caa a22 4500 39752157X CHVBK 20180308164634.0 cr unu---uuuuu 161202e199507 xx s 000 0 eng 10.1093/jxb/46.7.823 doi (NATIONALLICENCE)oxford-10.1093/jxb/46.7.823 The presence of structural surface waxes on coniferousneedles affects the pattern of dry deposition of fine particles [Elektronische Daten] [Jiirgen Burkhardt, Klaus Peters, Alan Crossley] Monodisperse particles (particle diameter ≈0.5 μm) were produced by a particle generator and tagged witha fluorescent dye. The particles were injected into asmall wind tunnel, into which single needles or small branches of Picea abies, Pinus sylvestris, and Abies alba had been introduced. The needles were examined after treatment, using fluorescence microscopy, and the spatial patterns of particle deposition determined. The particles deposited preferentially in the stomatal regions of the needles. In these areas the incidence of micro-roughness due to epicuticular waxes is highest, reducing the laminar boundary layer of the needle. Atmospheric particles of less than 1 /m diameter are mostly hygroscopic and the potential effect of substantial deposition of these particles to stomatal surroundings and their influence on plant water relations is discussed. © Oxford University Press Research Papers nationallicence Conifers nationallicence air pollution nationallicence stomata nationallicence dry deposition nationallicence aerosols nationallicence Burkhardt Jiirgen Bayreuth Institute of Terrestrial Ecosystem Research, Department of Climatology, University of Bayreuth D-95440 Bayreuth, Germany aut Peters Klaus Bayreuth Institute of Terrestrial Ecosystem Research, Department of Climatology, University of Bayreuth D-95440 Bayreuth, Germany aut Crossley Alan Institute of Terrestrial Ecology, Edinburgh Research Station Bush Estate, Penicuik, Midlothian EH26 OQB, UK aut Journal of Experimental Botany Oxford University Press 46/7(1995-07), 823-831 0022-0957 46:7<823 1995 46 exbotj https://doi.org/10.1093/jxb/46.7.823 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1093/jxb/46.7.823 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Burkhardt Jiirgen Bayreuth Institute of Terrestrial Ecosystem Research, Department of Climatology, University of Bayreuth D-95440 Bayreuth, Germany aut NATIONALLICENCE 700 1- Peters Klaus Bayreuth Institute of Terrestrial Ecosystem Research, Department of Climatology, University of Bayreuth D-95440 Bayreuth, Germany aut NATIONALLICENCE 700 1- Crossley Alan Institute of Terrestrial Ecology, Edinburgh Research Station Bush Estate, Penicuik, Midlothian EH26 OQB, UK aut NATIONALLICENCE 773 0- Journal of Experimental Botany Oxford University Press 46/7(1995-07), 823-831 0022-0957 46:7<823 1995 46 exbotj Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford