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Wyszukujesz frazę "molecular form" wg kryterium: Temat

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    Wyświetlanie 1-2 z 2
    Tytuł:
    Molecular forms of selected antioxidant enzymes in dog semen – electrophoretical identification
    Autorzy:
    Koziorowska-Gilun, M.
    Strzezek, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/32130.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    molecular form
    antioxidative enzyme
    dog
    semen
    electrophoresis
    identification
    spermatozoon
    enzyme
    superoxide dismutase
    catalase
    glutathione peroxidase
    reactive oxygen species
    Opis:
    The aim of the study was the electrophoretical identification of molecular forms of selected antioxidant enzymes in dog semen. Ejaculates to be studied were chosen from five dogs, aged from two to eight years. Polyacrylamide gel electrophoresis was carried out under non-denaturing conditions and then gels were stained for the activity of the following enzymes: superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPx). Sperm homogenates and all fractions (pre-spermatic, spermatic and post-spermatic) of dog ejaculate demonstrated one protein band with SOD activity characterized by low electrophoretic mobility. Based on the confirmed sensitivity to H₂O₂, it can be assumed that the detected SOD is an enzyme containing ions of Zn²⁺ and Cu²⁺ (Cu,Zn SOD). In sperm homogenates one protein band with GPx activity was characterized by high electrophoretic mobility, whereas in the spermatic and post-spermatic fractions of dog ejaculate three protein bands with different (low, medium and high) electrophoretic mobility were identified. CAT molecular forms were not found in either sperm homogenates or in the analyzed fractions of ejaculate.
    Źródło:
    Polish Journal of Veterinary Sciences; 2011, 14, 1
    1505-1773
    Pojawia się w:
    Polish Journal of Veterinary Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Differential responses of aquatic and aerobic forms of Echinochloa crus-galli (L.) Beauv. and E. colona (L.) Link. by morpho-physiological and molecular analysis
    Autorzy:
    Khedr, A.-H.A.
    Serag, M.M.
    Shaaban, H.E.
    Abogadallah, G.M.
    Powiązania:
    https://bibliotekanauki.pl/articles/9989.pdf
    Data publikacji:
    2017
    Wydawca:
    Fundacja na Rzecz Młodych Naukowców
    Tematy:
    alcohol dehydrogenase
    ADH zob.alcohol dehydrogenase
    aquatic form
    aerobic form
    Echinochloa crus-galli
    Echinochloa colona
    habitat alteration
    morphophysiological analysis
    molecular analysis
    phosphoenolopyruvate carboxylase
    Rubisco
    Opis:
    Echinochloa crus-galli and E. colona are serious weeds around the world. Morphological and biochemical features of aquatic and aerobic forms of both species were investigated experimentally by transplanting the seedlings reciprocally between water-saturated and aerobic soils (70% field capacity). When the plants were grown in water-saturated soil, a significant decrease in tiller height was observed in E. crus-galli, but not in E. colona. Upon growing the plants in aerobic soil, internode length and spike dry weight increased significantly in E. crus-galli, but decreased significantly in E. colona. Growth under aerobic condition caused a significant increase in PEPC/Rubisco ratio, but a significant decrease was observed under water-saturated conditions. When E. crus-galli was transplanted in aerobic soil, several forms of peroxidase were upregulated. Contrarily, in E. colona peroxidase isoforms did not respond to habitat change. Gene expression of ADH in E. colona was constitutive at a fairly high level under native habitats then enhanced with reversing habitat that caused anoxic and mild drought conditions. Both species tend to grow faster under aerobic conditions by modifying the photosynthetic machinery and capacity of scavenging of reactive oxygen species. Furthermore, ADH appears to play a role in supporting growth under water-saturated conditions.
    Źródło:
    Environment, Earth and Ecology; 2017, 1, 1
    2543-9774
    2451-4225
    Pojawia się w:
    Environment, Earth and Ecology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-2 z 2

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