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231224s2012 xx |||||o 00| ||eng c |
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|a 10.1111/j.1469-8137.2012.04208.x
|2 doi
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|a pubmed24n0729.xml
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|a (NLM)22731664
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|a DE-627
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|c DE-627
|e rakwb
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|a eng
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|a Qi, Linlin
|e verfasserin
|4 aut
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|a Arabidopsis thaliana plants differentially modulate auxin biosynthesis and transport during defense responses to the necrotrophic pathogen Alternaria brassicicola
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|c 2012
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 04.12.2012
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|a Date Revised 16.04.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2012 The Authors. New Phytologist © 2012 New Phytologist Trust.
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|a Although the role of auxin in biotrophic pathogenesis has been extensively studied, relatively little is known about its role in plant resistance to necrotrophs. Arabidopsis thaliana mutants defective in different aspects of the auxin pathway are generally more susceptible than wild-type plants to the necrotrophic pathogen Alternaria brassicicola. We show that A. brassicicola infection up-regulates auxin biosynthesis and down-regulates the auxin transport capacities of infected plants, these effects being partially dependent on JA signaling. We also show that these effects of A. brassicicola infection together lead to an enhanced auxin response in host plants. Application of IAA and MeJA together synergistically induces the expression of defense marker genes PDF1.2 (PLANT DEFENSIN 1.2) and HEL (HEVEIN-LIKE), suggesting that enhancement of JA-dependent defense signaling may be part of the auxin-mediated defense mechanism involved in resistance to necrotrophic pathogens. Our results provide molecular evidence supporting the hypothesis that JA and auxin interact positively in regulating plant resistance to necrotrophic pathogens and that activation of auxin signaling by JA may contribute to plant resistance to necrotrophic 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
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|a Cyclopentanes
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|a Indoleacetic Acids
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|a Oxylipins
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|a 6RI5N05OWW
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|a Yan, Jiao
|e verfasserin
|4 aut
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|a Li, Yanan
|e verfasserin
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|a Jiang, Hongling
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|a Sun, Jiaqiang
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|a Chen, Qian
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|a Li, Haoxuan
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|a Chu, Jinfang
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|a Yan, Cunyu
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|a Sun, Xiaohong
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|a Yu, Yuanjie
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|a Li, Changbao
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|a Li, Chuanyou
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|i Enthalten in
|t The New phytologist
|d 1979
|g 195(2012), 4 vom: 16. Sept., Seite 872-882
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
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|g volume:195
|g year:2012
|g number:4
|g day:16
|g month:09
|g pages:872-882
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|u http://dx.doi.org/10.1111/j.1469-8137.2012.04208.x
|3 Volltext
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