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Inheritance of chromosome-length polymorphisms in Ophiostoma ulmi (sensu lato)
Current Genetics, 1995We have investigated the mitotic and meiotic transmission of chromosome-length polymorphisms in Ophiostoma ulmi s.l., the causal agent of Dutch elm disease. The North-American aggressive (NAN) strain CESS16K has an atypical electrophoretic karyotype, carrying two chromosome-sized DNAs (chDNAs) that have not been observed in other members of the NAN ...
K, Dewar, L, Bernier
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Characterization of iprodione tolerance in Ophiostoma ulmi
Transactions of the British Mycological Society, 1987Iprodione tolerance in Ophiostoma ulmi appears to be conferred by allelic or closely linked single-locus mutations. The characteristics of three stable iprodione-tolerant phenotypes are described.
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Effect of temperature on growth and cerato-ulmin production of Ophiostoma novo-ulmi and O. ulmi
Mycological Research, 1994Ophiostoma novo-ulmi and O. ulmi , previously named ‘aggressive’ and ‘non-aggressive’ subgroups of the old species O. ulmi , are distinguished by a wide range of morphological, molecular, genetical and physiological characters, observed both in vivo and in vitro .
Stefania Tegli +3 more
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Molecular identification and virulence assessment of Ophiostoma novo-ulmi isolates
2020Ophiostoma novo-ulmi is a phytopathogenic fungus that is causing Dutch elm disease (DED), a devastating vascular wilt disease of elms. This aggressive pathogen has been spreading in a form of two subspecies: O. novo-ulmi ssp. novo-ulmi and O. novo-ulmi ssp. americana.
Katanić, Zorana +4 more
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The D2-Factor in Ophiostoma Ulmi: Expression and Latency
1986D-factors are genetic elements that have the potential to exert a deleterious effect on the growth and reproductive fitness of Ophiostoma ulmi, the causative agent of Dutch elm disease [1,2]. They show cytoplasmic inheritance and are readily transmitted by hyphal anastomosis to other isolates in the same vegetative-compatibility (v-c) group; less ...
H. J. Rogers, K. W. Buck, C. M. Brasier
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A study of the development of Ophiostoma ulmi in elms with immunological techniques
Netherlands Journal of Plant Pathology, 1978The indirect immunofluorescence technique (IIF) and the indirect immunoperoxidase technique (IIP) were used to detect specificallyOphiostoma ulmi in inoculated elm branches. A strong cross-reaction was observed between the hyperimmune serum to the non-aggressive strain E2 ofO. ulmi and the aggressive strain H6.
D. M. Elgersma, P. A. Steerenberg
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Electrophoretic karyotypes of the elm tree pathogen Ophiostoma ulmi (sensu lato)
Molecular and General Genetics MGG, 1993Pulsed field gel electrophoresis using OFAGE, TAFE, and CHEF systems has been used to more fully characterize karyotypic variation within the two closely related fungal species of Ophiostoma ulmi sensu lato. Twelve wild-type and laboratory strains, representing the less aggressive species O.
K, Dewar, L, Bernier
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Designation of the EAN and NAN races of Ophiostoma novo-ulmi as subspecies
Mycological Research, 2001The two subpopulations of the Dutch elm disease pathogen Ophiostoma novo-ulmi, previously known as the Eurasian (EAN) and North American (NAN) races, are redesignated as subspecies novo-ulmi and americana. In addition to their partial reproductive isolation, wide range of physiological and molecular differences and different geographic ranges, the two ...
Clive M. Brasier, Susan A. Kirk
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Development of ELISA for Ophiostoma ulmi using antigen‐coated wells
Plant Pathology, 1988A simple sensitive ELISA test has been developed that detects either antibodies to, or antigens of, the Dutch elm pathogen, Opiostoma ( Ceratocystis ) ulmi.
F. M. DEWEY, C. M. BRASIER
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Canadian Journal of Botany, 1994
Two-dimensional mycelial polypeptide maps were used to compare interspecific and intraspecific relationships among six isolates of Ophiostoma ulmi and four Eurasian and four North American race isolates of Ophiostoma novo-ulmi. The basic polypeptide pattern of O. ulmi differs markedly from that of O. novo-ulmi. A number of polypeptides were identified
Robert S. Jeng, Clive M. Brasier
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Two-dimensional mycelial polypeptide maps were used to compare interspecific and intraspecific relationships among six isolates of Ophiostoma ulmi and four Eurasian and four North American race isolates of Ophiostoma novo-ulmi. The basic polypeptide pattern of O. ulmi differs markedly from that of O. novo-ulmi. A number of polypeptides were identified
Robert S. Jeng, Clive M. Brasier
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