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Fackel interacts with gibberellic acid signaling and vernalization to mediate flowering in Arabidopsis

Main conclusion Fackel (FK) is involved in the flowering of Arabidopsis mainly via the gibberellin pathway and vernalization pathway. This new function of FK is partially dependent on the FLOWERING LOCUS C ( FLC ). A common transitional process from vegetative stage to reproductive stage exists in h... Full description

Journal Title: Planta 2017, Vol.245 (5), p.939-950
Main Author: Huang, Bingyao
Other Authors: Qian, Pingping , Gao, Na , Shen, Jie , Hou, Suiwen
Format: Electronic Article Electronic Article
Language: English
Subjects:
Publisher: Berlin/Heidelberg: Springer Berlin Heidelberg
ID: ISSN: 0032-0935
Link: https://www.ncbi.nlm.nih.gov/pubmed/28108812
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recordid: cdi_proquest_miscellaneous_1891885773
title: Fackel interacts with gibberellic acid signaling and vernalization to mediate flowering in Arabidopsis
format: Article
creator:
  • Huang, Bingyao
  • Qian, Pingping
  • Gao, Na
  • Shen, Jie
  • Hou, Suiwen
subjects:
  • Agriculture
  • Arabidopsis
  • Arabidopsis - enzymology
  • Arabidopsis - genetics
  • Arabidopsis - physiology
  • Arabidopsis - radiation effects
  • Arabidopsis Proteins - genetics
  • Arabidopsis Proteins - metabolism
  • Biomedical and Life Sciences
  • Ecology
  • Flowers - enzymology
  • Flowers - genetics
  • Flowers - physiology
  • Flowers - radiation effects
  • Forestry
  • Genes, Reporter
  • Gibberellins - metabolism
  • Life Sciences
  • MADS Domain Proteins - genetics
  • MADS Domain Proteins - metabolism
  • Original Article
  • Oxidoreductases - genetics
  • Oxidoreductases - metabolism
  • Phenotype
  • Photoperiod
  • Plant Growth Regulators - metabolism
  • Plant Leaves - enzymology
  • Plant Leaves - genetics
  • Plant Leaves - physiology
  • Plant Leaves - radiation effects
  • Plant Sciences
  • Plants, Genetically Modified
  • Seedlings - enzymology
  • Seedlings - genetics
  • Seedlings - physiology
  • Seedlings - radiation effects
  • Signal Transduction
ispartof: Planta, 2017, Vol.245 (5), p.939-950
description: Main conclusion Fackel (FK) is involved in the flowering of Arabidopsis mainly via the gibberellin pathway and vernalization pathway. This new function of FK is partially dependent on the FLOWERING LOCUS C ( FLC ). A common transitional process from vegetative stage to reproductive stage exists in higher plants during their life cycle. The initiation of flower bud differentiation, which plays a key role in the reproductive phase, is affected by both external environmental and internal regulatory factors. In this study, we showed that the Arabidopsis weak mutant allele fk - J3158 , impaired in the FACKEL (FK) gene, which encodes a C-14 reductase involved in sterol biosynthesis, had a long life cycle and delayed flowering time in different photoperiods. In addition, FK overexpression lines displayed an earlier flowering phenotype than that of the wild type. These processes might be independent of the downstream brassinosteroid (BR) pathway and the autonomous pathway. However, the fk - J3158 plants were more sensitive than wild type in reducing the bolting days and total leaf number under gibberellic acid (GA) treatment. Further studies suggested that FK mutation led to an absence of endogenous GAs in fk - J3158 and FK gene expression was also affected under GA and paclobutrazol (PAC) treatment. Moreover, the delayed flowering time of fk - J3158 could be rescued by a 3-week vernalization treatment, and the expression of FLOWERING LOCUS C ( FLC ) was accordingly down-regulated in fk - J3158 . We also demonstrated that flowering time of fk - J3158 flc double mutant was significantly earlier than that of fk - J3158 under the long-day (LD) conditions. All these results indicated that FK may affect the flowering in Arabidopsis mainly via GA pathway and vernalization pathway. And these effects are partially dependent on the FLOWERING LOCUS C ( FLC ).
language: eng
source:
identifier: ISSN: 0032-0935
fulltext: no_fulltext
issn:
  • 0032-0935
  • 1432-2048
url: Link


