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TZID:Europe/Vienna
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DTSTART:20160327T030000
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DTSTART:20151025T020000
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BEGIN:VEVENT
DTSTAMP:20260430T094238Z
UID:5548861af1876879038065@ist.ac.at
DTSTART:20151102T124500
DTEND:20151102T140000
DESCRIPTION:Speaker: Harry Swinney\nAbstract: We find that Bacillus subtili
 s bacteria in a growing colony exhibit large (non-thermal) number fluctuat
 ions. Also\, these swimming bacteria are observed to form dynamic clusters
  where the orientational correlations of bacteria within a cluster are sca
 le invariant. Studies of another rod-shaped swimming bacterium found commo
 nly in soil\, Paenibacillus dendritiformis\, reveal that neighboring colon
 ies secrete a previously unknown toxic protein\, Slf\, which is not secret
 ed by the bacteria in isolated colonies. Some bacteria within a colony sur
 vive by switching their shape from a rod to an immobile Slf-resistant sphe
 rical shape. If these spherical bacteria later encounter sustained favorab
 le conditions\, they secrete a signaling molecule that induces a switch ba
 ck to the rod-shaped form. The genes that encode the switching pathway are
  widespread among bacterial species\, suggesting that this survival mechan
 ism is not unique to P. dentritiformis.
LOCATION:Raiffeisen Lecture Hall\, Central Building\, ISTA
ORGANIZER:aeller@ist.ac.at
SUMMARY:Harry Swinney: The Institute Colloquium: Collective dynamics\, dead
 ly competition\, and phenotype swit
URL:https://talks-calendar.ista.ac.at/events/552
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