Arabidopsis thaliana TERMINAL FLOWER2 is involved in light‐controlled signalling during seedling photomorphogenesis
Identifieur interne : 000418 ( Istex/Checkpoint ); précédent : 000417; suivant : 000419Arabidopsis thaliana TERMINAL FLOWER2 is involved in light‐controlled signalling during seedling photomorphogenesis
Auteurs : Ana Elisa Valdés [Suède] ; Kristina Rizzardi [Suède] ; Henrik Johannesson [Suède] ; Alessia Para [Suède] ; Annika Sund S-Larsson [Suède] ; Katarina Landberg [Suède]Source :
- Plant, Cell & Environment [ 0140-7791 ] ; 2012-06.
English descriptors
- Teeft :
- Annual review, Arabidopsis, Arabidopsis thaliana, Auxin, Auxin biosynthesis, Biosynthesis, Blackwell publishing, Cdna, Chlorophyll, Chlorophyll biosynthesis, Cotyledon, Cotyledon size, Distinct letters, Double mutants, Elongation, Error bars, Etiolated, Etiolated seedlings, Expression levels, Gene, Genetics, Genotype, Greening response, Heterochromatin, Heterochromatin protein, Higher plants, Histone, Hypocotyl, Hypocotyl elongation, Hypocotyl length, Hypocotyls, Iaa5, Iaa6, Light conditions, Light intensities, Mmol, Mutant, Mutant plants, National academy, Negative regulation, Phenotype, Photomorphogenesis, Photoreceptors, Phya, Phya locus, Phya promoter, Phyb, Phytochrome, Phytochromes, Plant biology, Plant cell, Plant journal, Plant physiology, Plant science, Pora, Primer, Protein interactions, Quail, Reference gene, Relative transcript levels, Seedling, Seedling photomorphogenesis, Shade avoidance response, Shade conditions, Tfl2, Thaliana, Uence rates, Uorescence, Uorescence complementation, Yeast cells.
Abstract
Plants respond to changes in the environment by altering their growth pattern. Light is one of the most important environmental cues and affects plants throughout the life cycle. It is perceived by photoreceptors such as phytochromes that absorb light of red and far‐red wavelengths and control, for example, seedling de‐etiolation, chlorophyll biosynthesis and shade avoidance response. We report that the terminal flower2 (tfl2) mutant, carrying a mutation in the Arabidopsis thaliana HETEROCHROMATIN PROTEIN1 homolog, functions in negative regulation of phytochrome dependent light signalling. tfl2 shows defects in both hypocotyl elongation and shade avoidance response. Double mutant analysis indicates that mutants of the red/far‐red light absorbing phytochrome family of plant photoreceptors, phyA and phyB, are epistatic to tfl2 in far‐red and red light, respectively. An overlap between genes regulated by light and by auxin has earlier been reported and, in tfl2 plants light‐dependent auxin‐regulated genes are misexpressed. Further, we show that TFL2 binds to IAA5 and IAA19 suggesting that TFL2 might be involved in regulation of phytochrome‐mediated light responses through auxin action.
The participation of TERMINAL FLOWER2 (TFL2), the Arabidopsis thaliana HETEROCHROMATIN PROTEIN1 homolog, in light signalling has been proposed due to the early flowering and reduced sensitivity to day length displayed by tfl2 mutants. We report that TFL2 affects the phytochrome‐dependent light signalling during seedling photomorphogenesis, and that light‐dependent auxin‐regulated genes are misexpressed in tfl2 plants. Moreover, TFL2 interacts with the IAA5 and IAA19 proteins, suggesting that TFL2 might be involved in regulation of phytochrome‐mediated light responses through auxin action.
Url:
DOI: 10.1111/j.1365-3040.2011.02468.x
Affiliations:
Links toward previous steps (curation, corpus...)
