PoplarV1, Main, Exploration, bibRecord, 001908

Ectopic expression of a cytochrome P450 monooxygenase gene PtCYP714A3 from Populus trichocarpa reduces shoot growth and improves tolerance to salt stress in transgenic rice.

Identifieur interne : 001908 ( Main/Exploration ); précédent : 001907; suivant : 001909

Ectopic expression of a cytochrome P450 monooxygenase gene PtCYP714A3 from Populus trichocarpa reduces shoot growth and improves tolerance to salt stress in transgenic rice.

Auteurs : Cuiting Wang [République populaire de Chine] ; Yang Yang [République populaire de Chine] ; Haihai Wang [République populaire de Chine] ; Xiaojuan Ran [République populaire de Chine] ; Bei Li [République populaire de Chine] ; Jiantao Zhang [République populaire de Chine] ; Hongxia Zhang [République populaire de Chine]

Source :

Plant biotechnology journal [ 1467-7652 ] ; 2016.

RBID : pubmed:26970512

Descripteurs français

KwdFr :
- Chlorure de sodium (pharmacologie), Cytochrome P-450 enzyme system (génétique), Cytochrome P-450 enzyme system (métabolisme), Oryza (effets des médicaments et des substances chimiques), Oryza (enzymologie), Oryza (métabolisme), Populus (enzymologie), Protéines végétales (génétique), Protéines végétales (métabolisme), Régulation de l'expression des gènes végétaux (effets des médicaments et des substances chimiques), Régulation de l'expression des gènes végétaux (génétique), Tolérance au sel (génétique), Végétaux génétiquement modifiés (effets des médicaments et des substances chimiques), Végétaux génétiquement modifiés (enzymologie), Végétaux génétiquement modifiés (métabolisme).
MESH :
- effets des médicaments et des substances chimiques : Oryza, Régulation de l'expression des gènes végétaux, Végétaux génétiquement modifiés.
- enzymologie : Oryza, Populus, Végétaux génétiquement modifiés.
- génétique : Cytochrome P-450 enzyme system, Protéines végétales, Régulation de l'expression des gènes végétaux, Tolérance au sel.
- métabolisme : Cytochrome P-450 enzyme system, Oryza, Protéines végétales, Végétaux génétiquement modifiés.
- pharmacologie : Chlorure de sodium.

English descriptors

KwdEn :
- Cytochrome P-450 Enzyme System (genetics), Cytochrome P-450 Enzyme System (metabolism), Gene Expression Regulation, Plant (drug effects), Gene Expression Regulation, Plant (genetics), Oryza (drug effects), Oryza (enzymology), Oryza (metabolism), Plant Proteins (genetics), Plant Proteins (metabolism), Plants, Genetically Modified (drug effects), Plants, Genetically Modified (enzymology), Plants, Genetically Modified (metabolism), Populus (enzymology), Salt Tolerance (genetics), Sodium Chloride (pharmacology).
MESH :
- chemical , genetics : Cytochrome P-450 Enzyme System, Plant Proteins.
- chemical , metabolism : Cytochrome P-450 Enzyme System, Plant Proteins.
- drug effects : Gene Expression Regulation, Plant, Oryza, Plants, Genetically Modified.
- enzymology : Oryza, Plants, Genetically Modified, Populus.
- genetics : Gene Expression Regulation, Plant, Salt Tolerance.
- metabolism : Oryza, Plants, Genetically Modified.
- chemical , pharmacology : Sodium Chloride.

Abstract

In Arabidopsis thaliana and Oryza sativa, the cytochrome P450 (CYP) 714 protein family represents a unique group of CYP monooxygenase, which functions as a shoot-specific regulator in plant development through gibberellin deactivation. Here, we report the functional characterizations of PtCYP714A3, an OsCYP714D1/Eui homologue from Populus trichocarpa. PtCYP714A3 was ubiquitously expressed with the highest transcript level in cambium-phloem tissues, and was greatly induced by salt and osmotic stress in poplar. Subcellular localization analyses indicated that PtCYP714A3-YFP fusion protein was targeted to endoplasmic reticulum (ER). Expression of PtCYP714A3 in the rice eui mutant could rescue its excessive-shoot-growth phenotype. Ectopic expression of PtCYP714A3 in rice led to semi-dwarfed phenotype with promoted tillering and reduced seed size. Transgenic lines which showed significant expression of PtCYP714A3 also accumulated lower GA level than did the wild-type (WT) plants. The expression of some GA biosynthesis genes was significantly suppressed in these transgenic plants. Furthermore, transgenic rice plants exhibited enhanced tolerance to salt and maintained more Na(+) in both shoot and root tissues under salinity stress. All these results not only suggest a crucial role of PtCYP714A3 in shoot responses to salt toxicity in rice, but also provide a molecular basis for genetic engineering of salt-tolerant crops.

