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20231225190012.0 |
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231225s2001 xx |||||o 00| ||eng c |
| 024 |
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|a 10.1046/j.1469-8137.2001.00017.x
|2 doi
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5 |
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|a pubmed24n1080.xml
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|a (DE-627)NLM324292201
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|a (NLM)33874627
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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 Marini, Francesca
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Polyamine metabolism is upregulated in response to tobacco mosaic virus in hypersensitive, but not in susceptible, tobacco
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| 264 |
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|c 2001
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| 336 |
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|a Text
|b txt
|2 rdacontent
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| 337 |
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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 Revised 20.04.2021
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a • Change is reported in the biosynthetic and oxidative activity of hypersensitive (NN) and susceptible (nn) tobacco (Nicotiana tabacum) plants in response to tobacco mosaic virus (TMV). • Mature leaves of nn and NN tobacco were collected over 0-72 h as uninoculated controls or after inoculation with TMV or phosphate buffer (mock-inoculation). The polyamine response to inoculation was analysed by measuring activity and gene expression of S-adenosylmethionine decarboxylase (SAMDC), arginine-(ADC) and ornithine decarboxylases (ODC); incorporation of labelled putrescine; and activity of diamine oxidase (DAO). • In NN leaves SAMDC activity and transcript levels, and DAO activity increased in the TMV-inoculated plants but not in the other treatments; a two-fold increase in DAO activity was seen after 72 h. Both ADC and ODC activity increased in NN leaves at 72 h in TMV-inoculated plants; ADC mRNA increased with activity. The increase in SAMDC mRNA (24 h) preceded the rise in activity (72 h). [3 H]putrescine added to NN leaves led to enhanced label recovery and incorporation into spermidine and spermine in TMV-inoculated plants. No significant changes in biosynthetic or oxidative activity occurred in nn plants. • After TMV inoculation, NN, unlike nn, tobacco plants upgrade polyamine synthesis and oxidation; this leads to changes in cellular components which might induce programmed cell death
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| 650 |
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4 |
|a Journal Article
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| 650 |
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4 |
|a ornithine decarboxylase (ODC)
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| 650 |
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4 |
|a Nicotiana tabacum (tobacco)
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| 650 |
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4 |
|a S-adenosylmethionine decarboxylase (SAMDC)
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| 650 |
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4 |
|a arginine decarboxylase (ADC)
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| 650 |
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4 |
|a diamine oxidase (DAO)
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| 650 |
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4 |
|a hypersensitive response (HR)
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| 650 |
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4 |
|a polyamines
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| 650 |
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4 |
|a tobacco mosaic virus (TMV)
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| 700 |
1 |
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|a Betti, Lucietta
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Scaramagli, Sonia
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Biondi, Stefania
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Torrigiani, Patrizia
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t The New phytologist
|d 1979
|g 149(2001), 2 vom: 20. Feb., Seite 301-309
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
1 |
8 |
|g volume:149
|g year:2001
|g number:2
|g day:20
|g month:02
|g pages:301-309
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| 856 |
4 |
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|u http://dx.doi.org/10.1046/j.1469-8137.2001.00017.x
|3 Volltext
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|d 149
|j 2001
|e 2
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|h 301-309
|