@ARTICLE{TreeBASE2Ref25940, author = {Tom Grafenhan and Peter Johnston and Martha M. Vaughan and Susan P. McCormick and Mark Busman and Todd J. Ward and Kerry O'Donnell}, title = {Fusarium praegraminearum sp. nov. is a novel nivalenol mycotoxin-producing head blight pathogen from New Zealand }, year = {2016}, keywords = {genotyping, morphology, pathogenicity, phylogenetics, RPB1, RPB2, trichothecene, zearalenone }, doi = {}, url = {http://}, pmid = {}, journal = {Mycologia}, volume = {}, number = {}, pages = {}, abstract = {We report on the molecular and morphological characterization of a novel B-type trichothecene toxin-producing species (i.e., B clade) recovered from litter in a maize field near Wellington, New Zealand, which is described Fusarium praegraminearum sp. nov. This species was initially identified as F. acuminatum employing morphological data; however, it differs from this species in that it produces longer macroconidia in which the apical cell is not as pointed, chlamydospores are not produced, and its colony growth rate on agar is much faster. Molecular phylogenetic analyses of portions of 13 genes resolved F. praegraminearum as the basal most species within the B clade. Mycotoxin analyses demonstrated that it was able to produce 4-acetylnivalenol and 4,15-acetyl nivalenol, the nontrichothecene sesquiterpenes culmorin and hydroxy-culmorins, and the estrogen zearalenone in vitro. Results of a pathogenicity experiment revealed that F. praegraminearum was able to induce moderate head blight on wheat.} }

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