Hydrogen Transfer Between Neocallimastix Frontalis and Selenomonas Ruminantium Grown in Mixed Culture

  • Anthony J. Richardson
  • Colin S. Stewart
Part of the Federation of European Microbiological Societies Symposium Series book series (FEMS, volume 54)


The anaerobic fungus Neocallimastix frontalis ferments cellulose to H2, C02, formate, acetate, lactate and ethanol (Bauchop & Mountfort, 1981). Succinate is also a fermentation product of some anaerobic fungi (Prins & Marvin-Sikkema, personal communication, Richardson et al., 1989). Theoretically, all of these products could be utilised by other microorganisms. However not all of these potential interactions are likely to occur in the gut. For example, acetate supports the growth of some methanogens in anaerobic ecosystems with slow turnover times, but in the gut acetate is not an important substrate for methanogenesis (Reviewed by Stewart et al., this symposium). Some other potential interactions based on the utilisation of fungal fermentation products are summarised schematically in Fig 1, which is compiled from the known properties of the named microorganisms (Hungate, 1966; Stewart & Bryant, 1988).


Mixed Culture Fermentation Product Anaerobic Fungus Rumen Fungus Anaerobic Rumen 
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  1. Bauchop, T., and Mountfort, D.O., 1981, Cellulose fermentation by a rumen anaerobic fungus in both the absence and presence of rumen methanogens, Appl. Environ. Microbiol, 42: 1103 – 1110.Google Scholar
  2. Henderson, C., 1980, The influence of extracellular hydrogen on the metabolism of Bacteroides ruminicola, Anaerovibrio lipolyticaand Selenomonas ruminantium, J. Gen. Microbiol. 119: 485 – 491.PubMedGoogle Scholar
  3. Hungate, R. E., 1966, “The Rumen and its Microbes,”Academic Press, N.Y.Google Scholar
  4. Richardson, A J., Calder, A. G., Stewart, C. S., and Smith, A., 1989, Simultaneous determination of volatile and non-volatile fermentation products of anaerobes by capillary gas-chromatography, Lett. Appl. Microbiol, 9: 5 – 8.Google Scholar
  5. Scheifinger, C. C., and Wolin, M. J., 1973, Propionate formation from cellulose and soluble sugars by combined cultures of Bacteroides succinogenesand Selenomonas ruminantium. Appl. Microbiol., 26: 739 – 795.Google Scholar
  6. Stewart, C. S., and Bryant, M. P., 1988, The rumen bacteria, in: “The Rumen Microbial Ecosystem,” P. N. Hobson, ed., Elsevier Applied Science, London.Google Scholar

Copyright information

© Plenum Press 1990

Authors and Affiliations

  • Anthony J. Richardson
    • 1
  • Colin S. Stewart
    • 1
  1. 1.Rowett Research InstituteBucksburn AberdeenUK

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