Vegetative Compatibility Groups in Colletotrichum coccodes, the Causal Agent of Black Dot on Potato

Variability in morphology and aggressiveness among North American vegetative compatibility groups of Colletotrichum coccodes.

North American isolates of Colletotrichum coccodes, representing six vegetative compatibility groups (NA-VCG), were used to study morphological and pathogenic variability. The objective was to determine if variability in conidial and microsclerotial size was related to pathogenicity. Significant differences were detected in length, width, and length/width ratios of conidia as well as in the len...

Field Resistance to Potato Stem Colonization by the Black Dot Pathogen Colletotrichum coccodes

Nadav Nitzan, Vegetable Forage Crops and Research Unit, USDA-ARS, Prosser, WA 99350; Marc A. Evans, Department of Statistics, Washington State University, Pullman 99164; Tom F. Cummings and Dennis A. Johnson, Department of Plant Pathology, Washington State University, Pullman 99164; Dallas L. Batchelor, Lamb-Weston, Pasco, WA 99301; Chris Olsen, L.J. Olsen, Inc., Othello, WA 99344; Kathleen G. ...

Genetic Variability in the Potato Pathogen Colletotrichum coccodes as Determined by Amplified Fragment Length Polymorphism and Vegetative Compatibility Group Analyses.

ABSTRACT Amplified fragment length polymorphism (AFLP) using three primer sets was used to characterize 211 Colletotrichum coccodes isolates from North America, 112 of which were assigned to six vegetative compatibility groups (VCGs) using nitrate nonutilizing (nit) mutants. These isolates clustered into five corresponding groups by unweighted pairgroup method with arithmetic means-based cluste...

First Report of Colletotrichum fructicola as the causal agent of Anthracnose on Common Bean and Cowpea

a study of the genetic diversity of gibberella intermedia,the common causal agent of rice bakanae disease in mazandaran province, based on vegetative compatibility groups

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