• [1]
    Stetter, K.O. (1999) Extremophiles and their adaptation to hot environments. FEBS Lett 452, 2225.
  • [2]
    Woese, C.R., Kandler, O., Wheelis, M.L. (1990) Towards a natural system of organisms: proposal for the domains Archaea, Bacteria and Eucarya. Proc. Natl. Acad. Sci. USA 87, 45764579.
  • [3]
    Stetter, K.O. (2000) Microorganisms in high-temperature sulfur environments. In: Embryonic Encyclopedia of Life Sciences. Nature Publishing Group, London.
  • [4]
    DeLong, E.F. (1992) Archaea in coastal marine environments. Proc. Natl. Acad. Sci. USA 89, 56855689.
  • [5]
    DeLong, E.F. (2003) Oceans of Archaea. ASM News 69, 503511.
  • [6]
    Fuhrman, J.A., McCallum, K., Davis, A.A. (1992) Novel major archaebacterial group from marine plankton. Nature 356, 148149.
  • [7]
    Olsen, G.J., Lane, D.J., Giovannoni, S.J., Pace, N.R., Stahl, D.A. (1986) Microbial ecology and evolution: a ribosomal RNA approach. Ann. Rev. Microbiol 40, 337365.
  • [8]
    Pace, N.R., Stahl, D.A., Lane, D.J., Olsen, G.J. (1986) The analysis of natural microbial populations by ribosomal RNA sequences. Adv. Microbiol. Ecol 9, 155.
  • [9]
    Rabenhorst, L. (1865) Flora Europea algarum. Aquae dulcis et submarinae: Sectio II. Algas phycochromaceas complectens. Verlag von Eduard Kummer, Leipzig..
  • [10]
    Winogradsky, S. (1888) Beiträge zur Morphologie und Physiologie der Bacterien. Heft I: Zur Morphologie und Physiologie der Schwefelbakterien. Verlag von Arthur Felix, Leipzig..
  • [11]
    Nelson, D.C. (1989) Physiology and biochemistry of filamentous sulfur bacteria. In: Autotrophic Bacteria (Schlegel, H.G., Bowien, B., Eds.), pp.219–238 Springer Verlag, Berlin, Heidelberg, New York..
  • [12]
    Rudolph, C., Wanner, G., Huber, R. (2001) Natural communities of novel archaea and bacteria growing in cold sulfurous springs with a string-of-pearls-like morphology. Appl. Environ. Microbiol 67, 23362344.
  • [13]
    Moissl, C., Rudolph, C., Huber, R. (2002) Natural communities of novel archaea and bacteria with a string-of-pearls-like morphology: molecular analysis of the bacterial partners. Appl. Environ. Microbiol 68, 933937.
  • [14]
    Moissl, C., Rudolph, C., Rachel, R., Koch, M., Huber, R. (2003) In situ growth of the novel SM1 euryarchaeon from a string-of-pearls-like microbial community in its cold biotope, its physical separation and insights into its structure and physiology. Arch. Microbiol 180, 211217.
  • [15]
    Moissl, C., Rachel, R., Briegel, A., Engelhardt H. and Huber, R. (2004) The unique structure of archaeal “hami”, highly complex cell appendages with nano-grappling hooks. Molecular Microbiol. (in press).
  • [16]
    Amann, R.I., Binder, B.J., Olson, R.J., Chisholm, S.W., Devereux, R., Stahl, D.A. (1990) Combination of 16S rRNA-targeted oligonucleotide probes with flow cytometry for analyzing mixed microbial populations. Appl. Environ. Microbiol 56, 19191925.
  • [17]
    Daims, H., Brühl, A., Amann, R., Schleifer, K.-H., Wagner, M. (1999) The domain-specific probe EUB338 is insufficient for the detection of all bacteria: development and evaluation of a more comprehensive probe set. System. Appl. Microbiol 22, 434444.
  • [18]
    Stahl, D.A., Amann, R. (1991) Development and application of nucleic acid probes. In: Nucleic Acid Techniques in Bacterial Systematics (Stackebrandt, E., Goodfellow, M., Eds.), pp.205–248 Wiley, Chichester, England..
