Negative chemotaxis in Dictyostelium and Polysphondylium

Peter I.J. Kakebeeke, RenéJ J.W. De Wit, Stave D. Kohtz, Theo M. Konijn

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

A method has been described to measure negative chemotaxis in the cellular slime molds directly and to purify the repellents. Conclusive evidence is given that negative chemotaxis exists in the cellular slime molds and that it occurs generally in Dictyostelium and Polysphondylium. Amoebae respond shortly after their exposure to repellents, which are secreted by vegetative and not by preaggregative cells. The amoebae are sensitive to repellents in both development stages and contain enzyme(s) to inactivate them. Cross reactions of different species indicate that there is more than one repellent, although it cannot be excluded that the variability in response depends on the balancing effect of attractants and repellents.

Original languageEnglish
Pages (from-to)429-433
Number of pages5
JournalExperimental Cell Research
Volume124
Issue number2
DOIs
StatePublished - Dec 1979
Externally publishedYes

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