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Bacterial Cooperative Organization Under Antibiotic Stress by Eshel Ben-Jacob; Inon Cohen; Ido Golding; David L. Gutnick; Marianna Tcherpakov; Dirk Helbing; Ilan G. Ron is a Physics and Astronomy article available to read on EtoBox.

What is Bacterial Cooperative Organization Under Antibiotic Stress about?

Bacteria have developed sophisticated modes of cooperative behavior to cope with unfavorable environmental conditions. Here we report the e ect of antibiotic stress on the colonial development of Paenibacillus dendritiformis and P. vortex. We focus on the e ect of co-trimoxazole on the colonial organization of P. dendritiformis. We ÿnd that the exposure to non-lethal concentrations of antibiotic leads to dramatic changes in the colonial growth patterns. Branching, tip-splitting patterns are a ected by reduction in the colonial fractal dimension from D f = 2:0 to 1:7, appearance of pronounced weak chirality and pronounced radial orientation of the growth. We combine the experimental observations with numerical studies of both discrete and continuous generic models to reveal the causes for the modiÿcations in the patterns. We conclude that the bacteria adjust their chemotactic signaling together with variations in the bacteria length and increase in the metabolic load.

Who reads Bacterial Cooperative Organization Under Antibiotic Stress?

Author

Eshel Ben-Jacob; Inon Cohen; Ido Golding; David L. Gutnick; Marianna Tcherpakov; Dirk Helbing; Ilan G. Ron

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0378-4371)

Published

2000

Language

EN

Field

Physics and Astronomy (Physical Sciences)