State and spectral properties of chloride oscillations in pollen

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F03%3A00104353" target="_blank" >RIV/61389030:_____/03:00104353 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

State and spectral properties of chloride oscillations in pollen

Original language description

Pollen tube growth is a dynamic system expressing a number of oscillating circuits. Our recent work identified a new circuit, oscillatory efflux of Cl- anion from the pollen tube apex. Cl- efflux is the first ion signal found to be coupled in phase withgrowth oscillations. Functional analyses indicate an active role for Cl- flux in pollen tube growth. In this report the dynamical properties of Cl- efflux are examined. Phase space analysis demonstrates,that the system trajectory converges on a limit cycle. Fourier analysis reveals that two harmonic frequencies characterize normal growth. Cl- efflux is inhibited by the channel blocker DIDS, is stimulated by hypoosmotic treatment, and is antagonized by the signal encoded in inositol 3,4,5,6-tetrakisphosphate. These perturbations induce transitions of the limit cycle to new metastable states or cause system collapse to a static attractor centered near the origin. These perturbations also transform the spectral profile, inducing subharm...

Czech name

State and spectral properties of chloride oscillations in pollen

Czech description

State and spectral properties of chloride oscillations in pollen.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

ED - Physiology

OECD FORD branch

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Project

<a href="/en/project/LN00A081" target="_blank" >LN00A081: Signaling pathways in plants</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2003

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Biophysical Journal

ISSN

0006-3495

e-ISSN

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Volume of the periodical

84

Issue of the periodical within the volume

2

Country of publishing house

US - UNITED STATES

Number of pages

13

Pages from-to

1387-1398

UT code for WoS article

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EID of the result in the Scopus database

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