Links to Exploration step
ISTEX:508DCB730E931AE9C4B007DE74498C99C70E2C4FLe document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Arabidopsis thaliana TERMINAL FLOWER2 is involved in light‐controlled signalling during seedling photomorphogenesis</title><author><name sortKey="Valdes, Ana Elisa" sort="Valdes, Ana Elisa" uniqKey="Valdes A" first="Ana Elisa" last="Valdés">Ana Elisa Valdés</name></author><author><name sortKey="Rizzardi, Kristina" sort="Rizzardi, Kristina" uniqKey="Rizzardi K" first="Kristina" last="Rizzardi">Kristina Rizzardi</name></author><author><name sortKey="Johannesson, Henrik" sort="Johannesson, Henrik" uniqKey="Johannesson H" first="Henrik" last="Johannesson">Henrik Johannesson</name></author><author><name sortKey="Para, Alessia" sort="Para, Alessia" uniqKey="Para A" first="Alessia" last="Para">Alessia Para</name></author><author><name sortKey="Sund S Arsson, Annika" sort="Sund S Arsson, Annika" uniqKey="Sund S Arsson A" first="Annika" last="Sund S-Larsson">Annika Sund S-Larsson</name></author><author><name sortKey="Landberg, Katarina" sort="Landberg, Katarina" uniqKey="Landberg K" first="Katarina" last="Landberg">Katarina Landberg</name></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:508DCB730E931AE9C4B007DE74498C99C70E2C4F</idno><date when="2012" year="2012">2012</date><idno type="doi">10.1111/j.1365-3040.2011.02468.x</idno><idno type="url">https://api.istex.fr/ark:/67375/WNG-KJ8CRCSK-G/fulltext.pdf</idno><idno type="wicri:Area/Istex/Corpus">001C56</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">001C56</idno><idno type="wicri:Area/Istex/Curation">001C56</idno><idno type="wicri:Area/Istex/Checkpoint">000418</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Checkpoint">000418</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main">Arabidopsis thaliana TERMINAL FLOWER2 is involved in light‐controlled signalling during seedling photomorphogenesis</title><author><name sortKey="Valdes, Ana Elisa" sort="Valdes, Ana Elisa" uniqKey="Valdes A" first="Ana Elisa" last="Valdés">Ana Elisa Valdés</name><affiliation wicri:level="4"><country xml:lang="fr">Suède</country><wicri:regionArea>Department of Physiological Botany, Evolutionary Biology Centre, Uppsala University, Norbyvägen 18d, SE‐75236 Uppsala</wicri:regionArea><orgName type="university">Université d'Uppsala</orgName><placeName><settlement type="city">Uppsala</settlement><region nuts="1">Svealand</region><region nuts="1">East Middle Sweden</region></placeName></affiliation></author><author><name sortKey="Rizzardi, Kristina" sort="Rizzardi, Kristina" uniqKey="Rizzardi K" first="Kristina" last="Rizzardi">Kristina Rizzardi</name><affiliation wicri:level="4"><country xml:lang="fr">Suède</country><wicri:regionArea>Department of Physiological Botany, Evolutionary Biology Centre, Uppsala University, Norbyvägen 18d, SE‐75236 Uppsala</wicri:regionArea><orgName type="university">Université d'Uppsala</orgName><placeName><settlement type="city">Uppsala</settlement><region nuts="1">Svealand</region><region nuts="1">East Middle Sweden</region></placeName></affiliation></author><author><name sortKey="Johannesson, Henrik" sort="Johannesson, Henrik" uniqKey="Johannesson H" first="Henrik" last="Johannesson">Henrik Johannesson</name><affiliation wicri:level="4"><country xml:lang="fr">Suède</country><wicri:regionArea>Department of Physiological Botany, Evolutionary Biology Centre, Uppsala University, Norbyvägen 18d, SE‐75236 Uppsala</wicri:regionArea><orgName type="university">Université d'Uppsala</orgName><placeName><settlement type="city">Uppsala</settlement><region nuts="1">Svealand</region><region nuts="1">East Middle Sweden</region></placeName></affiliation></author><author><name sortKey="Para, Alessia" sort="Para, Alessia" uniqKey="Para A" first="Alessia" last="Para">Alessia Para</name><affiliation wicri:level="4"><country