منابع مشابه
Molecular Techniques for Sex Identification in Birds
In many bird species, males and females cannot be discriminated on the basis of external characteristics. The problems associated with reliable sex identification were overcome by introducing the molecular techniques in the 1990s. These techniques are generally based on DNA hybridization or polymerase chain reaction (PCR). This paper reviews the sexing techniques, highlighting their advantages ...
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Techniques for the rearing of Amblyomma species to be used in heartwater (Cowdria ruminantium) transmission experiments are discussed. These involve the breeding and maintenance of infected and non-infected strains of ticks. They include the feeding of ticks on sheep, rabbits, mice, tortoises and guinea fowl.
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A defined, minimal medium for the cellular slime mold Dictyostelium discoideum is reported.
متن کاملAxenic cultures of the coccolithophorid EtGliarziu
Experiments carried out with the coccolithophorid E~Gliania h~4xkqvi maintained in batch cultures showed that the patterns of photosynthetic carbon metabolism characteristic of this species are: ( I) carbon incorporation into proteins only represents about 20% of total carbon fixation into organic carbon, (2) protein a~.;:k?s in darkness is a significant and growth-dependent process, (3) most o...
متن کاملPhosphodiesterase Activities during Axenic Growth and Differentiation
During growth of myxamoebae of Dictyostelium discoideum (strain Ax-2) in axenic medium, the myxamoebae secrete cyclic AMP. As the cells leave the exponential phase of growth and enter the stationary phase, there is an approximate doubling of the intracellular cyclicAMP content, but the amount ofextracellular cyclicAMP remains proportional, at all times, to the number ofmyxamoebae present. Durin...
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ژورنال
عنوان ژورنال: Annales de Zootechnie
سال: 1975
ISSN: 0003-424X
DOI: 10.1051/animres:19750159