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Titolo:
EVALUATION OF A FUNGAL ANTAGONIST, PHAEOTHECA-DIMORPHOSPORA, FOR BIOLOGICAL-CONTROL OF TREE DISEASES
Autore:
YANG D; PLANTE F; BERNIER L; PICHE Y; DESSUREAULT M; LAFLAMME G; OUELLETTE GB;
Indirizzi:
UNIV LAVAL,FAC FORESTERIE & GEOMAT,CTR RECH BIOL FORESTIERE ST FOY G1K 7P4 PQ CANADA FORETS CANADA,CTR FORESTERIE LAURENTIDES ST FOY G1V 4C7 PQ CANADA
Titolo Testata:
Canadian journal of botany
fascicolo: 3, volume: 71, anno: 1993,
pagine: 426 - 433
SICI:
0008-4026(1993)71:3<426:EOAFAP>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
SPECIES-GROUPS; TRICHODERMA;
Keywords:
PHAEOTHECA-DIMORPHOSPORA; BIOLOGICAL CONTROL; FUNGAL ANTAGONIST; HYPHAL INTERACTIONS; ANTIFUNGAL METABOLITES; TREE DISEASES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
14
Recensione:
Indirizzi per estratti:
Citazione:
D. Yang et al., "EVALUATION OF A FUNGAL ANTAGONIST, PHAEOTHECA-DIMORPHOSPORA, FOR BIOLOGICAL-CONTROL OF TREE DISEASES", Canadian journal of botany, 71(3), 1993, pp. 426-433

Abstract

Phaeotheca dimorphospora, which was first isolated from elm wood and found to be antagonistic in vitro against the Dutch elm disease pathogen Ophiostoma ulmi, was tested for antifungal activity in vitro against other tree pathogens by a variation of the agar layer technique. Phaeotheca dimorphospora produced antifungal compounds that were stronglyinhibitory against a wide range of tree pathogens in addition to O. ulmi, such as Gremmeniella spp., Armillaria spp., Septoria musiva, Verticillium albo-atrum, Cylindrocladium floridanum, Phytophthora sp., Nectria galligena, and Heterobasidion annosum. Under light and interference microscopy, four types of morphological changes were observed in the pathogens tested: swelling of hyphae, production of resting spores such as chlamydospores and of sclerotia, extrusion of cytoplasm from hyphal tips, and bursting and destruction of mycelium. Chloroform-soluble antagonistic compounds were extracted that showed both fungicidal and fungistatic effects on the test organisms.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/11/20 alle ore 14:09:46