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231224s2015 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/erv199
|2 doi
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|a pubmed24n0829.xml
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|a (DE-627)NLM248763954
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|a (NLM)25948703
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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 Xu, Tao
|e verfasserin
|4 aut
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|a Solanum lycopersicum IAA15 functions in the 2,4-dichlorophenoxyacetic acid herbicide mechanism of action by mediating abscisic acid signalling
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|c 2015
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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 28.03.2016
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|a Date Revised 07.12.2022
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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. All rights reserved. For permissions, please email: journals.permissionsoup.com.
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|a 2,4-Dichlorophenoxyacetic acid (2,4-D), an important plant growth regulator, is the herbicide most commonly used worldwide to control weeds. However, broad-leaf fruits and vegetables are extremely sensitive to herbicides, which can cause damage and result in lost crops when applied in a manner inconsistent with the directions. Despite detailed knowledge of the mechanism of 2,4-D, the regulation of auxin signalling is still unclear. For example, although the major mediators of auxin signalling, including auxin/indole acetic acid (AUX/IAA) proteins and auxin response factors (ARFs), are known to mediate auxinic herbicides, the underlying mechanisms are still unclear. In this study, the effects of 2,4-D on AUX/IAA gene expression in tomato were investigated, and the two most notably up-regulated genes, SlIAA15 and SlIAA29, were selected for further study. Western blotting revealed the substantial accumulation of both SlIAA15 and SlIAA29, and the expression levels of the corresponding genes were increased following abscisic acid (ABA) and ethylene treatment. Overexpressing SlIAA15, but not SlIAA29, induced a 2,4-D herbicide damage phenotype. The 35S::SlIAA15 line exhibited a strong reduction in leaf stomatal density and altered expression of some R2R3 MYB genes that are putatively involved in the regulation of stomatal differentiation. Further study revealed that root elongation in 35S::SlIAA15 was sensitive to ABA treatment, and was most probably due to the altered expression of an ABA signal transduction gene. In addition, the altered auxin sensitivities of SlIAA15 transformants were also explored. These results suggested that SlIAA15 plays an important role in determining the effects of the herbicide 2,4-D
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a 2,4-dichlorophenoxyacetic acid (2,4-D)
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|a ABA
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|a AUX/IAA
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|a auxin
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|a herbicide
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|a stoma density
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|a tomato.
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|a Herbicides
|2 NLM
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|a Plant Proteins
|2 NLM
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|a 2,4-Dichlorophenoxyacetic Acid
|2 NLM
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| 650 |
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|a 2577AQ9262
|2 NLM
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| 650 |
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|a Abscisic Acid
|2 NLM
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| 650 |
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|a 72S9A8J5GW
|2 NLM
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| 700 |
1 |
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|a Wang, Yanling
|e verfasserin
|4 aut
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| 700 |
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|a Liu, Xin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Gao, Song
|e verfasserin
|4 aut
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| 700 |
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|a Qi, Mingfang
|e verfasserin
|4 aut
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| 700 |
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|a Li, Tianlai
|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), 13 vom: 07. Juli, Seite 3977-90
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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| 773 |
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|g volume:66
|g year:2015
|g number:13
|g day:07
|g month:07
|g pages:3977-90
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|u http://dx.doi.org/10.1093/jxb/erv199
|3 Volltext
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