Reference: Urano N, et al. (2000) Increase of hybrids in yeast electrofusion by mitochondrial mutations. Biotechnol Bioeng 69(1):113-6

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Abstract


Yeast mitochondria were found to affect the zeta-potential of protoplasts, resulting in electrofusion of membrane behavior. For modeling purposes, two fusion systems were investigated: (1) parent yeasts of Saccharomyces cerevisiae G706 (rho(+)) x O708-11-16A (rho(+)), with zeta-potentials of -10 to -27 mV and -28 to -45 mV, depending on MgCl(2) concentration in the medium, respectively; and (2) parent yeasts of S. cerevisiae G706-1 (rho(-)) x O708-11-16A (rho(+)), with zeta-potentials of -30 to -60 mV, depending on MgCl(2). Yields of the hybrids in system (2) were over 100-fold higher than those in system (1). Thus, regulation of yeast electrofusion was found to be possible by mitochondrial mutations.

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Journal Article
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Urano N, Ueno R, Kimura S
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