@ARTICLE{TreeBASE2Ref26152,
author = {Azin Moslemi and Peter Ades and Tim Groom and Pedro W. Crous and Marc E. Nicolas and Paul W.J. Taylor},
title = {Paraphoma crown rot of pyrethrum (Tanacetum cinerariifolium) },
year = {2016},
keywords = {Fusarium avenaceum, Fusarium oxysporum, multi-gene analyses, Paraphoma vinacea, Tanacetum cinerariifolium},
doi = {},
url = {http://},
pmid = {},
journal = {Plant Disease (APS Journal)},
volume = {},
number = {},
pages = {},
abstract = {Pyrethrum (Tanacetum cinerariifolium) is commercially cultivated for the extraction of natural pyrethrin insecticides from the oil glands inside seeds. Yield-decline has caused significant yield losses in Tasmania during the last decade. A new pathogen of pyrethrum causing crown rot and reduced growth of the plants in yield-decline affected fields of northern Tasmania was isolated from necrotic crown tissue and described as Paraphoma vinacea. Multigene phylogenetic identification of the pathogen also revealed that P. vinacea was a new species different from other Paraphoma type strains. Glasshouse pathogenicity experiments showed that P. vinacea significantly reduced below-ground and total biomass of pyrethrum plants two months after inoculation. Dull-tan to reddish-brown discoloration of the cortical and sub-cortical crown tissue was observed in 100% of the infected plants. Paraphoma vinacea infected 75% of the plants inoculated with root dip and soil drench inoculation techniques in an inoculation optimization experiment. Paraphoma vinacea, the causal agent of Paraphoma crown rot disease, represents an important pathogen that will negatively impact the commercial cultivation of pyrethrum in Tasmania.}
}
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Citation title: "Paraphoma crown rot of pyrethrum (Tanacetum cinerariifolium) ".
