OsPT2, a phosphate transporter, is involved in the active uptake of selenite in rice

OsPT2, a phosphate transporter, is involved in the active uptake of selenite in rice

© 2013 The Authors. New Phytologist © 2013 New Phytologist Trust.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 201(2014), 4 vom: 04. März, Seite 1183-1191
1. Verfasser: Zhang, Lianhe (VerfasserIn)
Weitere Verfasser: Hu, Bin, Li, Wei, Che, Ronghui, Deng, Kun, Li, Hua, Yu, Feiyan, Ling, Hongqing, Li, Youjun, Chu, Chengcai
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2014
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Research Support, Non-U.S. Gov't molecular mechanism phosphate transporter rice (Oryza sativa) selenite uptake selenium (Se) Phosphate Transport Proteins Phosphates Plant Proteins mehr... RNA, Messenger Symporters Carbonyl Cyanide m-Chlorophenyl Hydrazone 555-60-2 Sulfur 70FD1KFU70 Hydrogen 7YNJ3PO35Z Selenious Acid F6A27P4Q4R Selenium H6241UJ22B 2,4-Dinitrophenol Q13SKS21MN
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245 1 0 |a OsPT2, a phosphate transporter, is involved in the active uptake of selenite in rice 
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520 |a © 2013 The Authors. New Phytologist © 2013 New Phytologist Trust. 
520 |a • Selenite is a predominant form of selenium (Se) available to plants, especially in anaerobic soils, but the molecular mechanism of selenite uptake by plants is not well understood. • ltn1, a rice mutant previously shown to have increased phosphate (Pi) uptake, was found to exhibit higher selenite uptake than the wild-type in both concentration- and time-dependent selenite uptake assays. Respiratory inhibitors significantly inhibited selenite uptake in the wildtype and the ltn1 mutant, indicating that selenite uptake was coupled with H(+) and energy-dependent. Selenite uptake was greatly enhanced under Pi-starvation conditions, suggesting that Pi transporters are involved in selenite uptake. • OsPT2, the most abundantly expressed Pi transporter in the roots, is also significantly up-regulated in ltn1 and dramatically induced by Pi starvation. OsPT2-overexpressing and knockdown plants displayed significantly increased and decreased rates of selenite uptake, respectively, suggesting that OsPT2 plays a crucial role in selenite uptake. Se content in rice grains also increased significantly in OsPT2-overexpressing plants. • These data strongly demonstrate that selenite and Pi share similar uptake mechanisms and that OsPT2 is involved in selenite uptake, which provides a potential strategy for breeding Se-enriched rice varieties 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a molecular mechanism 
650 4 |a phosphate transporter 
650 4 |a rice (Oryza sativa) 
650 4 |a selenite uptake 
650 4 |a selenium (Se) 
650 7 |a Phosphate Transport Proteins  |2 NLM 
650 7 |a Phosphates  |2 NLM 
650 7 |a Plant Proteins  |2 NLM 
650 7 |a RNA, Messenger  |2 NLM 
650 7 |a Symporters  |2 NLM 
650 7 |a Carbonyl Cyanide m-Chlorophenyl Hydrazone  |2 NLM 
650 7 |a 555-60-2  |2 NLM 
650 7 |a Sulfur  |2 NLM 
650 7 |a 70FD1KFU70  |2 NLM 
650 7 |a Hydrogen  |2 NLM 
650 7 |a 7YNJ3PO35Z  |2 NLM 
650 7 |a Selenious Acid  |2 NLM 
650 7 |a F6A27P4Q4R  |2 NLM 
650 7 |a Selenium  |2 NLM 
650 7 |a H6241UJ22B  |2 NLM 
650 7 |a 2,4-Dinitrophenol  |2 NLM 
650 7 |a Q13SKS21MN  |2 NLM 
700 1 |a Hu, Bin  |e verfasserin  |4 aut 
700 1 |a Li, Wei  |e verfasserin  |4 aut 
700 1 |a Che, Ronghui  |e verfasserin  |4 aut 
700 1 |a Deng, Kun  |e verfasserin  |4 aut 
700 1 |a Li, Hua  |e verfasserin  |4 aut 
700 1 |a Yu, Feiyan  |e verfasserin  |4 aut 
700 1 |a Ling, Hongqing  |e verfasserin  |4 aut 
700 1 |a Li, Youjun  |e verfasserin  |4 aut 
700 1 |a Chu, Chengcai  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t The New phytologist  |d 1979  |g 201(2014), 4 vom: 04. März, Seite 1183-1191  |w (DE-627)NLM09818248X  |x 1469-8137  |7 nnns 
773 1 8 |g volume:201  |g year:2014  |g number:4  |g day:04  |g month:03  |g pages:1183-1191 
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