Pathogenicity of postfire ascomycetes (Pezizales) on seeds and germinants of lodgepole pine
1986; Canadian Science Publishing; Volume: 64; Issue: 10 Linguagem: Inglês
10.1139/b86-312
ISSN1480-3305
Autores Tópico(s)Forest Insect Ecology and Management
ResumoForty isolates of postfire ascomycetes (Pezizales) were tested for in vitro pathogenicity on seeds and germinants of lodgepole pine, Pinus contorta Dougl. Two known pathogens, Caloscypha fulgens (Pers.) Boud. and Botrytis cinerea Pers., were included as a check of the method. Caloscypha fulgens was the only fungus that caused serious declines in seed germination, although several species of postfire Pezizales were capable of preemergence seed infection. Rhizina undulata Fr. and Pyropyxis rubra (Peck) Egger were strongly pathogenic on germinants. Pyropyxis rubra was not previously known to be pathogenic. Many isolates were weakly pathogenic on germinants under the conditions tested.
Referência(s)