xml:lang="fr">Suède</country><wicri:regionArea>Department of Physiological Botany, Evolutionary Biology Centre, Uppsala University, Norbyvägen 18d, SE‐75236 Uppsala</wicri:regionArea><orgName type="university">Université d'Uppsala</orgName><placeName><settlement type="city">Uppsala</settlement><region nuts="1">Svealand</region><region nuts="1">East Middle Sweden</region></placeName></affiliation></author><author><name sortKey="Sund S Arsson, Annika" sort="Sund S Arsson, Annika" uniqKey="Sund S Arsson A" first="Annika" last="Sund S-Larsson">Annika Sund S-Larsson</name><affiliation wicri:level="4"><country xml:lang="fr">Suède</country><wicri:regionArea>Department of Physiological Botany, Evolutionary Biology Centre, Uppsala University, Norbyvägen 18d, SE‐75236 Uppsala</wicri:regionArea><orgName type="university">Université d'Uppsala</orgName><placeName><settlement type="city">Uppsala</settlement><region nuts="1">Svealand</region><region nuts="1">East Middle Sweden</region></placeName></affiliation></author><author><name sortKey="Landberg, Katarina" sort="Landberg, Katarina" uniqKey="Landberg K" first="Katarina" last="Landberg">Katarina Landberg</name><affiliation wicri:level="1"><country xml:lang="fr">Suède</country><wicri:regionArea>Department of Plant Biology and Forest Genetics, Uppsala BioCenter, Swedish University of Agricultural Sciences, Box 7080, SE‐75007 Uppsala</wicri:regionArea><wicri:noRegion>SE‐75007 Uppsala</wicri:noRegion></affiliation><affiliation wicri:level="1"><country wicri:rule="url">Suède</country></affiliation></author></analytic><monogr></monogr><series><title level="j" type="main">Plant, Cell & Environment</title><title level="j" type="alt">PLANT CELL ENVIRONMENT</title><idno type="ISSN">0140-7791</idno><idno type="eISSN">1365-3040</idno><imprint><biblScope unit="vol">35</biblScope><biblScope unit="issue">6</biblScope><biblScope unit="page" from="1013">1013</biblScope><biblScope unit="page" to="1025">1025</biblScope><biblScope unit="page-count">13</biblScope><publisher>Blackwell Publishing Ltd</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="2012-06">2012-06</date></imprint><idno type="ISSN">0140-7791</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0140-7791</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="Teeft" xml:lang="en"><term>Annual review</term><term>Arabidopsis</term><term>Arabidopsis thaliana</term><term>Auxin</term><term>Auxin biosynthesis</term><term>Biosynthesis</term><term>Blackwell publishing</term><term>Cdna</term><term>Chlorophyll</term><term>Chlorophyll biosynthesis</term><term>Cotyledon</term><term>Cotyledon size</term><term>Distinct letters</term><term>Double mutants</term><term>Elongation</term><term>Error bars</term><term>Etiolated</term><term>Etiolated seedlings</term><term>Expression levels</term><term>Gene</term><term>Genetics</term><term>Genotype</term><term>Greening response</term><term>Heterochromatin</term><term>Heterochromatin protein</term><term>Higher plants</term><term>Histone</term><term>Hypocotyl</term><term>Hypocotyl elongation</term><term>Hypocotyl length</term><term>Hypocotyls</term><term>Iaa5</term><term>Iaa6</term><term>Light conditions</term><term>Light intensities</term><term>Mmol</term><term>Mutant</term><term>Mutant plants</term><term>National academy</term><term>Negative regulation</term><term>Phenotype</term><term>Photomorphogenesis</term><term>Photoreceptors</term><term>Phya</term><term>Phya locus</term><term>Phya promoter</term><term>Phyb</term><term>Phytochrome</term><term>Phytochromes</term><term>Plant biology</term><term>Plant cell</term><term>Plant journal</term><term>Plant physiology</term><term>Plant science</term><term>Pora</term><term>Primer</term><term>Protein interactions</term><term>Quail</term><term>Reference gene</term><term>Relative transcript levels</term><term>Seedling</term><term>Seedling photomorphogenesis</term><term>Shade avoidance response</term><term>Shade