Verticillium fungicola var. fungicola : comparison of some Mexican and French isolates
Comparación de algunas cepas mexicanas y francesas de Verticillium fungicola var. fungicola
Résumé
Isolates of Verticillium fungicola collected in 2002 in the Veracruz State, Mexico, and previously identified as V. fungicola var. fungicola, were compared to French isolates for genetic polymorphism and diversity in some physiological traits. Results were analysed based on studies of a larger group of European V. fungicola var. fungicola. RAPD analyses showed that Mexican isolates were genetically similar to those collected in Western Europe over the period 1987-2000. Mycelial growth rate, antibiosis effect against their host Agaricus bisporus, and in vitro sensitivity to the fungicide chlorothalonil did not distinguish the Mexican isolates from the European isolates studied.
Se compararon cepas de Verticillium fungicola recolectadas en 2002 en el Estado de Veracruz, México, previamente identificadas como V. fungicola var. fungicola, con cepas francesas para observar su diversidad de polimorfismo genético y algunos aspectos fisiológicos. Los resultados se analizaron tomando en cuenta estudios con un mayor número de cepas europeas de V. fungicola var. fungicola. Los análisis de RAPD muestran que las cepas mexicanas son genéticamente similares a aquellas colectadas en el Oeste de Europa en el período 1987-2000. El crecimiento micelial, el efecto de antibiosis contra su hospedero Agaricus bisporus y la sensibilidad in vitro al fungicida chlorothalonil no permiten distinguir las cepas mexicanas de las europeas.