Pattern of somatic segregation of the cytoplasmic drug-resistance factors in yeast

1976 ◽  
Vol 145 (2) ◽  
pp. 159-163 ◽  
Author(s):  
Akira Uchida ◽  
Kohta Suda
Keyword(s):  
Drug Resistance ◽  
Resistance Factors ◽  
Somatic Segregation

Further observations on the genetic transfer of drug resistance in Eimeria maxima

Parasitology ◽  
1977 ◽  
Vol 74 (2) ◽  
pp. 205-213 ◽  
Author(s):  
L. P. Joyner ◽  
C. C. Norton
Keyword(s):  
Drug Resistance ◽  
Zygote Formation ◽  
Genetic Transfer ◽  
Resistance Factors ◽  
Eimeria Maxima

Experiments are described which support the view that, in Eimeria maxima, drug resistance factors are transferred at zygote formation. The phenomenon occurred between infections which were initiated by the inoculation of merozoites. It also took place between variants of the same, but not between different species. Transference of drug resistance wsa not affected by the treatment of the chicks with acriflavine.

Transferred drug-resistance in Eimeria maxima

Parasitology ◽  
1975 ◽  
Vol 71 (3) ◽  
pp. 385-392 ◽  
Author(s):  
L. P. Joyner ◽  
C. C. Norton
Keyword(s):  
Drug Resistance ◽  
The Other ◽  
Drug Resistant ◽  
Resistance Factors ◽  
Eimeria Maxima ◽  
Series Of Experiments ◽  
Resistant Strains ◽  
Drug Resistant Strains

A series of experiments is described in which two drug-resistant strains of Eimeria maxima were passaged together in untreated chicks. The resultant oocysts were then inoculated into chicks treated with both drugs. When strains resistant to methyl benzoquate and sulphaquinoxaline or clopidol and sulphaquinoxaline were used the resultant infections were not controlled by the double treatment, indicating the acquisition of resistance factors by one strain from the other. When strains resistant to clopidol and methyl benzoquate were used the phenomenon was not observed.

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