Elevated CO2 decreases the response of the ethylene signaling pathway in Medicago truncatula and increases the abundance of the pea aphid

doi:10.1111/nph.12484

	Elevated CO2 decreases the response of the ethylene signaling pathway in Medicago truncatula and increases the abundance of the pea aphid
	Guo, Huijuan 1; Sun, Yucheng ; Li, Yuefei ; Liu, Xianghui ; Zhang, Wenhao2,3 ; Ge, Feng 3
	2014
发表期刊	NEW PHYTOLOGIST
ISSN	0028-646X
卷号	201 期号:1 页码:279-291
摘要	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.
关键词	Acyrthosiphon pisum (pea aphid) elevated CO2 ethylene Medicago truncatula nitrogen (N) metabolism resistance
学科领域	Plant Sciences
DOI	10.1111/nph.12484
收录类别	SCI
语种	英语
WOS关键词	CARBON-DIOXIDE ; GLUTAMATE SYNTHASE ; MYZUS-PERSICAE ; LOLIUM-PERENNE ; PLANT-TISSUES ; NODULE NUMBER ; HOST PLANTS ; GLYCINE-MAX ; PHOTOSYNTHESIS ; ARABIDOPSIS
WOS研究方向	Plant Sciences
WOS记录号	WOS:000327348800026
出版者	WILEY
文献子类	Article
出版地	HOBOKEN
EISSN	1469-8137
资助机构	'National Basic Research Program of China' (973 Program) [2012CB114103] ; National Nature Science Fund of China [31170390, 31000854, 31221091]
作者邮箱	sunyc@ioz.ac.cn ; gef@ioz.ac.cn
作品OA属性	Bronze
引用统计	被引频次：57[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/27157
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Zool, State Key Lab Integrated Management Pest Insects, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 4.Chinese Acad Sci, Beijing Inst Life Sci, Res Network Global Change Biol, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Guo, Huijuan,Sun, Yucheng,Li, Yuefei,et al. Elevated CO2 decreases the response of the ethylene signaling pathway in Medicago truncatula and increases the abundance of the pea aphid[J]. NEW PHYTOLOGIST,2014,201(1):279-291.
APA	Guo, Huijuan,Sun, Yucheng,Li, Yuefei,Liu, Xianghui,Zhang, Wenhao,&Ge, Feng.(2014).Elevated CO2 decreases the response of the ethylene signaling pathway in Medicago truncatula and increases the abundance of the pea aphid.NEW PHYTOLOGIST,201(1),279-291.
MLA	Guo, Huijuan,et al."Elevated CO2 decreases the response of the ethylene signaling pathway in Medicago truncatula and increases the abundance of the pea aphid".NEW PHYTOLOGIST 201.1(2014):279-291.

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