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231224s2013 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/ert294
|2 doi
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|a pubmed24n0770.xml
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|a (DE-627)NLM231027494
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|a (NLM)24052532
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Effendi, Yunus
|e verfasserin
|4 aut
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| 245 |
1 |
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|a AUXIN-BINDING-PROTEIN1 (ABP1) in phytochrome-B-controlled responses
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|c 2013
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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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| 500 |
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|a Date Completed 23.06.2014
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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 auxin receptor ABP1 directly regulates plasma membrane activities including the number of PIN-formed (PIN) proteins and auxin efflux transport. Red light (R) mediated by phytochromes regulates the steady-state level of ABP1 and auxin-inducible growth capacity in etiolated tissues but, until now, there has been no genetic proof that ABP1 and phytochrome regulation of elongation share a common mechanism for organ elongation. In far red (FR)-enriched light, hypocotyl lengths were larger in the abp1-5 and abp1/ABP1 mutants, but not in tir1-1, a null mutant of the TRANSPORT-INHIBITOR-RESPONSE1 auxin receptor. The polar auxin transport inhibitor naphthylphthalamic acid (NPA) decreased elongation in the low R:FR light-enriched white light (WL) condition more strongly than in the high red:FR light-enriched condition WL suggesting that auxin transport is an important condition for FR-induced elongation. The addition of NPA to hypocotyls grown in R- and FR-enriched light inhibited hypocotyl gravitropism to a greater extent in both abp1 mutants and in phyB-9 and phyA-211 than the wild-type hypocotyl, arguing for decreased phytochrome action in conjunction with auxin transport in abp1 mutants. Transcription of FR-enriched light-induced genes, including several genes regulated by auxin and shade, was reduced 3-5-fold in abp1-5 compared with Col and was very low in abp1/ABP1. In the phyB-9 mutant the expression of these reporter genes was 5-15-fold lower than in Col. In tir1-1 and the phyA-211 mutants shade-induced gene expression was greatly attenuated. Thus, ABP1 directly or indirectly participates in auxin and light signalling
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|a Journal Article
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|a Research Support, N.I.H., Extramural
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|a Research Support, Non-U.S. Gov't
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| 650 |
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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-BINDING PROTEIN1 (ABP1)
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|a early auxin-regulated genes
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|a elongation
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|a gravitropism
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|a phototropism
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|a phytochrome
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|a shade avoidance.
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| 650 |
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|a Arabidopsis Proteins
|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 PHYA protein, Arabidopsis
|2 NLM
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| 650 |
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|a PHYB protein, Arabidopsis
|2 NLM
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| 650 |
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|a Phytochrome A
|2 NLM
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| 650 |
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|a Plant Proteins
|2 NLM
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| 650 |
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|a Receptors, Cell Surface
|2 NLM
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| 650 |
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|a auxin-binding protein 1
|2 NLM
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| 650 |
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|a Phytochrome B
|2 NLM
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| 650 |
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|a 136250-22-1
|2 NLM
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| 700 |
1 |
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|a Jones, Alan M
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Scherer, Günther F E
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 64(2013), 16 vom: 01. Nov., Seite 5065-74
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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| 773 |
1 |
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|g volume:64
|g year:2013
|g number:16
|g day:01
|g month:11
|g pages:5065-74
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| 856 |
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|u http://dx.doi.org/10.1093/jxb/ert294
|3 Volltext
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|a AR
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| 952 |
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|d 64
|j 2013
|e 16
|b 01
|c 11
|h 5065-74
|