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  • 1
    Electronic Resource
    Electronic Resource
    Sunflower necrosis disease from India is caused by an ilarvirus related to Tobacco streak virus (2001)
    Oxford, UK : Blackwell Science Ltd
    Plant pathology 50 (2001), S. 0 
    Details
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-3059.2001.00623.x
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  • 2
    Electronic Resource
    Electronic Resource
    Isolation and identification of a novel tymovirus from Nemesia in the UK (2004)
    Oxford, UK : Blackwell Science Ltd
    Plant pathology 53 (2004), S. 0 
    Details
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3059.2004.01091.x
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  • 3
    Electronic Resource
    Electronic Resource
    Occurrence of potyvirus and potexvirus infections in black bryony (Tamus communis) in Devon, UK (1987)
    Oxford, UK : Blackwell Publishing Ltd
    Plant pathology 36 (1987), S. 0 
    Details
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Leaf samples of black bryony (Tamus communis L.) from Devon, UK, showing various virus-like symptoms contained potyvirus-like particles (normal length c. 790 nm) and cytoplasmic cylindrical (pinwheel) inclusions. In immunoelectron microscopy, particles of most samples reacted with antiserum to dioscorea greenbanding mosaic virus, a potyvirus isolate from Dioscorea rotundata in Togo which is related to yam mosaic virus from the Ivory Coast. Potyvirus particles were not transmitted by sap or aphids (Myzuspersicae) from infected black bryony to black bryony seedlings or Nicotiana benthamiana. One sample from a symptomless plant of black bryony contained a potexvirus which formed massed virion aggregates in the cytoplasm of cells of black bryony, Nicotiana benthamiana and N. megalosiphon. Virions of the potexvirus (normal length 553 nm) contained a coat protein with an apparent molecular weight of 27.7 kd. The potexvirus differed from an Italian potexvirus isolate from black bryony by a serological differentiation index of 4 and gave only weak or no reactions with 23 other antisera to potexviruses, including dioscorea latent virus. The potexvirus caused systemic symptoms in only a few host plants and could be transmitted back to black bryony in which it caused no symptoms. It is provisionally named tamus latent virus.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3059.1987.tb02266.x
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  • 4
    Electronic Resource
    Electronic Resource
    An onion isolate of tobacco rattle virus: reactivity with anantiserum to Hypochoeris mosaic virus, a putative furovirus, and molecular analysis of its RNA 2 (1998)
    Springer
    Archives of virology 143 (1998), S. 1041-1053 
    Details
    ISSN: 1432-8798
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary.  A tubular virus from onion was found to react with an antiserum to Hypochoeris mosaic virus (HyMV), a putative furovirus. Sequence analysis of its genomic RNAs and further serological tests, however, indicated it to be a tobravirus rather than a furovirus. The reactivity of the HyMV antiserum with several isolates of tobacco rattle virus (TRV) suggests that HyMV itself may be a tobravirus. The deduced amino acid sequences of the putative proteins encoded on RNA 2 of the onion virus isolate (ON) suggest close evolutionary relationships to the TRV isolate TCM from tulip. However, RNA 2 of the ON isolate contains a shorter RNA 1-like sequence on its 3′-end and an additional small ORF upstream of its RNA 1-like part. The sequence of its 315 5′-terminal nucleotides is more similar to that of RNA 2 of the PLB isolate from potato than to that of TCM RNA 2
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s007050050354
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  • 5
    Electronic Resource
    Electronic Resource
    Die Ultrastruktur des Penetrationsvorganges von Olpidium brassicae an Kohlrabi-Wurzeln (1970)
    Springer
    Archives of microbiology 71 (1970), S. 20-30 
    Details
    ISSN: 1432-072X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Zusammenfassung Olpidium brassicae durchdringt mit einem schlauchförmingen, umwandeten Penetrationsfortsatz die Wirtszellwand und durchwächst damit auch das Lumen toter Wirtszellen. Beim Eindringen in das Wirtscytoplasma treten zwei verschiedene Typen von Wirt-Parasit-Reaktionen auf: in plasmareichen Zellen bildet der Wirt eine Callosity in einer unregelmäßigen Einstülpung des Plasmalemmas in das Cytoplasma, in plasmaarmen Calyptrazellen entsteht dagegen ein Rohr aus unbekanntem stark osmophilen Material. Der Pilzprotoplast durchbricht auf unbekannte Weise das Wirtsplasmalemma und tritt in beiden Fällen als von einer einfachen Plasmamembran umgebenes Plasmodium ins Cytoplasma des Wirtes ein.
    Notes: Summary Olpidium brassicae penetrates the host cell wall with a wall-coated penetration tube, which too is able to grow through the lumen of dead host cells. Two host-parasite reactions are observed: plasmarich host cells are forming a callosity at the point of penetration, calyptra cells containing only little cytoplasm are forming a strongly osmiophilous tube. The host plasmalemma is penetrated by the fungus protoplast, which in each case finally is located in the host cytoplasm as a plasmodium coated by a single membrane only.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00412231
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  • 6
    Electronic Resource
    Electronic Resource
    Elektronenmikroskopische Untersuchung über die Vorbereitung der Infektion in encystierten Zoosporen von Olpidium brassicae (1970)
    Springer
    Archives of microbiology 71 (1970), S. 9-19 
    Details
    ISSN: 1432-072X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Zusammenfassung Anhand der Ultrastrukturen wird die präinfektionelle Phase an die Wirtszelle angehefteter Olpidium-Zoosporen beschrieben. Vor der Encystierung wird die Geißel eingezogen; sie liegt dann in zwei Windungen in der Zoospore. Beim Abbau des Geißelapparates schiebt sich als erstes das Dictyosom der Zelle zwischen den Rhizoplasten und das Kinetosom sowie das Centriol. Nach Auflösung des Rhizoplasten trennt sich das Axonema vom Kinetosom und desintegriert. Die Centriolen lagern sich schließlich zwischen Kern und Dictyosom. Vom Dictyosom produzierte Sekretvesikeln sammeln sich an der Anheftungsstelle in der Cyste; dort organisieren sich oft auch Lomasomen-ähnliche Strukturen. Im distalen Teil der Zelle entsteht aus Elementen des ER über ein multivesiculäres Stadium die Vacuole.
