ISSN:
1550-7408
Quelle:
Blackwell Publishing Journal Backfiles 1879-2005
Thema:
Biologie
Notizen:
SYNOPSIS. Identical cultural forms of Trypanosoma granulosae occur in NNN agar, Diamonds SNB-9 agar and Proteosepeptone blood agar. The inclusion of penicillin G sulfate and streptomycin had no effect upon the cultures. The first cultural forms to appear (24 hours) were long, slender crithidia which divided to produce short slender crithidia. The latter were the only forms encountered until the 18th day when rosettes, composed of 3–10 short, slender crithidia were found. Following the production of metacyclic trypanosomes (24th day) the culture rapidly died. Transfer of metacyclic trypanosomes and rosettes did not extend the length of culture life. T. diemyctyli is also unaffected by antibiotics and shows similar growth in all media used. Division in this species begins 50–96 hours after inoculation with the production, from the blood stream form, of two unequal, plump crithidia. These divide twice to form slender crithidia; the latter rapidly divide, but do not separate, and yield rosettes with a maximum number of 60 individuals. As the slender crithidia leave the rosette each either remains in the same form or transforms to a plump, pear shaped individual. Secondary rosettes are then formed from the latter. Metacyclic trypanosomes appear, in small numbers, after the 14th day.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1111/j.1550-7408.1959.tb04381.x
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