State and spectral properties of chloride oscillations in pollen

Kód výsledku v 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>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

State and spectral properties of chloride oscillations in pollen

Popis výsledku v původním jazyce

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...

Název v anglickém jazyce

State and spectral properties of chloride oscillations in pollen

Popis výsledku anglicky

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...

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

ED - Fyziologie

OECD FORD obor

—

Projekt

<a href="/cs/project/LN00A081" target="_blank" >LN00A081: Signální dráhy u rostlin</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2003

Kód důvěrnosti údajů

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

Název periodika

Biophysical Journal

ISSN

0006-3495

e-ISSN

—

Svazek periodika

84

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

13

Strana od-do

1387-1398

Kód UT WoS článku

—

EID výsledku v databázi Scopus

—