The Significance of Certain Reactions Induced by "Resting Bacteria": Studies In Bacterial Metabolism, LXXXVII

The Fusobacterium Genus

“…The amount of titratable acidity produced by group II in 1.0 per cent carbohydrate media was found to be approximately twice that of group I, suggesting that group II is able to utilize an intermediate product of carbohydrate metabolism not attacked by group I. Using the Thunberg technique, as modified by Kendall and Ishikawa (1929), the ability of the two groups to activate pyruvic, acetic and succinic acids was determined. Unfortunately, none of these substances proved of differential value, since pyruvic acid was activated by both groups, and acetic and succinic acids by neither group.…”

Studies on the Respiratory Mechanism of the Streptococci

“…Thunberg (1917) developed a technique for studying dehy-drases in muscle. This technique was applied to bacterial cells in an extensive series of researches by Quastel (1925) and his colleagues, and later by Kendall (1929). No studies on streptococci are known to the writer.…”

Respiratory Enzyme Systems in Symbiotic Nitrogen Fixation I

“…Werkman and his collaborators Wood, Stone and Werkman, 1937) used non-proliferating cells for studies of intermediates in bacterial fermentations. Others employed such suspensions for investigations of the dehydrogenases of bacteria using the methylene-blue technique (Kendall and Ishikawa, 1929). However, detailed unvestigations of specific enzyme systems, through use of the micro-respirometer together with the methylene-blue technique and isolation of chemical compounds have been quite neglected.…”