单词	embryogenesis
释义	embryogenesis /ˌɛmbrɪə(ʊ)ˈdʒɛnɪsɪs / noun [mass noun] Biology The formation and development of an embryo.The numbers of explants showing germination of zygotic embryos, callus formation and somatic embryogenesis were recorded every 4 weeks.... Asexual embryogenesis and plantlet development in anther cultures of Cucumis sativus L. have been reported. Barley androgenesis is a suitable model system to study plant embryogenesis, as embryo development can easily be monitored in vitro. Derivatives embryogenic adjective ... The large body of previous tissue culture experiments emphasized the pivotal role of auxin-activated cell division in induction of an embryogenic state in cultured somatic cells. Furthermore, both embryogenic cell lines growing on maturation medium with either added ACC or ethylene exhibited a brown colour in contrast to those growing on the control medium. This hypothesis is further supported by the fact that proteolytic genes are activated prior to cell division-related genes during acquisition of embryogenic potential in somatic embryogenesis. embryogeny /ˌɛmbrɪˈɒdʒəni/ noun ... At the end of late embryogeny, somatic embryos were already differentiated, and the width of the embryo approximated its length. In animals, well-studied examples of the coenocytic state are found in oogenesis and in the early embryogeny of Drosophila. In all the Archegoniate (including the majority of gymnosperms) fertilization and the first critical phases of embryogeny occur within the shelter provided by the archegonium and the adjacent gametophytic tissue.
随便看	inappositeness inappreciable inappreciably inappreciation inappreciative inappropriate inappropriately inappropriateness inapt inaptitude inaptly self-excited self-executing self-existent self-explanatory self-expression self-expressive self-faced self-feeder self-feeding self-fertile self-fertilisation self-fertility self-fertilization self-fertilized

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