Inicio  /  Forest Systems  /  Vol: 21 Núm: 2 Par: 0 (2012)  /  Artículo
ARTÍCULO
TITULO

Susceptibility of common alder (Alnus glutinosa) seeds and seedlings to Phytophthora alni and other Phytophthora species

M. M.U. Haque    
J.J. Díez Casero    

Resumen

Phytophthora alni is a highly destructive host specific pathogen to alders (Alnus spp.) spreading all over Europe. Recently this pathogen has been reported to cause diseases in common alder (Alnus glutinosa) in Spain. Seeds and seedlings of A. glutinosa were tested in vitro for their susceptibility to alder Phytophthora and other Phytophthora species. Isolates of P. alni ssp. alni, P. cinnamomi, P. citrophthora, P. nicotianae and P. palmivora were used in the experiments. Seeds and seedlings were inoculated with a zoospore suspension and uniform mycelial blocks of agar of the Phytophthora species. Susceptibility was calculated in terms of pathogen virulence on seed germination and seedling mortality 42 and 67 days after inoculation respectively. Seed germination and seedling mortality rates varied differently among the isolates used. Results implied that common alder and its seeds and seedlings are at risk to be infected by P. alni. In addition, other Phytophthora species are able to infect this kind of material showing their relative host non-specificity. This is one important finding concerning alder regeneration in infected areas, and the possibility of disease spread on this plant material.

 Artículos similares

       
 
S. Denman, S. A. Kirk, C. M. Brasier, J. F. Webber     Pág. 512 -
Revista: PLANT PATHOLOGY

 
Felcher, K. J. Douches, D. S. Kirk, W. W. Hammerschmidt, R. Li, W.     Pág. 238 - 245

 
Adorada, D. L.; Biles, C. L.; Liddell, C. M.; Fernández-Pavı&     Pág. 719 - 726
Revista: PLANT PATHOLOGY

 
Burgess, T.; McComb, J. A.; Colquhoun, I.; Hardy, G. E. StJ.     Pág. 797 - 806
Revista: PLANT PATHOLOGY