DOI: 10.1111/pbi.12544
PubMed: 26970512
PubMed Central: PMC5069455

Affiliations:

République populaire de Chine

Links toward previous steps (curation, corpus...)

to stream Main, to step Corpus: 001872
to stream Main, to step Curation: 001872

Le document en format XML

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<front><div type="abstract" xml:lang="en">In Arabidopsis thaliana and Oryza sativa, the cytochrome P450 (CYP) 714 protein family represents a unique group of CYP monooxygenase, which functions as a shoot-specific regulator in plant development through gibberellin deactivation. Here, we report the functional characterizations of PtCYP714A3, an OsCYP714D1/Eui homologue from Populus trichocarpa. PtCYP714A3 was ubiquitously expressed with the highest transcript level in cambium-phloem tissues, and was greatly induced by salt and osmotic stress in poplar. Subcellular localization analyses indicated that PtCYP714A3-YFP fusion protein was targeted to endoplasmic reticulum (ER). Expression of PtCYP714A3 in the rice eui mutant could rescue its excessive-shoot-growth phenotype. Ectopic expression of PtCYP714A3 in rice led to semi-dwarfed phenotype with promoted tillering and reduced seed size. Transgenic lines which showed significant expression of PtCYP714A3 also accumulated lower GA level than did the wild-type (WT) plants. The expression of some GA biosynthesis genes was significantly suppressed in these transgenic plants. Furthermore, transgenic rice plants exhibited enhanced tolerance to salt and maintained more Na(+) in both shoot and root tissues under salinity stress. All these results not only suggest a crucial role of PtCYP714A3 in shoot responses to salt toxicity in rice, but also provide a molecular basis for genetic engineering of salt-tolerant crops.</div>
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<Abstract><AbstractText>In Arabidopsis thaliana and Oryza sativa, the cytochrome P450 (CYP) 714 protein family represents a unique group of CYP monooxygenase, which functions as a shoot-specific regulator in plant development through gibberellin deactivation. Here, we report the functional characterizations of PtCYP714A3, an OsCYP714D1/Eui homologue from Populus trichocarpa. PtCYP714A3 was ubiquitously expressed with the highest transcript level in cambium-phloem tissues, and was greatly induced by salt and osmotic stress in poplar. Subcellular localization analyses indicated that PtCYP714A3-YFP fusion protein was targeted to endoplasmic reticulum (ER). Expression of PtCYP714A3 in the rice eui mutant could rescue its excessive-shoot-growth phenotype. Ectopic expression of PtCYP714A3 in rice led to semi-dwarfed phenotype with promoted tillering and reduced seed size. Transgenic lines which showed significant expression of PtCYP714A3 also accumulated lower GA level than did the wild-type (WT) plants. The expression of some GA biosynthesis genes was significantly suppressed in these transgenic plants. Furthermore, transgenic rice plants exhibited enhanced tolerance to salt and maintained more Na(+) in both shoot and root tissues under salinity stress. All these results not only suggest a crucial role of PtCYP714A3 in shoot responses to salt toxicity in rice, but also provide a molecular basis for genetic engineering of salt-tolerant crops.</AbstractText>
<CopyrightInformation>© 2016 The Authors. Plant Biotechnology Journal published by Society for Experimental Biology and The Association of Applied Biologists and John Wiley & Sons Ltd.</CopyrightInformation>
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Ectopic expression of a cytochrome P450 monooxygenase gene PtCYP714A3 from Populus trichocarpa reduces shoot growth and improves tolerance to salt stress in transgenic rice.

Ectopic expression of a cytochrome P450 monooxygenase gene PtCYP714A3 from Populus trichocarpa reduces shoot growth and improves tolerance to salt stress in transgenic rice.

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