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  • Arthropod vectoring  (1)
  • Rainbow trout, Oncorhynchus mykiss  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Role of glucose and insulin in regulating glycogen synthase and phosphorylase activities in rainbow trout hepatocytes (1995)
    Springer
    Journal of comparative physiology 165 (1995), S. 62-70 
    Details
    ISSN: 1432-136X
    Keywords: Glycogen ; Hepatocyte ; Insulin ; 13C NMR ; Rainbow trout, Oncorhynchus mykiss
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract This study, using 13C nuclear magnetic resonance spectroscopy showed enrichment of glycogen carbon (C1) from 13C-labelled (C1) glucose indicating a direct pathway for glycogen synthesis from glucose in rainbow trout (Oncorhynchus mykiss) hepatocytes. There was a direct relationship between hepatocyte glycogen content and total glycogen synthase, total glycogen phosphorylase and glycogen phosphorylase a activities, whereas the relationship was inverse between glycogen content and % glycogen synthase a and glycogen synthase a/glycogen phosphorylase a ratio. Incubation of hepatocytes with glucose (3 or 10 mmol·1-1) did not modify either glycogen synthase or glycogen phosphorylase activities. Insulin (porcine, 10-8 mol·1-1) in the medium significantly decreased total glycogen phosphorylase and glycogen phosphorylase a activities, but had no significant effect on glycogen synthase activities when compared to the controls (absence of insulin). In the presence of 10 mmol·1-1 glucose, insulin increased % glycogen synthase a and decreased % glycogen phosphorylase a activities in trout hepatocytes. Also, the effect of insulin on the activities of % glycogen synthase a and glycogen synthase a/glycogen phosphorylase a ratio were more pronounced at low than at high hepatocyte glycogen content. The results indicate that in trout hepatocytes both the glycogen synthetic and breakdown pathways are active concurrently in vitro and any subtle alterations in the phosphorylase to synthase ratio may determine the hepatic glycogen content. Insulin plays an important role in the regulation of glycogen metabolism in rainbow trout hepatocytes. The effect of insulin on hepatocyte glycogen content may be under the control of several factors, including plasma glucose concentration and hepatocyte glycogen content.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00264687
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    Paper (German National Licenses)
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    Five new Penicillium species in section Sclerotiora: a tribute to the Dutch Royal family (2013)
    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 31 no. 1, pp. 42-62
    Details
    Publication Date: 2024-01-12
    Description: Current literature accepts 17 species in Penicillium section Sclerotiora. Several produce colonies in bright yellow to orange colours and have monoverticillate conidiophores, apart from P. herquei, P. malachiteum and P. nodositatum, which are biverticillate. The focus of this paper is to refine the concepts of the species currently accepted in the section and introduce five new species, named after the Dutch Royal family as P. vanoranjei, P. maximae, P. amaliae, P. alexiae and P. arianeae. Penicillium vanoranjei produces orange (Dutch = oranje) colonies in culture, and is named after Willem-Alexander Claus George Ferdinand, \xe2\x80\x98Zijne Koninklijke Hoogheid de Prins van Oranje\xe2\x80\x99 (translated from Dutch as: \xe2\x80\x98His Royal Highness the Prince of Orange\xe2\x80\x99) and his family, to coincide with his coronation.\nWe review the current taxonomic positions of P. lilacinoechinulatum and P. nodositatum, both currently considered to be synonyms of P. bilaiae. Sequence data generated in this study show that both species are phylogenetically distinct. Penicillium lilacinoechinulatum is closely related to P. amaliae sp. nov., whereas P. nodositatum does not belong to Penicillium sensu stricto. All species were compared morphologically and phylogenetically, based on \xce\xb2-tubulin and calmodulin DNA data. A table summarising the morphological characters of all species is included, together with photomicrographs and recommended DNA markers for identification.
    Keywords: Arthropod vectoring ; beta-tubulin ; internal transcribed spacer region (ITS)
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
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