Absent —
Canada Present
Lithuania Absent —
Netherlands Absent —
Poland Absent —
Romania Absent —
Slovenia Absent —
United States of America Present

Genomes (1 records)

Data source: NCBI.

Assembly Accession Assembly Level Genome Size(Mb) Contig N50(Kb) Scaffold N50(Kb) BUSCO% Downloads Actions
GCA_002018255.1 Scaffold 26 20 42 -

Transcriptomes (1 records)

Data source: NCBI.

Run ID Tissue Developmental Stage Sex Read Count Location Actions
SRR13083620 - - - 65258118 missing

DNA Barcodes (0 records)

View all

Data source: BOLD.

No DNA barcode records available.

Literature