%0 Journal Article %A Kidby, D. K. %A Davies, R. %T Invertase and Disulphide Bridges in the Yeast Wall %D 1970 %J Microbiology, %V 61 %N 3 %P 327-333 %@ 1465-2080 %R https://doi.org/10.1099/00221287-61-3-327 %I Microbiology Society, %X Surmmary Invertase released from Saccharomyces fragilis (Jorgensen) by either breakage or thiol treatment exhibited identical electrophoretic characteristics. Evidence was obtained against an indirect chemical effect of breakage on the release of invertase from yeasts. Electron microscopy revealed no obvious differences between walls of S. fragilis and other yeasts. A model is proposed in which invertase is not bonded to the wall but is retained by structures requiring intact S—S linkings. %U https://www.microbiologyresearch.org/content/journal/micro/10.1099/00221287-61-3-327