Carbon-Nitrogen Cycling Through Microbial Formamide Metabolism

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Science  18 Jun 1976:
Vol. 192, Issue 4245, pp. 1234-1235
DOI: 10.1126/science.192.4245.1234


A microbially mediated carbon-nitrogen cycle involving a newly isolated facultatively methylotrophic pseudomonad is described. The new isolate utilizes formamide as its sole carbon, nitrogen, and energy source. Other organisms involved in the proposed cycle are cyanogenic plants; phytopathogenic fungi, which convert cyanogenic glycosides to formamide; and nitrifying microorganisms. This cycle may be quantitatively important in view of the large variety of cyanogenic plants known to exist.