Abstract
The fine structure of the type species of the genusCyanothece Komárek 1976,C. aeruginosa, is described and compared with the main cytological characteristics of morphologically related members of the generaCyanobium, Cyanobacterium andSynechococcus. Several morphological features, such as cell walls with thick outer layers containing a special type of vesicles, position of thylakoids, “keritomy” (net-like appearance of protoplast caused by arrangement of thylakoids, net-like nucleoids and/or by tendency to form intrathylakoidal spaces) and a special structure of mucilaginous envelopes were found to be characteristic of this genus, supporting its separate position among coccal cyanoprokaryotes (cyanobacteria, cyanophytes). The taxonomic significance of ultrastructural features in all mentioned genera is discussed.
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References
Albertano, P., Lapenta, V., 1994: Effects of light and calcium deficiency on development and structure of threeOscillatoriales. — Arch. Hydrobiol./Algolog. Studies75: 53–69.
Bailey-Watts, A. E., Bindloss, M. E., Belcher, J. H., 1968: Freshwater primary production by a blue-green alga of bacterial size. — Nature (London)220: 1344–1345.
Campbell, S., Golubic', S., 1985: Benthic cyanophytes (cyanobacteria) of Solar Lake (Sinai). — Arch. Hydrobiol./Algolog. Studies38/39: 311–329.
Cepák, V., 1993: Morphology of DNA containing structures (nucleoids) as a prospective character in cyanophyte taxonomy. — J. Phycol.29: 844–852.
—, 1996: Nucleoid morphology in the coccal cyanophyteCyanothece halobia (Chroococcales, Cyanophyta) — a DAPI fluorescnce study. — Phycologia35: 523–552.
—, 1991: DNA containing structures (nucleoids) in some cyanophytes/cyanobacteria as revealed by DAPI fluorescent staining. — Arch. Hydrobiol./Algolog. Studies64: 25–39.
Chou, H.-M., Huang, T.-C., 1991: Ultrastructure of the aerobic, nitrogen-fixing unicellular cyanobacteriumSynechococcus sp. RF-1. — Arch. Hydrobiol./Algolog. Studies64: 53–59.
Edwards, M. R., Berns, D. S., Ghiorse, W. C., Holt, S. C., 1968: Ultrastructure of the thermophilic blue-green alga,Synechococcus lividus Copeland. — J. Phycol.4: 283–298.
Gantt, E., Conti, S. F., 1969: Ultrastructure of blue-green algae. — J. Bact.97: 1486–1493.
Geitler, L., 1925:Cyanophyceae. — InPascher, A., (Ed.): Die Süsswasser-Flora Deutschlands, Österreichs und der Schweiz,12. — Jena: G. Fischer.
—, 1960: Schizophyzeen. — InZimmermann, W., Ozenda, P., (Eds): Handbuch der Pflanzenanatomie,6 (1). — Berlin: Borntraeger.
Komárek, J., 1976: The taxonomic review of the generaSynechocystis Sauv. 1892,Synechococcus Näg. 1849, andCyanothece gen. nov. (Cyanophyceae). — Arch. Protistenk.118: 119–179.
—, 1995: Nomenclatural novelties in chroococcalean cyanoprokaryotes. — Preslia (Praha)67: 15–23.
—, 1998:Cyanoprokaryota I.Chroococcales. — InEttl, H., Gärtner, G., Gerloff, H., Heynig, G., Mollenhauer, D., (Eds): Süsswasserflora von Mitteleuropa,19 (1). — Stuttgart, Jena: G. Fischer (in press).
Kuroiwa, T., Suzuki, T., 1980: An improved method for the demonstration of the in situ chloroplast nuclei in higher plants. — Cell Struct. Funct.5: 195–197.
Lang, N. J., Whitton, B. A., 1973: Arrangement and structure of thylakoids. — InCarr, N. G., Whitton, B. A., (Eds): The biology of blue-green algae. — Bot. Monographs9: 66–79.
Nägeli, C., 1849: Gattungen einzelliger Algen. — Neue Denkschr. Allg. Schweiz. Natur. Ges.10: 1–139.
Reddy, K. J., Haskell, J. B., Sherman, D. M., Sherman, L. A., 1993: Unicellular, aerobic nitrogen-fixing cyanobacteria of the genusCyanothece. — J. Bacteriol., Mar.1993: 1284–1292.
Rippka, R., Cohen-Bazire, G., 1983: TheCyanobacteriales: a legitimate order based on the type strainCyanobacterium stanieri? — Ann. Microbiol. (Inst. Pasteur)134B: 21–36.
Roussomoustakaki, M., Anagnostidis, K., 1991:Cyanothece halobia, a new planktic chroococcalean cyanophyte from Hellenic heliothermal saltworks. — Arch. Hydrobiol./Algolog. Studies64: 71–95.
Skuja, H., 1956: Taxonomische und biologische Studien über das Phytoplankton schwedischer Binnengeswässer. — Nova Acta Reg. Soc. Sci. upsal., ser. 4,16(3): 1–404.
Staub, R., 1961: Ernährungsphysiologisch-autökologische Untersuchungen an der planktonischen BlaualgeOscillatoria rubescens DC. — Schweiz. Z. Hydrol.23: 82–198.
Tschermak-Woess, E., Schöller, A., 1982: Verteilung und Aufteilung der DNS in einigen Cyanophyceen, festgestellt durch ihre DAPI-Fluoreszenz. — Pl. Syst. Evol.140: 207–233.
Zachleder, V., Cepák, V., 1987: Visualization of DNA containing structures by fluorochrome DAPI in those algal cells which are not freely permeable to the dye. — Arch. Hydrobiol./Algolog. Studies.47: 157–168.
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Komárek, J., Cepák, V. Cytomorphological characters supporting the taxonomic validity ofCyanothece (Cyanoprokaryota) . Pl Syst Evol 210, 25–39 (1998). https://doi.org/10.1007/BF00984725
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DOI: https://doi.org/10.1007/BF00984725