Doppler OCT imaging of cytoplasm shuttle flow in Physarum polycephalum

被引：20

作者：

Bykov, Alexander V. ^{[1
,2
,3
]}

Priezzhev, Alexander V. ^{[2
,3
]}

Lauri, Janne ^{[1
]}

Myllyla, Risto ^{[1
]}

机构：

[1] Univ Oulu, Optoelect & Measurement Tech Lab, Oulu 90014, Finland

[2] Moscow MV Lomonosov State Univ, Dept Phys, Moscow 119991, Russia

[3] Moscow MV Lomonosov State Univ, Ctr Int Laser, Moscow 119991, Russia

来源：

JOURNAL OF BIOPHOTONICS | 2009年 / 2卷 / 8-9期

基金：

芬兰科学院; 俄罗斯基础研究基金会;

关键词：

Doppler OCT; physarum; cytoplasm; shuttle flow; OPTICAL COHERENCE TOMOGRAPHY; SCATTERING PROPERTIES; HIGH-SPEED; IN-VIVO;

D O I：

10.1002/jbio.200910057

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

The Doppler optical coherence tomography technique was applied to image the oscillatory dynamics of protoplasm in the Strands of the plasmodium of slime mould Physarum polycephalum. Radial contractions of the gel-like walls of the strands and the velocity distributions in the sol-like endoplasm streaming along the plasmodial strands are imaged. The motility inhibitor effect of carbon dioxide on the cytoplasm shuttle flow and strand-wall contraction is shown. The optical attenuation coefficient of cytoplasm is estimated. [GRAPHICS] Time-resolved OCT pattern of Physarum strand-wall contractions. The thin yellow strip is the slime boundary between the air (above) and the strand (below). The lower boundary of the strand is not resolved due to strong scattering. (C) 2009 by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：540 / 547

页数：8

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