Flower-like patterns in multi-species biofilms
Flower-like patterns in multi-species biofilms
复制标题
多物种生物膜中的花状图案
DOI:
--
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
L. Tsimring
中科院分区:
文献类型:
--
作者:
Liyang Xiong;Yuansheng Cao;Robert M. Cooper;W. Rappel;J. Hasty;L. Tsimring
Diverse interactions among species within bacterial biofilms often lead to intricate spatiotemporal dynamics. The spatial structure of biofilms can determine growth and survival of different species, but the mechanisms driving formation of this structure are not fully understood. Here, we describe the emergence of complex structures in a biofilm grown from mixtures of motile and non-motile bacterial species on a soft agar surface. Time-lapse imaging shows that non-motile bacteria “hitchhike” on the motile bacteria as the latter migrate outward. The non-motile bacteria accumulate at the boundary of the colony and trigger an instability that leaves behind striking flower-like patterns. The mechanism of the front instability governing this pattern formation is elucidated by a mathematical model for the frictional motion of the colony interface, with friction depending on the local concentration of the nonmotile species along the interface. A more elaborate two-dimensional phase-field model that explicitly accounts for the interplay between growth, mechanical stress from the motile species, and friction provided by the non-motile species, fully reproduces the observed flower-like patterns.
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影响因子:
9.5
作者:
Kolewe KW;Peyton SR;Schiffman JD
通讯作者:
Schiffman JD
影响因子:
8.6
作者:
Camley BA;Zhao Y;Li B;Levine H;Rappel WJ
通讯作者:
Rappel WJ
影响因子:
64.5
作者:
Persat A;Nadell CD;Kim MK;Ingremeau F;Siryaporn A;Drescher K;Wingreen NS;Bassler BL;Gitai Z;Stone HA
通讯作者:
Stone HA
DOI:
10.1073/pnas.1000668107
发表时间:
2010-06-29
影响因子:
11.1
作者:
Grossart, Hans-Peter;Dziallas, Claudia;Tang, Kam W.
通讯作者:
Tang, Kam W.
影响因子:
2.8
作者:
Clemmer, Katy M.;Bonomo, Robert A.;Rather, Philip N.
通讯作者:
Rather, Philip N.