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  • 2000-2004  (3)
  • 1985-1989
  • 2002  (3)
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  • 2000-2004  (3)
  • 1985-1989
Year
  • 1
    Electronic Resource
    Electronic Resource
    Preliminary study on the use of synthetic substrate for juvenile stage production of the yabby, Cherax destructor (Clark) (Decapoda: Parastacidae) (2002)
    Oxford, UK : Blackwell Science Ltd
    Aquaculture research 33 (2002), S. 0 
    Details
    ISSN: 1365-2109
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Juvenile Cherax destructor (commonly called the yabby) (mean weight 48.3 mg) were cultured intensively (stocking density 360/m2) under controlled conditions for 48 days. The animals were provided with a combination of food (high protein pellets and/or natural feed organisms attached to a conditioned synthetic substrate) and refuge. Fastest growth and highest yield was recorded when both pellets and the conditioned synthetic material were provided. Although the yabbies sheltered in the synthetic substrate, it did not increase survival. Juvenile yabbies (〈 200 mg) were able to graze on small organisms attached to the synthetic material but this ability appeared to decline as the yabbies grew to a larger size. The use of artificial substrates in the intensive nursery phase production of juvenile freshwater crayfish is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2109.2002.00724.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Identification and transmission of Piper yellow mottle virus and Cucumber mosaic virus infecting black pepper (Piper nigrum) in Sri Lanka (2002)
    Oxford, UK : Blackwell Science Ltd
    Plant pathology 51 (2002), S. 0 
    Details
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Sri Lankan black pepper with symptoms of yellow mottle disease contained a mixture of viruses: Piper yellow mottle virus (PYMV) particles (30 × 130 nm), Cucumber mosaic virus (CMV, 30 nm diameter isometric particles), and unidentified, isometric virus-like particles (30 nm diameter). An effective purification procedure is described for PYMV. Immunosorbent and conventional electron microscopy successfully detected badnavirus particles only when at least partially purified extracts were used. PYMV was confirmed as the cause of the disease, with the other two viruses apparently playing no part in producing symptoms. PYMV was transmitted by grafting, by the insect vectors citrus mealy bug (Planococcus citri) and black pepper lace bug (Diconocoris distanti), but not by mechanical inoculation or through seeds. The CMV isolate was transmitted to indicator plants by mechanical inoculation and by the vector Aphis gossypii, but not by Myzus persicae; but neither mechanical nor insect transmission of CMV to black pepper was successful. A sensitive polymerase chain reaction assay was developed to detect PYMV in black pepper.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.0032-0862.2002.00757.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Cellularity of human annulus tissue: an investigation into the cellularity of tissue of different pathologies (2002)
    Oxford, UK : Blackwell Science Ltd
    Histopathology 41 (2002), S. 0 
    Details
    ISSN: 1365-2559
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Aims:  To investigate the cells of the inner annulus and to demonstrate that differences in disc pathology can be identified at the cellular level.Methods and results:  Annulus tissue taken from scoliotic, degenerate and prolapsed human disc tissue was processed for histology and transmission electron microscopy. Ki67 antibody was used to identify cells in the active part of the cell cycle and cell surface receptors for the matrix-degrading enzyme urokinase were immunolocalized. More chondron clusters were observed in tissue from prolapsed discs than in degenerate and scoliotic discs. Positive Ki67 staining was detected in cells within chondron clusters. Most cells observed from scoliotic and prolapsed annulus contained distinctive nuclei and organelles, whereas cells from degenerate discs contained very few well-defined organelles but abundant glycogen deposits. Immunolocalization identified urokinase receptors on the surface of cells from degenerate discs but not in the other pathologies.Conclusions:  Cellular differences appear to underlie different types of disc pathology. The annulus tissue taken from prolapsed discs appeared to contain more chondron clusters and more active cells than scoliotic and degenerative tissue, suggesting a possible wound repair response. In contrast, cell and matrix degeneration appeared to be the most significant underlying processes in degenerate discs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2559.2002.01520.x
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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