Neocosmospora vasinfecta

Neocosmospora • Hypocreales • Sordariomycetes • Ascomycota • fungi • plant diseases • pests-diseases-weeds

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Neocosmospora vasinfecta - a-b) cultures, c) perithecia, d) detail of peridial cells, e-f) ostiolar opening, g) asci, h) ascospores, i-k) conidiophores, l-m) conidia - scale bars: c1-c3 = 200 μm; d1–e = 20 μm; h4–h6 = 5 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. 176

Neocosmospora vasinfecta E.F. Sm. 1899

This fungus is widely distributed and infects a variety of crops, including cotton, ground nuts and soybeans. It has been mainly described as causing root rot and foot rot diseases, but also stem rot, interveinal foliar chlorosis, and lower leaf abscission (e.g. Greer et al., 2015). Infected plants often wilt and die prematurely. N. vasinfecta has been further reported to be a saprophyte, infesting stored organic products, as well as a human pathogen.

In contrast to many other species of Neocosmospora, it produces smooth-walled perithecia and mostly 0-septate, rarely 1-septate ascospores with rugose to cerebriform ornamentation. Additionally, it lacks falcate, multiseptate conidia.

Synonyms:
Fusarium neocosmosporiellum

N. vasinfecta is the type species of the genus Neocosmospora. For a taxonomic review see Sandoval-Denis et al. (2019).