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titleFackel interacts with gibberellic acid signaling and vernalization to mediate flowering in Arabidopsis
creatorHuang, Bingyao ; Qian, Pingping ; Gao, Na ; Shen, Jie ; Hou, Suiwen
creatorcontribHuang, Bingyao ; Qian, Pingping ; Gao, Na ; Shen, Jie ; Hou, Suiwen
descriptionMain conclusion Fackel (FK) is involved in the flowering of Arabidopsis mainly via the gibberellin pathway and vernalization pathway. This new function of FK is partially dependent on the FLOWERING LOCUS C ( FLC ). A common transitional process from vegetative stage to reproductive stage exists in higher plants during their life cycle. The initiation of flower bud differentiation, which plays a key role in the reproductive phase, is affected by both external environmental and internal regulatory factors. In this study, we showed that the Arabidopsis weak mutant allele fk - J3158 , impaired in the FACKEL (FK) gene, which encodes a C-14 reductase involved in sterol biosynthesis, had a long life cycle and delayed flowering time in different photoperiods. In addition, FK overexpression lines displayed an earlier flowering phenotype than that of the wild type. These processes might be independent of the downstream brassinosteroid (BR) pathway and the autonomous pathway. However, the fk - J3158 plants were more sensitive than wild type in reducing the bolting days and total leaf number under gibberellic acid (GA) treatment. Further studies suggested that FK mutation led to an absence of endogenous GAs in fk - J3158 and FK gene expression was also affected under GA and paclobutrazol (PAC) treatment. Moreover, the delayed flowering time of fk - J3158 could be rescued by a 3-week vernalization treatment, and the expression of FLOWERING LOCUS C ( FLC ) was accordingly down-regulated in fk - J3158 . We also demonstrated that flowering time of fk - J3158 flc double mutant was significantly earlier than that of fk - J3158 under the long-day (LD) conditions. All these results indicated that FK may affect the flowering in Arabidopsis mainly via GA pathway and vernalization pathway. And these effects are partially dependent on the FLOWERING LOCUS C ( FLC ).
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subjectAgriculture ; Arabidopsis ; Arabidopsis - enzymology ; Arabidopsis - genetics ; Arabidopsis - physiology ; Arabidopsis - radiation effects ; Arabidopsis Proteins - genetics ; Arabidopsis Proteins - metabolism ; Biomedical and Life Sciences ; Ecology ; Flowers - enzymology ; Flowers - genetics ; Flowers - physiology ; Flowers - radiation effects ; Forestry ; Genes, Reporter ; Gibberellins - metabolism ; Life Sciences ; MADS Domain Proteins - genetics ; MADS Domain Proteins - metabolism ; Original Article ; Oxidoreductases - genetics ; Oxidoreductases - metabolism ; Phenotype ; Photoperiod ; Plant Growth Regulators - metabolism ; Plant Leaves - enzymology ; Plant Leaves - genetics ; Plant Leaves - physiology ; Plant Leaves - radiation effects ; Plant Sciences ; Plants, Genetically Modified ; Seedlings - enzymology ; Seedlings - genetics ; Seedlings - physiology ; Seedlings - radiation effects ; Signal Transduction
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descriptionMain conclusion Fackel (FK) is involved in the flowering of Arabidopsis mainly via the gibberellin pathway and vernalization pathway. This new function of FK is partially dependent on the FLOWERING LOCUS C ( FLC ). A common transitional process from vegetative stage to reproductive stage exists in higher plants during their life cycle. The initiation of flower bud differentiation, which plays a key role in the reproductive phase, is affected by both external environmental and internal regulatory factors. In this study, we showed that the Arabidopsis weak mutant allele fk - J3158 , impaired in the FACKEL (FK) gene, which encodes a C-14 reductase involved in sterol biosynthesis, had a long life cycle and delayed flowering time in different photoperiods. In addition, FK overexpression lines displayed an earlier flowering phenotype than that of the wild type. These processes might be independent of the downstream brassinosteroid (BR) pathway and the autonomous pathway. However, the fk - J3158 plants were more sensitive than wild type in reducing the bolting days and total leaf number under gibberellic acid (GA) treatment. Further studies suggested that FK mutation led to an absence of endogenous GAs in fk - J3158 and FK gene expression was also affected under GA and paclobutrazol (PAC) treatment. Moreover, the delayed flowering time of fk - J3158 could be rescued by a 3-week vernalization treatment, and the expression of FLOWERING LOCUS C ( FLC ) was accordingly down-regulated in fk - J3158 . We also demonstrated that flowering time of fk - J3158 flc double mutant was significantly earlier than that of fk - J3158 under the long-day (LD) conditions. All these results indicated that FK may affect the flowering in Arabidopsis mainly via GA pathway and vernalization pathway. And these effects are partially dependent on the FLOWERING LOCUS C ( FLC ).
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6Arabidopsis Proteins - genetics
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18MADS Domain Proteins - genetics
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28Plant Leaves - physiology
29Plant Leaves - radiation effects
30Plant Sciences
31Plants, Genetically Modified
32Seedlings - enzymology
33Seedlings - genetics
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35Seedlings - radiation effects
36Signal Transduction
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abstractMain conclusion Fackel (FK) is involved in the flowering of Arabidopsis mainly via the gibberellin pathway and vernalization pathway. This new function of FK is partially dependent on the FLOWERING LOCUS C ( FLC ). A common transitional process from vegetative stage to reproductive stage exists in higher plants during their life cycle. The initiation of flower bud differentiation, which plays a key role in the reproductive phase, is affected by both external environmental and internal regulatory factors. In this study, we showed that the Arabidopsis weak mutant allele fk - J3158 , impaired in the FACKEL (FK) gene, which encodes a C-14 reductase involved in sterol biosynthesis, had a long life cycle and delayed flowering time in different photoperiods. In addition, FK overexpression lines displayed an earlier flowering phenotype than that of the wild type. These processes might be independent of the downstream brassinosteroid (BR) pathway and the autonomous pathway. However, the fk - J3158 plants were more sensitive than wild type in reducing the bolting days and total leaf number under gibberellic acid (GA) treatment. Further studies suggested that FK mutation led to an absence of endogenous GAs in fk - J3158 and FK gene expression was also affected under GA and paclobutrazol (PAC) treatment. Moreover, the delayed flowering time of fk - J3158 could be rescued by a 3-week vernalization treatment, and the expression of FLOWERING LOCUS C ( FLC ) was accordingly down-regulated in fk - J3158 . We also demonstrated that flowering time of fk - J3158 flc double mutant was significantly earlier than that of fk - J3158 under the long-day (LD) conditions. All these results indicated that FK may affect the flowering in Arabidopsis mainly via GA pathway and vernalization pathway. And these effects are partially dependent on the FLOWERING LOCUS C ( FLC ).
copBerlin/Heidelberg
pubSpringer Berlin Heidelberg
pmid28108812
doi10.1007/s00425-017-2652-5