A new fungus on Cyperus iria

Thind, K. S. ; Rawla, G. S. (1961) A new fungus on Cyperus iria American Journal of Botany, 48 (10). pp. 859-862. ISSN 0002-9122

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Official URL: http://www.jstor.org/pss/2439525


Duosporium cyperi gen. et sp. nov., collected on Cyperus iria Linn., is characterized by the production of 2 types of conidia, macroconidia and microconidia. The macroconidia are straight, cylindrical, triseptate, with their middle cells dark brown, long, thick-walled, and end cells much paler or subhyaline, short, thin-walled, the middle and the end cells being equally wide. The microconidia are nonseptate, spherical, dark brown, prominently verrucose, and produced apically on the conidiophores like the macroconidia; occasionally also formed as secondary conidia on germinating 3-septate macroconidia in culture. The formation of 2 distinct types of conidia in Duosporium and the features of its macroconidia characteristically differentiate it from its close relative Helminthosporium, although Duosporium cyperi is not unique among fungi in producing 2 types of conidia.

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Deposited On:28 Jul 2011 14:48
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