Targeted knockdown of ribulose-1, 5-bisphosphate carboxylase-oxygenase in rice mesophyll cells

Copyright © 2021 The Authors. Published by Elsevier GmbH.. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Journal of plant physiology. - 1979. - 260(2021) vom: 15. Mai, Seite 153395
1. Verfasser: Maheshwari, Chirag (VerfasserIn)
Weitere Verfasser: Coe, Robert A, Karki, Shanta, Covshoff, Sarah, Tapia, Ronald, Tyagi, Aruna, Hibberd, Julian M, Furbank, Robert T, Quick, William Paul, Lin, Hsiang-Chun
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2021
Zugriff auf das übergeordnete Werk:Journal of plant physiology
Schlagworte:Journal Article Antisense C(4) rice Oryza sativa RBCS Rubisco Ribulose-Bisphosphate Carboxylase EC 4.1.1.39
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520 |a We generated antisense constructs targeting two of the five Rubisco small subunit genes (OsRBCS2 and 4) which account for between 30-40 % of the RBCS transcript abundance in leaf blades. The constructs were driven by a maize phosphoenolpyruvate carboxylase (PEPC) promoter known to have enriched expression in mesophyll cells (MCs). In the resulting lines leaf, Rubisco protein content was reduced by between 30-50 % and CO2 assimilation rate was limited under photorespiratory and non-photorespiratory conditions. A relationship between Rubisco protein content and CO2 assimilation rate was found. This was associated with a significant reduction in dry biomass accumulation and grain yield of between 37-70%. In addition to serving as a resource for reducing Rubisco accumulation in a cell-preferential manner, these lines allow us to characterize gene function and isoform specific suppression on photosynthesis and growth. Our results suggest that the knockdown of multiple genes is required to completely reduce Rubisco accumulation in MCs 
650 4 |a Journal Article 
650 4 |a Antisense 
650 4 |a C(4) rice 
650 4 |a Oryza sativa 
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650 7 |a EC 4.1.1.39  |2 NLM 
700 1 |a Coe, Robert A  |e verfasserin  |4 aut 
700 1 |a Karki, Shanta  |e verfasserin  |4 aut 
700 1 |a Covshoff, Sarah  |e verfasserin  |4 aut 
700 1 |a Tapia, Ronald  |e verfasserin  |4 aut 
700 1 |a Tyagi, Aruna  |e verfasserin  |4 aut 
700 1 |a Hibberd, Julian M  |e verfasserin  |4 aut 
700 1 |a Furbank, Robert T  |e verfasserin  |4 aut 
700 1 |a Quick, William Paul  |e verfasserin  |4 aut 
700 1 |a Lin, Hsiang-Chun  |e verfasserin  |4 aut 
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773 1 8 |g volume:260  |g year:2021  |g day:15  |g month:05  |g pages:153395 
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