About: Far-red light inhibits germination through DELLA-dependent stimulation of ABA synthesis and ABI3 activity

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About: Far-red light inhibits germination through DELLA-dependent stimulation of ABA synthesis and ABI3 activity Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Under the canopy, far-red (FR) light represses seed germination by inactivating phytochrome photoreceptors. This elicits a decrease in gibberellins (GA) levels and an increase in abscisic acid (ABA) levels. GA promotes germination by enhancing the proteasome-mediated destruction of DELLA repressors. ABA prevents germination by stimulating the expression of ABI repressors. How phytochromes elicit changes in hormone levels or how GA- and ABA-dependent signals are coordinated to repress germination remains poorly understood. We show that repression of germination by FR light involves stabilized DELLA factors GAI, RGA and RGL2 that stimulate endogenous ABA synthesis. In turn, ABA blocks germination through the transcription factor ABI3. The role of PIL5, a basic helix-loop-helix transcription factor stimulating GAI and RGA expression, is significant, provided GA synthesis is high enough; otherwise, high GAI and RGA protein levels persist to block germination. Under white light, GAI and RGA driven by the R Under the canopy, far-red (FR) light represses seed germination by inactivating phytochrome photoreceptors. This elicits a decrease in gibberellins (GA) levels and an increase in abscisic acid (ABA) levels. GA promotes germination by enhancing the proteasome-mediated destruction of DELLA repressors. ABA prevents germination by stimulating the expression of ABI repressors. How phytochromes elicit changes in hormone levels or how GA- and ABA-dependent signals are coordinated to repress germination remains poorly understood. We show that repression of germination by FR light involves stabilized DELLA factors GAI, RGA and RGL2 that stimulate endogenous ABA synthesis. In turn, ABA blocks germination through the transcription factor ABI3. The role of PIL5, a basic helix-loop-helix transcription factor stimulating GAI and RGA expression, is significant, provided GA synthesis is high enough; otherwise, high GAI and RGA protein levels persist to block germination. Under white light, GAI and RGA driven by the R (en)
Title	Far-red light inhibits germination through DELLA-dependent stimulation of ABA synthesis and ABI3 activity Far-red light inhibits germination through DELLA-dependent stimulation of ABA synthesis and ABI3 activity (en)
skos:prefLabel	Far-red light inhibits germination through DELLA-dependent stimulation of ABA synthesis and ABI3 activity Far-red light inhibits germination through DELLA-dependent stimulation of ABA synthesis and ABI3 activity (en)
skos:notation	RIV/61989592:15310/09:00010629!RIV10-MSM-15310___
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(AV0Z50380511), Z(MSM6198959216)
http://linked.open...iv/cisloPeriodika	15
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Turečková, Veronika
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	Univerzita Palackého v Olomouci / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	314683
http://linked.open...ai/riv/idVysledku	RIV/61989592:15310/09:00010629
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	abscisic acid; DELLA; gibberellins; phytochrome; seed germination (en)
http://linked.open.../riv/klicoveSlovo	phytochrome gibberellins seed germination abscisic acid DELLA
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[07344471A0E5]
http://linked.open...i/riv/nazevZdroje	EMBO Journal
http://linked.open...in/vavai/riv/obor	EF
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...UplatneniVysledku	2009
http://linked.open...v/svazekPeriodika	28
http://linked.open...iv/tvurceVysledku	Turečková, Veronika Lopez-Molina, Luis Piskurewicz, Urszula Lacombe, Eric
http://linked.open...n/vavai/riv/zamer	Mechanismy regulace růstu a vývoje rostlin na úrovni buněk, orgánů a celých organismů: fyziologické, genetické a molekulárně biologické základy Modulation of signalling and regulatory pathways in normal and cancer cells
issn	0261-4189
number of pages	13 (xsd:int)
http://localhost/t...ganizacniJednotka	15310
is http://linked.open...avai/riv/vysledek of	Far-red light inhibits germination through DELLA-dependent stimulation of ABA synthesis and ABI3 activity Far-red light inhibits germination through DELLA-dependent stimulation of ABA synthesis and ABI3 activity Far-red light inhibits germination through DELLA-dependent stimulation of ABA synthesis and ABI3 activity Far-red light inhibits germination through DELLA-dependent stimulation of ABA synthesis and ABI3 activity

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