2024-03-29T13:21:01Zhttps://eprints.lib.hokudai.ac.jp/dspace-oai/requestoai:eprints.lib.hokudai.ac.jp:2115/495162022-11-17T02:08:08Zhdl_2115_20046hdl_2115_138Ozone-induced stomatal sluggishness develops progressively in Siebold's beech (Fagus crenata)Hoshika, YasutomoWatanabe, MakotoInada, NaokiKoike, TakayoshiTropospheric ozoneStomatal conductanceStomatal sluggishnessPhotosynthesisLeaf senescence468We investigated the effects of ozone and leaf senescence on steady-state stomatal conductance and stomatal response to light variation. Measurements were carried out in a free-air ozone exposure experiment on a representative deciduous broadleaved tree species in Japan (Fagus crenata). Both steady-state and dynamic stomatal response to light variation varied intrinsically with season due to leaf senescence. Ozone induced the decrease in steady-state leaf gas exchange and the sluggish stomatal closure progressively. These findings suggest that ozone reduces the ability of plants to adapt to a fluctuating light environment under natural conditions, and therefore impairs plant growth and ability to control water loss.ElsevierJournal Articleapplication/pdfhttp://hdl.handle.net/2115/49516https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/49516/1/EP166_152-156.pdf0269-7491Environmental Pollution1661521562012-07enginfo:pmid/22504428info:doi/10.1016/j.envpol.2012.03.013author