ENTRAINMENT TO EXTERNAL CA-2+ OSCILLATION IN IONOPHORE-TREATED PHYSARUM PLASMODIUM

被引：10

作者：

MIYAKE, Y ^{[1
]}

YANO, M ^{[1
]}

TANAKA, H ^{[1
]}

SHIMIZU, H ^{[1
]}

机构：

[1] UNIV TOKYO, FAC PHARMACEUT SCI, BUNKYO KU, TOKYO 113, JAPAN

来源：

CELL STRUCTURE AND FUNCTION | 1992年 / 17卷 / 06期

关键词：

PHYSARUM; OSCILLATION; ENTRAINMENT; PHASE LOCKING; CALCIUM ION;

D O I：

10.1247/csf.17.371

中图分类号：

Q2 [细胞生物学];

学科分类号：

071009 ; 090102 ;

摘要：

To elucidate the mechanism of mutual interaction between intracellular chemical rhythms in the Physarum plasmodium, external Ca2+ oscillation was applied to the ionophore-treated plasmodial strand and its response was measured as tension oscillation. (i) Tension oscillation is entrained and phase locked to the externally applied Ca2+ oscillation. (ii) Two kinds of stable phase relationship, in-phasic and anti-phasic ones, are observed between them. (iii) Transition between the two stable phase relationships is also observed. These results suggest that intracellular rhythms which control tension generation are mutually entrained by means of cytosolic Ca2+ oscillation in the organism and that their interactions have two kinds of stable phase relationships.

引用

页码：371 / 375

页数：5

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