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, 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 2-4 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 9.vii.2020