Spontaneous center formation in Dictyostelium discoideum
Spontaneous center formation in Dictyostelium discoideum
复制标题
盘基网柄菌的自发中心形成
DOI:
10.1038/s41598-019-40373-4
复制
发表时间:
2019
影响因子:
4.6
通讯作者:
A. Gholami
中科院分区:
文献类型:
--
作者:
E. Vidal;A. Gholami
Dictyostelium discoideum (D.d.)is a widely studied amoeba due to its capabilities of development, survival, and self-organization. During aggregation it produces and relays a chemical signal (cAMP) which shows spirals and target centers. Nevertheless, the natural emergence of these structures is still not well understood. We present a mechanism for creation of centers and target waves of cAMP inD.d. by adding cell inhomogeneity to a well known reaction-diffusion model of cAMP waves and we characterize its properties. We show how stable activity centers appear spontaneously in areas of higher cell density with the oscillation frequency of these centers depending on their density. The cAMP waves have the characteristic dispersion relation of trigger waves and a velocity which increases with cell density. Chemotactically competent cells react to these waves and create aggregation streams even with very simple movement rules. Finally we argue in favor of the existence of bounded phosphodiesterase to maintain the wave properties once small cell clusters appear.
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影响因子:
3.3
作者:
Xiao,Z;Devreotes,PN
通讯作者:
Devreotes,PN
影响因子:
2.7
作者:
Hall,AL;Franke,J;Faure,M;Kessin,RH
通讯作者:
Kessin,RH
影响因子:
--
作者:
Wessels,D;Murray,J;Soll,DR
通讯作者:
Soll,DR
DOI:
--
发表时间:
2008
期刊:
Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子:
--
作者:
Daniel Geberth;M. Hütt
通讯作者:
M. Hütt
DOI:
10.1103/physreve.91.062711
发表时间:
2015-06
期刊:
Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子:
--
作者:
Noorbakhsh J;Schwab DJ;Sgro AE;Gregor T;Mehta P
通讯作者:
Mehta P