Essentials of bacteriology; being a concise and systematic introduction to the study of bacteria and allied microörganisms . / §- \ •I >. Fig. 36.—^Types of stroke cultures: i, Filiform (Bacillus coli); 2,echinulate (Bacteriiun acidi lactici); 3, beaded (Streptococcus pyogenes);4, effuse (Bacillus vulgaris); s, arborescent (Bacillus mycoides) (Frost). are further cultivated by inoculating fresh gelatin or agar,making stab- and stroke cultures. It is necessary to transfer the bacteria to fresh media aboutevery six weeks, as the products of growth and decay givenoff by the organisms destroy
Essentials of bacteriology; being a concise and systematic introduction to the study of bacteria and allied microörganisms . / §- \ •I >. Fig. 36.—^Types of stroke cultures: i, Filiform (Bacillus coli); 2,echinulate (Bacteriiun acidi lactici); 3, beaded (Streptococcus pyogenes);4, effuse (Bacillus vulgaris); s, arborescent (Bacillus mycoides) (Frost). are further cultivated by inoculating fresh gelatin or agar,making stab- and stroke cultures. It is necessary to transfer the bacteria to fresh media aboutevery six weeks, as the products of growth and decay givenoff by the organisms destroy them. Stroke and stab test-tube cultures are more characteristic than plate cultures, asthe types in Figs. 35 and 36 show. ANIMAL INOCULATION - QI CHAPTER XIV ANIMAL INOCULATION Used: (i) For obtaining pure cultures; (2) to determinevirulence; (3) to regain virulence of an organism that hasbecome exhausted in artificial media; (4) to furnish a suit-able culture-medium for bacteria that have so far failed togrow on other media. The smaller rodents and birds are the ones usually employedfor inoculation, as rabbits, guinea-pigs, rats, m
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherphila, bookyear1913
