Studies of sector formation in expanding bacterial colonies

I. Golding, I. Cohen, E. Ben-Jacob

Research output: Contribution to journalArticlepeer-review


We study sector formation in expanding bacterial colonies grown on a substrate with low level of nutrient. Bursts of sectors are observed both during compact growth on soft agar and during branching growth on semi-solid agar. For theoretical studies of these bursts we employ two mathematical models we have used successfully in the past to study patterning of bacterial colonies: a discrete model and a continuous reaction-diffusion model. Using these models we investigate the amount of segregation achieved by a neutral mutation, as well as by mutations having some advantage over the wild type. We also study the effect of chemotaxis signaling on the sector formation.

Original languageEnglish (US)
Pages (from-to)587-593
Number of pages7
JournalEurophysics Letters
Issue number5
StatePublished - Dec 1 1999
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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