LEAD AND NICKEL ACCUMULATION IN IRIS PUMILA: CONSIDERATION OF ITS USEFULNESS AS A POTENTIAL BIOINDICATOR IN THE NATURAL PROTECTED AREA OF DELIBLATO SANDS, SERBIA
2014
Authors:
Miljković, DanijelaAvramov, Stevan
Vujić, Vukica
Rubinjoni, Luka
Barišić Klisarić, Nataša
Živković, Uroš
Tarasjev, Aleksej
Document Type:
Article (Published version)
Metadata
Show full item recordAbstract:
In this work, we investigated the suitability of the threatened species,
Iris pumila L., as a possible bioindicator of traffic pollution in its
natural habitats (mostly protected areas and natural reserves). We
examined its potential to accumulate lead (Pb) and nickel (Ni) in
polluted habitats, and the genetic variability for this capability,
since it is an important facet of bioindicator suitability. We estimated
the concentrations of Pb and Ni in the leaves of 17 I. pumila clones
(genotypes) grown in one of their natural habitats, the unpolluted
semi-arid habitat of the protected Deliblato Sands Special Natural
Reserve, and in the leaves of 18 Iris pumila full-sib families grown in
an experimental plot in a heavily polluted urban location in Belgrade,
Serbia. Comparison of the contrasting habitats by one-way ANOVA analysis
showed that both Pb and Ni concentrations were significantly higher
(six-fold) in the I. pumila leaves collected from plants grown in the
polluted urban habitat. Two-way ANOVA (randomized block design) analysis
performed on the full-sib families grown in the urban location failed to
detect significant genetic variation for metal accumulation in I. pumila
leaves. A significant block effect on the concentration of Ni in leaves
was detected, indicating responsiveness to microenvironmental
variability. These results suggest that I. pumila can serve as a good
indicator of traffic pollution in protected areas. The response is
stable since genetic variability of I. pumila populations does not
appear to influence its role as an indicator greatly.
Keywords:
Traffic atmospheric pollution; bioindicators; trace elements accumulation; Iris pumila; genetic variability; Deliblato sandsSource:
Archives of Biological Sciences, 2014, 66, 1, 331-336Funding / projects:
- Evolution in Heterogeneous Environments: Adaptation Mechanisms, Biomonitoring and Conservation of Biodiversity (RS-MESTD-Basic Research (BR or ON)-173025)
DOI: 10.2298/ABS1401331M
ISSN: 1821-4339