Submitted to: Plant Disease
Publication Type: Peer reviewed journal
Publication Acceptance Date: 7/6/2004
Publication Date: 8/1/2004
Citation: Berner, D.K., Eskandari, F., Rossman, A.Y., Aime, M.C., Kashefi, J. 2004. First report of anthracnose of crupina vulgaris caused by colletotrichum cf. gloeosporioides. Plant Disease. 88:1161. Interpretive Summary: Common crupina is a target of biological control efforts in the U.S. Diseased and dying common crupina plants were found in Greece in 2002, and the fungus Colletotrichum was determined to cause the disease. In the laboratory, it was found that this fungus was distinct from other fungi in the Colletotrichum group and that this particular fungus has potential as a biological control agent of common crupina in the U.S.
Technical Abstract: Dying C. vulgaris plants were found along a roadside from Volos to Portaria, Greece. Dying plants had irregular lesions extending up the main stems of plants and along the leaves. In the laboratory acervuli and setae typical of Colletotrichum were observed. Plants were inoculated with Colletotrichum 02-030. Symptoms developed after: 7 days on 16-week-old plants, 14 days on 12-week-old plants, and 61 days on 8-week-old plants. No symptoms developed on 4- and 6-week-old plants or control plants. Colletotrichum 02-030 was re-isolated from symptomatic plants. This isolate fit the morphology of Colletotrichum cf. gloeosporioides. Sequences of ITS and 28S ribosomal DNA genes indicated that the isolate on Crupina is distinct from all other Colletotrichum and Glomerella spp. isolates. No species of Colletotrichum has been reported previously on any species of Crupina .