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Photosynthetic traits of Siebold's beech seedlings in changing light conditions by removal of shading trees under elevated CO2

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Title: Photosynthetic traits of Siebold's beech seedlings in changing light conditions by removal of shading trees under elevated CO2
Authors: Watanabe, M. Browse this author
Kitaoka, S. Browse this author
Eguchi, N. Browse this author
Watanabe, Y. Browse this author
Satomura, T. Browse this author
Takagi, K. Browse this author
Satoh, F. Browse this author
Koike, T. Browse this author →KAKEN DB
Keywords: Changing light conditions
elevated CO2
Fagus crenata
leaf nitrogen
photoinhibition
photosynthesis
Issue Date: Jan-2016
Publisher: Wiley-Blackwell
Journal Title: Plant biology
Volume: 18
Start Page: 56
End Page: 62
Publisher DOI: 10.1111/plb.12382
PMID: 26307372
Abstract: The purpose of this study was to obtain basic information on acclimation capacity of photosynthesis in Siebold's beech seedlings to increasing light intensity under future elevated CO2 conditions. We monitored leaf photosynthetic traits of these seedlings in changing light conditions (before removal of shade trees, the year after removal of shade trees and after acclimation to open conditions) in a 10-year free air CO2 enrichment experiment in northern Japan. Elevated CO2 did not affect photosynthetic traits such as leaf mass per area, nitrogen content and biochemical photosynthetic capacity of chloroplasts (i.e. maximum rate of carboxylation and maximum rate of electron transport) before removal of the shade trees and after acclimation to open conditions; in fact, a higher net photosynthetic rate was maintained under elevated CO2. However, in the year after removal of the shade trees, there was no increase in photosynthesis rate under elevated CO2 conditions. This was not due to photoinhibition. In ambient CO2 conditions, leaf mass per area and nitrogen content were higher in the year after removal of shade trees than before, whereas there was no increase under elevated CO2 conditions. These results indicate that elevated CO2 delays the acclimation of photosynthetic traits of Siebold's beech seedlings to increasing light intensity.
Rights: This is the peer reviewed version of the following article:Plant Biology, Volume 18(S1),pages 56–62,January 2016,which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1111/plb.12382/full. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
Type: article (author version)
URI: http://hdl.handle.net/2115/63957
Appears in Collections:農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 小池 孝良

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