Invasive Species Compendium

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Abstract Full Text

First report of root rot of faba bean caused by Rhizoctonia zeae in Turkey.


In August 2010, during a survey for pathogenic fungi of faba bean, necrotic lesions were observed on the hypocotyl and roots in Erzurum (Turkey). A fungus with orange colonies turning darker with age was consistently recovered. The isolate produced sclerotia on agar surface or when submerged in the medium. Superficial sclerotia were more uniform and nearly spherical, mostly 0.2-0.5 mm in diameter, initially orange and then brown. Hyphae were multiseptate and multinucleate. Based on these morphological traits, the fungus was identified asR. zeae [ Waitea circinata]. This is thought to be the first record of this fungus from faba bean for Turkey.