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Natura Croatica Issue number: Natura Croatica, Vol. 10 No.4

Utjecaj promijenjene mineralne ishrane na iglice Pančićeve omorike (Picea omorika Pančić) – istraživanje pojedinačnog slučaja

Authors: Hrvoje Lepeduš, Vera Cesar, Elizabeta Has-Schön

Authors and affiliation

  • Hrvoje Lepeduš Department of Biology, Faculty of Education, University of J.J. Strossmayer, L. Jägera 9, HR-31000 Osijek
  • Vera Cesar Department of Biology, Faculty of Education, University of J.J. Strossmayer, L. Jägera 9, HR-31000 Osijek
  • Elizabeta Has-Schön Department of Biology, Faculty of Education, University of J.J. Strossmayer, L. Jägera 9, HR-31000 Osijek

Abstract

A widespread conifer forest decline in Europe and North America has been expressed through various combinations of symptoms. In our study, unspecific biochemical indicators and histological findings were compared with visually assessed damage symptoms in order to get a detailed diagnosis of a single declining Picea omorika Pan~i} tree. By measuring the content of photosynthetic pigments and proteins as well as total guaiacol peroxidase activity we confirmed an altered physiological state of the investigated tree. Histological analysis showed specific patterns of decline for Mg and K deficient trees.

Keywords

Picea omorika, photosynthetic pigments, proteins, peroxidase activity, needle histology

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