Results 171 to 180 of about 2,593 (211)
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Spiroplasmas and Acholeplasmas: Multiplication in Insects
Science, 1973The helical wall-free microorganism, Spiroplasma citri , which is associated with citrus stubborn, a disease with no known vector, multiplied in the leafhopper vector of corn stunt but multiplied to higher titer in the vector of aster yellows and decreased the longevity of that insect.
R F, Whitcomb +3 more
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THE LYTIC EFFECT OF LYSOLECITHIN ON ACHOLEPLASMAS AND MYCOPLASMAS
Acta Pathologica Microbiologica Scandinavica Section B Microbiology, 1977Lysolecithin exhibits a lytic activity on acholeplasmas and mycoplasmas. The acholeplasmas studied, viz. Acholeplasma laidlawii A and B, were found less susceptible than were the mycoplasmas, viz. Mycoplasma gallisepticum and M. pneumoniae. The sensitivitxy to lysis was found to differ according to species, growth temperature and number of organisms ...
L V, Soltesz, P A, Mårdh
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Autoxidation ofAcholeplasma laidlawii membranes
Lipids, 1984AbstractAutoxidation ofAcholeplasma laidlawii membranes (with equimolar ratio of palmitic and linoleic acid) lacks an obvious induction period, and the overall rate of disappearance of substrate does not follow closely that of typical autocatalytic kinetics.
G S, Wu +3 more
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Adaptation of Mycoplasmas to Antimicrobial Peptides: Development of Melittin Resistance in Acholeplasma laidlawii Is Associated with Changes in Genomic and Proteomic Profiles and in Virulence [PDF]
Doklady Biochemistry and Biophysics, 2020 © 2020, Pleiades Publishing, Ltd. Abstract: For the first time it is shown that the development of resistance to melittin in Acholeplasma laidlawii, a mycoplasma that is widely spread in nature and that is the main contaminant of cell cultures and ...
A A Mouzykantov +2 more
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Infection of Acholeplasma laidlawii by MVL51 virus
Virology, 1973The infection of Acholeplasma laidlawii cells by MVL51 virus has been studied, MVL51 is a bullet-shaped virus, about 14 nm wide and 71 nm long. At multiplicities of infection less than 10, virus infected cells continue to grow during virus production, but the cell doubling time is 160 min, rather than the normal 110 min.
A, Liss, J, Maniloff
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Evidence for the bacterial origin of Acholeplasma laidlawii A
Diagnostic Microbiology and Infectious Disease, 1985L-forms from a Corynebacterium were induced in hyperosmolar media and gradually adapted to normal osmolarity over a period of two years. During this adaptation several morphologic L-form variants derived from the L-form cultures and were serologically identified as Acholeplasma laidlawii A.
W N, Pachas, M, Schor, G S, Aulakh
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The differential effect of lysolecithin on mycoplasmas and acholeplasmas
Medical Microbiology and Immunology, 1973The cidal effect of lysolecithin on mycoplasmas and acholeplasmas was studied. Thirty-one mycoplasma strains and species were tested. The growth of all of them was inhibited by 250 μg/ml of lysolecithin and the growth of most by 125 μg/ml. T-mycoplasmas were as sensitive to lysolecithin as the other mycoplasmas tested.
P A, Mårdh, D, Taylor-Robinson
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The molecular structure of the membrane of Acholeplasma laidlawii
Chemistry and Physics of Lipids, 1972Abstract The following discussion is a survey of experiments with the membrane of Acholeplasma laidlawii (formerly Mycoplasma laidlawii)3–5). This organism is particularly suitable for membrane structural studies, since it has only a single membrane which is easily isolated by osmotic lysis and since it lacks the specialized wall structures of the ...
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Radiobiological properties of Acholeplasma laidlawii B
Canadian Journal of Microbiology, 1974Survival data were obtained on Acholeplasma laidlawii B after exposure to ionizing radiation at various ages, pH, temperature, and supplements to the medium. The D0 value varied slightly with pH in air but much more after irradiations in N2 or N2O. Replacement of the growth medium with fresh broth resulted in an increase in D0 while dilution of the ...
W S, Chelack, M P, Forsyth, A, Petkau
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Characterization of some new insect-derived acholeplasmas.
Israel journal of medical sciences, 1987Further analysis of three sterol-nonrequiring Mollicutes (strains PS-1, TAC, and YJS) isolated from gut fluids of insects confirms their similarity to Acholeplasma. They are serologically distinct from acholeplasmas of vertebrates and several other sterol nonrequiring Mollicutes isolated from plant surfaces.
Tully, J.G. +8 more
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