title: Modeling of stomatal conductance to estimate stomatal ozone uptake by Fagus crenata, Quercus serrata, Quercus mongolica var. crispula and Betula platyphylla.
abstract: To construct stomatal conductance models and estimate stomatal O3 uptake for Fagus crenata, Quercus serrata, Quercus mongolica var. crispula and Betula platyphylla, stomatal conductance (gs) was measured in seedlings of the four tree species. Better estimates of gs were made by incorporating the acute effects of O3 on gs into the models and the models could explain 34-52% of the variability in gs. Although the O3 concentration was relatively high in spring from April to May, COU of F. crenata, Q. serrata and Q. mongolica var. crispula were relatively low and the ratios of COU in spring to total COU in one year were 16.8% in all tree species because of low gs limited mainly by leaf pre-maturation and/or low temperature. The COU of B. platyphylla were relatively high mainly because of rapid leaf maturation and lower optimal temperature for stomatal opening.
authors.affiliation: The United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8509, Japan.
authors.forename: Yoshiyuki
authors.initials: Y
authors.lastname: Kinose
authors.affiliation: The United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8509, Japan.
authors.forename: Fumika
authors.initials: F
authors.lastname: Azuchi
authors.affiliation: The Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8509, Japan.
authors.forename: Yui
authors.initials: Y
authors.lastname: Uehara
authors.affiliation: The Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8509, Japan.
authors.forename: Tomoaki
authors.initials: T
authors.lastname: Kanomata
authors.affiliation: The Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8509, Japan.
authors.forename: Ayumi
authors.initials: A
authors.lastname: Kobayashi
authors.affiliation: The Graduate School of Fisheries Science and Environmental Studies, Nagasaki University, Nagasaki, Nagasaki 852-8521, Japan.
authors.forename: Masahiro
authors.initials: M
authors.lastname: Yamaguchi
authors.affiliation: Institute of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8509, Japan. Electronic address: izuta@cc.tuat.ac.jp.
authors.forename: Takeshi
authors.initials: T
authors.lastname: Izuta
mesh_terms: D029662:Betula / Q000187:drug effects; D029964:Fagus / Q000187:drug effects / Q000502:physiology*; D008954:Models, Biological; D010126:Ozone / Q000378:metabolism* / Q000633:toxicity; D018515:Plant Leaves / Q000187:drug effects / Q000502:physiology; D054046:Plant Stomata / Q000378:metabolism*; D029963:Quercus / Q000187:drug effects / Q000502:physiology*; D012621:Seasons; D013696:Temperature
chemical_list: D010126:Ozone
keywords: Deciduous broad-leaved tree species; Leaf maturation; Ozone uptake; Spring; Stomatal conductance