Fusarium oxysporum and Fusarium avenaceum associated with yield-decline of pyrethrum in Australia
Azin Moslemi, Peter K Ades, Tim Groom, Marc E Nicolas, Paul WJ Taylor
European Journal of Plant Pathology | SPRINGER | Published : 2017
Fusarium species were isolated from roots, crowns, basal petioles but rarely from the leaves of infected pyrethrum (Tanacetum cinerariifolium) plants showing poor growth and stunting in yield-decline sites of northern Tasmania and the Ballarat region of Victoria, Australia. Multigene phylogenetic analyses using the internal transcribed spacer (ITS), the polymerase II second largest subunit (RPB2) and the partial translation elongation factor 1-Î± (EF1) sequences, identified F. oxysporum and F. avenaceum as the most frequently isolated species associated with root and crown diseases of pyrethrum, and F. equiseti and F. venenatum at a low incidence. Pathogenicity trials confirmed that F. oxysp..View full abstract
We would like to thank Botanical Resources Australia - Agricultural Services Pty. Ltd. for providing pyrethrum seedlings and supplementary funding for this project. Azin Moslemi was supported by a Melbourne University International Research Scholarship.