The pathway in which formaldehyde is used as a carbon source in the xylulose monophosphate cycle. Methylotrophic yeasts, but not bacteria, utilize the xylulose monophosphate cycle to fix formaldehyde and convert it into metabolically useful organic compounds.
Synonyms:
exact_synonym:
formaldehyde assimilation via xylulose-5-phosphate cycle; formaldehyde fixation cycle