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A 13C-NMR Study of Exudation and Storage of Carbohydrates and Amino Acids in the Ectomycorrhizal Edible mushroom Cantharellus cibarius

J. Ignacio Rangel-Castro, Eric Danell and Philip E. Pfeffer
Mycologia
Vol. 94, No. 2 (Mar. - Apr., 2002), pp. 190-199
DOI: 10.2307/3761795
Stable URL: http://www.jstor.org/stable/3761795
Page Count: 10
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
A 13C-NMR Study of Exudation and Storage of Carbohydrates and Amino Acids in the Ectomycorrhizal Edible mushroom Cantharellus cibarius
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Abstract

13C-NMR analyses of Cantharellus cibarius growth media were performed. We found exudation of trehalose and mannitol, which may explain the phenomenon of reproducing Pseudomonas bacteria observed inside fruit bodies. Exudation varied with strain and environment. NMR analyses of stored 13C was also performed. Trehalose, mannitol, and arginine were revealed. The mannitol pathway seems to play an important role for trehalose production in this species. This is the first study of the fate of the photosynthetically derived carbon in the highly appreciated edible ectomycorrhizal mushroom Cantharellus cibarius.

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