منابع مشابه
Phagocytosis of microbial L-forms.
Little data are available regarding L-form phagocyte interactions. Due to difficulty with more conventional methods, a serum-free technique of surface phagocytosis employing cellulose ester micropore filters, fluorochrome staining, and reflecting fluorescence microscopy was developed. Intracellular localization of L-frms was confirmed by electron microscopy. In timed experiments, phagocytosis o...
متن کاملCell-wall deficient L. monocytogenes L-forms feature abrogated pathogenicity
Stable L-forms are cell wall-deficient bacteria which are able to multiply and propagate indefinitely, despite the absence of a rigid peptidoglycan cell wall. We investigated whether L-forms of the intracellular pathogen L. monocytogenes possibly retain pathogenicity, and if they could trigger an innate immune response. While phagocytosis of L. monocytogenes L-forms by non-activated macrophages...
متن کاملStreptococcal L forms. II. Chemical composition.
Suspension of a streptococcal L form in hypotonic solutions is accompanied by loss of viability and structural disintegration (Panos and Barkulis, 1959). Consequently, a variable amount of water soluble material is lost in employing hypotonic solutions for washing procedures and results in only a residue portion remaining. Analyses of such residues in terms of the chemical constituents of the i...
متن کاملStreptococcal L Forms and Phage 1
This study showed that streptococcal L forms could not be isolated from children who were either carriers of group A streptococci or had disease due to this pathogen. It was possible to induce L colony formation in 15 strains of group A. Streptococcal bacteriophages were demonstrated in 20% of group A streptococci isolated from school children who were carriers, but did not have clinical eviden...
متن کاملMaass Forms and Their L-functions
We present examples of Maass forms on Hecke congruence groups, giving low eigenvalues on Γ0(p) for small prime p, and the first 1000 eigenvalues for Γ0(11). We also present calculations of the L-functions associated to the Maass forms and make comparisons to the predictions from random matrix theory.
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ژورنال
عنوان ژورنال: Nature
سال: 1958
ISSN: 0028-0836,1476-4687
DOI: 10.1038/1821619a0