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Isolation and Characterization of Chemotaxis Mutants of Chlamydomonas reinhardtii

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Abstract.

Zoospores of Chlamydomonas reinhardtii exhibit chemotaxis towards maltose, sucrose, xylose, mannitol, and ammonium. Ten independent mutants defective in chemotaxis towards sugars have been isolated. These mutants form five phenotypic classes. Genetic analysis of two mutant strains defective in chemotaxis to maltose (CHE1, CHE3) and two mutant strains defective in chemotaxis to sucrose (CHE2, CHE4) indicated that the defect in them depended on single nuclear recessive mutant alleles. Mutations mal1, mal2, suc1, and suc2 represent four chemotactic loci that are unlinked to the marker mt located on the linkage group VI. Four loci are unlinked to each other. These observations suggest that the mal and the suc loci do not constitute a spatially single functional group.

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Authors and Affiliations

  1. Laboratory of Microbiology, Biological Institute of St. Petersburg University, Oranienbaumskoye schosse 2, Stary Peterhof, St. Petersburg, 198904, Russia , , , , , , RU

    Elena V. Ermilova, Elena M. Chekunova, Zhanna M. Zalutskaya, Konstantin R. Krupnov & Boris V. Gromov

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  1. Elena V. Ermilova
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  2. Elena M. Chekunova
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  3. Zhanna M. Zalutskaya
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  4. Konstantin R. Krupnov
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  5. Boris V. Gromov
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Ermilova, E., Chekunova, E., Zalutskaya, Z. et al. Isolation and Characterization of Chemotaxis Mutants of Chlamydomonas reinhardtii . Curr Microbiol 32, 357–359 (1996). https://doi.org/10.1007/s002849900063

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  • DOI: https://doi.org/10.1007/s002849900063

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