UBC Theses and Dissertations

UBC Theses Logo

UBC Theses and Dissertations

Biosynthetic studies on the p-benzoquinones produced by Shanorella Spirotricha Benjamin Wat, Chi-Kit


From the culture medium of Shanorella spirotricha Benjamin, four p-benzoquinones have been isolated and identified. The major pigment is shanorellin (2,6-dimethyl-3-hydroxymethyl-5-hydroxy-1,4-benzoquinone). The other three pigments are the acetate, the ethyl ether and the dimer of shanorellin. Shanorellin was found to be synthesized via the acetate-polymalonate pathway by tracer experiments with ¹⁴C-labelled compounds and by chemical degradation of the labelled shanorellin produced. A study was made of the optimal conditions required for the production of these benzoqulnones. Significant factors were pH, temperature and sources of nitrogen and vitamins of the nutrient medium.

Item Media

Item Citations and Data


For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.