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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Induction of cellulose in Schizophyllum commune: thiocellobiose as a new inducer.

Several mono-, di, tetra-, and polysaccharides were screened for their ability to induced cellulase production by the tetrapolar hymenomycete Schizophyllum commune. Out of 21 carbohydrates screened, 4 (thiocellobiose, carboxymethylcellulose, cellobiose, and xylan) induced all three enzymes tested (carboxymethylcellulase, beta-glucosidase, and xylanase). The inducing effect increased with rising concentrations of the inducers up to a certain value, beyond which there was either a leveling off or a decrease of the enzymatic activities. The most powerful inducer, thiocellobiose, showed the highest activity at 0.5 mM. Cellobiose, carboxymethylcellulose, and xylan showed their highest activities at 1 mM and 1%, respectively. Surprisingly, sophorose did not enhance enzyme production. The enzymatic activities were monitored over a period of 24 h. Thiocelloboise elicited a response immediately after incubation, but with all other inducers there was a latency period before their effect could be measured. High-performance liquid chromatography showed no hydrolysis of thiocellobiose when incubated in the presence of S. commune extracellular enzymes.[1]

References

  1. Induction of cellulose in Schizophyllum commune: thiocellobiose as a new inducer. Rho, D., Desrochers, M., Jurasek, L., Driguez, H., Defaye, J. J. Bacteriol. (1982) [Pubmed]
 
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