caa a22 4500 477111254 CHVBK 20180405111609.0 cr unu---uuuuu 170330e19960201xx s 000 0 eng 10.1007/BF00009329 doi (NATIONALLICENCE)springer-10.1007/BF00009329 Acidification effects on vesicular-arbuscular mycorrhizal (VAM) infection, growth and nutrient uptake of established heathland herb species [Elektronische Daten] [B. Heijne, D. van Dam, G. Heil, R. Bobbink] A greenhouse experiment was carried out to determine whether the decline of Arnica montana L. in heathland vegetation in the Netherlands could be caused by a detrimental effect of soil acidification on vesicular-arbuscular mycorrhiza of this species. Arnica montana and two non-declining species from the same habitat, Hieracium pilosella L. and Deschampsia flexuosa (L.) Trin., were grown with and without the vesicular-arbuscular mycorrhizal (VAM) fungus Glomus fasciculatum (Thaxter sensu Gerdemann) Gerd. and Trappe in pots with an extremely nutrient-poor, sandy soil. They were percolated weekly with nutrient solution with different pH values, viz. 5.5, 4.5, 3.5 and 2.5. At intervals of three weeks and up to 12 weeks, measurements were made on growth, nutrient uptake and VAM infection. In the most acid treatments growth and nutrient uptake were reduced in all species. VAM infection decreased only slightly with decreasing pH of the treatments. Without VAM, Arnica montana died and Hieracium pilosella hardly grew at the most acid treatments. Therefore it is concluded that VAM decreased the stress caused by the most acid treatments. Leachate from the most acid treatment had a pH of approximately 4, and contained considerable amounts of aluminium, dissolved from the solid phase of the soil. This might have played a role in the detrimental effects on the plants in the case of the most acid treatment. No evidence was found in this experiment that the decline of Arnica montana was due to detrimental effects of soil acidification on VAM of this species. Kluwer Academic Publishers, 1996 decline of Arnica montana nationallicence heathland vegetation nationallicence pH nationallicence soil acidification nationallicence VAM nationallicence vesicular-arbuscular mycorrhiza nationallicence Heijne B. Department of Plant Ecology and Evolutionary Biology, University of Utrecht, P.O. Box 800.84, 3508, TB Utrecht, The Netherlands aut van Dam D. Department of Plant Ecology and Evolutionary Biology, University of Utrecht, P.O. Box 800.84, 3508, TB Utrecht, The Netherlands aut Heil G. Department of Plant Ecology and Evolutionary Biology, University of Utrecht, P.O. Box 800.84, 3508, TB Utrecht, The Netherlands aut Bobbink R. Department of Plant Ecology and Evolutionary Biology, University of Utrecht, P.O. Box 800.84, 3508, TB Utrecht, The Netherlands aut Plant and Soil Kluwer Academic Publishers 179/2(1996-02-01), 197-206 0032-079X 179:2<197 1996 179 11104 https://doi.org/10.1007/BF00009329 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00009329 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Heijne B. Department of Plant Ecology and Evolutionary Biology, University of Utrecht, P.O. Box 800.84, 3508, TB Utrecht, The Netherlands aut NATIONALLICENCE 700 1- van Dam D. Department of Plant Ecology and Evolutionary Biology, University of Utrecht, P.O. Box 800.84, 3508, TB Utrecht, The Netherlands aut NATIONALLICENCE 700 1- Heil G. Department of Plant Ecology and Evolutionary Biology, University of Utrecht, P.O. Box 800.84, 3508, TB Utrecht, The Netherlands aut NATIONALLICENCE 700 1- Bobbink R. Department of Plant Ecology and Evolutionary Biology, University of Utrecht, P.O. Box 800.84, 3508, TB Utrecht, The Netherlands aut NATIONALLICENCE 773 0- Plant and Soil Kluwer Academic Publishers 179/2(1996-02-01), 197-206 0032-079X 179:2<197 1996 179 11104 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer