Medicago truncatula ecotypes A17 and R108 differed in their response to iron deficiency

doi:10.1016/j.jplph.2013.12.018

	Medicago truncatula ecotypes A17 and R108 differed in their response to iron deficiency
	Li, Gen ; Wang, Baolan ; Tian, Qiuying ; Wang, Tianzuo ; Zhang, Wen-Hao
	2014
发表期刊	JOURNAL OF PLANT PHYSIOLOGY
ISSN	0176-1617
卷号	171 期号:8 页码:639-647
摘要	Medicago truncatula Gaertn is a model legume species with a wide genetic diversity. To evaluate the responses of the two M. truncatula ecotypes, the effect of Fe deficiency on ecotype A17 and ecotype R108, which have been widely used in physiological and molecular studies, was investigated. A greater reduction in shoot Fe concentration of R108 plants than that of A17 plants was observed under Fe-deficient conditions. Exposure to Fe-deficient medium led to a greater increase in ferric chelate reductase ( FCR) activity in roots of A17 than those of R108 plants, while expression of genes encoding FCR in roots of A17 and R108 plants was similarly up-regulated by Fe deficiency. Exposure of A17 plants to Fe-deficient medium evoked an ethylene evolution from roots, while the same treatment had no effect on ethylene evolution from R108 roots. There was a significant increase in expression of MtIRT encoding a Fe transporter in A17, but not in R108 plants, upon exposure to Fe-deficient medium. Transcripts of MtFRD3 that is responsible for loading of iron chelator citrate into xylem were up-regulated by Fe deficiency in A17, but not in R108 plants. These results suggest that M. truncatula ecotypes A17 and R108 differed in their response and adaptation to Fe deficiency, and that ethylene may play an important role in regulation of greater tolerance of A17 plant to Fe deficiency. These findings provide important clues for further elucidation of molecular mechanism by which legume plants respond and adapt to low soil Fe availability. (C) 2014 Elsevier GmbH. All rights reserved.
关键词	Medicago truncatula Ecotype A17 Ecotype R108 Fe deficiency Ferric chelate reductase activity
学科领域	Plant Sciences
DOI	10.1016/j.jplph.2013.12.018
收录类别	SCI
语种	英语
WOS关键词	CUCUMBER CUCUMIS-SATIVUS ; GENE-EXPRESSION ; CHELATE REDUCTASE ; STRESS RESPONSES ; ARABIDOPSIS ; TRANSPORTER ; ETHYLENE ; MODEL ; IDENTIFICATION ; TRAFFICKING
WOS研究方向	Plant Sciences
WOS记录号	WOS:000345634000011
出版者	ELSEVIER GMBH
文献子类	Article
出版地	MUNICH
EISSN	1618-1328
资助机构	National Natural Science Foundation of China [31101594, 31272234] ; State Key Laboratory of Vegetation and Environmental Change
作者邮箱	whzhang@ibcas.ac.cn
引用统计	被引频次：14[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/2S10CLM1/27260
专题	植被与环境变化国家重点实验室
作者单位	1.[Li, Gen 2.Wang, Baolan 3.Tian, Qiuying 4.Wang, Tianzuo 5.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 6.Chinese Acad Sci, Beijing Inst Life Sci, Res Network Global Change Biol, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Li, Gen,Wang, Baolan,Tian, Qiuying,et al. Medicago truncatula ecotypes A17 and R108 differed in their response to iron deficiency[J]. JOURNAL OF PLANT PHYSIOLOGY,2014,171(8):639-647.
APA	Li, Gen,Wang, Baolan,Tian, Qiuying,Wang, Tianzuo,&Zhang, Wen-Hao.(2014).Medicago truncatula ecotypes A17 and R108 differed in their response to iron deficiency.JOURNAL OF PLANT PHYSIOLOGY,171(8),639-647.
MLA	Li, Gen,et al."Medicago truncatula ecotypes A17 and R108 differed in their response to iron deficiency".JOURNAL OF PLANT PHYSIOLOGY 171.8(2014):639-647.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
24709157.pdf（1555KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览请求全文