Papers by Dragana Petrovic
Bioscience Journal, 2021
This study aimed to analyze stem anatomical characteristics of Trapa natans from five Skadar Lake... more This study aimed to analyze stem anatomical characteristics of Trapa natans from five Skadar Lake locations (L1 - Milovića bay, L2 – inflow of the Morača river, L3 - Kamenik, L4 - Grmožur, L5 - Lipovik) with different concentrations of Cu, Mn, Zn, Co and Pb, during the summer period of the year 2012. Cross sections of stem were made using cryotechnic procedure. For all analyzed quantitative anatomical parameters, the minimum values at the location L2 were recorded, with the presence of maximum content for all investigated metals in stem of Trapa natans. On the other hand, except for cobalt, at the location L4 the minimum concentration for all investigated metals were recorded. Plants collected from this location have the largest average values of the most measured anatomical parameters. The results of Discriminant Analysis showed that plants from different location could be clearly classified into three groups according to their stem quantitative anatomical characteristics which cor...
Acta Botanica Croatica, 2016
Skadar Lake is the largest shallow lake in southeastern Europe. It is located within a national p... more Skadar Lake is the largest shallow lake in southeastern Europe. It is located within a national park, and is included in the Ramsar List of international important wetlands, so its preservation and protection from pollution is very important. The aim of this study was to investigate bioaccumulation of the ecotoxic metals Cd, Pb and Cr from sediments of Skadar Lake in the aquatic macrophyte Trapa natans L. Samples of sediment and plants were collected at nine locations covering all major water inputs to the lake as well as locations where contamination could be expected. The obtained results indicate that sediments from the Skadar Lake are only locally contaminated with Cd (0.03–1.18 mg kg−1), generally contaminated with Cr (15.8–180 mg kg−1), the concentrations of both elements frequently exceeding sediment quality guidelines, while concentrations of Pb were low (2.7–17.4 mg kg−1). The highest bioaccumulation of all metals from sediment to Trapa natans L. was observed in the root, w...
Plants, 2020
The aim of the present study is to investigate the bioaccumulation and translocation of various h... more The aim of the present study is to investigate the bioaccumulation and translocation of various heavy metals, notably copper, zinc, cadmium and lead, in the different plant organs of Trapa natans L. (the root, stem, and leaf) at nine sampling locations, as well as examining the variability in proline accumulation and chlorophyll content due to these heavy metals. Our analysis shows the existence of a statistically significant positive correlation (r = 0.75; p < 0.05) between the Zn content and the accumulation of proline in the root of the examined species. On the other hand, a statistically significant negative correlation was registered between the content of chlorophyll a and the concentration of Zn in the leaf (r = −0.68; p < 0.05). This indicates that Trapa natans L. can be used in biomonitoring Zn-polluted aquatic ecosystems using proline and chlorophyll as sensitive biomarkers.
Biotechnology & Biotechnological Equipment, 2009
Lake Prespa, Lake Ohrid and Lake Skadar are the biggest lakes in the Balkan Peninsula. By reason ... more Lake Prespa, Lake Ohrid and Lake Skadar are the biggest lakes in the Balkan Peninsula. By reason of continuous existence and relatively stable ecological conditions millions years those lakes have a unique collection of flora and fauna. In this paper is presented biodiversity of macrophyte vegetation from Lake Prespa, Lake Ohrid and Lake Skadar. In those three lakes macrophyte vegetation is distributed in zones (belts). The biodiversity of macrophytes is different in those lakes and it is in direct dependence of different altitudes, lakes surfaces and lakes depths.
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Papers by Dragana Petrovic