Transactions - Chicago Pathological Society (Volume 11, No. 7) (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1922. Excerpt: ... E En S5 C a o 55 O w z; a - c a is S + 3 + in + g + + + + + fc + E- +, &g + + 0+0 + hlQ + S.2+ + a + + +.-Ps ++:: a ++ +-' s + a + + (c).SO w C-c 'e cosor c P. - as 3 rt O.C c - - &1 ++= = == ri-ll +: -: =: o;o;o oo oooo ooo: o 5J5. (c)-+(c)(c)(c)(c)(c)T g--i M & (c)(c)--(c)(c)(c)-(c) 4-a-i ' (c) (c) +: (c)(c)(c)(c)(c) 00(c)(c)000 + -; (c)-(c);(c)-(c);(c): (c): Sipg-i a a '+++-oSs; S o S 6 ft0--Ma aaaaaa'asa not readily broken up themselves to yield straight chain carbon for nutrition. This does not mean that in the presence of other carbon nutriment these amino-acids may not be very useful in small quantity per se. Their presence would save a certain amount of synthesis in the construction of bacterial protein, but it should be added that each of these organisms is quite able to synthesize its own ring compounds from very simple straight chain material. The situation with histidine is worth comment. Histidine suffices as sole source of nitrogen and carbon for the smegma bacilli and grass bacilli with one exception. In this case, in contrast to what we have seen before, the leprosy bacilli and bacilli of cold blooded animals behave more like tubercle bacilli than like the unquestioned saprophytes. Table 3 shows another study in carbon metabolism. You will recall that ammonia was a suitable source of nitrogen for all of the group. Glycerol is likewise for all a sufficient source of carbon. It is, of the substances studied, the only suitable sole source of carbon for tubercle bacilli. The chief point, in addition to this, brought out by this