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231224s2015 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/erv097
|2 doi
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|a DE-627
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|e rakwb
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|a eng
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|a Abu-Abied, Mohamad
|e verfasserin
|4 aut
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|a Dissecting the contribution of microtubule behaviour in adventitious root induction
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|c 2015
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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 09.02.2016
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|a Date Revised 13.11.2018
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © The Author 2015. Published by Oxford University Press on behalf of the Society for Experimental Biology.
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|a Induction of adventitious roots (ARs) in recalcitrant plants often culminates in cell division and callus formation rather than root differentiation. Evidence is provided here to suggest that microtubules (MTs) play a role in the shift from cell division to cell differentiation during AR induction. First, it was found that fewer ARs form in the temperature-sensitive mutant mor1-1, in which the MT-associated protein MOR1 is mutated, and in bot1-1, in which the MT-severing protein katanin is mutated. In the two latter mutants, MT dynamics and form are perturbed. By contrast, the number of ARs increased in RIC1-OX3 plants, in which MT bundling is enhanced and katanin is activated. In addition, any1 plants in which cell walls are perturbed made more ARs than wild-type plants. MT perturbations during AR induction in mor1-1 or in wild-type hypocotyls treated with oryzalin led to the formation of amorphous clusters of cells reminiscent of callus. In these cells a specific pattern of polarized light retardation by the cell walls was lost. PIN1 polarization and auxin maxima were hampered and differentiation of the epidermis was inhibited. It is concluded that a fine-tuned crosstalk between MTs, cell walls, and auxin transport is required for proper AR induction
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Adventitious roots
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|a Arabidopsis
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|a auxin
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|a cell wall
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|a microtubule
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|a oryzalin.
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|a Arabidopsis Proteins
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|a Dinitrobenzenes
|2 NLM
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|a Indoleacetic Acids
|2 NLM
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|a MOR1 protein, Arabidopsis
|2 NLM
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|a Membrane Transport Proteins
|2 NLM
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|a Microtubule-Associated Proteins
|2 NLM
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|a PIN1 protein, Arabidopsis
|2 NLM
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|a Sulfanilamides
|2 NLM
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|a oryzalin
|2 NLM
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|a 662E385DWH
|2 NLM
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|a Rogovoy Stelmakh, Oksana
|e verfasserin
|4 aut
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|a Mordehaev, Inna
|e verfasserin
|4 aut
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|a Grumberg, Marina
|e verfasserin
|4 aut
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|a Elbaum, Rivka
|e verfasserin
|4 aut
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|a Wasteneys, Geoffrey O
|e verfasserin
|4 aut
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|a Sadot, Einat
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 66(2015), 9 vom: 18. Mai, Seite 2813-24
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnas
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| 773 |
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|g volume:66
|g year:2015
|g number:9
|g day:18
|g month:05
|g pages:2813-24
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|u http://dx.doi.org/10.1093/jxb/erv097
|3 Volltext
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