Six novel species of Fusarium from natural ecosystems in Australia

Abstract

Six new species of Fusarium associated with soil and plant hosts from ecosystems of minimal anthropogenic disturbance in Australia are described. Fusarium coicis from Coix gasteenii, F. goolgardi from Xanthorrhoea glauca, F. mundagurra from soil and Mangifera indica, F. newnesense from soil, F. tjaetaba from Sorghum interjectum and F. tjaynera from soil, Triodia microstachya, Sorghum interjectum and Sorghum intrans. Morphology and phylogenetic analysis of EF-1α, RPB1 and RPB2 sequence data were used to delineate species boundaries. The new species were phylogenetically distributed in the Fusarium sambucinum, F. fujikuroi, and F. chlamydosporum species complexes, and two novel species complexes. These six new species have particular phylogeographic significance as not only do they provide further insight into the geographic patterns of Fusarium evolution but also challenge current phylogeographic hypotheses.

Phylogenetically Diverse Fusarium Species Associated with Sorghum (Sorghum Bicolor L. Moench) and Finger Millet (Eleusine Coracana L. Garten) Grains from Ethiopia

“…Nowadays, there is an increased interest to utilize multilocus approaches to assess population structures of fungi, including that of Fusarium spp. [11][12][13][14].Since the early report in 1935 [15], much research has been conducted to resolve the diversity of the genus Fusarium, including phylogenetic relationships between and within species. On the other hand, research on Fusarium spp.…”

The Shifting Mycotoxin Profiles of Endophytic Fusarium Strains: A Case Study

“…Recent evaluations of the mycotoxin-producing ability indicate that Fusarium phylogenetic relationship may vary, and non-conforming strains, new species or lineages often result after the exploration of new ecological contexts, particularly those involving endophytic fungi [53][54][55]. In fact, an intriguing ability to synthesize unexpected SMs can be ascribed to endophytes, which are able to establish physical contacts and eventually interact through horizontal gene transfer (HGT) with both plants and other microorganisms living in this particular ecological niche [56,57].…”

Gene Cloning, Recombinant Expression, Characterization, and Molecular Modeling of the Glycolytic Enzyme Triosephosphate Isomerase from Fusarium oxysporum

“…For that reason, the identification of species has been essential to analyze and study the biological behavior of the Fusarium species. In this sense, the identification of many species of Fusarium were classified according to their host associations and/or morphological characteristics, although the use of molecular techniques, such as PCR (amplifications of ribosomal/gene regions) and sequencing, has allowed a better differentiation and identification of these species [2,3]. Several of these fungal species are pathogenic mainly for plants, causing wilting and rotting of numerous agricultural crops.…”