    Notes: Summary The ultrastructure of the preinfectional phase of zoospores of Olpidium brassicae attached to host cells is described. Prior to encystment the flagellum is retracted in the zoospore, where it forms two windings. At the beginning of flagellum desintegration the dictyosome is going to separate the rhizoplast from the kinetosome and the centriole. After desintegration of the rhizoplast the axonema is separated from the kinetosome and desintegrates too. The resulting two centrioles are finally located between the nucleus and the dictyosome. Vesicles produced by the dictyosome are aggregating at the region of attachment of the cyste; there often are found lomasome-like structures. The vacuole is formed in the distal region of the cyst from an multivesicular structure originating from cisternae of the ER.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00412230
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  • 7
    Electronic Resource
    Electronic Resource
    First report of Colombian datura potyvirus in tomato (1996)
    Springer
    European journal of plant pathology 102 (1996), S. 895-898 
    Details
    ISSN: 1573-8469
    Keywords: Brugmansia ; Lycopersicum esculentum ; epidemiology ; the Netherlands
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Colombian datura potyvirus (CDV) was detected in about 300 plants of tomato ‘Cabrion’ in one greenhouse in the Netherlands. Virus identification was based on host range and symptomatology, aphid transmission, electron microscopy and serology. Evidence was obtained that the tomato plants were infected by viruliferousMyzus persicae that acquired the virus from a CDV-infectedBrugmansia plant present in the same greenhouse.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01877061
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  • 8
    Electronic Resource
    Electronic Resource
    Ultrastructural localization of nonstructural and coat proteins of 19 potyviruses using antisera to bacterially expressed proteins of plum pox potyvirus (1998)
    Springer
    Archives of virology 143 (1998), S. 2133-2158 
    Details
    ISSN: 1432-8798
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary.  Antisera to the bacterially expressed nonstructural proteins (NSP) HC-Pro, CI, NIa, and NIb and the coat protein (CP) of plum pox potyvirus (PPV) were used for analysing the composition of virus-induced cytoplasmic and nuclear inclusions by electron microscopy. The antisera reacted with NSP and CP of PPV on immunogold-labelled ultrathin sections. Antiserum to CP reacted with virions of seven out of 18 other potyviruses. CP was distributed throughout the cytoplasm of infected cells. Antisera to PPV NSP specifically reacted with virus-specific cytoplasmic and/or nuclear inclusions induced by 17 different potyviruses. NSP were furthermore localized in confined cytoplasmic areas in between complex accumulations of virus-specific inclusions. Cylindrical inclusions induced by the potyviruses were proven to consist of CI protein. Most other cytoplasmic or nuclear inclusions were shown to be composed of two or more NSP. An unexpected composition of virus-induced inclusions was observed for the crystalline nuclear inclusions of tobacco etch virus. Here, in addition to the expected presence of NIa and NIb, HC-Pro could be demonstrated. Furthermore, amorphous cytoplasmic inclusions induced by papaya ringspot virus contained the expected HC-Pro but additionally NIa, NIb and CI. Beet mosaic virus-induced nuclear inclusions (‘satellite bodies’) contained in their electron-dense matrix NIa, NIb, Hc-Pro and CI and in their lacunae CP in bundles of virion-like filaments. The results indicate that all cytoplasmic or nuclear inclusions of potyviruses have to be regarded as deposition sites of excessively produced viral NSP.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s007050050448
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  • 9
    Electronic Resource
    Electronic Resource
    Tissue print-immunoblotting reveals an uneven distribution of beet necrotic yellow vein and beet soil-borne viruses in sugarbeets (1992)
    Springer
    Archives of virology 126 (1992), S. 329-335 
    Details
    ISSN: 1432-8798
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary An uneven distribution of the coat protein antigens of beet necrotic yellow vein (BNYVV) and beet soil-borne (BSBV) viruses in tap roots of naturally infected sugarbeets and of BNYVV coat protein antigen in leaves and petioles of mechanically inoculated sugarbeet seedlings was detected by means of tissue print-immunoblotting. BNYVV antigen-containing areas in the tap roots were usually found underneath a root beard. Occasionally BNYVV antigen was detected predominantly, but not exclusively in the xylem vessels.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01309706
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  • 10
    Electronic Resource
    Electronic Resource
    Ultrastructural studies on a chlorella virus from Germany (1993)
    Springer
    Archives of virology 130 (1993), S. 145-155 
    Details
    ISSN: 1432-8798
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary This is the first report on the morphology and fine structure of chlorella virus Göttingen-1 (CVG-1), an European member of the newly approved familyPhycodnaviridae, which infects certain unicellular, eukaryotic, exsymbiotic, green algae. CVG-1 are polyhedral particles 145–160 nm in diameter. The capsid consists of two shells, apparently composed of ca. 7 nm subunits. Whereas the outer shell of the capsid appears to be icosahedral, the inner shell appears to be irregular underneath one vertex of the virion. In this vertex the inner shell is separated from the outer shell leaving a distinct space (“empty vertex”) of unknown function.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01319003
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