On the biosynthesis of lichen substances. 3. Lichen acids as products of a symbiosis.
D000143:Acids / Q000096:biosynthesis*; D002245:Carbon Dioxide / Q000378:metabolism; D002247:Carbon Isotopes; D008011:Lichens / Q000378:metabolism*; D008027:Light; D010636:Phenols / Q000096:biosynthesis; D013559:Symbiosis
D000143:Acids; D002247:Carbon Isotopes; D010636:Phenols; D002245:Carbon Dioxide