tailieunhanh - Báo cáo lâm nghiệp: "des ectomycorhizes naturelles entre le hêtre (Fagus sylvatica) et deux lactaires (Lactarius blennius var viridis et Lactarius subdulcis). Il. Caractérisation cytochimique des interfaces"

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp quốc tế, đề tài:"des ectomycorhizes naturelles entre le hêtre (Fagus sylvatica) et deux lactaires (Lactarius blennius var viridis et Lactarius subdulcis). Il. Caractérisation cytochimique des interfaces. | Ann Sci For 1996 53 991-1003 Elsevier INRA 991 Article original Comparaison des ectomycorhizes naturelles entre le hêtre Fagus sylvatica et deux lactaires Lactarius blennius var viridis et Lactarius subdulcis . II. Caractérisation cytochimique des interfaces JC Pargney A Prevost Laboratoire de biologie forestiere faculte des sciences université Henri-Poincaré Nancy-1 BP 239 54506 Vandceuvre cedex France Reẹu le 24 mars 1995 accepté le 15 mai 1995 Summary - Comparison of natural ectomycorrhizae between beech Fagus sylvatica and two fungi Lactarius blennius var viridisanứ Lactariussubdulcis . II. Cytochemical characterization of interfaces. Fagus sylvatica Lactarius blennius var viridis and Lactarius subdulcis ectomycorrhizae were studied cytochemically PATAg test Gomori-Swift reaction WGA-colloidal gold labelling to characterize cell wall and matrix components. Different intensities of reaction were observed between walls of both Lactarius species and according to interfaces in the one mycorrhiza. The mantle-soil interface of L blennius mycorrhizae was characterized by mucilagenous material rich in chitin. L sub-dulcis mycorrhizae were infected by an ascomycete whose walls were bordered by an electron-dense layer. A decrease of chitin content was observed in the ascomycete walls between the hyphae present in the mantle and intracellularly. In both mycorrhizae the PATAg test revealed an accumulation of glycogen in rosettes along the plasmalemma of the Hartig net hyphae. ectomycorrhizae Lactarius Fagus sylvatica cytochemistry Resume - Des ectomycorhizes de Fagus sylvatica Lactarius blennius varviridis efLactarius subdulcis sont étudiées cytochimiquement test PATAg reaction de Gomori-Swift marquage par le complexe WGA-or colloidal pour caractériser les constituants pariétaux et les ciments. Differentes intensités de reaction sont observées entre les parols des deux lactaires et en fonction des interfaces d une même mycorhize. L interface manteau-sol de la mycorhize à L