...In late spring, dark brown wart-like protrusions form all over the surface of the body. These are sexual reproductive organs, and when the male and female gametes swim out of these protrusions, they germinate and become disc-like embryos that attach to rocks. According to a European study of the closely related species C. multifida (Smith) Greville, these discs develop into the same organism as another seaweed called Aglaozonia . In other words, there is an alternation of generations between C. multifida and Aglaozonia. ... *Some of the terminology explanations that mention "Aglaozonia" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…晩春のころに体の表面に暗褐色のいぼ状突起が一面に形成されるが,これは有性生殖器官で,これから泳ぎ出た雌雄の配偶子は接合すると発芽して岩にへばりつく盤状発生体となる。近縁種のヒラムチモC.multifida (Smith) Grevilleについてヨーロッパで行われた研究によると,この盤状体はアグラオゾニアAglaozoniaの名で呼ばれていた別の海藻と同一物に発達するという。すなわち,ヒラムチモとアグラオゾニアの間で世代交代が行われていることになる。… ※「アグラオゾニア」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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