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Titolo:
CERATO-ULMIN, A HYDROPHOBIN SECRETED BY THE CAUSAL AGENTS OF DUTCH ELM DISEASE, IS A PARASITIC FITNESS FACTOR
Autore:
TEMPLE B; HORGEN PA; BERNIER L; HINTZ WE;
Indirizzi:
UNIV TORONTO,DEPT BOT MISSISSAUGA ON L5L 1C6 CANADA UNIV LAVAL,CTR RECH BIOL FORESTIERE QUEBEC CITY PQ G1K 7P4 CANADA UNIV VICTORIA,DEPT BIOL VICTORIA BC V8W 2Y2 CANADA
Titolo Testata:
Fungal genetics and biology
fascicolo: 1, volume: 22, anno: 1997,
pagine: 39 - 53
SICI:
1087-1845(1997)22:1<39:CAHSBT>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
OPHIOSTOMA-NOVO-ULMI; SCHIZOPHYLLUM-COMMUNE; FUNGAL HYDROPHOBIN; ASPERGILLUS-FUMIGATUS; MAGNAPORTHE-GRISEA; AERIAL HYPHAE; SENSU-LATO; GENE; PATHOGENICITY; ENCODES;
Keywords:
OPHIOSTOMA; HYDROPHOBIN; CU; PATHOGENICITY; WILT TOXIN; PARASITIC FITNESS FACTOR;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
60
Recensione:
Indirizzi per estratti:
Citazione:
B. Temple et al., "CERATO-ULMIN, A HYDROPHOBIN SECRETED BY THE CAUSAL AGENTS OF DUTCH ELM DISEASE, IS A PARASITIC FITNESS FACTOR", Fungal genetics and biology, 22(1), 1997, pp. 39-53

Abstract

Dutch elm disease is caused by the aggressive Ophiostoma novo-ulmi and the nonaggressive O. ulmi, Both secrete the protein cerato-ulmin (CU), To determine what role CU plays in the pathology of Dutch elm disease, we constructed a CU overexpression mutant of the nonaggressive O. ulmi H5, Stable integration of a single copy of the cu gene from the aggressive O. novo-ulmi into the genome of the nonaggressive isolate resulted in increased secretion of CU protein, Trials with American elm,Ulmus americana, suggested no alteration of virulence of this overexpressing transformant, Using aggressive and nonaggressive wild types, the cu overexpressing mutant, and our cu(-) mutant (Bowden et al., 1996), we have demonstrated that CU production is correlated with an altered phenotype and more hydrophobic and adherent yeast-like cells, Our results also demonstrate that CU has a role in protecting infectious propagules from desiccation. These biological roles for CU would affect transmission of Dutch elm disease, and we therefore propose that this hydrophobin acts as a parasitic fitness factor. (C) 1997 Academic Press.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/11/20 alle ore 07:27:43