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Pathogenicity and Vegetative Compatibility of Verticillium dahliae Kleb. Isolates from Olive in Morocco by M. Cherrab; A. Bennani; P. M. Charest; M. N. Serrhini is a Agricultural and Biological Sciences article available to read on EtoBox.

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## Abstract Thirty‐eight strains of __Verticillium dahliae__ Kleb. from diseased olive stems originating from the most important regions of olive in Morocco, were tested by vegetative compatibility analysis to investigate their genetic diversity. Two media, water agar chlorate (WAC) and minimal medium chlorate (MMC) were used to induce the __nit__‐mutants. The WAC medium generated a higher frequency of __nit__‐mutants than MMC medium. Based on complementarity of nit‐mutants, 47% of isolates were assigned to VCG4B, 32% in VCG2 (A or B) and the 18% remaining isolates could not be grouped to any VCGs tested. These latter belonged to southern regions. Pathogenicity and aggressivity of twelve isolates from this population were assessed on four plant species which are frequently intercropped with olives. These were tomato, eggplant, cotton and pepper. All isolates were pathogenic and highly aggressive on cotton and eggplant. On cotton, the isolates from southern regions induced more severe symptoms than those from northern regions. Weak to moderate symptoms were induced by all isolates on tomato and they differed in aggressivity. No isolate was pathogenic on pepper, while four isolates f

Who reads Pathogenicity and Vegetative Compatibility of Verticillium dahliae Kleb. Isolates from Olive in Morocco?

Author

M. Cherrab; A. Bennani; P. M. Charest; M. N. Serrhini

Publisher

John Wiley and Sons; Wiley (Blackwell Publishing); Blackwell Publishing Inc.; Wiley (ISSN 0931-1785)

Published

2002

Language

EN

Field

Agricultural and Biological Sciences (Life Sciences)