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Cryphonectria canker on Tibouchina in Colombia

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Cryphonectria canker, caused by , has limited the development of new plantations in tropical and subtropical regions. The pathogen is commonly found on , but its occurrence on other hosts in the has also been documented. In this study is reported as the causal agent of a serious canker disease on spp. () in Colombia. We used morphological studies, pathogenicity tests on and , and a phylogenetic study using partial ribosomal DNA sequence data. This is the first record of on a host outside the .

Un chancre à Cryphonectria sur Tibouchina en Colombie

Le chancre àCryphonectria cubensis a limité le développement de nouvelles plantations d’Eucalyptus dans les régions tropicales et subtropicales. La parasite est couramment trouvé sur Eucalyptus mais son existence sur d’autres Myrtacées hôtes est aussi connue. Dans cette étude, C. cubensis est mentionné comme agent causal d’une grave maladie chancreuse sur Tibouchina spp. (Melastomataceae) en Colombie. Nous avons eu recours à la morphologie, à des tests de pouvoir pathogène sur Eucalyptus et Tibouchina, et à la phylogénie par séquençage partiel de l’ADN ribosomal. Il s’agit de la première mention de C. cubensis sur un hôte n’appartenant pas aux Myrtacées.

Document Type: Research Article

Affiliations: 1: Forestry and Agricultural Biotechnology Institute, University of Pretoria, 74 Lunnon Road, Hillcrest, Pretoria, South Africa 0002; Email:, Email: 2: Smurfit Carton de Colombia, Cali, Colombia and Wright Forest Management Consultants Inc., Cary NC, USA 3: Department of Genetics, University of Pretoria, Pretoria, South Africa 4: Department of Microbiology and Plant Pathology, University of Pretoria, Pretoria, South Africa

Publication date: October 1, 2001

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