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ÂÛÎÄÌâÄ¿£ºFerric reduction oxidase 2 gene from Pyrus betulifolia Bunge is regulated by iron deficiency and auxin
     ÆÚ¿¯Ãû³Æ£ºCanadian Journal of Plant Science
     D O I  ºÅ£º10.1139/cjps-2016-0213

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494118250(Ðľ²_ÒÀÈ»´ú·¢): ½ð±Ò+10, ¸ÐлӦÖú 2017-10-26 08:56:52
Ðľ²_ÒÀÈ»: LS-EPI+1, ¸ÐлӦÖú 2017-10-26 08:56:58
Ferric reduction oxidase 2 gene from Pyrus betulifolia Bunge is regulated by iron deficiency and auxin


×÷Õß:Li, X (Li, X.)[ 1,2,3 ] ; Gao, Y (Gao, Y.)[ 1,4 ] ; Jian, Q (Jian, Q.)[ 1 ] ; Zhang, Z (Zhang, Z.)[ 1 ] ; Liu, S (Liu, S.)[ 1 ] ; Chen, F (Chen, F.)[ 3 ] ; Zhang, J (Zhang, J.)[ 1,2 ]




CANADIAN JOURNAL OF PLANT SCIENCE



¾í: 97

ÆÚ: 4

Ò³: 569-579

DOI: 10.1139/cjps-2016-0213

³ö°æÄê: AUG 2017

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ÕªÒª

Pyrus betulifolia Bunge belongs to the woody plant family and is an ideal model for studying molecular strategies of iron acquisition and metabolism in strategy I plants. Using polymerase chain reaction amplification technology, a gene encoding a putative ferric chelate reductase (FCR) protein was isolated from P. betulifolia and designated as PbFRO2. This gene was 2166 bp in length with an open reading frame encoding a protein of 721 amino acids. A hidden Markov model for topology prediction of PbFRO2 suggested that there were 10 transmembrane regions (I-X) connected by nine loops. Phylogenetic analyses demonstrated that PbFRO2 had the highest homology with Malus xiaojinensis Cheng & Jiang. Iron starvation induced significant increase in root FCR activity and PbFRO2 expression. The split-root experiment demonstrated that Fe limitation in one portion of the root system triggered significant up-regulation of the PbFRO2 expression in the Fe-sufficient part, suggesting that the PbFRO2 expression was induced by systemic signals. Furthermore, the addition of a-naphthaleneacetic acid was found to strengthen the Fe deficiency-caused up-regulation of the PbFRO2 expression in the roots. By contrast, 1-naphthylphthalamic acid application blocked up-regulation of the PbFRO2 expression. The results indicated that Fe deficiency-induced alterations of the PbFRO2 expression were mediated by auxin.


¹Ø¼ü´Ê

×÷Õ߹ؼü´Êyrus betulifolia Bunge; PbFRO2; iron deficiency; auxin; systemic signal

KeyWords Plus:LONG-DISTANCE SIGNALS; EPIDERMAL-CELL FATE; MALUS-XIAOJINENSIS; FE-DEFICIENCY; CHELATE REDUCTASE; CUCUMBER PLANTS; H+-ATPASE; RESPONSES; ARABIDOPSIS; TOLERANCE


×÷ÕßÐÅÏ¢

ͨѶ×÷ÕßµØÖ·: Zhang, J (ͨѶ×÷Õß)





Agr Univ Hebei, Coll Hort, Baoding 071001, Hebei, Peoples R China.



ͨѶ×÷ÕßµØÖ·: Zhang, J (ͨѶ×÷Õß)


      

Pear Engn & Technol Res Ctr Hebei Prov, Baoding 071001, Hebei, Peoples R China.



µØÖ·:





[ 1 ] Agr Univ Hebei, Coll Hort, Baoding 071001, Hebei, Peoples R China





      

[ 2 ] Pear Engn & Technol Res Ctr Hebei Prov, Baoding 071001, Hebei, Peoples R China



      

[ 3 ] Xingtai Acad Agr Sci, Inst Forestry & Fruits, Xingtai 054000, Hebei, Peoples R China



      

[ 4 ] Agr Bur Qiaoxi Dist, Xingtai 054000, Hebei, Peoples R China



µç×ÓÓʼþµØÖ·:zhjg2358@sina.com


»ù½ð×ÊÖúÖÂл



»ù½ð×ÊÖú»ú¹¹

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China Agriculture Research System


CARS-29-13

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CANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS, 65 AURIGA DR, SUITE 203, OTTAWA, ON K2E 7W6, CANADA


Àà±ð / ·ÖÀà

Ñо¿·½Ïò:Agriculture; Plant Sciences

Web of Science Àà±ð:Agronomy; Plant Sciences


ÎÄÏ×ÐÅÏ¢

ÎÄÏ×ÀàÐÍ:Article

ÓïÖÖ:English

Èë²ØºÅ: WOS:000406718700002

ISSN: 0008-4220

eISSN: 1918-1833


ÆäËûÐÅÏ¢

IDS ºÅ: FC3DO

Web of Science ºËÐĺϼ¯ÖÐµÄ "ÒýÓõIJο¼ÎÄÏ×": 42

Web of Science ºËÐĺϼ¯ÖÐµÄ "±»ÒýƵ´Î": 0

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494118250

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2Â¥: Originally posted by baiyuefei at 2017-10-17 13:40:50
Ferric reduction oxidase 2 gene from Pyrus betulifolia Bunge is regulated by iron deficiency and auxin


×÷Õß:Li, X (Li, X.) ; Gao, Y (Gao, Y.) ; Jian, Q (Jian, Q.) ; Zhang, Z (Zhang, Z.) ; Liu,  ...

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