Reduced nitrogen allocation to expanding leaf blades suppresses ribulose-1,5-bisphosphate carboxylase/oxygenase synthesis and leads to photosynthetic acclimation to elevated CO2 in rice
Article
Article Title | Reduced nitrogen allocation to expanding leaf blades suppresses ribulose-1,5-bisphosphate carboxylase/oxygenase synthesis and leads to photosynthetic acclimation to elevated CO2 in rice |
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ERA Journal ID | 2632 |
Article Category | Article |
Authors | |
Author | Seneweera, S. |
Journal Title | Photosynthetica |
Photosynthetica: international journal for photosynthesis research | |
Journal Citation | 49 (1), pp. 145-148 |
Number of Pages | 4 |
Year | 2011 |
Place of Publication | Prague, Czech Republic |
ISSN | 0300-3604 |
1573-9058 | |
Digital Object Identifier (DOI) | https://doi.org/10.1007/s11099-011-0006-2 |
Web Address (URL) | http://link.springer.com/article/10.1007%2Fs11099-011-0006-2 |
Abstract | Net photosynthetic rate (PN) measured at elevated CO2 concentration (Ce), ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco), and nitrogen (N) content in rice leaves decreased significantly after exposure to long term Ce. The reduction in PN, Rubisco, and leaf N at Ce was similar for the last fully expanded leaf blade (LFELB) and expanding leaf blade (ELB). Spatial leaf N content in the ELB was highest in the zone of cell division, sharply declined as cell expansion progressed and gradually increased with cell maturation. Maximum reduction in spatial leaf N and Rubisco content was found at Ce only within cell expansion and maturation zones. The spatial leaf N content correlated well with the amount of Rubisco synthesized during leaf expansion, suggesting that N deposition into the expanding leaf blade may be the key for Rubisco synthesis and possibly photosynthetic acclimation to Ce. |
Keywords | elevated CO2; photosynthesis; ribulose-1,5-bisphosphate carboxylase/oxygenase; rice; spatial nitrogen deposition |
ANZSRC Field of Research 2020 | 310102. Cell development, proliferation and death |
300403. Agronomy | |
340503. Organic chemical synthesis | |
Public Notes | © 2011 Springer Science+Business Media B.V. Published version deposited in accordance with the copyright policy of the publisher. |
Byline Affiliations | University of Melbourne |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q273v/reduced-nitrogen-allocation-to-expanding-leaf-blades-suppresses-ribulose-1-5-bisphosphate-carboxylase-oxygenase-synthesis-and-leads-to-photosynthetic-acclimation-to-elevated-co2-in-rice
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