Not-so-random walks: two tales of how and why bacteria get to where they do

Datum

15.01.2018

Zeit

11:00 - 12:00

Sprecher

Shashi Thutupalli

Zugehörigkeit

NCBS, Tata Institute for Fundamental Research, Bangalore, India

Sprache

en

Hauptthema

Biologie

Andere Themen

Biologie

Host

Marino Zerial

Beschreibung

The ability of individuals and their collectives to position themselves in space and time is a key driver of ecology. Here, I will present two experiments of the spatiotemporal redistribution of bacteria and its consequences on their multicellularity and population dynamics. First, I will describe how the soil bacteria Myxococcus Xanthus regulate their motility, in respose to starvation, and form multicellular aggregates via a non-equilibrium phase separation like process. Second, I describe a predator-prey (worm-bacteria) system in which immotile bacterial cells hitchhike on predatory worms and disperse to extremely long ranges. This dispersal has interesting consequences for the spread and growth of the bacteria (prey) and in turn the dynamics of the worm (predator) population.

Letztmalig verändert: 16.01.2018, 08:46:34