• Allen, P. J. (1942). Changes in metabolism of wheat leaves induced by infection with powdery mildew. Amer. J. Bot., 29, 425.
  • Allen, P. J. (1953). Toxin and tissue respiration. Phytopathology 43, 221.
  • Bateman, D. F. & Daly, J. M. (1967). The respiration pattern of Ryizoctonia-infected bean hypocotyls in relation to maturation. Phytopathology, 57, 127.
  • Hadley, G. (1969). Cellulose as a carbon source for orchid mycorrhiza. New Phytol., 68, 933.
  • Hadley, G. & Williamson, B. (1971). Analysis of the post-infection growth stimulus in orchid mycorrhiza. New Phytol., 70, 445.
  • Hadley, G. & Williamson, B. (1972). Features of mycorrhizal infection in some Malayan orchids. New Phytol., 71, 1111.
  • Hadwiger, L. A., Hess, S. L. & Broembsen, S. U. (1970). Stimulation of phenylalanine ammonia lyase activity and phytoalexin production. Phytopathology, 60, 332.
  • Hampton, R. E. (1963). Activity of some soluble oxidases in carrot slices infected with Thielaviopsis basicola. Phytopathology, 53, 497.
  • Hellinga, J. J. A. (1940). On the effect of substances produced by fungi on the respiration of potato tubers. Nederland. Akad. Welenschap. Proc., 43, 249.
  • Hislop, E. C. & Stahmann, M. A. (1971). Peroxidase and ethylene production by barley leaves infected with Erysiphe graminis f. sp. hordei. Physiol. Pl. Pathol., 1, 297.
  • Krupka, L. R. (1959). Metabolism of oats susceptible to Helminthosporium victoriae and victorin. Phytopathology, 49, 587.
  • Marston, M. E. (1967). Clonal multiplication of orchids by shoot meristem culture. Sci. Hort., XIX, 80.
  • Maxwell, D. P. & Bateman, D. F. (1967). Changes in the activities of some oxidases in extracts of Rhizoctonia-infected bean hypocotyls in relation to lesion maturation. Phytopathology, 57, 132.
  • Mokahel, M. A. M. (1974). Physiological studies on Orchid-fungus systems. Ph.D. thesis. University of Aberdeen.
  • Nuesch, J. (1963). Defence reactions in orchid bulbs. Symp. Soc. gen. Microbiol., number 13, p. 335.
  • Seever, P. M. & Daly, J. M. (1970). Studies on wheat stem rust resistance controlled at the Sr-6 locus. II. Peroxidase activities. Phytopathology, 60, 1642.
  • Simons, T. J. & Ross, A. F. (1970). Enhanced peroxidase activity associated with induction of resistance to tobacco mosaic virus in hypersensitive tobacco. Phytopathology, 60, 383.
  • Simons, T. J. & Ross, A. F. (1971). Metabolic changes associated with systemic induced resistance to tobacco mosaic virus in Samsun NN tobacco. Phytopathology, 61, 293.
  • Stahmann, M. A. & Demorest, D. M. (1973). Changes in enzymes of host and pathogen with special reference to peroxidase interaction. In: Fungal Pathogenicity and the Plant's Response (Ed. by R. J. W.Byrde & C. V.Cutting), pp. 405422. Academic Press, London .