Enzymatic activities of three ectomycorrhizal types of Quercus robur L. in relation to tree decline and thinning
| Autor: | Lucio Montecchio, Linda Scattolin, Elena Mosca, Jean Garbaye |
|---|---|
| Přispěvatelé: | Universita di Padova, Viote del Monte Bondone, Centro di Ecologia Alpina, Interactions Arbres-Microorganismes (IAM), Institut National de la Recherche Agronomique (INRA)-Université de Lorraine (UL) |
| Rok vydání: | 2007 |
| Předmět: |
0106 biological sciences
QUERCUS ROBUR FOREST DECLINE Soil Science [SDV.SA.SDS]Life Sciences [q-bio]/Agricultural sciences/Soil study 01 natural sciences Microbiology Quercus robur ECTOMYCORRHIZA Botany Mycorrhiza Thinning biology Soil organic matter ENZYMATIC ACTIVITIES 04 agricultural and veterinary sciences 15. Life on land FOREST THINNING biology.organism_classification Fagaceae Russula Ectomycorrhiza 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Clavulina cinerea 010606 plant biology & botany |
| Zdroj: | Soil Biology and Biochemistry Soil Biology and Biochemistry, Elsevier, 2007, 39 (11), pp.2897-2904. ⟨10.1016/j.soilbio.2007.05.033⟩ |
| ISSN: | 0038-0717 |
| Popis: | International audience; In a declining oak forest, a thinning treatment was performed in August 2004, targeting trees belonging to two decline classes. The whole ectomycorrhizal (EM) community was dominated by the fungal symbionts Clavulina cinerea, Tomentella sublilacina and Russula spp. The potential activities of eight secreted enzymes, involved in mobilizing nutrients (N, P) from soil organic matter, were measured on these three EM types in winter and spring 2006 using multiwell microplate photometric and fluorogenic methods. The enzymatic activities recorded in winter were generally significantly higher than in spring. Most of the enzyme activities studied, and particularly phosphatase and b-glucosidase, changed according to both decline class and sylvicultural treatment. In spring, each anatomotype displayed different enzymatic profile according to the decline class. These results suggest that the potential enzymatic activity of ectomycorrhizae adapts to the changes resulting from the sylvicultural treatment and reacts to the anthropic disturbance by adjusting to the new resource structure. 2007 Elsevier Ltd. All rights reserved. |
| Databáze: | OpenAIRE |
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