Neocosmospora noneumartii

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Neocosmospora noneumartii - a+b) cultures, c-e) sporodochia, f-g) chlamydospores, h-k) aerial conidiophores, l-n) aerial microconidia and macroconidia, o-p) sporodochial conidiophores and phialides, q) sporodochial conidia - scale bars: c = 100 μm, d–e = 50 μm, all others = 10 μm (click on image to enlarge it)
Author(s): M. Sandoval-Denis, L. Lombard and P.W. Crous
Source: Persoonia (2019), 43, p. 147

Neocosmospora noneumartii Sand.-Den. & Crous 2019 - (Eumartii wilt of potato)

This fungus causes the Eumartii wilt disease of potato and tomato. Eggplants and green pepper can also become infected. The main symptoms are root and collar rot. On potatoes, the disease also causes dry rot of the stem end of the tubers (e.g. see Romberg & Davis, 2007). N. noneumartii forms large, multiseptate (up to 6-septa) sporodochial conidia. The disease appears to be widely distributed. It has been mainly reported from the Americas, however the typus has been collected in Israel.

Eumartii wilt has been described under the names Fusarium eumartii and Fusarium solani f.sp. eumartii. However, taxonomic studies on the original material of F. eumartii have concluded that it is a different species and that this name should be treated as a synonym of Neocosmospora solani (Sandoval-Denis et al., 2019).