Abstract
Recently we found 3 inagglutinable strains amongst 19 strains of the glanders bacilli; they are inagglutinable against the anti- No. 7 -strain (of B. mallei)-serum, while they agglutinate in other 18 anti-serums. Such inagglutinability as above mentioned is quitely different in its nature from the ordinarily described inagglutinability. These inagglutinable strains absorb off agglutinins from the anti-No. 7-strain-serum as they do in other 18 antiserums, and anti-inagglutinable-strain-serum agglutinates all 19 strains. Therefore, our 3 inagglutinable strains are agglutinable as other 16 agglutinable strains when they met with serums other than anti-No. 7 strain-serum while they are inagglutinable against anti-No. 7-serum. I intend to explain these phenomena as follows:
In bacterial cell there are receptors which combine the agglutinin to the cell; each of these receptors has corresponding agglutinable substance, and the agglutinin which united with corresponding receptor acts only on the agglutinable substance which belongs to this receptor, thus the agglutination occurs. But, if the agglutinable substance belongs to the receptor which anchored with the agglutinin, or there is some change which is not suitable to agglutinate, or there is something which let the agglutinable substance inagglutinable, or agglutinable substance is deficient, no agglutination occurs.
