Folate Coenzymes of Lactobacillus casei and Streptococcus faecalis

Folate Coenzymes of Lactobadhs casei and Streptococcus faecalis*

During growth in the presence of 10 ng of [3H]pteroylglutamic acid (PteGlu) per ml of medium, Zactobacillus casei (ATCC ‘7469) incorporated 80 to 90 % and Strepfococcus faecolis (ATCC 8043) 40 to 60% of the added radioactivity. Folate compounds in Z. cusei were identified as reduced derivatives of PteGlus (w-19%), of PteGlus (-42 %), of PteGlu, (~14%)~ and PteGluc (-8%); in S. faecalis as reduc...

The partial chemical degradation of the cell walls of Lactobacillus plantarum, Streptococcus faecalis, and Lactobacillus casei.

The cell wall of a bacterium is generally understood, at the cytological level, to be a rigid outer layer which gives the organism its characteristic size and shape and does not include the extracellular slime or capsule so often encountered among bacterial species. The “microcapsule,” a term of convenience for immunologically but not morphologically demonstrable properties of the bacterial sur...

The activity of Lactobacillus casei factor, folic acid, and vitamin Bc for Streptococcus faecalis and Lactobacillus casei.

It has been established that the terms vitamin M, vitamin B,, norit eluate factor, Lactobacillus casei factor, factor U, folic acid, and factor SLR all refer to a group of compounds (or a compound) with similar characteristics and similar biological activities. Of these factors seven have been reported in purified form: folic acid (isolated from spinach) (l), three L. casei factors (one from li...

The Partial Chemical Degradation of the Cell Walls Lactobacillus plantarum, Streptococcus faecalis, and Lactobacillus casei*

The cell wall of a bacterium is generally understood, at the cytological level, to be a rigid outer layer which gives the organism its characteristic size and shape and does not include the extracellular slime or capsule so often encountered among bacterial species. The “microcapsule,” a term of convenience for immunologically but not morphologically demonstrable properties of the bacterial sur...

Lactobacillus casei C.S.F. folate activity.