Results 171 to 180 of about 5,523 (213)
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MECHANISMS OF SPIROPLASMA PATHOGENICITY
Annual Review of Phytopathology, 1979Spiroplasmas are helical prokaryotes lacking a rigid cell wall; that is they are mycoplasmas. For plant pathologists the mycoplasma era began in 1966 when Doi and colleagues (28) found by electron microscopy that certain yellows diseased plants harbored in their phloem microorganisms indistinguishable from typical mycoplasmas associated with animals ...
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Israel journal of medical sciences, 1987
Extrachromosomal DNA, constituting plasmids or replicative forms of viruses, has been detected in a variety of spiroplasmas, particularly in Spiroplasma citri. Only a few of the S. citri plasmids were characterized by restriction enzyme mapping, and essentially nothing is known on functions encoded by the plasmids. Our studies revealed in S.
S, Razin, I, Nur, G, Glaser
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Extrachromosomal DNA, constituting plasmids or replicative forms of viruses, has been detected in a variety of spiroplasmas, particularly in Spiroplasma citri. Only a few of the S. citri plasmids were characterized by restriction enzyme mapping, and essentially nothing is known on functions encoded by the plasmids. Our studies revealed in S.
S, Razin, I, Nur, G, Glaser
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1987
Spleen cells from mice immunized with a mixture of S. citri (M200H) and three strains of corn stunt spiroplasma (F32, PU8–17, I747) were fused with NSI myelomas for the production of monoclonal antibody-secreting hybridomas. Hybridoma supernatants were initially screened against the mixture of spiroplasmas in heterologous double-antibody sandwich ...
R. Jordan +4 more
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Spleen cells from mice immunized with a mixture of S. citri (M200H) and three strains of corn stunt spiroplasma (F32, PU8–17, I747) were fused with NSI myelomas for the production of monoclonal antibody-secreting hybridomas. Hybridoma supernatants were initially screened against the mixture of spiroplasmas in heterologous double-antibody sandwich ...
R. Jordan +4 more
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Spiroplasmas in the Tabanidae.
Israel journal of medical sciences, 1985Spiroplasmas were observed in seven species of the family Tabanidae (horse flies and deer flies). This is the fifth family of the order Diptera now known to harbor spiroplasmas. Noncultivable spiroplasmas were seen in the hemolymph of three species of the genus Tabanus, and cultivable forms were isolated from the guts of six species in three genera ...
T B, Clark +5 more
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Lipid utilization of two flower spiroplasmas and honeybee spiroplasma
Canadian Journal of Microbiology, 1985A chemically defined medium (CC-494) was used to study the lipid utilization of two flower spiroplasmas (Spiroplasma florkola and SR-3) and honeybee spiroplasma (AS-576). All three spiroplasmas reached comparable growth yields when lauric acid, myristic acid, or stearic acid replaced palmitic acid; palmitoleic acid, linoleic acid, or linolenic acid ...
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Pathogenicity of Spiroplasma apis and other spiroplasmas for honey-bees in Southwestern France
Annales de l'Institut Pasteur / Microbiologie, 1984The haemolymph of honey-bees affected by a May disease-like disorder in southwestern France contained numerous spiroplasmas. Further characterization of the organisms and pathogenicity assays showed that the causal agent of the disease was a spiroplasma belonging to group IV. The name Spiroplasma apis was given to the reference strain B31 (ATCC 33834),
Mouchès, Chloé +2 more
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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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Spiroplasmas: evolution, adaptation and diversity
Frontiers in Bioscience, 2002Since its designation as a separate genus some 30 years ago, Spiroplasmas have been well documented in a wide range of hosts and as the causative agent of several plant and insect diseases. One major area of research is the continued identification and taxonomical characterization of new Spiroplasma sp.
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Annual Review of Entomology, 1981
Since their discovery as members of a new microbial taxon in 1972 (40), spiroplasmas (5, 7, 33, 36, 39, 145, 149) have been investigated intensively as microbes. They are, after all, unique among wall-less microorganisms in their capacity to maintain helical shape and to exhibit several types of motility (including translational movement) in viscous ...
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Since their discovery as members of a new microbial taxon in 1972 (40), spiroplasmas (5, 7, 33, 36, 39, 145, 149) have been investigated intensively as microbes. They are, after all, unique among wall-less microorganisms in their capacity to maintain helical shape and to exhibit several types of motility (including translational movement) in viscous ...
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Spiroplasma kunkelii (corn stunt spiroplasma)
PlantwisePlus Knowledge Bank, 2022openaire +1 more source