Interactive optical trapping shows that confinement is a determinant of growth in a mixed yeast culture

Publication: Research - peer-reviewJournal article – Annual report year: 2005

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Applying a newly developed user-interactive optical trapping system, we controllably surrounded individual cells of one yeast species, Hanseniaspora uvarum, with viable cells of another yeast species, Saccharomyces cerevisiae, thus creating a confinement of the former. Growth of surrounded and non-surrounded H. uvarum cells was followed under a microscope by determining their generation time. The average generation time of surrounded H. uvarum cells was 15% higher than that of non-surrounded cells thereby showing that the confinement imposed by viable S. cerevisiae cells on H. uvarum inhibits growth of the latter. This study is the first to demonstrate that confinement is a determinant of growth in a microbial ecosystem. (c) 2005 Federation of European Microbiological Societies. Published by Elsevier B.V. All rights reserved.
Original languageEnglish
JournalF E M S Microbiology Letters
Volume245
Issue number1
Pages (from-to)155-159
ISSN0378-1097
DOIs
StatePublished - 2005
Peer-reviewedYes
CitationsWeb of Science® Times Cited: 40

Keywords

  • interactive optical trapping, confinement, growth inhibition, yeast
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