Statistical Mechanics of Biological Cooperativity

Session

Saturday morning

Saturday morning

25 May 2013, 09:00

Ferry Stockholm-Mariehamn and Hotel Arkipelag, Mariehamn, Åland

259. Dislocation Mediated Elongation of Bacteria

Prof. David R. Nelson (Harvard University and Niels Bohr Institute)

25/05/2013, 09:00

Recent experiments have revealed a remarkable growth mechanism for rod-shaped bacteria: specialized proteins associated with cell wall elongation move at constant velocity in clockwise and counterclockwise directions on circles around the cell circumference. We argue that this machinery attaches to dislocations in the ordered peptidoglycan cell wall, and study theoretically...

267. Diffusion of public goods in bacterial colonies, and its impact on cooperation

Prof. Thierry Mora (ENS)

25/05/2013, 09:45

The maintenance of cooperation in populations where public goods are equally accessible to all, but inflict a fitness cost on its sole producers, is a long-standing puzzle of evolutionary biology. An example of such a scenario is the secretion of siderophores by bacteria into their environment in order to fetch soluble iron. In a well-mixed culture, these molecules diffuse rapidly, such...

268. Quantifying contributions of mutations and homologous recombination to E. coli genomic diversity

Prof. Sergei Maslov (Brookhaven National Laboratory)

25/05/2013, 10:45

Understanding evolutionary dynamics of bacterial genomes is of great importance in microbiology, microbial ecology, and epidemiology. Collective effects play an important role in shaping this dynamics due to ubiquitous horizontal gene transfer between different members of bacterial population. We recently interpreted the variability of 37 fully sequenced genomes of E. coli and Shigella...

269. Pareto optimality in evolution and the geometry of phenotype space

Prof. Alon Uri (Weizmann Institute of Science)

25/05/2013, 11:30

NO ABSTRACT