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Science 9 June 1978:
Vol. 200. no. 4346, pp. 1171 - 1173
DOI: 10.1126/science.349694
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Articles

Science, Vol 200, Issue 4346, 1171-1173
Copyright © 1978 by American Association for the Advancement of Science

articles

A mutant of yeast defective in cellular morphogenesis

BF Sloat and Pringle JR

In the budding yeast Saccharomyces cerevisiae, each bud appears within a ring of chitin formed in the cell wall of the mother cell. Temperature-sensitive mutants defective in gene cdc24 synthesize chitin at restrictive temperatures, but do not organize it into the discrete rings found in normal cells, nor do they form buds. The chitin ring or an annular precursor structure may play an essential role in reinforcing the region of the cell wall involved in budding.


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