Distribution of cell wall-linked polyamines within the Gram-negative anaerobes of the subbranch Sporomusa belonging phylogenetically to Gram-positivetaxa

Cellular polyamines covalently linked in the anaerobes belonging to the Spo romusa subbranch of Gram-positive taxa were analysed by high performance li quid chromatography after acid extraction and acid hydrolysis of the cells. Putrescine and/or cadaverine were widely distributed, as the covalently li nked amines in their cell walls, within the major members of the subbranch with Gram-negative cell walls, viz the genera Acetonema, Sporomusa, Megasph aera, Selenomonas, Veillonella, Pectinatus, Dialister, Acidaminococcus, Zym ophilus, Anaerovibrio and Propionispira. A part of cellular spermidine in a ddition to the diamines was covalently linked in Selenomonas dianae, Seleno monas infelix, Acidaminococcus fermentans and Propionispira arboris.