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231224s2013 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/ert012
|2 doi
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|a pubmed24n1222.xml
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|a (DE-627)NLM224767720
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|a (NLM)23382552
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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 Marina, María
|e verfasserin
|4 aut
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|a Thermospermine catabolism increases Arabidopsis thaliana resistance to Pseudomonas viridiflava
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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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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 27.08.2013
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|a Date Revised 13.12.2023
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a This work investigated the roles of the tetraamine thermospermine (TSpm) by analysing its contribution to Arabidopsis basal defence against the biotrophic bacterium Pseudomonas viridiflava. The participation of polyamine oxidases (PAOs) in TSpm homeostasis and TSpm-mediated defence was also investigated. Exogenous supply of TSpm, as well as ectopic expression of the TSpm biosynthetic gene ACL5, increased Arabidopsis Col-0 resistance to P. viridiflava, while null acl5 mutants were less resistant than Col-0 plants. The above-mentioned increase in resistance was blocked by the PAO inhibitor SL-11061, thus demonstrating the participation of TSpm oxidation. Analysis of PAO genes expression in transgenic 35S::ACL5 and Col-0 plants supplied with TSpm suggests that PAO 1, 3, and 5 are the main PAOs involved in TSpm catabolism. In summary, TSpm exhibited the potential to perform defensive functions previously reported for its structural isomer Spm, and the relevance of these findings is discussed in the context of ACL5 expression and TSpm concentration in planta. Moreover, this work demonstrates that manipulation of TSpm metabolism modifies plant resistance to pathogens
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Arabidopsis Proteins
|2 NLM
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|a Enzyme Inhibitors
|2 NLM
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|a Spermine
|2 NLM
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|a 2FZ7Y3VOQX
|2 NLM
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|a thermospermine
|2 NLM
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|a 70862-11-2
|2 NLM
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| 650 |
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|a Amine Oxidase (Copper-Containing)
|2 NLM
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| 650 |
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|a EC 1.4.3.21
|2 NLM
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|a Oxidoreductases Acting on CH-NH Group Donors
|2 NLM
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|a EC 1.5.-
|2 NLM
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| 650 |
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|a Putrescine
|2 NLM
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| 650 |
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|a V10TVZ52E4
|2 NLM
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| 700 |
1 |
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|a Sirera, Francisco Vera
|e verfasserin
|4 aut
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| 700 |
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|a Rambla, José L
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Gonzalez, María E
|e verfasserin
|4 aut
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| 700 |
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|a Blázquez, Miguel A
|e verfasserin
|4 aut
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|a Carbonell, Juan
|e verfasserin
|4 aut
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|a Pieckenstain, Fernando L
|e verfasserin
|4 aut
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| 700 |
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|a Ruiz, Oscar A
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 64(2013), 5 vom: 19. März, Seite 1393-402
|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:5
|g day:19
|g month:03
|g pages:1393-402
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|u http://dx.doi.org/10.1093/jxb/ert012
|3 Volltext
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