摘要 : This report deals with responses obtained from different explants of Cycas, Zamia, and Ephedra foliata cultured on Murashige & Skoog medium with various plant growth regulators. 2,4-D and NAA were tested at various concentrations ... 展开 This report deals with responses obtained from different explants of Cycas, Zamia, and Ephedra foliata cultured on Murashige & Skoog medium with various plant growth regulators. 2,4-D and NAA were tested at various concentrations OF 0.1-10 and 0.5-2.0μM alone or in combination with BAP [benzyladenine] (1-5μM) or kinetin (1-5μM). The effects on callusing, somatic embryogenesis, shoot bud formation, and other responses, such as leaf-like and nodular structures, were observed in leaf explants of C.revoluta, C. rumphii, and Z. furfuracea, the female gametophyte of C. circinalis and Z. integrifolia, and embryos of C. circinalis. 收起