About: State and spectral properties of chloride oscillations in pollen

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	State and spectral properties of chloride oscillations in pollen. (cs) 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 with growth 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... 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 with growth 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... (en)
Title	State and spectral properties of chloride oscillations in pollen State and spectral properties of chloride oscillations in pollen (en) State and spectral properties of chloride oscillations in pollen (cs)
skos:prefLabel	State and spectral properties of chloride oscillations in pollen State and spectral properties of chloride oscillations in pollen (en) State and spectral properties of chloride oscillations in pollen (cs)
skos:notation	RIV/61389030:_____/03:00104353!RIV/2005/AV0/A56005/N
http://linked.open.../vavai/riv/strany	1387;1398
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(LN00A081), Z(AV0Z5038910)
http://linked.open...iv/cisloPeriodika	2
http://linked.open...vai/riv/dodaniDat	2005
http://linked.open...aciTvurceVysledku	Zonia, Laura
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav experimentální botaniky AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	628708
http://linked.open...ai/riv/idVysledku	RIV/61389030:_____/03:00104353
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	CRASSULACEAN ACID METABOLISM; PLANT CIRCADIAN-RHYTHM; EPITHELIAL-CELL LINE (en)
http://linked.open.../riv/klicoveSlovo	CRASSULACEAN ACID METABOLISM EPITHELIAL-CELL LINE PLANT CIRCADIAN-RHYTHM
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[8AAC82B01680]
http://linked.open...i/riv/nazevZdroje	Biophysical Journal
http://linked.open...in/vavai/riv/obor	ED
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Signaling pathways in plants
http://linked.open...UplatneniVysledku	2003
http://linked.open...v/svazekPeriodika	84
http://linked.open...iv/tvurceVysledku	Zonia, Laura Feijo, J. A.
http://linked.open...n/vavai/riv/zamer	Physiological and genetical bases of plant development, cell cycle, morphogenesis, stress reactions and biotechnologies. Genome organisation and function
issn	0006-3495
number of pages	13 (xsd:int)

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