Septoria aegopodii (Roth) Petrak, 1921

on Aegopodium

Septoria aegopodii on Aegopodium podagraria

Aegopodium podagraria, Hungary, Mosonmagyaróvár, 23.v.2018 © László Érsek

Septoria aegopodii on Aegopodium podagraria

infested leaf, upper side

Septoria aegopodii on Aegopodium podagraria

underside

Septoria aegopodii on Aegopodium podagraria

acervuli

Septoria aegopodii on Aegopodium podagraria

extruded conidia massa

Septoria aegopodii: galls on Aegopodium podagrariae

Aegopodium podagraria, Tongeren: underside of the leaf © Arnold Grosscurt

Septoria aegopodii on Aegopodium podagraria

Aegopodium podagraria, Overveen: detail of the underside, with acervuli

Septoria aegopodii on Aegopodium podagraria

From the acervuli a mass of conidia is squeezed out on the upperside of the leaf

Septoria aegopodii: conidia

the conidia are extremely long and thin

Mycosphaerella podagrariae: pseudothecia on Aegopodium podagraria

Aegopodium podagraria, Leiden, leg. Karel Brussee: in the course of the winter pseudothecia develop at the underside of the leaf: almost superficial globular bodies, in which ascospores are formed.

host plants

Apiaceae, oligophagous

Aegopodium podagrariae; Pimpinella saxifraga.

synonyms

Asteromella aegopodii Allescher, 1895; Mycosphaerella podagrariae (Roth) Petrak, 1921; Phyllachora podagrariae (Roth) Karsten, 1873; Phloeospora aegopodii Grove, 1935; Phyllosticta aegopodii Allescher, 1895; Septoria podagrariae Lasch, 1843.

notes

The infestation reminds of the one by Puccinia aegopodii.

references

Blumer (1946a), Doppelbaur & Doppelbaur (1973a), Ellis & Ellis (1997a), Jage, Kruse, Kummer ao (2013a), Jage, Scholler & Klenke (2010a). Kruse (2019a), Ludwig (1974a), Kozłowska, Mułenko & Heluta (2015a), Redfern & Shirley (2011a), Ruszkiewicz-Michalska (2006a, 2016a), Verkley, Quaedvlieg, Shin & Crous (2013a).

mod 14.vii.2019