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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1111/nph.17725
|2 doi
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|a pubmed24n1101.xml
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|a (DE-627)NLM330410229
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|a (NLM)34498760
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Cornet, Florent
|e verfasserin
|4 aut
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| 245 |
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|a Strigolactones (SLs) modulate the plastochron by regulating KLUH (KLU) transcript abundance in Arabidopsis
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|c 2021
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 06.01.2022
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|a Date Revised 06.01.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2021 The Authors. New Phytologist © 2021 New Phytologist Foundation.
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|a The timing of leaf emergence at the shoot apical meristem, or plastochron, is highly regulated in plants. Among the genes known to regulate the plastochron in Arabidopsis (Arabidopsis thaliana), KLUH (KLU), orthologous to the rice (Oryza sativa) PLASTOCHRON1, encodes the cytochrome P450 CYP78A5, and is thought to act through generation of a still unknown mobile signal. As klu mutants display not only a short plastochron but also a branching phenotype reminiscent of strigolactone (SL) mutants, we investigated whether KLU/CYP78A5 is involved in SL biosynthesis. We combined a genetic approach, a parasitic plant seed germination bioassay to test klu root exudates, and analysis of transcript abundances of SL-biosynthesis genes in the Arabidopsis klu mutants. We demonstrate that KLU is not involved in the SL-biosynthesis pathway. Moreover, this work allowed us to uncover a new role for SL during Arabidopsis development in modulating plastochron via a KLU-dependent pathway. Globally our data reveal that KLU is required for plastochron-specific SL responses, a first indication of crosstalk between SL and the KLU-derived signal
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Arabidopsis
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|a CYP78A
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|a plant hormone
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| 650 |
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|a plastochron
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|a shoot branching
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|a strigolactones
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|a Arabidopsis Proteins
|2 NLM
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| 650 |
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|a GR24 strigolactone
|2 NLM
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| 650 |
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|a Heterocyclic Compounds, 3-Ring
|2 NLM
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| 650 |
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7 |
|a Lactones
|2 NLM
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| 700 |
1 |
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|a Pillot, Jean-Paul
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Le Bris, Philippe
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Pouvreau, Jean-Bernard
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Arnaud, Nicolas
|e verfasserin
|4 aut
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| 700 |
1 |
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|a de Saint Germain, Alexandre
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Rameau, Catherine
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 232(2021), 5 vom: 05. Dez., Seite 1909-1916
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
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|g volume:232
|g year:2021
|g number:5
|g day:05
|g month:12
|g pages:1909-1916
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| 856 |
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|u http://dx.doi.org/10.1111/nph.17725
|3 Volltext
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|d 232
|j 2021
|e 5
|b 05
|c 12
|h 1909-1916
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