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The effects of heavy metal ions (Co(2+), Ag(+), Cd(2+)) on cell viability and secondary metabolite production, particularly anthocyanins and phenolic acids in Vitis vinifera cell suspension cultures, were investigated. Of these, Co at all three used concentrations (5.0, 25, and 50 μM), Ag, and Cd at low concentration (5.0 μM) were most effective to(More)
EBV is a human herpes virus that causes mononucleosis and is associated with various tumors. EBV infects cells via the CR2 that was previously thought to be expressed only on the surface of B cells and certain epithelial cells. Recent findings in our laboratory and those of others, however, have shown that the EBV receptor is also present on T cells. Our(More)
Epstein-Barr virus (EBV), the causative agent of mononucleosis and several human cancers, infects cells via complement receptor type 2 (CR2, CD21) which also serves as the receptor for the third complement component, C3. Expression of this receptor is restricted to B lymphocytes, immature thymocytes, and certain epithelial cells. In the present(More)
  • C Speiser
  • 1974
In a preliminary report a new functional chromosome model is developed. Contrary to all present hypotheses this model considers not only the chromomeres but also the interchromomeres as independent genes. It is assumed that the interchromomeres are obligatory miniature-puffs, which are formed by the genes of "basic synthesis" (the synthesis which guarantees(More)
Persistent infection by Sindbis virus (SV) can be induced in cultures of BHK-21 cells. In a persistently infected cell line only 5% of the cells produced virus. Virus titers in the medium reached 10(5) PFU per ml. A persistent infection could be eliminated from cultures by seeding at most 100 cells per bottle. Compared with the original line decontaminated(More)
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