Peronospora meliloti Sydow, 1923
on Melilotus
Melilotus albus, Belgium, prov. Antwerp, Mol, Heidenhuizen © Carina Van Steenwinkel
infected leaf, underside
tip of the conidiophore (congo-red staining)
Melilotus albus, Nieuwendam
conidiophore (detail)
Melilotus spec., Flevoland, Reve-Abbertbos, leg Hans Jonkman
first bifurcations of the stem of the conidiophore
gall
at the underside of the leaf spots a brownish purple down consisting of vertical conidiophores that apically several times are dichotomously branching, each branch ending upon an ovoid conidium.
host plants
Fabaceae, monophagous
Melilotus albus, altissimus, dentatus, indicus, officinalis, segetalis, sulcatus.
references
Brandenburger (1985a: 304), Doppelbaur, Huber & Poelt (1965a), García-Blázquez, Constantinescu, Tellería & Martín (2007a), García-Blázquez, Göker Voglmayr, Martín ao (2008a), Göker, García-Blázquez, Voglmayr ao (2009a), Gustavsson (1991a), Jage, Klenke, Kruse ao (2016a, 2017a), Klenke & Scholler (2015a), Kruse (2014a, 2019a), Müller (2015a), Müller & Kokeš (2008a), Ruszkiewicz-Michalska (2006a), Săvulescu (1948a), Scheuer & Bechter (2012a), Thines, Telle, Ploch & Runge (2009b), Voglmayr (2003a).