Adaxial/abaxial specification in the regulation of photosynthesis and stomatal opening with respect to light orientation and growth with CO2 enrichment in the C4 species Paspalum dilatatum

Whole-plant morphology, leaf structure and composition were studied together with the effects of light orientation on the dorso-ventral regulation of photosynthesis and stomatal conductance in Paspalum dilatatum cv. Raki plants grown for 6 wk at either 350 or 700 microl l(-1) CO(2). Plant biomass wa...

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Veröffentlicht in:The New phytologist. - 1979. - 177(2008), 1 vom: 15., Seite 186-198
1. Verfasser: Soares, Ana Sofia (VerfasserIn)
Weitere Verfasser: Driscoll, Simon P, Olmos, Enrique, Harbinson, Jeremy, Arrabaça, Maria Celeste, Foyer, Christine H
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2008
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Plant Proteins Carbon Dioxide 142M471B3J
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245 1 0 |a Adaxial/abaxial specification in the regulation of photosynthesis and stomatal opening with respect to light orientation and growth with CO2 enrichment in the C4 species Paspalum dilatatum 
264 1 |c 2008 
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500 |a Date Completed 06.03.2008 
500 |a Date Revised 14.04.2021 
500 |a published: Print-Electronic 
500 |a CommentIn: New Phytol. 2008;177(1):5-8. - PMID 18078468 
500 |a Citation Status MEDLINE 
520 |a Whole-plant morphology, leaf structure and composition were studied together with the effects of light orientation on the dorso-ventral regulation of photosynthesis and stomatal conductance in Paspalum dilatatum cv. Raki plants grown for 6 wk at either 350 or 700 microl l(-1) CO(2). Plant biomass was doubled as a result of growth at high CO(2) and the shoot:root ratio was decreased. Stomatal density was increased in the leaves of the high CO(2)-grown plants, which had greater numbers of smaller stomata and more epidermal cells on the abaxial surface. An asymmetric surface-specific regulation of photosynthesis and stomatal conductance was observed with respect to light orientation. This was not caused by dorso-ventral variations in leaf structure, the distribution of phosphoenolpyruvate carboxylase (PEPC) and ribulose 1,5-bisphosphate carboxylase/oxygenase (Rubisco) proteins or light absorptance, transmittance or reflectance. Adaxial/abaxial specification in the regulation of photosynthesis results from differential sensitivity of stomatal opening to light orientation and fixed gradients of enzyme activation across the leaf 
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650 4 |a Research Support, Non-U.S. Gov't 
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700 1 |a Driscoll, Simon P  |e verfasserin  |4 aut 
700 1 |a Olmos, Enrique  |e verfasserin  |4 aut 
700 1 |a Harbinson, Jeremy  |e verfasserin  |4 aut 
700 1 |a Arrabaça, Maria Celeste  |e verfasserin  |4 aut 
700 1 |a Foyer, Christine H  |e verfasserin  |4 aut 
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