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231224s2015 xx |||||o 00| ||eng c |
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|a 10.1016/j.plantsci.2015.05.011
|2 doi
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|a pubmed24n0833.xml
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|a (DE-627)NLM250100681
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|a (NLM)26089154
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|a (PII)S0168-9452(15)00136-3
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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 Sharma, Gunjan
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Rice OsiSAP7 negatively regulates ABA stress signalling and imparts sensitivity to water-deficit stress in Arabidopsis
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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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| 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 08.03.2016
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.
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|a Stress associated protein (SAP) genes in plants regulate abiotic stress responses. SAP gene family consists of 18 members in rice. Although their abiotic stress responsiveness is well established, the mechanism of their action is poorly understood. OsiSAP7 was chosen to investigate the mechanism of its action based on the dual nature of its sub-cellular localization preferentially in the nucleus or sub-nuclear speckles upon transient expression in onion epidermal cells. Its expression was down-regulated in rice seedlings under abiotic stresses. OsiSAP7 was localized evenly in the nucleus under unstressed conditions and in sub-nuclear speckles on MG132 treatment. OsiSAP7 exhibits E3 ubiquitin ligase activity in vitro. Abiotic stress responses of OsiSAP7 were assessed by its overexpression in Arabidopsis under the control of a stress inducible promoter rd29A. Stress response assessment was done at seed germination and advanced stages of development. Transgenics were ABA insensitive at seed germination stage and sensitive to water-deficit stress at advanced stage as compared to wild type (WT). They were also impaired in ABA and stress-responsive gene expression. Our study suggests that OsiSAP7 acts as a negative regulator of ABA and water-deficit stress signalling by acting as an E3 ubiquitin ligase
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a A20/AN1
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|a Abscisic acid
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|a OsiSAP7
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|a Stress associated protein (SAP)
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|a Sub-nuclear body
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|a Zinc-finger
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|a Plant Growth Regulators
|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 Abscisic Acid
|2 NLM
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| 650 |
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|a 72S9A8J5GW
|2 NLM
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| 650 |
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|a Ubiquitin-Protein Ligases
|2 NLM
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| 650 |
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|a EC 2.3.2.27
|2 NLM
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| 700 |
1 |
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|a Giri, Jitender
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Tyagi, Akhilesh K
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant science : an international journal of experimental plant biology
|d 1985
|g 237(2015) vom: 08. Aug., Seite 80-92
|w (DE-627)NLM098174193
|x 1873-2259
|7 nnns
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| 773 |
1 |
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|g volume:237
|g year:2015
|g day:08
|g month:08
|g pages:80-92
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|u http://dx.doi.org/10.1016/j.plantsci.2015.05.011
|3 Volltext
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|d 237
|j 2015
|b 08
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|h 80-92
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