Morphological Variations of the Marine Diatom Genus Actinoptychus in the Coastal Waters of Korea

Lee, Jin-Hwan;Chang, Man

  • Published : 1996.12.01

Abstract

A study out the fine structure of the marine diatom Actinoptychus species has been carried out for taxonomical purposes during the period from January 1983 to October 1992 in the coastal waters of Korea. The present study deals with nine Actinoptychus species, A. adriaticus var. pumila, A. affinis, A. annulatus, A. maculatus, A senarius, A. simbirskianus, A. splendens A. sp.1 and A. sp.2, on the basis of the cell shapes, cell diameters, number of sectors, central hyaline zone and narrow hyaline line or zone, shape and position of the labiate process, areolar shape, and number of areolae and areolations. Among them, only the valve shape of A. annulatus was triangular, but the other six species were disc-shaped. There were variations of the number of sectors at the valve surface showing alternately raised and depressed sectors, except for A. annulatus: 6 sectors in A. senarius, A. simbirskianus, A. sp.2, 12 sectors in A. adriaticus var. pumila, 14 sectors in A. affinis and A. maculatus, 12-22 sectors in A. splendens and 12-16 sectors in A. sp. 1. There were no differences in the cell diameters of each species compared with previous reports. All species showed a central hyaline zone on the external and internal valve. There was narrow hyaline zone near the valve margin in A. adriaticus var. pumila, A. affinis, A. maculatus, A. splendens except A. senarius. A. splendens showed a hyaline line from the central area to half of the valve margin. Most of exterior areolation was irregular except for A. affinis, but that of the interior was regular.

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References

  1. Micropaleontology v.25 Middle miocene marine diatoms from the Hawthorn formation within the Ridgeland Trough, south Carolina and Georgia Abbott, W.H.;Andrews, G.W.
  2. Ann. Ford. Bot. Buitenz v.44 Plankton diatoms of the Java Sea Allen, W.E.;Cupp, E.E.
  3. Nova Hedwigia, Beih. v.64 Morphological variations in the miocene diatom Actinoptychus heliopetta Grunow Andrews, G.W.
  4. Nova Hedwigia v.53 Proposals for a standardization of diatom terminology and diagnoses Anonymous
  5. Bull. Scripps Inst. Oceanogr., Univ. California Marine plankton diatoms of the west coast of north America Cupp, E.E.
  6. Atlas of diatoms. Madras Science Foundation. 77 plates Desikachary, T.V.
  7. Bibliotheca Phycologia v.41 Diatoms in eastern Australia Foged, N.
  8. Nova Hedwigia v.45 Coscinodiscineae: Some consistent patterns in diatom morphology Fryxell, G.A.;Hasle, G.R.
  9. The diatoms of the USSR, Fossil and recent v.2 no.1 Pyxidiculaceae, Thalassiosiropsidaceae, Triceratiaceae, Thalassiosiraceae. Leningrad Glezer, S.I.;Makarova, I.V.;Mosseeva, A.I.;Nikolaev, V.A.
  10. Mar. Biol. Sta. v.7 Plankton diatoms of Puget Sound. Publ. Puget Sd. Gran, H.H.;Angst, E.C.
  11. Notebook of International phytoplankton taxonomy course;A guide to marine plankton diatoms Hasle, G.R.
  12. Trans. Am. Microsc. Soc. v.89 Diatoms: cleaning and mounting for light microscopy Hasle, G.R.;Fryxell, G.A.
  13. Br. Phycol. J. v.21 The diatom genera Stellarima and sympolophora with comments on the genus Actinoptychus Hasle, G.R.;Sims, P.A.
  14. Marine diatoms;Identigying marine diatoms and dinoflagellates Hasle, G.R.;Syvertsen, E.E.;Tomas, C.R.(ed.)
  15. Discovery Report v.16 The plankton diatoms of the southern seas Hendey, N.I.
  16. An introductory account of the smaller algae of British coastal waters. Part V. Bacillariophyceae. Fishery Investigations Ser. IV. Hendey, N.I.
  17. Die Kieselagen Deutschlands, Osterreichs und der Schweiz;Kryptogamen-Floravon Deutschland. Osterreich und der Schweiz Hustedt, F.;Rabenhorst(ed.)
  18. The marine benthic diatoms in China Jin, D.X.;Zhaodi, C.;Junmin, L.
  19. Wiss. Ergebn. Dttsch. Tiefsee-Exped. v.II no.Teil 2 Das phytoplankton des Atlantischen Oceans nach dem material der deutschen Tiefsee-Expedition Karsten, G.
  20. Plankton diatoms Kokubo, S.
  21. Ark. Bot. v.33A no.17 Elektronenmikroskopische untersuchungen von Diatomeen-membranen Kolbe, R.W.
  22. The plankton diatoms of northern seas. Ray Soc. Publ. No. 116 Lebour, M.V.
  23. J. Nat. Sci., Sangmyung Women's Univ. v.2 Additional check-list of marine planktonic algae in the coastal waters of Korea. I. bacillariophyceae Lee, J.H.
  24. The diatoms biology and morphology of the genera Round, F.E.;Craford, R.M.;Mann, D.G.
  25. Atlas der diatomaceenkunde Schmidt, A.
  26. Nova Hedwigia v.39 First symposium on recent and fossil marine diatoms Simonsen, R.
  27. Bacillaria v.2 The diatom system: ideas onphylogeny Simonsen, R.
  28. Memoire O.R.S.T.O.M. v.31 Diatomees planctoniques du Canal de Mozambique et de l'ile Maurice Sournia, A.
  29. Proc. Indian Acad. Sci. v.24 A systematic account of the marine plankton diatoms of Madras coast Subrahmanyan, R.
  30. Florida Dept. Nat. Res., Mar. Res. Lab. v.34 Nearshore marine ecology at Hutchinson Island, Florida: 1971-1974. VII. Phytoplankton, 1971-1973 Tester, L.A.;Steidinger, K.A.
  31. Catalogue of the fossil and recent genera and species of diatoms and their synonyms. Part I. Acanthoceros-Bacillaria Van Landingham, S.L.
  32. Occasional papers of the California Academy of Sciences no.63 Miocene and Pliocene marine diatoms from California Wornardt, W.W. Jr.