Fusarium burgessii sp. nov. representing a novel lineage in the genus Fusarium

Abstract

A new species of Fusarium associated with Australian soils in non-cultivated ecosystems is described as Fusarium burgessii on the basis of morphological and phylogenetic data. Isolates recovered from biogeographical surveys over 26 years were selected for morphological examination. Two distinct morphotypes with morphological affinities to the Fusarium oxysporum, Fusarium redolens and Gibberella fujikuroi species complexes were observed. Phylogenetic resolution based on the translation elongation factor1α (EF-1α) and the second largest subunit of the RNA polymerase II gene (RPB2) separated the two morphotypes into novel phylogenetic Fusarium species, with one morphotype being assigned the species epithet Fusarium burgessii sp. nov. Phylogenetic analysis of the RPB2 locus with representatives of all the major Fusarium species complexes provides evidence that F. burgessii is part of a unique monophyletic lineage of species in the genus Fusarium.

One stop shop: backbones trees for important phytopathogenic genera: I (2014)

“…Over 1,500 names are listed in MycoBank; Leslie and Summerell (2006) documented 72 species, although this was not intended as a monograph, and many of species have been described in the intervening period (e.g. Jacobs et al 2010;Laurence et al 2011;Schroers et al 2009;Walsh et al 2010). Recent investigations into a number of important species (e.g.…”

Fusarium species associated with plants in Australia

“…This species has been recovered from Australian soils in non-cultivated ecosystems and the rhizosphere of indigenous Gossypium species (Laurence et al 2011). Pathogenicity and toxin production is unknown; however, this species is likely to be a soil inhabiting saprobe.…”

Six novel species of Fusarium from natural ecosystems in Australia

“…Biogeographical surveys in natural ecosystems of Australia have resulted in the discovery of novel species including F. nygamai (Burgess and Trimboli 1986), F. beomiforme (Nelson et al 1987), F. babinda (Summerell et al 1995), F. aywerte, F. nurragi (Benyon et al 2000), F. gaditjirri (Phan et al 2004), F. lyarnte, F. werrikimbe (Walsh et al 2010) and F. burgessii (Laurence et al 2011); as well as novel species complexes (Laurence et al 2011); in addition to high levels of intraspecific diversity in plant pathogenic Fusarium species (Laurence et al 2012(Laurence et al , 2014. The fact that novel species have been discovered in each of these surveys suggests that the species diversity in Australia and indeed globally is yet to be fully determined.…”