caa a22 4500 469028688 CHVBK 20180323132737.0 cr unu---uuuuu 170328e19920301xx s 000 0 eng 10.1007/BF00235261 doi (NATIONALLICENCE)springer-10.1007/BF00235261 The effects of antibiotics and their breakdown products on the in vitro growth of Antirrhinum majus [Elektronische Daten] [P. Holford, H. Newbury] Summary: The effects of various antibiotics on the development of hypocotyls of Antirrhinum majus in tissue culture have been studied. The penicillins, carbenicillin and penicillin G, have been shown to stimulate callus growth, have little impact on shoot production and may stimulate root formation. The cephalosporins, cephotaxime and cephalosporin, have no effect on callus production and reduce shoot and root formation. HPLC, GC and GC-MS analyses have shown that concentrations of carbenicillin and penicillin G, commonly used in plant tissue culture, break down to give physiologically active levels of the auxin phenylacetic acid. This offers a mechanism for the stimulation of growth caused by these two antibiotics. Springer-Verlag, 1992 Holford P. School of Biological Sciences, University of Birmingham, P.O. Box 363, B15 2TT, Edgbaston, Birmingham, UK aut Newbury H. School of Biological Sciences, University of Birmingham, P.O. Box 363, B15 2TT, Edgbaston, Birmingham, UK aut Plant Cell Reports Springer-Verlag 11/2(1992-03-01), 93-96 0721-7714 11:2<93 1992 11 299 https://doi.org/10.1007/BF00235261 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00235261 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Holford P. School of Biological Sciences, University of Birmingham, P.O. Box 363, B15 2TT, Edgbaston, Birmingham, UK aut NATIONALLICENCE 700 1- Newbury H. School of Biological Sciences, University of Birmingham, P.O. Box 363, B15 2TT, Edgbaston, Birmingham, UK aut NATIONALLICENCE 773 0- Plant Cell Reports Springer-Verlag 11/2(1992-03-01), 93-96 0721-7714 11:2<93 1992 11 299 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer