Characterisation of three isometric viruses infecting daphne : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Microbiology at Massey University

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dc.contributor.authorMorris-Krsinich, Bret Alton Max
dc.date.accessioned2017-11-06T21:53:22Z
dc.date.available2017-11-06T21:53:22Z
dc.date.issued1976
dc.description.abstractThe poor vigour of many cultivars belonging to the genus Daphne (Thymelaeaceae) has been attributed to viral infection (Chamberlain, 1954) and several viruses including alfalfa mosaic virus and cucumber mosaic virus have been isolated (Chamberlain, 1954; Milbrath & Young, 1956; and Schmelzer, 1968). Concern about daphne 'virus' problems expressed by nurserymen, has led to several programmes aimed at improving stock plants. Recent survey work on daphne viruses (Forster & Milne, 1975; Sutton & Taylor, 1974; and Sweet & Campbell, 1973) has therefore been prompted by this requirement for high health and virus-free plants. In a survey of viruses infecting Daphne species and cultivars in New Zealand, Forster and Milne, (1975) isolated four previously described viruses (alfalfa mosaic virus, arabis mosaic virus, cucumber mosaic virus and tobacco ringspot virus) plus seven partially characterised viruses (daphne isometric viruses 1,2 & 3, daphne-tobacco mosaic virus, daphne virus S, daphne virus X and daphne virus Y). The latter three anisometric viruses (DVS, DVX, DVY) have been further charactersed (R.L. Forster & K.S. Milne, pers. comm., 1975), while the remaining isometric viruses (DIV-1, DIV-2,& DIV-3) are the subject of this study. Severel isolates of each of the three isometric viruses were obtained from their respective hosts and extensively characterised. DIV-1, DIV-2 and DIV-3 could be readily differentiated from each other by host range and symptomatology in differential hosts and more detailed study led to their separate identification.[from Preface]en_US
dc.identifier.urihttp://hdl.handle.net/10179/12276
dc.language.isoenen_US
dc.publisherMassey Universityen_US
dc.rightsThe Authoren_US
dc.subjectVirus diseases of plantsen_US
dc.subjectDaphneen_US
dc.titleCharacterisation of three isometric viruses infecting daphne : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Microbiology at Massey Universityen_US
dc.typeThesisen_US
massey.contributor.authorMorris-Krsinich, Bret Alton Max
thesis.degree.disciplineMicrobiologyen_US
thesis.degree.grantorMassey Universityen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Science (M. Sc.)en_US
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