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DE-627 |
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20231223083834.0 |
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231223s2005 xx ||||| 00| ||eng c |
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|a pubmed24n0531.xml
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|a (DE-627)NLM159287871
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|a (NLM)16325410
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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 |
1 |
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|a Schenk, Peer M
|e verfasserin
|4 aut
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| 245 |
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|a The SEN1 gene of Arabidopsis is regulated by signals that link plant defence responses and senescence
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|c 2005
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|a Band
|b nc
|2 rdacarrier
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|a Date Completed 02.03.2006
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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 Plant defence and senescence share many similarities as evidenced by extensive co-regulation of many genes during these responses. To better understand the nature of signals that are common to plant defence and senescence, we studied the regulation of SEN1 encoding a senescence-associated protein during plant defence responses in Arabidopsis. Pathogen inoculations and treatments with defence-related chemical signals, salicylic acid and methyl jasmonate induced changes in SEN1 transcript levels. Analysis of transgenic plants expressing the SEN1 promoter fused to uidA reporter gene confirmed the responsiveness of the SEN1 promoter to defence- and senescence-associated signals. Expression analysis of SEN1 in a number of defence signalling mutants indicated that activation of this gene by pathogen occurs predominantly via the salicylic and jasmonic acid signalling pathways, involving the functions of EDS5, NPR1 and JAR1. In addition, in the absence of pathogen challenge, the cpr5/hys1 mutant showed elevated SEN1 expression and displayed an accelerated senescence response following inoculation with the necrotrophic fungal pathogen Fusarium oxysporum. Although the analysis of the sen1-1 knock-out mutant did not reveal any obvious role for this gene in defence or senescence-associated events, our results presented here show that SEN1 is regulated by signals that link plant defence and senescence responses and thus represents a useful marker gene to study the overlap between these two important physiological events
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|a Journal Article
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|a Arabidopsis Proteins
|2 NLM
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|a DNA Primers
|2 NLM
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|a RNA, Messenger
|2 NLM
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|a Sen1 protein, Arabidopsis
|2 NLM
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| 700 |
1 |
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|a Kazan, Kemal
|e verfasserin
|4 aut
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| 700 |
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|a Rusu, Anca G
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Manners, John M
|e verfasserin
|4 aut
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| 700 |
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|a Maclean, Donald J
|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 43(2005), 10-11 vom: 01. Okt., Seite 997-1005
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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| 773 |
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|g volume:43
|g year:2005
|g number:10-11
|g day:01
|g month:10
|g pages:997-1005
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|j 2005
|e 10-11
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|h 997-1005
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