Guard cell hydrogen peroxide and nitric oxide mediate elevated CO2 -induced stomatal movement in tomato

Guard cell hydrogen peroxide and nitric oxide mediate elevated CO2 -induced stomatal movement in tomato

© 2015 The Authors. New Phytologist © 2015 New Phytologist Trust.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 208(2015), 2 vom: 07. Okt., Seite 342-53
1. Verfasser: Shi, Kai (VerfasserIn)
Weitere Verfasser: Li, Xin, Zhang, Huan, Zhang, Guanqun, Liu, Yaru, Zhou, Yanhong, Xia, Xiaojian, Chen, Zhixiang, Yu, Jingquan
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2015
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Research Support, Non-U.S. Gov't CO2 signaling Solanum lycopersicum (tomato) climate change elevated CO2 hydrogen peroxide (H2O2) nitric oxide (NO) redox stomatal movement mehr... RNA, Messenger Carbon Dioxide 142M471B3J Nitric Oxide 31C4KY9ESH Abscisic Acid 72S9A8J5GW Hydrogen Peroxide BBX060AN9V NADPH Oxidases EC 1.6.3.- Nitrate Reductase EC 1.7.99.4
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520 |a Climate change as a consequence of increasing atmospheric CO2 influences plant photosynthesis and transpiration. Although the involvement of stomata in plant responses to elevated CO2 has been well established, the underlying mechanism of elevated CO2 -induced stomatal movement remains largely unknown. We used diverse techniques, including laser scanning confocal microscopy, transmission electron microscopy, biochemical methodologies and gene silencing to investigate the signaling pathway for elevated CO2 -induced stomatal movement in tomato (Solanum lycopersicum). Elevated CO2 -induced stomatal closure was dependent on the production of RESPIRATORY BURST OXIDASE 1 (RBOH1)-mediated hydrogen peroxide (H2 O2 ) and NITRATE REDUCTASE (NR)-mediated nitric oxide (NO) in guard cells in an abscisic acid (ABA)-independent manner. Silencing of OPEN STOMATA 1 (OST1) compromised the elevated CO2 -induced accumulation of H2 O2 and NO, upregulation of SLOW ANION CHANNEL ASSOCIATED 1 (SLAC1) gene expression and reduction of stomatal aperture, whereas silencing of RBOH1 or NR had no effects on the expression of OST1. Our results demonstrate that as critical signaling molecules, RBOH1-dependent H2 O2 and NR-dependent NO act downstream of OST1 that regulate SLAC1 expression and elevated CO2 -induced stomatal movement. This information is crucial to deepen the understanding of CO2 signaling pathway in guard cells 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a CO2 signaling 
650 4 |a Solanum lycopersicum (tomato) 
650 4 |a climate change 
650 4 |a elevated CO2 
650 4 |a hydrogen peroxide (H2O2) 
650 4 |a nitric oxide (NO) 
650 4 |a redox 
650 4 |a stomatal movement 
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650 7 |a Carbon Dioxide  |2 NLM 
650 7 |a 142M471B3J  |2 NLM 
650 7 |a Nitric Oxide  |2 NLM 
650 7 |a 31C4KY9ESH  |2 NLM 
650 7 |a Abscisic Acid  |2 NLM 
650 7 |a 72S9A8J5GW  |2 NLM 
650 7 |a Hydrogen Peroxide  |2 NLM 
650 7 |a BBX060AN9V  |2 NLM 
650 7 |a NADPH Oxidases  |2 NLM 
650 7 |a EC 1.6.3.-  |2 NLM 
650 7 |a Nitrate Reductase  |2 NLM 
650 7 |a EC 1.7.99.4  |2 NLM 
700 1 |a Li, Xin  |e verfasserin  |4 aut 
700 1 |a Zhang, Huan  |e verfasserin  |4 aut 
700 1 |a Zhang, Guanqun  |e verfasserin  |4 aut 
700 1 |a Liu, Yaru  |e verfasserin  |4 aut 
700 1 |a Zhou, Yanhong  |e verfasserin  |4 aut 
700 1 |a Xia, Xiaojian  |e verfasserin  |4 aut 
700 1 |a Chen, Zhixiang  |e verfasserin  |4 aut 
700 1 |a Yu, Jingquan  |e verfasserin  |4 aut 
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773 1 8 |g volume:208  |g year:2015  |g number:2  |g day:07  |g month:10  |g pages:342-53 
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