title: Investigations on ploidy levels of haploid and diploid callus and cell suspension cultures of Datura innoxia Mill.
abstract: Using haploid and diploid Datura innoxia Mill, callus cultures and cell suspensions it was shown that meristematic material usually attains the lowest possible C-value of a given ploidy level. Parenchyma material of callus cultures, however, indicates a broad scattering of C-values up to 16 C, which is paralleled by C-value distribution of the free cell fraction in actively dividing cell suspensions. In these suspensions, cell division activity seems to be restricted to small meristem-like clusters.
mesh_terms: D002453:Cell Cycle / Q000187:drug effects; D013286:Datura stramonium / Q000166:cytology / Q000187:drug effects / Q000235:genetics; D004171:Diploidy; D006238:Haploidy; D007701:Kinetin / Q000494:pharmacology; D059828:Plant Cells; D010944:Plants / Q000187:drug effects / Q000235:genetics; D010946:Plants, Medicinal; D010947:Plants, Toxic
chemical_list: D007701:Kinetin