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单词 embryogenesis
释义

Definition of embryogenesis in English:

embryogenesis

noun ˌɛmbrɪə(ʊ)ˈdʒɛnɪsɪsˌɛmbrioʊˈdʒɛnəsəs
mass nounBiology
  • The formation and development of an embryo.

    〔生〕胚胎发生,胚胎发育

    Example sentencesExamples
    • Barley androgenesis is a suitable model system to study plant embryogenesis, as embryo development can easily be monitored in vitro.
    • Genetic analysis of lateral organ formation during embryogenesis has been restricted to a few model dicotyledons.
    • The numbers of explants showing germination of zygotic embryos, callus formation and somatic embryogenesis were recorded every 4 weeks.
    • The observed apical-basal polarity in the zygote of Arabidopsis and Fucus presages polar development during embryogenesis.
    • Asexual embryogenesis and plantlet development in anther cultures of Cucumis sativus L. have been reported.

Derivatives

  • embryogenic

  • adjective
    Biology
    • 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.
      Example sentencesExamples
      • 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.
      • Efficient tools for the regeneration of plants via somatic embryogenesis and genetic transformation of embryogenic cells using Agrobacterium are available for different varieties of grape.
      • 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.
      • Total phenolics and tannins evolved in a similar way during tissue culture, irrespective of genotype and embryogenic capacity.
  • embryogeny

  • noun ˌɛmbrɪˈɒdʒəni
    Biology
    • In animals, well-studied examples of the coenocytic state are found in oogenesis and in the early embryogeny of Drosophila.
      Example sentencesExamples
      • Expression was again up-regulated in early embryogeny and again during germination.
      • At the end of late embryogeny, somatic embryos were already differentiated, and the width of the embryo approximated its length.
      • For example, the significance of the details of embryogeny could well escape the reader more interested in the technicalities of seed production.
      • 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.

Definition of embryogenesis in US English:

embryogenesis

nounˌembrēōˈjenəsəsˌɛmbrioʊˈdʒɛnəsəs
Biology
  • The formation and development of an embryo.

    〔生〕胚胎发生,胚胎发育

    Example sentencesExamples
    • The observed apical-basal polarity in the zygote of Arabidopsis and Fucus presages polar development during embryogenesis.
    • Genetic analysis of lateral organ formation during embryogenesis has been restricted to a few model dicotyledons.
    • Asexual embryogenesis and plantlet development in anther cultures of Cucumis sativus L. have been reported.
    • The numbers of explants showing germination of zygotic embryos, callus formation and somatic embryogenesis were recorded every 4 weeks.
    • Barley androgenesis is a suitable model system to study plant embryogenesis, as embryo development can easily be monitored in vitro.
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更新时间:2024/12/26 13:37:26