. A manual of bacteriology. Bacteriology. 222 MANUAL OF BACTERIOLOGY. called. This zymotoxic group, however, is not an integral part of the receptor, but is easily broken off from it, in the manner described below. As is explained later, the power of the lysins becomes sus- pended, but not lost, on being heated to 55° or 56° C. In this condition they are said to be inactivated. They become active again when certain fresh serum is added—not necessarily fresh. Fig 52.—Receptor of the third order, and of some substance uniting with one of them.—{Journal of the American Medical Association. 1905.
. A manual of bacteriology. Bacteriology. 222 MANUAL OF BACTERIOLOGY. called. This zymotoxic group, however, is not an integral part of the receptor, but is easily broken off from it, in the manner described below. As is explained later, the power of the lysins becomes sus- pended, but not lost, on being heated to 55° or 56° C. In this condition they are said to be inactivated. They become active again when certain fresh serum is added—not necessarily fresh. Fig 52.—Receptor of the third order, and of some substance uniting with one of them.—{Journal of the American Medical Association. 1905. P. 1369.) c. Cell receptor of the third order—an amboceptor, e. One of the hapto- phores of the amboceptor, with which some food substance or product of bac- terial disintegration (/) may unite, g. The other haptophore of the ambo- ceptor with which complement may unite, k. Complement, h. The hapto- phore. z. The zymotoxic group of complements. lysin, but fresh normal serum. This will all be discussed and explained later. For the present purpose it is sufficient to bear in mind that lysin becomes inactivated and may be reactivated. So the lysins act differently from agglutinins and precipitins. They must have peculiar receptors which unite, on the other hand, with the cells which they disintegrate and, on the other, with a ferment-producing substance easily de- stroyed by heat. These receptors must possess two haptophore. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Williams, Herbert Upham, 1866-; Bolton, Benjamin Meade, 1857-1929. Philadelphia, P. Blakiston's Son & Co.
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