Intervention des lectines fongiques dans les événements précoces de reconnaissance arbre/champignon au cours de la formation des ectomycorhizes
| Autor: | Martine Dusser, Jean Guillot, Michel Giollant, Mireille Damez |
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| Rok vydání: | 1994 |
| Předmět: | |
| Zdroj: | Acta Botanica Gallica. 141:443-447 |
| ISSN: | 2166-3408 1253-8078 |
| DOI: | 10.1080/12538078.1994.10515181 |
| Popis: | Summary The occurence of lectin activity in a large number of higher fungi and the existence of an often high degree of specificity in the associations of fungi with trees prompted us to determine whether the fungal lectins might be involved in the recognition of the symbionts. To this end, we chose as a model the milk cap mushrooms of the Dapetes group, all of which are associated with conifers, but which exhibit a remarkable specificity. Thus, the morphologically very similar Lactarius deliciosus, Lactarius deterrimus, and Lactarius salmonicolor are associated with the pine, the spruce, and the fir, respectively. In order to back up the lectinic hypothesis, we have confirm three essential points: 1) The lectins isolated from the three milk cap mushrooms are different in structure and specificity. Although their molecular weight are very close, lectins have different subunits, isoelectric point and amino acid composition. All the lectins are specifically inhibited by the disaccharide D-Gals1 → 3D-GalNAc,... |
| Databáze: | OpenAIRE |
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