A quick hyl1 - dependent reactivation of microrna production is required for a proper developmental response after extended periods of light deprivation

A quick hyl1 - dependent reactivation of microrna production is required for a proper developmental response after extended periods of light deprivation

Light is the most influential environmental stimulus for plant growth. In response to deficient light, plants reprogram their development to adjust their growth in search for a light source. A fine reprogramming of gene expression orchestrates this adaptive trait. Here we show that plants alter microRNA (miRNA) biogenesis in response to light transition. When plants suffer an unusual extended period of light deprivation, the miRNA biogenesis factor HYPONASTIC LEAVES 1 (HYL1) is degraded but an inactive pool of phosphorylated protein remains stable inside the nucleus. Degradation of HYL1 leads to the release of gene silencing, triggering a proper response to dark and shade. Upon light restoration, a quick dephosphorylation of HYL1 leads to the reactivation of miRNA biogenesis and a switch toward a developmental program that maximizes the light uptake. Our findings define a unique and fast regulatory mechanism controlling the plant silencing machinery during plant light response.

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Main Authors: Achkar, Natalia P., Cho, Seok Keun, Poulsen, Christian, Arce, Agustin L., Re, Delfina A., Giudicatti, Axel J., Karayekov, Elizabeth, Casal, Jorge José
Format: Texto biblioteca
Language:spa
Subjects:ARABIDOPSIS, GENE, GENE SILENCING, HYL1, LIGHT RESPONSE, MICRORNAS, PHOSPHORYLATION, SHADE, PHOSPHOPROTEIN, TRANSCRIPTION FACTOR, ARABIDOPSIS PROTEIN, UNCLASSIFIED DRUG, ,
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spelling KOHA-OAI-AGRO:459542022-10-26T11:23:34Zhttp://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=45954http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=AAGA quick hyl1 - dependent reactivation of microrna production is required for a proper developmental response after extended periods of light deprivationAchkar, Natalia P.Cho, Seok KeunPoulsen, ChristianArce, Agustin L.Re, Delfina A.Giudicatti, Axel J.Karayekov, ElizabethCasal, Jorge Josétextspaapplication/pdfLight is the most influential environmental stimulus for plant growth. In response to deficient light, plants reprogram their development to adjust their growth in search for a light source. A fine reprogramming of gene expression orchestrates this adaptive trait. Here we show that plants alter microRNA (miRNA) biogenesis in response to light transition. When plants suffer an unusual extended period of light deprivation, the miRNA biogenesis factor HYPONASTIC LEAVES 1 (HYL1) is degraded but an inactive pool of phosphorylated protein remains stable inside the nucleus. Degradation of HYL1 leads to the release of gene silencing, triggering a proper response to dark and shade. Upon light restoration, a quick dephosphorylation of HYL1 leads to the reactivation of miRNA biogenesis and a switch toward a developmental program that maximizes the light uptake. Our findings define a unique and fast regulatory mechanism controlling the plant silencing machinery during plant light response.Light is the most influential environmental stimulus for plant growth. In response to deficient light, plants reprogram their development to adjust their growth in search for a light source. A fine reprogramming of gene expression orchestrates this adaptive trait. Here we show that plants alter microRNA (miRNA) biogenesis in response to light transition. When plants suffer an unusual extended period of light deprivation, the miRNA biogenesis factor HYPONASTIC LEAVES 1 (HYL1) is degraded but an inactive pool of phosphorylated protein remains stable inside the nucleus. Degradation of HYL1 leads to the release of gene silencing, triggering a proper response to dark and shade. Upon light restoration, a quick dephosphorylation of HYL1 leads to the reactivation of miRNA biogenesis and a switch toward a developmental program that maximizes the light uptake. Our findings define a unique and fast regulatory mechanism controlling the plant silencing machinery during plant light response.ARABIDOPSISGENEGENE SILENCINGHYL1LIGHT RESPONSEMICRORNASPHOSPHORYLATIONSHADEPHOSPHOPROTEINTRANSCRIPTION FACTORARABIDOPSIS PROTEINUNCLASSIFIED DRUGDevelopmental Cell
institution UBA FA
collection Koha
country Argentina
countrycode AR
component Bibliográfico
access En linea
En linea
databasecode cat-ceiba
tag biblioteca
region America del Sur
libraryname Biblioteca Central FAUBA
language spa
topic ARABIDOPSIS
GENE
GENE SILENCING
HYL1
LIGHT RESPONSE
MICRORNAS
PHOSPHORYLATION
SHADE
PHOSPHOPROTEIN
TRANSCRIPTION FACTOR
ARABIDOPSIS PROTEIN
UNCLASSIFIED DRUG

