naa a22 4500 510750036 CHVBK 20180411083101.0 cr unu---uuuuu 180411e20130701xx s 000 0 eng 10.1007/s11270-013-1620-3 doi (NATIONALLICENCE)springer-10.1007/s11270-013-1620-3 Impact of Alkalisation of the Soil on the Anatomy of Norway Spruce ( Picea abies ) Needles [Elektronische Daten] [Aljona Lukjanova, Malle Mandre, Gerly Saarman] In this study, we evaluated the needle anatomy of Norway spruce trees growing on a territory that was exposed to different alkaline dust pollution. The anatomy of the needles of spruce growing on a polluted site in the vicinity of the Kunda cement plant (Northeast Estonia) was compared with the anatomy and physiological state of the needles from an unpolluted site. The needles from polluted sites had a significantly larger average mesophyll area and thicker epidermis. These needles also had significantly smaller average vascular bundles and xylem areas than needles from the unpolluted site. Although in the alkalised growth conditions, the mesophyll area enlarged, the number of damaged mesophyll cells increased, and as a result, the concentration of chlorophylls decreased reducing the photosynthetic potential of trees. Our study indicates that even though cement dust pollution has practically ceased in the area, the alkalised soil is affecting physiological processes in trees for a long time. Springer Science+Business Media Dordrecht, 2013 Norway spruce nationallicence Needle anatomy nationallicence Alkalisation nationallicence Pigments nationallicence Lignification nationallicence Lukjanova Aljona Department of Ecophysiology, Institute of Forestry and Rural Engineering, Estonian University of Life Sciences, Viljandi mnt. 18B, 11216, Tallinn, Estonia aut Mandre Malle Department of Ecophysiology, Institute of Forestry and Rural Engineering, Estonian University of Life Sciences, Viljandi mnt. 18B, 11216, Tallinn, Estonia aut Saarman Gerly Department of Chemistry, Faculty of Science, Tallinn University of Technology, Akadeemia tee 15, 12618, Tallinn, Estonia aut Water, Air, & Soil Pollution Springer Netherlands 224/7(2013-07-01), 1-12 0049-6979 224:7<1 2013 224 11270 https://doi.org/10.1007/s11270-013-1620-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11270-013-1620-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lukjanova Aljona Department of Ecophysiology, Institute of Forestry and Rural Engineering, Estonian University of Life Sciences, Viljandi mnt. 18B, 11216, Tallinn, Estonia aut NATIONALLICENCE 700 1- Mandre Malle Department of Ecophysiology, Institute of Forestry and Rural Engineering, Estonian University of Life Sciences, Viljandi mnt. 18B, 11216, Tallinn, Estonia aut NATIONALLICENCE 700 1- Saarman Gerly Department of Chemistry, Faculty of Science, Tallinn University of Technology, Akadeemia tee 15, 12618, Tallinn, Estonia aut NATIONALLICENCE 773 0- Water, Air, & Soil Pollution Springer Netherlands 224/7(2013-07-01), 1-12 0049-6979 224:7<1 2013 224 11270 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer