Microbotryum cordae (Liro) Deml & Prillinger, 1991

on Persicaria

Microbotryum cordae on Persicaria hydropiper

Persicaria hydropiper, Belgium, prov. Limbourg, Bocholt, Smeetshof, 29.viii.2019 © Carina Van Steenwinkel

Microbotryum cordae on Persicaria hydropiper

infected inflorescence

Microbotryum cordae on Persicaria hydropiper

not alle flowers are infected, the fungus is not fully systemic

Microbotryum cordae on Persicaria hydropiper

spore mass in galled flower bud

Microbotryum cordae: spores

microscopical image

Microbotryum cordae: spores

spores

Microbotryum cordae: spores

spores, another inago

Microbotryum cordae on Persicaria maculosa

Persicaria maculosa, Loenen (Ge), 18.x.2017 © Arnold Grosscurt: first signs

Microbotryum cordae on Persicaria maculosa

somewhat further advanced infection

Microbotryum cordae on Persicaria maculosa

some flowers already are disintegrating

Microbotryum cordae on Persicaria maculosa

destroyed inflorescence

Microbotryum cordae: spores

spores

gall

The flower buds are swollen and enlarged; their contents are transformed into a reddish brown to flesh-coloured mass of spores.

host plants

Polygonaceae, narrowly monophagous

Persicaria dubia, foliosa, hydropiper, maculosa, minor.

synonyms

Ustilago cordae Liro, 1924; U. anomala var. cordae (Liro) Saville, 1953; Bauhinus cordae (Liro) Denchev, 1997; U. persicaria Ciferri, 1931; U. Liro, 1924; U. polygoni-minoris Liro, 1938; U. muricata (Cesati) Liro, 1924; U. anomala var.muricata (Cesati) Lindeberg, 195.

references

Brandenburger (1985a: 88), Buhr (1965a), Dauphin & Aniotsbehere (1997a), Klenke & Scholler (2015a), Koops (2013a), Lutz & Vánky (2009a), Melzer, Pittoni, Poelt & Scheuer (1984a), Redfern & Shirley (2011a), Roskam (2009a), Savchenko & Heluta (2012a), Scholz & Scholz (2013a), Spooner & Legon (2006a), Tomasi (2014a), Vánky (1994a), Woods, Chater, Smith ao (2018a).

mod 31.viii.2019