Tremella mesenterica

Fig. 11.—13C-N.m.r. Spectrum of Pullulan from Tremella mesenterica. (Solvent, D20 temperature, 32° chemical shifts expressed as 8C, relative to external tetramethyl-silane.)...

Fig. 1.—13C-N.m.r. Spectrum of Pullulan from Tremella mesenterica, atpD 7.0.

The acidic, exocellular polysaccharide from Tremella mesenterica, isolated by Cetavlon precipitation, has repeating structure 39 with D-... 

Sakagami, Y., Isogai, A., Suzuki, A., Tamura, S., Kitada, C., and Fujino, M. (1979). Structure of tremerogen-A-10, a peptidal hormone inducing conjugation tube formation in Tremella mesenterica. Agric Biol Chem 43 2643-2645. 

The first evidence for the existence of the methylation of a prenylated peptidyl substrate was found in two jelly fungi, Tremella mesenterica and Tremella brasiliensis [30,31]. These peptide sequences are similar to the a-mating factor found in Saccharomyces cerevisiae, which is also prenylated at the C-terminus and contains an a-carboxyl methyl ester [32]. The gene product of the STEM in S. cerevisiae was found to be responsible for the methylation event for the a-factor-mating pheromone and the enzymatic activity of this methyltransferase was found only in the cellular membrane fractions [33,34]. Further analyses of Stel4p via epitope tagging determined that the enzyme is localized to the ER membrane and possesses six transmembrane segments, with majority of the enzyme exposed to the cytosol [35,36]. 

Also spectra can be used as fingerprints as in the identification by Colson et al. 8) of pullulan from Tremella mesenterica. 

Figure 1. Schematic average repeat unit of exocellular polysaccharide from Tremella mesenterica NRRL Y-6158 GU, o-glucuronic acid M, o-mannose Xy,...

Mating pheromones of the yeasts Saccharomyces cerevisiae Rhodosporidium toruloides and Tremella mesenterica, respectively... 

S. De Baets, S. Du Laing, C. Fran9ois, and E.J. Vandamme, Optimization of exopolysaccharide production by Tremella mesenterica NRRL Y-6158 through implementation of fed-batch fermentation, J. Ind. Microbiol Biotech., 29,181-184, 2002. 

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