Australasian Plant Pathology (2012) 41, 675-686

N. Vaghefi, S.J. Pethybridge, R. Ford, M.E. Nicolas, P.W. Crous and P.W.J. Taylor (2012)
Stagonosporopsis spp. associated with ray blight disease of Asteraceae
Australasian Plant Pathology 41 (6), 675-686
Abstract: Ray blight disease of pyrethrum (Tanacetum cinerariifolium) is shown to be caused by more than one species of Stagonosporopsis. The Australian pathogen, previously identified as Phoma ligulicola var. inoxydabilis, represents a new species described as Stagonosporopsis tanaceti based on morphological characters and a five-gene phylogeny employing partial sequences of the actin, translation elongation factor 1-alpha, internal transcribed spacers and 5.8S of the nrDNA, 28S large subunit and beta-tubulin 2 gene sequences. Furthermore, the two varieties of Stagonosporopsis ligulicola are elevated to species level as S. chrysanthemi and S. inoxydabilis based on their DNA phylogeny and morphology.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: English)
Link to article at publishers website
Database assignments for author(s): Paul W.J. Taylor, Pedro W. Crous, Sarah J. Pethybridge, Rebecca Ford

Research topic(s) for pests/diseases/weeds:
identification/taxonomy
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Stagonosporopsis tanaceti	Pyrethrum (Tanacetum cinerariifolium)	Australia (South+SE)
	Stagonosporopsis inoxydabilis	Pyrethrum (Tanacetum cinerariifolium)
	Stagonosporopsis chrysanthemi	Pyrethrum (Tanacetum cinerariifolium)