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References

  • Alexander, V. & Kallio, S. (1976). Nitrogenase activity in Peltigera aphthosa and Stereocaulon paschale in early spring. Reports of the Kevo Subarctic Research Station, 11, 3.
  • Bottomley, P. J. & Stewart, W. D. P. (1977). ATP and nitrogenase activity in nitrogen-fixing hetero-cystous blue-green algae. New Phytologist, 79, 625.
  • Crittenden, P. D. & Kershaw, K. A. (1979). Studies on lichen-dominated systems. XXII. The environmental control of nitrogenase activity in Stereocaulon paschale in spruce-lichen woodland. Canadian Journal of Botany, 53, 236.
  • Dua, R. D. & Burris, R. H. (1963). Stability of nitrogen-fixing enzymes and the reactivation of cold labile enzyme. Proceedings of the National Academy of Sciences of the U.S.A., 50, 169.
  • Englund, B. & Mayerson, H. (1974). In situ measurement of nitrogen fixation at low temperatures. Oikos, 25, 283.
  • Fogg, G. E. & Stewart, W. D. P. (1968). In situ determinations of biological nitrogen fixation in Antarctica. British Antarctic Survey Bulletins, 15, 39.
  • Haystead, A., Robinson, R. & Stewart, W. D. P. (1970). Nitrogenase activity in cermets of hetero-cystous and non-heterocystous blue-green algae. Archiv für Mikrabiologie, 74, 235. Hitch, C. J. B. & Stewart, W. D. P. (1973). Nitrogen fixation by lichens in Scotland. New Phytologist, 72, 509.
  • Horne, A. J. (1972). The ecology of nitrogen fixation on Signey Island, South Orkney Wands. British Antarctic Survey Bulletin, 27, 1.
  • Huss-Danell, K. (1977a). Nitrogen fixation by Stereocaulon paschale under field conditions. Canadian Journal of Botany, 55, 585.
  • Huss-Danell, K. (1977b). Nitrogenase activity in the lichen Stertocaulon paschale: recovery after dry storage. Physiologia Piantarum, 41, 158.
  • Huss-Danell, K. (1978). Seasonal variation in the capacity for nitrogenase activity in the lichen Stereocaulon paschale. Near Phytologist, 81, 89.
  • Kaluo, S., Kallio, P. & Rasku, M.-L. (1976). Ecology of nitrogen fixation in Pebigera aphthosa (L.) Willd. in North Finland. Reports of the Kevo Subarctic Research Station, 13, 16.
  • Kallio, S. (1973). The ecology of nitrogen fixation in Stereocaulon paschale. Reports of Kevo Subarctic Research Station, 10, 34.
  • Kallio, P., Suhonen, S. & Kallio, H. (1972). The ecology of nitrogen fixation in Nepkroma arcticum and Solarina crocea. Reports of Kevo Subarctic Research Station, 9, 7.
  • Kershaw, K. A. (1974). Dependence of the level of nitrogenase activity on the water content of the thallus in Pehigera canina, P. evansiana, P. polydactyla and P. praetextata. Canadian Journal of Botany, 52,1423.
  • Kershaw, K. A. (1977a). Physiological-environmental interactions in lichens. II. The pattern of net photosynthetic acclimation in Peltigera canina var. praetextata Hue and P. polydactyla (Neck.) Hoffin. New Phytologist, 79, 377.
  • Kershaw, K. A. (1977b). Physiological-environmental interactions in lichens. III. The rate of net photo-synthetic acclimation in Peltigera canina var. praetextata Hue, and P. polydactyla (Neck.) Hofim. New Phytologist, 79, 391.
  • Kershaw, K. A., MacFahlane, J. D. & Tysiaczny, M. J. (1977). Physiological-environmental interactions in lichens. V. The interaction of temperature with nitrogenase activity in the dark. New. Phytologist, 79, 409.
  • Kershaw, K. A. & Smith, M. M. (1978). Studies on lichen-dominated systems. XXI. The control of seasonal rates of net photosynthesis by moisture, light and temperature in Stereocaulon paschale. Canadian Journal of Botany, 56, 2825.
  • Larson, D. W. & Kershaw, K. A. (1975a). Studies on lichen-dominated systems. XIII. Seasonal and geographical variation of net CO2 exchange of Alectoria ochroleuca. Canadian Journal of Botany, 53, 2598.
  • Larson, D. W. & Kershaw, K. A. (1975b). Studies on lichen-dominated systems. XVL Comparative patterns of net CO2 exchange in Cetraria nivalis and Alectoria ochroleuca collected from a raised-beach ridge. Canadian Journal of Botany, 53, 2884.
  • MacFarlane, J. D. & Kershaw, K. A. (1977). Physiological-environmental interactions in lichens. IV. Seasonal changes in the nitrogenase activity of Peltigera canina var. praetextata Hue. and P. camina var. rufescens (Weiss) Mudd. New Phytologist, 79, 403.
  • MacFarlane, J. D. & Kershaw, K. A. (1978). Thermal sensitivity in lichens. Science, 201, 739.
  • MacFarlane, J. D. & Kershaw, K. A. (1980). Physiological-environmental interactions in lichens. IX. Thermal sensitivity in the lichen ecology. New Phytologist, 84, 669.
  • MacFarlane, J. D., Maikawa, E., Kershaw, K. A. & Oaks, A. (1976). Physiological-environmental interactions in lichens. I. The interaction of light/dark periods and nitrogenase activity in Peltigers polydactyla. New Phytologist, 77, 705.
  • Maikawa, E. & Kershaw, K. A. (1975). The temperature dependence of thallus nitrogenase activity in Peltigera canina. Canadian Journal of Botany, 53, 527.
  • Stewart, W. D. P. (1977). Blue-green algae. In: A Treatise on Dinitrogen Fixation (Ed. by R. W. F.Hardy & W. S.Silver). John Wiley, New York .