Research article    |    Open Access
Helia 2015, Vol. 38(63) 149-162

Recent Changes in the Pathogenic Variability of Plasmopara Halstedii (Sunflower Downy Mildew) Populations from Different Continents

Ferenc Viranyi Thomas J. Gulya Denis Labrouhe Tourvieille

pp. 149 - 162

Publish Date: December 01, 2015  |   Single/Total View: 3/17   |   Single/Total Download: 5/18


Abstract

The obligate biotrophic Oomycete Plasmopara halstedii causal agent of sunflower downy mildew is capable of producing new pathogenic races over time. Although changes in the P. halstedii race composition were reviewed for the first time in 2007 since then the pathogen has continued to change its virulence character dramatically. There was a need therefore to update information on pathogenic diversity of P. halstedii by making accounts of the temporal and spacial changes in the pathogen populations in North and South America and Europe. This paper based on current publications and personal communications attempts to present an accurate overview of races in Europe and Americas for the last 7 years.

Keywords: pathogenic race, Plasmopara halstedii, temporal and spacial change


How to Cite this Article?

APA 7th edition
Tourvieille, F.V.T.J.G.D.L. (2015). Recent Changes in the Pathogenic Variability of Plasmopara Halstedii (Sunflower Downy Mildew) Populations from Different Continents. Helia, 38(63), 149-162.

Harvard
Tourvieille, F. (2015). Recent Changes in the Pathogenic Variability of Plasmopara Halstedii (Sunflower Downy Mildew) Populations from Different Continents. Helia, 38(63), pp. 149-162.

Chicago 16th edition
Tourvieille, Ferenc Viranyi Thomas J. Gulya Denis Labrouhe (2015). "Recent Changes in the Pathogenic Variability of Plasmopara Halstedii (Sunflower Downy Mildew) Populations from Different Continents". Helia 38 (63):149-162.