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231224s2014 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2013.12.009
|2 doi
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|a pubmed24n0786.xml
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|a (DE-627)NLM235775142
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|a (NLM)24561248
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|a (PII)S0981-9428(13)00433-6
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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 Karthikeyan, Athikkattuvalasu S
|e verfasserin
|4 aut
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| 245 |
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|a Arabidopsis thaliana mutant lpsi reveals impairment in the root responses to local phosphate availability
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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 06.11.2014
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|a Date Revised 03.12.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2014 Elsevier Masson SAS. All rights reserved.
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|a Phosphate (Pi) deficiency triggers local Pi sensing-mediated inhibition of primary root growth and development of root hairs in Arabidopsis (Arabidopsis thaliana). Generation of activation-tagged T-DNA insertion pools of Arabidopsis expressing the luciferase gene (LUC) under high-affinity Pi transporter (Pht1;4) promoter, is an efficient approach for inducing genetic variations that are amenable for visual screening of aberrations in Pi deficiency responses. Putative mutants showing altered LUC expression during Pi deficiency were identified and screened for impairment in local Pi deficiency-mediated inhibition of primary root growth. An isolated mutant was analyzed for growth response, effects of Pi deprivation on Pi content, primary root growth, root hair development, and relative expression levels of Pi starvation-responsive (PSR) genes, and those implicated in starch metabolism and Fe and Zn homeostasis. Pi deprived local phosphate sensing impaired (lpsi) mutant showed impaired primary root growth and attenuated root hair development. Although relative expression levels of PSR genes were comparable, there were significant increases in relative expression levels of IRT1, BAM3 and BAM5 in Pi deprived roots of lpsi compared to those of the wild-type. Better understanding of molecular responses of plants to Pi deficiency or excess will help to develop suitable remediation strategies for soils with excess Pi, which has become an environmental concern. Hence, lpsi mutant will serve as a valuable tool in identifying molecular mechanisms governing adaptation of plants to Pi deficiency
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Activation-tagged T-DNA insertion
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|a Arabidopsis thaliana
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|a Local Pi sensing
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|a Phosphate deficiency
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|a Pht1;4-LUC
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|a lpsi mutant
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|a Arabidopsis Proteins
|2 NLM
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|a Cation Transport Proteins
|2 NLM
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|a IRT1 protein, Arabidopsis
|2 NLM
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|a Phosphates
|2 NLM
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|a Phosphorus
|2 NLM
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|a 27YLU75U4W
|2 NLM
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| 650 |
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|a BAM3 protein, Arabidopsis
|2 NLM
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| 650 |
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|a EC 2.7.11.1
|2 NLM
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| 650 |
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|a Protein Serine-Threonine Kinases
|2 NLM
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| 650 |
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|a EC 2.7.11.1
|2 NLM
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| 700 |
1 |
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|a Jain, Ajay
|e verfasserin
|4 aut
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|a Nagarajan, Vinay K
|e verfasserin
|4 aut
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| 700 |
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|a Sinilal, Bhaskaran
|e verfasserin
|4 aut
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| 700 |
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|a Sahi, Shivendra V
|e verfasserin
|4 aut
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|a Raghothama, Kashchandra G
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant physiology and biochemistry : PPB
|d 1991
|g 77(2014) vom: 14. Apr., Seite 60-72
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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| 773 |
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|g volume:77
|g year:2014
|g day:14
|g month:04
|g pages:60-72
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|u http://dx.doi.org/10.1016/j.plaphy.2013.12.009
|3 Volltext
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|d 77
|j 2014
|b 14
|c 04
|h 60-72
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