Abstract
A hybrid yeast strain (LAC/MAL), obtained by Johannsen and van der Walt (1978. Arch. Microbiol. 118:45–48) by growing together strains of Kluyveromyces marxianus (LAC/mal) and Kluyveromyces thermotolerans (lac/MAL), was studied. The nutritional profiles of the hybrid and of some segregants derived from the hybrid indicated that they were more similar to K. marxianus than to K. thermotolerans. This was confirmed by the electrophoretic analysis of isoenzymes, by DNA/DNA reassociation studies, and by restriction endonuclease mapping of ribosomal DNA cistrons. These analyses further indicated that the parent strain identified as K. thermotolerans was atypical of that species. The accumulated evidence ruled out the possibility that the hybrid strain was the result of Mendelian recombination but suggested that some form of transformation might have taken place.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