conditions</term><term>Tfl2</term><term>Thaliana</term><term>Uence rates</term><term>Uorescence</term><term>Uorescence complementation</term><term>Yeast cells</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Plants respond to changes in the environment by altering their growth pattern. Light is one of the most important environmental cues and affects plants throughout the life cycle. It is perceived by photoreceptors such as phytochromes that absorb light of red and far‐red wavelengths and control, for example, seedling de‐etiolation, chlorophyll biosynthesis and shade avoidance response. We report that the terminal flower2 (tfl2) mutant, carrying a mutation in the Arabidopsis thaliana HETEROCHROMATIN PROTEIN1 homolog, functions in negative regulation of phytochrome dependent light signalling. tfl2 shows defects in both hypocotyl elongation and shade avoidance response. Double mutant analysis indicates that mutants of the red/far‐red light absorbing phytochrome family of plant photoreceptors, phyA and phyB, are epistatic to tfl2 in far‐red and red light, respectively. An overlap between genes regulated by light and by auxin has earlier been reported and, in tfl2 plants light‐dependent auxin‐regulated genes are misexpressed. Further, we show that TFL2 binds to IAA5 and IAA19 suggesting that TFL2 might be involved in regulation of phytochrome‐mediated light responses through auxin action.</div><div type="abstract">The participation of TERMINAL FLOWER2 (TFL2), the Arabidopsis thaliana HETEROCHROMATIN PROTEIN1 homolog, in light signalling has been proposed due to the early flowering and reduced sensitivity to day length displayed by tfl2 mutants. We report that TFL2 affects the phytochrome‐dependent light signalling during seedling photomorphogenesis, and that light‐dependent auxin‐regulated genes are misexpressed in tfl2 plants. Moreover, TFL2 interacts with the IAA5 and IAA19 proteins, suggesting that TFL2 might be involved in regulation of phytochrome‐mediated light responses through auxin action.</div></front></TEI><affiliations><list><country><li>Suède</li></country><region><li>East Middle Sweden</li><li>Svealand</li></region><settlement><li>Uppsala</li></settlement><orgName><li>Université d'Uppsala</li></orgName></list><tree><country name="Suède"><region name="Svealand"><name sortKey="Valdes, Ana Elisa" sort="Valdes, Ana Elisa" uniqKey="Valdes A" first="Ana Elisa" last="Valdés">Ana Elisa Valdés</name></region><name sortKey="Johannesson, Henrik" sort="Johannesson, Henrik" uniqKey="Johannesson H" first="Henrik" last="Johannesson">Henrik Johannesson</name><name sortKey="Landberg, Katarina" sort="Landberg, Katarina" uniqKey="Landberg K" first="Katarina" last="Landberg">Katarina Landberg</name><name sortKey="Landberg, Katarina" sort="Landberg, Katarina" uniqKey="Landberg K" first="Katarina" last="Landberg">Katarina Landberg</name><name sortKey="Para, Alessia" sort="Para, Alessia" uniqKey="Para A" first="Alessia" last="Para">Alessia Para</name><name sortKey="Rizzardi, Kristina" sort="Rizzardi, Kristina" uniqKey="Rizzardi K" first="Kristina" last="Rizzardi">Kristina Rizzardi</name><name sortKey="Sund S Arsson, Annika" sort="Sund S Arsson, Annika" uniqKey="Sund S Arsson A" first="Annika" last="Sund S-Larsson">Annika Sund S-Larsson</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Sante/explor/MersV1/Data/Istex/Checkpoint
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000418 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Istex/Checkpoint/biblio.hfd -nk 000418 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Sante
|area= MersV1
|flux= Istex
|étape= Checkpoint
|type= RBID
|clé= ISTEX:508DCB730E931AE9C4B007DE74498C99C70E2C4F
|texte= Arabidopsis thaliana TERMINAL FLOWER2 is involved in light‐controlled signalling during seedling photomorphogenesis
}}
| This area was generated with Dilib version V0.6.33. |  |