Golovinomyces bolayi Takamatsu, Lebeda & Gotz, 2019

polyfaag, mainly Asteraceae-Lactucinae

parasite

Mycelium amphigenous, also on stems, thin, forming white patches, evanescent to persistent; appressoria poorly developed to nipple-shaped, solitary. Conidiophores
80–230(−290) μm long (without conidia), basal septum at the junction with the mother
hypha or only slightly elevated; foot-cell cylindrical, followed by 1–3(–4) shorter cells. Cleistothecia (only on Cichorium and Lactuca) amphigenous, diameter usually 80–130 μm; appendages numerous, 0.4-4 x the diameter, arising from the lower half, mycelioid, simple, brown at their base; asci 5–25, two-spored.

host plants

Arabidopsis thaliana; Campanula rapunculoides; Cichorium endivia, intybus, pumilum; Cucumis sativus; Cymbalaria muralis; Incarvillea mairei; Kalanchoe blossfeldiana; Lactuca alpina, peregrina, quercina, saligna, sativa, serriola, sibirica, tatarica, tuberosa, viminalis; Mycelis muralis; Petunia x hybrida; Taraxacum officinale; Torenia fournieri.

synonyms

Golovinomyces orontii: auctorum

references

Braun, Shin, Takamatsu ao (2019a).

mod 14.iii.2019