title: Ecology of SO2resistance: II. Photosynthetic changes of shrubs in relation to SO2absorption and stomatal behavior.
abstract: In an effort to predict SO2sensitivity of plants from their morphological and physiological features, the effects of SO2on photosynthesis were partitioned between stomatal and nonstomatal components for a drought deciduous shrub, Diplacus aurantiacus, and an evergreen shrub, Heteromeles arbutifolia. As predicted, the drought deciduous shrub had the higher gas conductance, and hence SO2absorptance. However, nonstomatal components also play a role in determining SO2sensitivity. Apparently a plant with a high intrinsic photosynthetic capacity will be more sensitive to SO2than one with a lower capacity.
authors.affiliation: Department of Biological Sciences, Standord University, 94305, Stanford, CA, USA.
authors.forename: William E
authors.initials: WE
authors.lastname: Winner
authors.affiliation: Department of Biological Sciences, Standord University, 94305, Stanford, CA, USA.
authors.forename: Harold A
authors.initials: HA
authors.lastname: Mooney