Abstract
Comparative ultrastructural investigations on many isolates ofTetraselmis from Japan and the Pacific coast of North America, and on cultures from the Culture Centre of Algae and Protozoa, Cambridge, England, have revealed that the species have characteristic fine structural features of the pyrenoid. Using the pyrenoid structure as a basic character it is proposed that the genus be subdivided into four subgenera,Tetraselmis, Prasinocladia, Tetrathele andParviselmis. In the present paper, species of the subgenusTetraselmis, includingT. cordiformis, T. ascus, T. convolutae andT. astigmatica sp. nov., are described in detail.
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References
Butcher, R.W. 1959. An introductory account of the smaller algae of British coastal waters. Part I: Introduction and Chlorophyceae. Fish. Invest. Minist. of Agricult., Fish. & Food, Ser. IV,1: 1–74.
Carter, H.J. 1858. On fecundation inEudorina elegans andCryptoglena. Ann. & Mag. Nat. Hist. III,2: 237–253, pl. 81.
Chihara, M. 1963. The life history ofPrasinocladus ascus as found in Japan, with special reference to the systematic position of the genus. Phycologia3: 19–28.
— andT. Hori. 1972. The fine structure ofPrasinocladus ascus andPlatymonas species found in Japan, with special reference to their taxonomy.In: K. Nisizawaet al., ed, Proc. 7th Internat. Seaweed Symp., Sapporo, 1971 p. 188–191. Univ. Tokyo Press, Tokyo.
Dill, O. 1895. Die GattungChlamydomonas und ihre nächsten Verwandten. Jahrb. Wiss. Bot.28: 323–358.
Ettl, H. andO. Ettl. 1959. Zur Kenntnis der Klasse Volvophyceae. II (Neue oder wenig bekannte Chlamydomonadalen). Arch. Protistenk.104: 51–112.
Hori, T. andM. Chihara. 1974. Studies on the fine structure ofPrasinocladus ascus (Prasinophyceae). Phycologia13: 307–315.
—S. Tanimoto andM. Chihara. 1976. Geographic distribution ofPlatymonas andPrasinocladus on the coast of Japan (2). Bull. Jap. Soc. Phycol.24: 146–148.
Kuckuck, O. 1894. Bemerkungen zur marinen Algenflora von Helgolands. Wiss. Meeresunters. N.F. Abt. Helgoland1: 225–263.
Manton, I. andM. Parke. 1965. Observations on the fine structure of two species ofPlatymonas with special reference to flagellar scales and the mode of origin of the theca. J. Mar. Biol. Ass. U.K.45: 743–754.
Margalef, R. 1946. Contribución al conocimiento del género Platymonas (Volvocales). Collect. Bot.1: 95–105.
Melkonian, M. 1979. An ultrastructural study of the flagellateTetraselmis cordiformis Stein (Chlorophyceae) with emphasis on the flagellar apparatus. Protoplasma98: 139–151.
— andH. Robenek. 1979. The eyespot of the flagellateTetraselmis cordiformis Stein (Chlorophyceae): structural specialization of the outer chloroplast membrane and its possible significance in phototaxis of green algae. Protplasma100: 183–197.
Norris, R.E., T. Hori andM. Chihara. 1980. Revision of the genusTetraselmis (Class Prasinophyceae). Bot. Mag. Tokyo.93: 317–339.
— andB.R. Pearson. 1975. Fine structure ofPyramimonas parkeae sp. nov. (Chlorophyta, Prasinophyceae). Arch. Protistenk.117: 192–213.
Parke, M. andI. Manton. 1967. The specific identity of the algal symbiont inConvoluta roscoffensis. J. Mar. Biol. Ass. U.K.47: 445–464.
Proskauer, J. 1950. On Prasinocladus. Amer. J. Bot.37: 59–66.
Provasoli, L., T. Yamasu andI. Manton. 1968. Experiments on the resynthesis of symbiosis inConvoluta roscoffensis with different flagellate cultures. J. Mar. Biol. Ass. U.K.48: 465–479.
Stein, F.R.V. 1878. Der Organismus der Infusionsthiere, Abt. III, Hälfte I, Flagellaten. Wilhelm Engelmann, Leipzig.
Tanimoto, S. andT. Hori. 1975. Geographic distribution ofPlatymonas andPrasinocladus on the Pacific coast of Japan (1). Bull. Jap. Soc. Phycol.23: 14–18.
West, G.S. 1916. Algological notes XVIII–XXIII. J. Bot., London54: 1–10.
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Hori, T., Norris, R.E. & Chihara, M. Studies on the ultrastructure and taxonomy of the genusTetraselmis (Prasinophyceae). Bot Mag Tokyo 95, 49–61 (1982). https://doi.org/10.1007/BF02493410
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DOI: https://doi.org/10.1007/BF02493410