ILIEV Ivan

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Bacteriological, viral and serological investigators were carried out in a community with 100 prescholar children (Kindergarden), 34 of whom presented a clinical syndrome of whooping cough, in order to establish the bacteriologic or viral etiology of the syndrome. The etiologic role of organisms of the Bordetella, B. pertussis and B. parapertussis was(More)
Epicotyls, having at least one internode and with their bottom leaves removed and hypocotyls with cotyledons, isolated from in vitro 30-day-old seedlings were used as explants. For induction of axillary shoot formation, the explants were cultivated on WPM and MS media supplemented with 0.5 or 1.0 mg l TDZ plus 0.1 mg l IBA. The highest multiplication rate(More)