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231223s2011 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2011.01.018
|2 doi
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|a pubmed25n0686.xml
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|a (DE-627)NLM205817661
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|a (NLM)21316255
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Fu, Guang-Qing
|e verfasserin
|4 aut
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|a Molecular cloning, characterization, and expression of an alfalfa (Medicago sativa L.) heme oxygenase-1 gene, MsHO1, which is pro-oxidants-regulated
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|c 2011
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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
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|2 rdacarrier
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|a Date Completed 07.05.2012
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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 © 2011 Elsevier Masson SAS. All rights reserved.
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|a It has been documented that plant heme oxygenase-1 (HO-1; EC 1.14.99.3) is both development- and stress-regulated, thus it plays a vital role in light signalling and stress responses. In this study, an alfalfa (Medica sativa L.) HO-1 gene MsHO1 was isolated and sequenced. It contains four exons and three introns within genomic DNA sequence and encodes a polypeptide with 283 amino acids. MsHO1 had a conserved HO signature sequence and showed high similarity to other HOs in plants, especially HO-1 isoform. The MsHO1:GFP fusion protein was localized in the chloroplast. Further biochemical activity analysis of mature MsHO1, which was expressed in Escherichia coli, showed that the Vmax was 48.78 nmol biliverdin-IXα (BV) h⁻¹ nmol⁻¹ protein with an apparent Km value for hemin of 2.33 μM, and the optimum Tm and pH were 37 °C and 7.2, respectively. Results of semi-quantitative RT-PCR and western blot showed that the expressions of MsHO1 were higher in alfalfa stems and leaves than those in germinating seeds and roots. Importantly, MsHO1 gene expression and protein level were induced significantly by some pro-oxidant compounds, including hemin and nitric oxide (NO) donor sodium nitroprusside (SNP). In conclusion, MsHO1 may play an important role in oxidative responses
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a DNA, Plant
|2 NLM
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|a Nitric Oxide Donors
|2 NLM
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| 650 |
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|a RNA, Messenger
|2 NLM
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| 650 |
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|a RNA, Plant
|2 NLM
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|a Reactive Oxygen Species
|2 NLM
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|a Recombinant Fusion Proteins
|2 NLM
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|a Nitroprusside
|2 NLM
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| 650 |
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|a 169D1260KM
|2 NLM
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| 650 |
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|a Hemin
|2 NLM
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| 650 |
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|a 743LRP9S7N
|2 NLM
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| 650 |
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|a Heme Oxygenase-1
|2 NLM
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| 650 |
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|a EC 1.14.14.18
|2 NLM
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| 700 |
1 |
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|a Xu, Sheng
|e verfasserin
|4 aut
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1 |
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|a Xie, Yan-Jie
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Han, Bin
|e verfasserin
|4 aut
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| 700 |
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|a Nie, Li
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Shen, Wen-Biao
|e verfasserin
|4 aut
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| 700 |
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|a Wang, Ren
|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 49(2011), 7 vom: 15. Juli, Seite 792-9
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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| 773 |
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|g volume:49
|g year:2011
|g number:7
|g day:15
|g month:07
|g pages:792-9
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|u http://dx.doi.org/10.1016/j.plaphy.2011.01.018
|3 Volltext
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