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231224s2014 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/eru189
|2 doi
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|a pubmed25n0794.xml
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|a (NLM)24834920
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
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|a Wang, Chuang
|e verfasserin
|4 aut
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|a Mutation in xyloglucan 6-xylosytransferase results in abnormal root hair development in Oryza sativa
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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
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|2 rdacarrier
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|a Date Completed 01.04.2015
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|a Date Revised 21.10.2021
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|a published: Print-Electronic
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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 Root hairs are important for nutrient uptake, anchorage, and plant-microbe interactions. From a population of rice (Oryza sativa) mutagenized by ethyl methanesulfonate (EMS), a short root hair2 (srh2) mutant was identified. In hydroponic culture, srh2 seedlings were significantly reduced in root hair length. Bubble-like extrusions and irregular epidermal cells were observed at the tips of srh2 root hairs when grown under acidic conditions, suggesting the possible reduction of the tensile strength of the cell wall in this mutant. Map-based cloning identified a mutation in the gene encoding xyloglucan (XyG) 6-xylosyltransferase (OsXXT1). OsXXT1 displays more than 70% amino acid sequence identity with the previously characterized Arabidopsis thaliana XYG XYLOSYL TRANSFERASE 1 (AtXXT1) and XYG XYLOSYL TRANSFERASE 2 (AtXXT2), which catalyse the transfer of xylose onto β-1,4-glucan chains. Furthermore, expression of the full-length coding sequence of OsXXT1 could complement the root hair defect, and slow growth and XyG synthesis in the Arabidopsis xxt1 xxt2 double mutant. Transgenic plants expressing the β-glucuronidase (GUS) reporter under the control of the OsXXT1 promoter displayed GUS expression in multiple tissues, most prominently in root epidermal cells. These results demonstrate the importance of OsXXT1 in maintaining cell wall structure and tensile strength in rice, a typical grass species that contains relatively low XyG content in cell walls
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Rice
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|a root hair
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|a type I cell wall
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|a type II cell wall
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|a xyloglucan
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|a xylosyltransferase.
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|a Plant Proteins
|2 NLM
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|a Pentosyltransferases
|2 NLM
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|a EC 2.4.2.-
|2 NLM
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|a xyloglucan xylosyltransferase
|2 NLM
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|a EC 2.4.2.-
|2 NLM
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| 700 |
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|a Li, Shuai
|e verfasserin
|4 aut
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|a Ng, Sophia
|e verfasserin
|4 aut
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|a Zhang, Baocai
|e verfasserin
|4 aut
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|a Zhou, Yihua
|e verfasserin
|4 aut
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|a Whelan, James
|e verfasserin
|4 aut
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|a Wu, Ping
|e verfasserin
|4 aut
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|a Shou, Huixia
|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), 15 vom: 28. Aug., Seite 4149-57
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnas
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| 773 |
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|g volume:65
|g year:2014
|g number:15
|g day:28
|g month:08
|g pages:4149-57
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|u http://dx.doi.org/10.1093/jxb/eru189
|3 Volltext
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