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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(sunshan4379´ú·¢): ½ð±Ò+10 2017-09-23 19:58:26
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494118250(sunshan4379´ú·¢): ½ð±Ò+10 2017-09-23 19:58:26
sunshan4379: LS-EPI+1, ¸ÐлӦÖú! 2017-09-23 19:58:37
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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 ²é¿´ÆÚ¿¯Ó°Ïì CANADIAN JOURNAL OF PLANT SCIENCE ³ö°æÉÌ CANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS, 65 AURIGA DR, SUITE 203, OTTAWA, ON K2E 7W6, CANADA ISSN: 0008-4220 eISSN: 1918-1833 Ñо¿ÁìÓò Agriculture Plant Sciences 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´Ê yrus 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. ÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ Hebei Agricultural University ͨ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 ÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ Hebei Agricultural University [ 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 ÊÚȨºÅ China Agriculture Research System CARS-29-13 ²é¿´»ù½ð×ÊÖúÐÅÏ¢¹Ø±Õ»ù½ð×ÊÖúÐÅÏ¢ The financial support from China Agriculture Research System (CARS-29-13) is gratefully acknowledged. ³ö°æÉÌ 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 JCR® Àà±ð JCR ·ÖÇø AGRONOMY Q3 PLANT SCIENCES Q3 Êý¾ÝÀ´×ÔµÚ 2016 °æ Journal Citation Reports |
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yrus betulifolia Bunge; PbFRO2; iron deficiency; auxin; systemic signal