  • [19]
    Wagner, M., Amann, R., Kämpfer, P., Assmus, B., Hartmann, A., Hutzler, P., Springer, N., Schleifer, K.H. (1994) Identification and in situ detection of gram-negative filamentous bacteria in activated sludge. System. Appl. Microbiol 17, 405417.
  • [20]
    Großkopf, R., Stubner, S., Liesack, W. (1998) Novel euryarchaeotal lineages detected on rice roots and in the anoxic bulk soil of flooded rice microcosms. Appl. Environ. Microbiol 64, 49834989.
  • [21]
    Burggraf, S., Huber, H., Stetter, K.O. (1997) Reclassification of the crenarchaeal orders and families in accordance with 16S ribosomal RNA sequence data. Int. J. Syst. Bacteriol 47, 657660.
  • [22]
    Burggraf, S., Olsen, G.J., Stetter, K.O., Woese, C.R. (1992) A phylogenetic analysis of Aquifex pyrophilus. System. Appl. Microbiol 15, 352356.
  • [23]
    Lane, D.J. 16S/23S rRNA sequencing. Stackebrandt, E., Goodfellow, M., Eds. Nucleic Acid Techniques in Bacterial Systematics 1991. (1991) Wiley, Chichester, England. 115–175.
  • [24]
    Ludwig, W. (1995) Sequence database (3.3.5). In: Molecular Microbial Ecology Manual (Akkermans, A.D.L., Van Elsas, J.D., De Bruijn, F.J., Eds.), pp.1–22 Kluwer Academic Publishers, Dordrecht, The Netherlands..
  • [25]
    Ludwig, W. and Strunk, O. (1997) ARB: a software environment for sequence data.
  • [26]
    Summit, M., Baross, J.A. (2001) A novel microbial habitat in the mid-ocean ridge subseafloor. Proc. Natl. Acad. Sci. USA 98, 21582163.
  • [27]
    Higgins, D.G., Sharp, P.M. (1988) CLUSTAL: a package for performing multiple sequence alignment on an microcomputer. Gene 73, 237244.
  • [28]
    Engel, A.S., Lee, N., Porter, M.L., Stern, L.A., Bennett, P.C., Wagner, M. (2003) Filamentous Epsilonproteobacteria dominate microbial mats from sulfidic cave springs. Appl. Environ. Microbiol 69, 55035511.
  • [29]
    Palys, T., Nakamura, L.K., Cohan, F.M. (1997) Discovery and classification of ecological diversity in the bacterial world: the role of DNA sequence data. Int. J. Syst. Bacteriol 47, 11451156.
  • [30]
    Yu, Z., Mohn, W.W. (2001) Bacterial diversity and community structure in an aerated lagoon revealed by ribosomal intergenic spacer analyses and 16S ribosomal DNA sequencing. Appl. Environ. Microbiol 67, 15651574.
  • [31]
    Casamayor, E.O., Schäfer, H., Baneras, L., Pedrós-Alió, C., Muyzer, G. (2000) Identification of and spatio-temporal differences between microbial assemblages from two neighbouring sulfurous lakes: comparison by microscopy and denaturing gradient gel electrophoresis. Appl. Environ. Microbiol 66, 499508.
  • [32]
    Chin, K.-J., Lukow, T., Conrad, R. (1999) Effect of temperature on structure and function of the methanogenic archaeal community in an anoxic rice field soil. Appl. Environ. Microbiol 65, 23412349.
  • [33]
    Dojka, M.A., Hugenholtz, P., Haack, S.K., Pace, N.R. (1998) Microbial diversity in a hydrocarbon- and chlorinated-solvent-contaminated aquifer undergoing intrinsic bioremediation. Appl. Environ. Microbiol 64, 38693877.
  • [34]
    Takai, K., Horikoshi, K. (1999) Genetic diversity of archaea in deep-sea hydrothermal vent environments. Genetics 152, 12851297.
  • [35]
    Takai, K., Moser, D.P., DeFlaun, M., Onstott, T.C., Fredrickson, J.K. (2001) Archaeal diversity in waters from deep south african gold mines. Appl. Environ. Microbiol 67, 57505760.