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Science 8 February 1974:
Vol. 183. no. 4124, pp. 531 - 532
DOI: 10.1126/science.183.4124.531
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Articles

Nutritional Significance of Symbiotic Bacteria in Two Species of Hemoflagellates

Kwang-Poo Chang 1 and William Trager 1

1 Department of Parasitology, Rockefeller University, New York 10021

Symbiote-free strains of Blastocrithidia culicis and Crithidia oncopelti, obtained by chloramphenicol treatment, were compared nutritionally with normal, symbiote-containing strains. The symbiotic bacteria spare the flagellates requirements for exogenous hemin and for other nutritional factors present in liver extract.


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