Time Irreversibility and Criticality in the Motility of a Flagellate Microorganism.
Time Irreversibility and Criticality in the Motility of a Flagellate Microorganism.
复制标题
鞭毛微生物运动的时间不可逆性和临界性。
DOI:
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发表时间:
2017
影响因子:
8.6
通讯作者:
R. Goldstein
中科院分区:
文献类型:
--
作者:
Kirsty Y. Wan;R. Goldstein
Active living organisms exhibit behavioral variability, partitioning between fast and slow dynamics. Such variability may be key to generating rapid responses in a heterogeneous, unpredictable environment wherein cellular activity effects continual exchanges of energy fluxes. We demonstrate a novel, noninvasive strategy for revealing nonequilibrium control of swimming-specifically, in an octoflagellate microalga. These organisms exhibit surprising features of flagellar excitability and mechanosensitivity, which characterize a novel, time-irreversible "run-stop-shock" motility comprising forward runs, knee-jerk shocks with dramatic beat reversal, and long stops during which cells are quiescent yet continue to exhibit submicron flagellar vibrations. Entropy production, associated with flux cycles arising in a reaction graph representation of the gait-switching dynamics, provides a direct measure of detailed balance violation in this primitive alga.
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影响因子:
8.6
作者:
Klindt, Gary S.;Ruloff, Christian;Friedrich, Benjamin M.
通讯作者:
Friedrich, Benjamin M.
DOI:
10.1126/science.aac8167
发表时间:
2016-04-29
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Battle C;Broedersz CP;Fakhri N;Geyer VF;Howard J;Schmidt CF;MacKintosh FC
通讯作者:
MacKintosh FC
影响因子:
8.6
作者:
Lambert G;Liao D;Austin RH
通讯作者:
Austin RH
影响因子:
3.4
作者:
Xu, Gang;Wilson, Kate S.;Bayly, Philip V.
通讯作者:
Bayly, Philip V.