Plant Parasites of Europe

leafminers, galls and fungi

Erysiphe sedi

Erysiphe sedi Braun, 1981

on Crassulaceae

Erysiphe sedi on Sedum spectabile

Sedum spectabile, Belgium, prov. Antwerp, Mol, 25.x.2021 © Carina Van Steenwinkel

Erysiphe sedi on Sedum spectabile

cleistothecia

Erysiphe sedi on Sedum spectabile

cleistothecium, detail

Erysiphe sedi on Sedum spectabile

extruded asci

Erysiphe sedi on Sedum spectabile

asci, detail

Erysiphe sedi on Sedum spectabile

Sedum spectabile, Belgium, prov. Antwerp, Geel, 5.vii.2020 © Carina Van Steenwinkel

Erysiphe sedi on Sedum spectabile

strong infection

Erysiphe sedi: appressoria

appressoria

Erysiphe sedi: conidiophore

conidiophore

Erysiphe sedi: conidia

conidia

Erysiphe sedi: conidia

conidia; measurements in this sample ranged 15-21 x 15-46.5 µm

Erysiphe sedi: germinating conidium

germinating conidium

gall

mycelium amphigenous, well developed, often in dense white patches, ± persistent. Appressoria lobed, single or paired. Conidia solitary, elliptic, without fibrosin bodies. Foot-cell of conidiophore straight. Cleistothecia with 4-9 asci, containing 2-5 spores. Appendages 5-20, sub-equatoial, 0.5-3 x the diameter; they are mycelioid, septate, unbranched, eventually brown.

host plants

Crassulaceae, oligophagous

Aeonium decorum; Hylotelephium erythrostictum, maximum, pallescens, telephium; Kalanchoe pinnata; Phedimus selskianus; Rhodiola rosea; Sedum aizoon, album, confusum, forsterianum, hispanicum, hybridum, kamtschiaticum, mexicanum, sarmentosum, spectabile, urvillei; Umbilicus oppositifolius.

references

Ale-Agha, Boyle, Braun ao (2008a), Beenken & Senn-Irlet (2016a), Braun (1995a), Braun & Cook (2012a), Jage, Klenke & Kummer (2010a), Klenke & Scholler (2015a), Kruse, Thiel, Frauenberger ao (2019a).

Last modified 30.xi.2021