Alternaria embellisia
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Author(s): J.H.C. Woudenberg, J.Z. Groenewald, M. Binder and P.W. Crous
Source: Studies in Mycology, 2013, 75, p. 191
Alternaria embellisia Woudenb. & Crous 2013
This fungus infects onions and garlic, causing bulb canker or skin blotch. In the field, the disease occurs in patches showing decaying bulb and stem sheaths, as well as wilting of lower leaves (Koike & Rooney-Latham, 2012). In storage, symptoms start as greyish spots on the outer scales of the bulbs, which later turn black and decay.
A. embellisia is the type species of section Embellisia, a group of Alternaria species that have been described by Woudenberg et al. (2013) as having "simple, septate conidiophores, straight or with geniculate sympodial proliferation. Condia are solitary, ovoid to subcylindrical, straight to inequilateral, transseptate; septa can be thick, dark and rigid in contrast to the external wall. Chlamydospores may occur."
Synonyms:
Embellisia allii
