Photosynthetic traits of Siebold's beech and oak saplings grown under free air ozone exposure in northern Japan

Watanabe, Makoto; Hoshika, Yasutomo; Inada, Naoki; Wang, Xiaona; Mao, Qiaozhi; Koike, Takayoshi

Photosynthetic traits of Siebold's beech and oak saplings grown under free air ozone exposure in northern Japan

Watanabe, Makoto; Hoshika, Yasutomo; Inada, Naoki et al.

Environmental Pollution, 2013, 174, 50-56

Permalink : https://hdl.handle.net/2115/51003

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アクセス権	open access
URI	https://hdl.handle.net/2115/51003
タイトル	Photosynthetic traits of Siebold's beech and oak saplings grown under free air ozone exposure in northern Japan
著者	Watanabe, Makoto ; Hoshika, Yasutomo ; Inada, Naoki ; Wang, Xiaona ; Mao, Qiaozhi ; Koike, Takayoshi
e-Rad_Researcher 50612256 著者名 Watanabe, Makoto
e-Rad_Researcher 50620994 著者名 Hoshika, Yasutomo
著者名 Inada, Naoki
著者名 Wang, Xiaona
著者名 Mao, Qiaozhi
e-Rad_Researcher 10270919 著者名 Koike, Takayoshi
言語	英語
キーワード	Free air ozone exposure
	Photosynthesis
	Nitrogen allocation
	Beech
	Oak
発行日	2013-03
出版者	Elsevier
収録物名	Environmental Pollution
巻(号)	174
ページ	50-56
抄録	We set up a free-air ozone (O3) exposure system for determining the photosynthetic responses of Siebold’s beech (Fagus crenata) and oak (Quercus mongolica var. crispula) to O3 under field conditions. Ten-year-old saplings of beech and oak were exposed to an elevated O3 concentration (60 nmol mol-1) during daytime from 6 August to 11 November 2011. Ozone significantly reduced the net photosynthetic rate in leaves of both species in October, by 46% for beech and 15% for oak. In beech there were significant decreases in maximum rate of carboxylation, maximum rate of electron transport in photosynthesis, nitrogen content and photosynthetic nitrogen use efficiency, but not in oak. Stomatal limitation of photosynthesis was unaffected by O3. We therefore concluded photosynthesis in beech is more sensitive to O3 than that in oak, and the O3-induced reduction of photosynthetic activity in beech was due not to stomatal closure, but to biochemical limitation.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
PISSN	0269-7491
関連情報	PMID 23246746
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1016/j.envpol.2012.11.006