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231224s2014 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/eru029
|2 doi
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|a pubmed24n0787.xml
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|a (DE-627)NLM236097652
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|a (NLM)24596173
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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 |
1 |
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|a Sun, Huwei
|e verfasserin
|4 aut
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| 245 |
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|a Strigolactones are involved in phosphate- and nitrate-deficiency-induced root development and auxin transport in rice
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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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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 21.07.2015
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|a Date Revised 31.03.2022
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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 Strigolactones (SLs) or their derivatives have recently been defined as novel phytohormones that regulate root development. However, it remains unclear whether SLs mediate root growth in response to phosphorus (P) and nitrogen (N) deficiency. In this study, the responses of root development in rice (Oryza sativa L.) to different levels of phosphate and nitrate supply were investigated using wild type (WT) and mutants defective in SL synthesis (d10 and d27) or insensitive to SL (d3). Reduced concentration of either phosphate or nitrate led to increased seminal root length and decreased lateral root density in WT. Limitation of either P or N stimulated SL production and enhanced expression of D10, D17, and D27 and suppressed expression of D3 and D14 in WT roots. Mutation of D10, D27, or D3 caused loss of sensitivity of root response to P and N deficiency. Application of the SL analogue GR24 restored seminal root length and lateral root density in WT and d10 and d27 mutants but not in the d3 mutant, suggesting that SLs were induced by nutrient-limiting conditions and led to changes in rice root growth via D3. Moreover, P or N deficiency or GR24 application reduced the transport of radiolabelled indole-3-acetic acid and the activity of DR5::GUS auxin reporter in WT and d10 and d27 mutants. These findings highlight the role of SLs in regulating rice root development under phosphate and nitrate limitation. The mechanisms underlying this regulatory role involve D3 and modulation of auxin transport from shoots to roots
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Auxin
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|a nitrate
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|a phosphate
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|a rice
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|a root
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|a strigolactone.
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|a Culture Media
|2 NLM
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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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|a Indoleacetic Acids
|2 NLM
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| 650 |
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|a Lactones
|2 NLM
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| 650 |
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|a Nitrates
|2 NLM
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| 650 |
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|a Phosphates
|2 NLM
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| 650 |
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|a Tritium
|2 NLM
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| 650 |
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|a 10028-17-8
|2 NLM
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| 700 |
1 |
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|a Tao, Jinyuan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Shangjun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Huang, Shuangjie
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chen, Si
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Xie, Xiaonan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yoneyama, Koichi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Yali
|e verfasserin
|4 aut
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| 700 |
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|a Xu, Guohua
|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), 22 vom: 07. Dez., Seite 6735-46
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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| 773 |
1 |
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|g volume:65
|g year:2014
|g number:22
|g day:07
|g month:12
|g pages:6735-46
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|u http://dx.doi.org/10.1093/jxb/eru029
|3 Volltext
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|d 65
|j 2014
|e 22
|b 07
|c 12
|h 6735-46
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