Summary
Types of root infection were analysed in healthy dominant and sub-dominant plants of zonal and azonal vegetation above the timberline in the Central and Northern Calcareous Alps of Austria. In the open nival zone vegetation, infection by fungi of the Rhizoctonia type was predominant, vesicular-arbuscular mycorrhizal infection, which was mostly of the fine endophyte (Glomus tenuis) type, being light and mainly restricted to grasses in closed vegetation patches. More extensive Glomus tenuis infection was found in the alpine grass heath, but in Carex, Rhizoctonia was again the most important fungus. The ericaceous plants of the dwarf shrub heath have typical ericoid infection, but quantitative analysis reveals a decrease of infection intensity with increase of altitude. The possible function of the various types of root infection are discussed, and the status of Rhizoctonia as a possible mycorrhizal fungus is considered.
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References
Burgeff, H.: Die Wurzelpilze der Orchideen. Jena: Fischer 1909
Crush, J.R.: The effect of Rhizophagus tenuis mycorrhizas on rye-grass, cocksfoot and sweet vernal. New Phytol. 72, 965–973 (1973)
Ellenberg, H.: Vegetation Mitteleuropas mit den Alpen. Stuttgart: Ulmer 1978
Fontana, A.: Micorrize ectotrofiche in una Ciperacea: Kobresia belliardi Degl. Giorn. Bot. Ital. 70, 639–641 (1963)
Fontana, A.: Ectomycorrhizae in Polygonum viviparum L. Third North American Conference on Mycorrhizae, August 23–25, pp. 53. Athens, Georgia (1977)
Harley, J.L.: The biology of mycorrhiza. London: Hill (1969)
Haselwandter, K.: Quantification of mycorrhizal infection in Ericaceae. Proceedings of the IUFRO Symposium on Root Physiology and Symbiosis, Nancy, France, 11–15 September 1978, pp. 477–485 (1978)
Johnson, P.N.: Effects of soil phosphate level and shade on plant growth and mycorrhizas. N.Z.J. Bot. 14, 333–340 (1976)
Johnson, P.N.: Mycorrhizal Endogonaceae in a New Zealand forest. New Phytol. 78, 161–170 (1977)
Labroue, L., Carles, J.: Le cycle de l'azote dans les sols alpins du Pic du Midi de Bigorre (Hautes-Pyrénées). Oecol. Plant. 12, 55–77 (1977)
Larcher, W.: Ergebnisse des IBP-Projekts “Zwergstrauchheide Patscherkofel”. Sitzungsber. Österr. Akad. Wiss., Math.-naturw. Kl., Abt. I, 186, 301–371 (1977)
Miller, O.K., Laursen, G.A.: Ecto- and endomycorrhizae of arctic plants at Barrow, Alaska. In: Ecological Studies, Vol. 29, Vegetation and Production Ecology of an Alaskan Arctic Tundra (L.L. Tieszen, ed.), pp. 229–237. Berlin-Heidelberg-New York: Springer 1978
Moser, W., Moser, M.: Das MaB-6-Gesamtvorhaben Obergurgl. Sitzungsber. Österr. Akad. Wiss., Math.-naturw. Kl., Abt. I, 184, 159–171 (1975)
Parmeter, J.R.: Rhizoctonia solani: Biology and Pathology. Berkeley-Los Angeles: University of California Press (1970)
Pearson, V., Read, D.J.: The biology of mycorrhiza in the Ericaceae. I. The isolation of the endophyte and synthesis of mycorrhizas in aseptic culture. New Phytol. 72, 371–379 (1973)
Pérembolon, M., Hadley, G.: Production of pectic enzymes by pathogenic and symbiotic Rhizoctonia strains. New Phytol. 64, 144–151 (1965)
Phillips, J.M., Hayman, D.S.: Improved procedures for clearing roots and staining parasitic and vesicular-arbuscular mycorrhizal fungi for rapid assessment of infection. Trans. Br. Mycol. Soc. 55, 158–161 (1970)
Powell, C.Ll., Daniel, J.: Mycorrhizal fungi stimulate uptake of soluble and insoluble phosphate fertilizer from a phosphate-deficient soil. New Phytol. 80, 351–358 (1978)
Read, D.J.: The biology of mycorrhiza in heathland ecosystems with special reference to the nitrogen nutrition of the Ericaceae. In: Microbiol Ecology (M.W. Loutit and J.A.R. Miles, eds.), pp. 324–328. Berlin-Heidelberg-New York: Springer 1978
Read, D.J., Haselwandter, K.: Observations on the mycorrhizal status of some alpine plant communities. New Phytol., in press 1980
Read, D.J., Kianmehr, H., Malibari, A.: The biology of mycorrhiza in Helianthemum Mill. New Phytol. 78, 305–312 (1977)
Read, D.J., Koucheki, H.K., Hodgson, J.: Vesicular-arbuscular mycorrhiza in natural vegetation systems. I. The occurrence of infection. New Phytol. 77, 641–653 (1976)
Read, D.J., Stribley, D.P.: The effect of mycorrhizal infection on nitrogen and phosphorus nutrition of ericaceous plants. Nature (London) 244, 81–82 (1973)
Rehder, H., Schäfer, A.: Nutrient turnover studies in alpine ecosystems. IV. Communities of the Central Alps and comparative survey. Oecologia (Berl.) 34, 309–327 (1978)
Sanders, F.E., Mosse, B., Tinker, P.B.: Endomycorrhizas. London-New York-San Francisco: Academic Press 1975
Stribley, D.P., Read, D.J.: The biology of mycorrhiza in the Ericaceae. IV. The effect of mycorrhizal infection on uptake of 15N from labelled soil by Vaccinium macrocarpon Ait. New Phytol. 73, 1149–1155 (1974)
Stribley, D.P., Read, D.J.: The biology of mycorrhiza in the Ericaceae. VII. The relationship between mycorrhizal infection and the capacity to utilise simple and complex organic nitrogen sources. New Phytol., in press 1979
Worley, J.F., Hacskaylo, E.: The effect of available soil moisture on the mycorrhizal association of Virginia pine. For. Sci. 5, 267–268 (1959)
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Haselwandter, K., Read, D.J. Fungal associations of roots of dominant and sub-dominant plants in high-alpine vegetation systems with special reference to mycorrhiza. Oecologia 45, 57–62 (1980). https://doi.org/10.1007/BF00346707
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DOI: https://doi.org/10.1007/BF00346707