Assignment of Colletotrichum coccodes isolates into vegetative compatibility groups using infrared spectroscopy: a step towards practical application

Colletotrichum coccodes (C. coccodes) is a pathogenic fungus that causes anthracnose on tomatoes and black dot disease in potatoes. It is considered as a seed tuber and soil-borne pathogen that is difficult to control. C. coccodes isolates are classified into Vegetative Compatibility Groups (VCGs)....

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Bibliographic Details
Published in:Analyst (London) 2015-05, Vol.140 (9), p.3098-3106
Main Authors: Salman, A, Shufan, E, Lapidot, I, Tsror, L, Moreh, R, Mordechai, S, Huleihel, M
Format: Article
Language:English
Subjects:
Colletotrichum - chemistry
Colletotrichum - classification
Colletotrichum - isolation & purification
Discriminant Analysis
Lycopersicon esculentum - microbiology
Plant Diseases - microbiology
Principal Component Analysis
Solanum tuberosum - microbiology
Spectrophotometry, Infrared
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Summary:Colletotrichum coccodes (C. coccodes) is a pathogenic fungus that causes anthracnose on tomatoes and black dot disease in potatoes. It is considered as a seed tuber and soil-borne pathogen that is difficult to control. C. coccodes isolates are classified into Vegetative Compatibility Groups (VCGs). Early classification of isolates into VCGs is of great importance for a better understanding of the epidemiology of the disease and improving its control. Moreover, the differentiation among these isolates and the assignment of newly-discovered isolates enable control of the disease at its early stages. Distinguishing between isolates using microbiological or genetic methods is time-consuming and not readily available. Our results show that it is possible to assign the isolates into their VCGs and to classify them at the isolate level with a high success rate using Principal Component Analysis (PCA) and Linear Discriminant Analysis (LDA).
ISSN:0003-2654
1364-5528
DOI:10.1039/c5an00213c