Abstract
Anthracnose crown rot (ACR) has been observed in greenhouses during the nursery and harvest seasons in Gangwon Province, Korea. Infected plants showed black leaf spot, dark sunken pink conidial masses on petioles, wilting, and eventually death. Five isolates were obtained from the lesions of strawberry plants and were identified as a Colletotrichum gloeosporioides species complex based on their cultural and morphological characteristics. Multilocus sequence analysis of actin, calmodulin, chitin synthase, glyceraldehyde-3-phophate dehydrogenase genes, and internal transcribed spacer rDNA regions showed that the isolates formed a monophyletic group with the type strain of
Figures & Tables
Fig. 1.Anthracnose symptoms on strawberry of Colletototrichum siamense . (A) Strawberry plant with anthracnose crown rot girdling on a petiole. (B) Wilting plant. (C) Longitudinal section of an infected crown showing marbled reddish-brown necrosis. (D) Symptoms of artificial inoculation test with an isolate.