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231224s2014 xx |||||o 00| ||eng c |
| 024 |
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|a 10.1111/nph.12484
|2 doi
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|a pubmed24n0769.xml
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|a (DE-627)NLM230689213
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|a (NLM)24015892
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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 Guo, Huijuan
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Elevated CO2 decreases the response of the ethylene signaling pathway in Medicago truncatula and increases the abundance of the pea aphid
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|c 2014
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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 07.07.2014
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|a Date Revised 09.04.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2013 The Authors. New Phytologist © 2013 New Phytologist Trust.
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|a The performance of herbivorous insects is greatly affected by plant nutritional quality and resistance, which are likely to be altered by rising concentrations of atmospheric CO2 . We previously reported that elevated CO2 enhanced biological nitrogen (N) fixation of Medicago truncatula, which could result in an increased supply of amino acids to the pea aphid (Acyrthosiphon pisum). The current study examined the N nutritional quality and aphid resistance of sickle, an ethylene-insensitive mutant of M. truncatula with supernodulation, and its wild-type control A17 under elevated CO2 in open-top field chambers. Regardless of CO2 concentration, growth and amino acid content were greater and aphid resistance was lower in sickle than in A17. Elevated CO2 up-regulated N assimilation and transamination-related enzymes activities and increased phloem amino acids in both genotypes. Furthermore, elevated CO2 down-regulated expression of 1-amino-cyclopropane-carboxylic acid (ACC), sickle gene (SKL) and ethylene response transcription factors (ERF) genes in the ethylene signaling pathway of A17 when infested by aphids and decreased resistance against aphids in terms of lower activities of superoxide dismutase (SOD), peroxidase (POD), and polyphenol oxidase (PPO). Our results suggest that elevated CO2 suppresses the ethylene signaling pathway in M. truncatula, which results in an increase in plant nutritional quality for aphids and a decrease in plant resistance against aphids
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Acyrthosiphon pisum (pea aphid)
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|a Medicago truncatula
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|a elevated CO2
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|a ethylene
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|a nitrogen (N) metabolism
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|a resistance
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|a Amino Acids
|2 NLM
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| 650 |
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|a Ethylenes
|2 NLM
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| 650 |
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|a Plant Growth Regulators
|2 NLM
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| 650 |
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|a Plant Proteins
|2 NLM
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| 650 |
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|a Transcription Factors
|2 NLM
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| 650 |
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|a Carbon Dioxide
|2 NLM
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| 650 |
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7 |
|a 142M471B3J
|2 NLM
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| 650 |
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|a ethylene
|2 NLM
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| 650 |
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|a 91GW059KN7
|2 NLM
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| 650 |
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|a Nitrogen
|2 NLM
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| 650 |
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|a N762921K75
|2 NLM
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| 700 |
1 |
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|a Sun, Yucheng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Yuefei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Xianghui
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Wenhao
|e verfasserin
|4 aut
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| 700 |
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|a Ge, Feng
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 201(2014), 1 vom: 09. Jan., Seite 279-291
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
1 |
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|g volume:201
|g year:2014
|g number:1
|g day:09
|g month:01
|g pages:279-291
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| 856 |
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|u http://dx.doi.org/10.1111/nph.12484
|3 Volltext
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|a AR
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|d 201
|j 2014
|e 1
|b 09
|c 01
|h 279-291
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