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- Title
MORPHOLOGICAL AND BIOCHEMICAL CHANGES AT FOLIAR LEVEL INDUCED BY ATMOSPHERIC POLLUTANTS ON SAMPLES OF AESCULUS HIPPOCASTANUM L. FROM IAŞI CITY AREA.
- Authors
ŞOLTUZU, BOGDAN-DORIN; OLTEANU, ZENOVIA; IVĂNESCU, LĂCRĂMIOARA; TOMA, CONSTANTIN; ZAMFIRACHE, MARIA-MAGDALENA
- Abstract
We present in this paper some morphological changes (presence and size of the surface both normal and necrotic) and biochemical (water content and dry matter) induced at foliar level by some pollutants in samples of Aesculus hippocastanum L. cultivated for ornamental purposes across the five air quality monitoring stations in Iasi city area . These stations monitor the presence of gaseous pollutants (sulphur dioxide, carbon dioxide, nitrogen dioxide, ozone) and solids (powders prone to sedimentation). Measurements were made in vivo, as well on fresh material covering vegetation periods of years 2012 and 2013. The results are supporting the fact that the increased values of dry matter content do not correlate directly with the degree of necrosis of the leaves, which entitles us to believe that the biochemical and physiological modifications made by pollutants at this level are fast followed by defoliation events. The most critical situation is found at the samples of Aesculus hippocastanum L. grown at the site of the traffic station Podul de Piatră, where SO2 and particulate solids in suspension are the predominating pollutants.
- Subjects
EFFECT of pollution on plants; DRY matter content of plants; HORSE chestnut; POLLUTANTS; DEFOLIATION
- Publication
Analele Stiintifice ale Universitatii Alexandru Ioan Cuza din Iasi. Sectiunea II A, Genetica si Biologie Moleculara, 2013, Vol 14, Issue 4, p26
- ISSN
1582-3571
- Publication type
Article