Accumulation dynamics and some cytogenetical tests at Chelidonium majus and Papaver somniferum callus under the magnetic liquid effect

In this paper we studied the capacity of magnetic liquids which are biocomp atible las previous literature reports showed) to influence germination, de -differentiation and re-differentiation processes in vitro, as well as to i nfluence both the mitotic index and the chromosomal aberration frequency. I n vitro cultures of two species of pharmaceutical interest, Chelidonium maj us L. and Papaver somniferum L., on media supplemented with various concent rations of magnetic liquid, for various explant types, revealed a small but significant effect of the petroleum magnetic liquid on the callus accumula tion and induced a considerable rate of chromosomal aberrations. (C) 1999 E lsevier Science B.V. All rights reserved.