ARABIDOPSIS
GENE
GENE SILENCING
HYL1
LIGHT RESPONSE
MICRORNAS
PHOSPHORYLATION
SHADE
PHOSPHOPROTEIN
TRANSCRIPTION FACTOR
ARABIDOPSIS PROTEIN
UNCLASSIFIED DRUG
spellingShingle ARABIDOPSIS
GENE
GENE SILENCING
HYL1
LIGHT RESPONSE
MICRORNAS
PHOSPHORYLATION
SHADE
PHOSPHOPROTEIN
TRANSCRIPTION FACTOR
ARABIDOPSIS PROTEIN
UNCLASSIFIED DRUG

ARABIDOPSIS
GENE
GENE SILENCING
HYL1
LIGHT RESPONSE
MICRORNAS
PHOSPHORYLATION
SHADE
PHOSPHOPROTEIN
TRANSCRIPTION FACTOR
ARABIDOPSIS PROTEIN
UNCLASSIFIED DRUG
Achkar, Natalia P.
Cho, Seok Keun
Poulsen, Christian
Arce, Agustin L.
Re, Delfina A.
Giudicatti, Axel J.
Karayekov, Elizabeth
Casal, Jorge José
A quick hyl1 - dependent reactivation of microrna production is required for a proper developmental response after extended periods of light deprivation
description Light is the most influential environmental stimulus for plant growth. In response to deficient light, plants reprogram their development to adjust their growth in search for a light source. A fine reprogramming of gene expression orchestrates this adaptive trait. Here we show that plants alter microRNA (miRNA) biogenesis in response to light transition. When plants suffer an unusual extended period of light deprivation, the miRNA biogenesis factor HYPONASTIC LEAVES 1 (HYL1) is degraded but an inactive pool of phosphorylated protein remains stable inside the nucleus. Degradation of HYL1 leads to the release of gene silencing, triggering a proper response to dark and shade. Upon light restoration, a quick dephosphorylation of HYL1 leads to the reactivation of miRNA biogenesis and a switch toward a developmental program that maximizes the light uptake. Our findings define a unique and fast regulatory mechanism controlling the plant silencing machinery during plant light response.
format Texto
topic_facet
ARABIDOPSIS
GENE
GENE SILENCING
HYL1
LIGHT RESPONSE
MICRORNAS
PHOSPHORYLATION
SHADE
PHOSPHOPROTEIN
TRANSCRIPTION FACTOR
ARABIDOPSIS PROTEIN
UNCLASSIFIED DRUG
author Achkar, Natalia P.
Cho, Seok Keun
Poulsen, Christian
Arce, Agustin L.
Re, Delfina A.
Giudicatti, Axel J.
Karayekov, Elizabeth
Casal, Jorge José
author_facet Achkar, Natalia P.
Cho, Seok Keun
Poulsen, Christian
Arce, Agustin L.
Re, Delfina A.
Giudicatti, Axel J.
Karayekov, Elizabeth
Casal, Jorge José
author_sort Achkar, Natalia P.
title A quick hyl1 - dependent reactivation of microrna production is required for a proper developmental response after extended periods of light deprivation
title_short A quick hyl1 - dependent reactivation of microrna production is required for a proper developmental response after extended periods of light deprivation
title_full A quick hyl1 - dependent reactivation of microrna production is required for a proper developmental response after extended periods of light deprivation
title_fullStr A quick hyl1 - dependent reactivation of microrna production is required for a proper developmental response after extended periods of light deprivation
title_full_unstemmed A quick hyl1 - dependent reactivation of microrna production is required for a proper developmental response after extended periods of light deprivation
title_sort quick hyl1 - dependent reactivation of microrna production is required for a proper developmental response after extended periods of light deprivation
url http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=45954
http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=
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http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=
http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=
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