Podosphaera dipsacacearum (Tulasne & Tulasne) Braun & Takamatsu, 2000

on Caprifoliaceae

Podosphaera dipsacacearum on Dipsacus fullonum

Dipsacus fullonum, Belgium, prov. Limburg, Diepenbeek, Nietelbroeken © Carina Van Steenwinkel

Podosphaera dipsacacearum on Dipsacus fullonum

detail

Podosphaera dipsacacearum on Dipsacus fullonum

underside of an infected leaf

Podosphaera dipsacacearum: conidia chain

conidia chain

Podosphaera dipsacacearum: appressoria

appressoria

Podosphaera dipsacacearum: conidia

conidia

gall

mycelium amphigenous. Appressoria indistinct to nipple-shaped. Conidia formed in chains, with fibrosin bodies. Cleistothecia with a single ascus, containing usually eight spores. Appendages 10-40, sub-equatorial, 0.5-4 x the diameter, mycelioid, flaccid, brown, septate, unbranched.

host plants

Caprifoliaceae, oligophagous

Cephalaria alpina, microcephala, syriaca, uralensis; Dipsacus fullonum, laciniatus, pilosus, sativus, strigosus; Knautia arvensis, drymeia, integrifolia, longifolia, macedonica; Lomelosia caucasica, palaestina, stellata; Morina persica; Pterocephalus “papposus”; Scabiosa lucida, ochroleuca.

synonyms

Sphaerotheca dipsacacearum (Tulasne & Tulasne) Junell, 1967.

references

Braun (1995a, 2016a), Braun & Cook (2012a), Bresinsky (2016a), Jage, Klenke & Kummer (2010a), Klenke & Scholler (2015a), Kruse (2014a, 2019a).

mod 30.vii.2019