Abstract

To study the influence of culture conditions on higher plant cells in suspension culture, the effects of antibiotics and physical factors, i.e. pH, temperature, shaking conditions and light, on the growth of suspended cells were investigated using three different callus cells; Populus hybrids (P. maximowiczii × P. nigra), N. glutinosa and N. tabacum var. xanthi ova. Of the conditions tested, red light as the light source, 32°C as the temperature, 7.5 as the initial pH value of the medium and 90 reci/min as the reciprocations of the shaker were the most favourable conditions for cell growth. In addition, the influence of various antibiotics was investigated. Of the antibiotics tested, penicillin, oleandomycin, cephaloridin and oxytetracycline did not inhibit cell growth and blasticidin-S was most toxic to all cultures.

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