Characterization of avian Mycoplasma

Yoder, Harry W.

doi:10.31274/rtd-180813-4067

Cited by 59 publications

(17 citation statements)

References 41 publications

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“…This study and other reports (8, 26) indicate that avian Mycoplasma serotype A ferments dextrose, mannose, levulose, and the seven other carbohydrates ( Table 1) which we regarded to have no differential value. Only one of the latter group, trehalose, was reported (26) not to be fermented by serotype A. Avian Mycoplasma serotypes B, E, H, and L did not ferment any of the carbohydrates tested (Table 2), which agrees with previous reports (8,26).…”

Section: Resultssupporting

confidence: 90%

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Identification of Mycoplasmatales: Characterization Procedures 1

Barber¹,

Fabricant²

1971

Applied Microbiology

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A large collection of avian Mycoplasma cultures was used in studies to improve and develop biological and biochemical characterization techniques. Differential patterns among 11 avian serotypes were shown by carbohydrate fermentation, tetrazoliumand methylene blue-reduction reactions, breakdown of arginine, and the formation of film on egg yolk-agar. Some cultures fermented as many as 14 carbohydrates. Polyhydric alcohols and pentoses were among the compounds fermented. An improved procedure for determining methylene blue reduction by Mycoplasma was developed. These simple, rapid procedures are reproducible and should be useful in grouping Mycoplasma isolates prior to definitive identification by serological or other means.

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Section: Resultssupporting

confidence: 90%

“…Hundreds of cultures were tested before any were found to ferment xylose or galactose. In fermentation studies by other workers (8,26), different procedures and several basal media were used. Both groups regarded a pH change to 6.5, determined either by color or a pH-meter, as a positive reaction.…”

Section: Resultsmentioning

confidence: 99%

Identification of Mycoplasmatales: Characterization Procedures 1

Barber¹,

Fabricant²

1971

Applied Microbiology

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“…This technique had been widely used in avian mycoplasma work, particularly in the measurement of antibody to M. gallisepticum (Fahey and Crawley, 1954). Crawley and Fahey (1957), and for the characterization of avian myco plasmas (Kleckner, 1960;Yoder and Hofstad, 1964;Dierks et_ al. 1967).…”

Section: Hemagglutination Inhibition and Hemadsorption Inhibitionmentioning

confidence: 99%

Serologic and immunologic studies on Mycoplasma hyopneumoniae pneumonia of swine

Lam

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“…Gaylord (1954) Lesions from experimentally infected pigs were aseptically removed, cut into small pieces, and stored in rubber-stoppered vials in a freezer cabinet at -30 C or in a dry ice and alcohol chest at -65 C, Routine bacteriological examination of the infective lung material was performed by inoculation of the following media: 1. horse-blood agar plates streaked with a micrococcal nurse colony, 2. mod ified MacConkey's agar (Ross, 1965), and 3. beef heart in fusion broth with hemoglobin, swine gastric mucin and turkey serum (Ross and Switzer, 1963). This strain of the virus pneumonia of pigs agent has consistently been shown to be free Avian Mycoplasma media Turkey meat infusion medium containing 5 per cent yeast autolysate, penicillin and thallium acetate was prepared following the procedure described by Yoder and Hofstad (1964 water bath for 30 minutes followed by 10 minutes immersion after the heat had been removed. The saline was replaced with…”

Section: Ultrastructure Of Psittacosis Agentsmentioning

confidence: 99%

Characterization of a causative agent of virus pneumonia of pigs (VPP)

Maré

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Signature was redacted for privacy.Signature was redacted for privacy.Signature was redacted for privacy. il TABLE OF CONTENTS Page SUMMARY 211 LITERATURE CITED 214 ACKNOWLEDGMENTS 228 susceptible pigs with material filtered through Gradocal mem branes of 0,8fj. APD, but not with 0,^6jx APD membrane fil trates, Macroscopic pneumonic lesions were present on the twelfth day postinoculation. Tney failed to propagate the infectious agent in the allantoic cavity or on the chorio allantoic membrane of embryonated hen's eggs, and they could not infect mice or ferrets with the agent. They recognized that their disease resembled the chronic pneumonia described by Fullar (1948, 1949a, 1949b) in Australia, and called tne disease by the name suggested by him, namely "Infectious Pneumonia of Pigs." The emphasis in this review will be on the attempts at propagation and characterization of the causative agent of virus pneumonia of pigs since excellent reviews by Betts (1953), Hjârre (1957), L'Ecuyer et al. (196I), L'Ecuyer (1962) and Young (1964a, 1964b) adequately cover the historical, geo graphic and economic aspects of the disease. L'Ecuyer (1962), in a very comprehensive review of the literature pertaining to pneumonia in swine, discussed the emergence of virus pneumonia of pigs as a recognizable entity, differing from swine influenza on clinical, pathological and etiological basis. He also presented a detailed discussion of the role of a number of bacterial species and Mycoplasma hyorhinls as primary or secondary pathogens in swine pneumonia.

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Characterization of avian Mycoplasma

Cited by 59 publications

References 41 publications

Identification of Mycoplasmatales: Characterization Procedures 1

Identification of Mycoplasmatales: Characterization Procedures 1

Serologic and immunologic studies on Mycoplasma hyopneumoniae pneumonia of swine

Characterization of a causative agent of virus pneumonia of pigs (VPP)

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