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Algae > Volume 1(1); 1986 > Article
Algae 1986;1(1): 87-94.
Morphology and Reproduction of Anotrichium yagii (Okam.) Baldock (Ceramiaceae, Rhodophyta)
Hyung-Seop Kim, In-Kyu Lee
Department of Botany, Seoul National University
Morphology and reproductive structures of Anotrichium yagii (Okam.) Baldock were investigated with field and laboratory cultured materials in Korea. As a result, basic diagnositc morphology of the species agreed with the original description by Okamura, except for about 6 cm high thallus and 10 times as long as broad cell size. Developmental anatomy of the procarpic structure was different from Japanese plants, but rather identical to the other Australian species of the genus. After fertilization, the diploid nucleus transferred from carpogonium to supporting cell through either connecting cells or connecting bridge. However, in case of connecting bridge formation our plants did not produced auxiliary cell in order to accept the diploid nucleus, but transferred the nucleus directly to supporting cell through the bridge. In laboratory culture the plants showed basically the same diagnostic characters as the field materials, and took four to five months to complete a Polysiphonia-type life history.
Key words: Anotrichium yagii, Ceramiaceae, laboratory culture, life history, sexual reproduction, Rhodophyta

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