@ARTICLE{TreeBASE2Ref27261, author = {Imane Laraba and Houda Boureghda and Abdellazziz Kedad and Martha M. Vaughan and Robert H. Proctor and Mark Busman and Kerry O?Donnell}, title = {Fusarium algeriense sp. nov., a novel toxigenic crown rot pathogen of durum wheat from Algeria is nested within the Fusarium burgessii species complex}, year = {2017}, keywords = {mating type, molecular phylogenetic, moniliformin, morphology, mycotoxins, pathogenicity, phylogenetic species recognition}, doi = {}, url = {http://}, pmid = {}, journal = {Mycologia}, volume = {}, number = {}, pages = {}, abstract = {A novel crown rot pathogen of wheat discovered during pathogen surveys of Algeria during 2014 and 2015 is formally described here as Fusarium algeriense. Multilocus molecular phylogenetic data resolved the eight isolates of this pathogen as a genealogically exclusive species lineage within the F. burgessii species complex. The other two described species within this complex, F. burgessii and F. beomiforme, produce abundant chlamydospores in culture and their optimal temperature for growth is 30 C. By comparison, F. algeriense did not produce chlamydospores under the conditions tested and it grew fastest at 25 C. Furthermore, F. algeriense differs from F. burgessii and F. beomiforme, respectively, because it doesn?t produce polyphialides and napiform-to-globose conidia in the aerial mycelium. Koch?s postulates were completed in a temperature controlled incubator, where isolates of F. algeriense induced moderate crown rot on the susceptible spring wheat cultivar Norm. Fusarium burgessii and F. beomiforme, by contrast, only produced mild symptoms of this disease. BLASTn searches of the whole-genome sequence of F. algeriense strains NRRL 66647 and 66648, using homologs of genes known to encode toxic secondary metabolites, indicated they have the potential to produce several polyketide and non-ribosomal peptide mycotoxins. However, moniliformin and 2-AOD-ol were the only mycotoxins detected by liquid chromatographic-mass spectrometric analyses of strains cultivated in vitro on a solid substrate. A PCR assay for MAT idiomorph revealed that MAT1-1 and MAT1-2 strains of F. algeriense were present in Algeria, which suggests this pathogen might possess a self-sterile or heterothallic sexual reproductive mode.} }

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