The botanical magazine = Shokubutsu-gaku-zasshi

, Volume 105, Issue 4, pp 649–658 | Cite as

Successive observations on the fertilization of a centric diatomMelosira moniliformis var.octagona

  • Masahiko Idei
  • Mitsuo Chihara


The details of fertilization in the centric diatom,Melosira moniliformis var.octagona, were examined by light microscopy with a video system. The sperm penetrated into the egg cell through a temporary opening of the oogonium. The flagellum of the sperm was brought into the egg cell and it remained active for a few minutes. Three observations on the behavior of the sperm and egg cell during fertilization are shown.

Key words

Centric diatom Fertilization Melosira Sexual reproduction Sperm 


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Copyright information

© The Botanical Society of Japan 1992

Authors and Affiliations

  • Masahiko Idei
    • 1
  • Mitsuo Chihara
    • 2
  1. 1.Bunkyo University Women's CollegeKanagawaJapan
  2. 2.The Japanese Red Cross College of NursingTokyoJapan

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