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Title of Journal: Plant Cell Rep

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Abbravation: Plant Cell Reports

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Springer-Verlag

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DOI

10.1007/s10948-016-3595-y

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1432-203X

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Ectopic expression of a rice protein phosphatase 2

Authors: Xuebo Hu Huijuan Zhang Guojun Li Yuxia Yang Zhong Zheng Fengming Song
Publish Date: 2009/04/19
Volume: 28, Issue: 6, Pages: 985-995
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Abstract

Protein phosphatase 2Cs PP2Cs have been demonstrated to play critical roles in regulation of plant growth/development abscisic acid signaling pathway and adaptation to environmental stresses Here we report the cloning and molecular characterization of a novel rice protein phosphatase 2C gene OsBIPP2C2 Oryza sativa L BTHinduced protein phosphatase 2C 2 OsBIPP2C2 has three alternatively spliced transcripts and the largest transcript OsBIPP2C2a encodes a 380 aa protein containing all 11 conserved catalytic subdomains of PP2Cs Expression of OsBIPP2C2a was significantly induced by benzothiadiazole BTH one of defenserelated signal molecules in plants Expression of OsBIP2C2a was induced by infection with the blast fungus Magnaporthe grisea and the pathogeninduced expression of OsBIPP2C2a in BTHtreated rice seedlings was much earlier and stronger than those in watertreated seedlings Overexpression of OsBIPP2C2a in transgenic tobacco plants resulted in increased disease resistance against tobacco mosaic virus and Phytophthora parasitica var nicotianae Importantly the OsBIPP2C2aoverexpressing transgenic tobacco plants showed constitutive expression of defenserelated genes These results suggest that OsBIPP2C2a may play an important role in disease resistance through activation of defense responseWe are grateful to Dr Xueping Zhou Institute of Biotechnology Zhejiang University for TMV samples and Mr Rongyao Chai Zhejiang Academy of Agricultural Science for the Magnaporthe grisea isolate 8514B1 This study was supported by projects from National Natural Science Foundation of China grants no 30771399 National 863 Project 2007AA10Z140 and the PhD Programs Foundation of Ministry of Education of China No 20070335111

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