Abstract
A killer strain was discovered in cellular slime molds. The wild isolate CK-8 of Polysphondylium pallidum kills all other strains in Polysphondylium and Dictyostelium, as far as could be determined, except strain CK-8 itself and its complementary mating type strain CK-9. Growth-phase cells of CK-8 excrete a killer factor which is sensitive to heat, above 60°C for 5 min, and trypsin. The apparent molecular mass of the factor was determined at 10 000–12 000.
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Abbreviations
- BSS:
-
Bonner's salt solution
- CM:
-
conditioned medium
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Mizutani, A., Hagiwara, H. & Yanagisawa, K. A killer factor produced by the cellular slime mold Polysphondylium pallidum . Arch. Microbiol. 153, 413–416 (1990). https://doi.org/10.1007/BF00248419
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DOI: https://doi.org/10.1007/BF00248419