TY - JOUR
T1 - Aggregation patterns in stressed bacteria
AU - Tsimring, Lev
AU - Levine, Herbert
AU - Aranson, Igor
AU - Ben-Jacob, Eshel
AU - Cohen, Inon
AU - Shochet, Ofer
AU - Reynolds, William N.
PY - 1995
Y1 - 1995
N2 - We study the formation of spot patterns seen in bacterial colonies when the bacteria are subjected to oxidative stress due to hazardous by-products of respiration. The cell density is coupled to a chemoattractant concentration as well as to nutrient and waste fields. The model combines the propagation of a front of motile bacterial radially outward from an initial site, a Turing instability of the uniformly dense state, and a reduction of motility for cells sufficiently far behind the front. The wide variety of patterns seen in the experiments is reproduced by the model by varying the details of the initiation of the chemoattractant emission as well as the transition to a nonmotile phase.
AB - We study the formation of spot patterns seen in bacterial colonies when the bacteria are subjected to oxidative stress due to hazardous by-products of respiration. The cell density is coupled to a chemoattractant concentration as well as to nutrient and waste fields. The model combines the propagation of a front of motile bacterial radially outward from an initial site, a Turing instability of the uniformly dense state, and a reduction of motility for cells sufficiently far behind the front. The wide variety of patterns seen in the experiments is reproduced by the model by varying the details of the initiation of the chemoattractant emission as well as the transition to a nonmotile phase.
UR - http://www.scopus.com/inward/record.url?scp=0001566403&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0001566403&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.75.1859
DO - 10.1103/PhysRevLett.75.1859
M3 - Article
AN - SCOPUS:0001566403
SN - 0031-9007
VL - 75
SP - 1859
EP - 1862
JO - Physical review letters
JF - Physical review letters
IS - 9
ER -