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231224s2014 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/eru249
|2 doi
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|a pubmed25n0797.xml
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|a (NLM)24928984
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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 Zhang, Yanxiang
|e verfasserin
|4 aut
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|a The Aux/IAA gene rum1 involved in seminal and lateral root formation controls vascular patterning in maize (Zea mays L.) primary roots
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|c 2014
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 28.05.2015
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|a Date Revised 21.10.2021
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|a published: Print-Electronic
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|a ErratumIn: J Exp Bot. 2015 Sep;66(19):6081. doi: 10.1093/jxb/erv354. - PMID 26208643
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|a Citation Status MEDLINE
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|a © The Author 2014. Published by Oxford University Press on behalf of the Society for Experimental Biology.
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|a The maize (Zea mays L.) Aux/IAA protein RUM1 (ROOTLESS WITH UNDETECTABLE MERISTEMS 1) controls seminal and lateral root initiation. To identify RUM1-dependent gene expression patterns, RNA-Seq of the differentiation zone of primary roots of rum1 mutants and the wild type was performed in four biological replicates. In total, 2 801 high-confidence maize genes displayed differential gene expression with Fc ≥2 and FDR ≤1%. The auxin signalling-related genes rum1, like-auxin1 (lax1), lax2, (nam ataf cuc 1 nac1), the plethora genes plt1 (plethora 1), bbm1 (baby boom 1), and hscf1 (heat shock complementing factor 1) and the auxin response factors arf8 and arf37 were down-regulated in the mutant rum1. All of these genes except nac1 were auxin-inducible. The maize arf8 and arf37 genes are orthologues of Arabidopsis MP/ARF5 (MONOPTEROS/ARF5), which controls the differentiation of vascular cells. Histological analyses of mutant rum1 roots revealed defects in xylem organization and the differentiation of pith cells around the xylem. Moreover, histochemical staining of enlarged pith cells surrounding late metaxylem elements demonstrated that their thickened cell walls displayed excessive lignin deposition. In line with this phenotype, rum1-dependent mis-expression of several lignin biosynthesis genes was observed. In summary, RNA-Seq of RUM1-dependent gene expression in maize primary roots, in combination with histological and histochemical analyses, revealed the specific regulation of auxin signal transduction components by RUM1 and novel functions of RUM1 in vascular development
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Research Support, U.S. Gov't, Non-P.H.S.
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| 650 |
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|a Auxin
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| 650 |
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|a RNA-Seq
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|a RUM1
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|a lateral roots
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|a lignification
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|a vasculature
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|a xylem.
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| 650 |
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|a Indoleacetic Acids
|2 NLM
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|a Plant Proteins
|2 NLM
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|a Paschold, Anja
|e verfasserin
|4 aut
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|a Marcon, Caroline
|e verfasserin
|4 aut
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|a Liu, Sanzhen
|e verfasserin
|4 aut
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|a Tai, Huanhuan
|e verfasserin
|4 aut
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|a Nestler, Josefine
|e verfasserin
|4 aut
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|a Yeh, Cheng-Ting
|e verfasserin
|4 aut
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|a Opitz, Nina
|e verfasserin
|4 aut
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| 700 |
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|a Lanz, Christa
|e verfasserin
|4 aut
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|a Schnable, Patrick S
|e verfasserin
|4 aut
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|a Hochholdinger, Frank
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 65(2014), 17 vom: 13. Sept., Seite 4919-30
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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| 773 |
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|g volume:65
|g year:2014
|g number:17
|g day:13
|g month:09
|g pages:4919-30
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|u http://dx.doi.org/10.1093/jxb/eru249
|3 Volltext
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|d 65
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|h 4919-30
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