Bioacumulation capacity of Iris humilis
2018
Аутори:
Milinčić, DanijelAvramov, Stevan
Mačukanović-Jocić, Marina
Dojčinović, Biljana
Stanojević, Slađana
Pešić, Mirjana
Kostić, Aleksandar
Тип документа:
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт:
The mineral composition of the plant mainly depends on two factors – the growing soil composition and/or the influence of the environment (especially anthropogenic factor). Availability of metal’s ions in soil for plant root is determined by element form, pH-value, etc. Some plants possessed ability to concentrate (bio accumulate) some macro- or microelements. The aim of this work was to examine ability of diff erent parts of Iris humillis plant (rhizome, above-ground vegetative part and flower) to bound metal ions from surrounding growing soil or environment. Th is process was expressed as Biological
Absorption Coefficient (BAC) which was calculated as cplant part/csoil ratio where cplant part and csoil are concentration of selected element in different parts of plant i.e. in soil. Content of selected elements (potassium, phosphorus and nickel) in soil and plant was determined by ICP-OES method (including
pre-digestion of samples) and expressed as mg/kg of dry matter. Determined concentrations of potassium, phosphorus and nickel in soil were 877.1 mg/kg, 352.2 mg/kg and 2.97 mg/kg respectively. Content of selected elements in different parts of I. humillis was as follow: rhizome (K- 1686.0 mg/kg,
P- 474.2 mg/kg and Ni- 8.5 mg/kg), above-ground vegetative parts (K- 3033.1 mg/kg, P- 423.1 mg/kg and Ni- 0.29 mg/kg) and flower (K- 1461.4 mg/kg, P- 273.0 mg/kg and Ni- 0.12 mg/kg). According to results for BAC potassium was bioaccumulate in all plant parts since value of this factor was higher than 1 (BACrhizome= 1.92, BACabove-ground vegetative parts =3.46, BACflower= 1.67). Also, rhizome and above-ground vegetative part of I. humillis showed ability for bioaccumulation of phosphorus (BACrhizome= 1.35, BACabove-ground vegetative parts =1.20, BACflower= 0.78) while rhizome possessed high ability to concentrate nickel (BACrhizome= 2.86). The obtained results indicated
that this Iris species possessed good ability for Ni-bonding through rhizome. It can be important for potential bioremediation use, since increased nickel concentration in the environment
can be caused by some anthropogenic sources.
Кључне речи:
Iris humillis; bioaccumulation; potassium; phosphorus; nickelФинансирање / пројекти:
- Еволуција у хетерогеним срединама: механизми адаптација, биомониторинг и конзервација биодиверзитета (RS-MESTD-Basic Research (BR or ON)-173025)
У:
- Book of abstracts: 7th Balkan Botanical Congress; 2018 Sep 10-14; Novi Sad, Serbia. Beograd: Institute of Botany and Botanical Garden "Jevremovac", Faculty of Biology - University of Belgrade; 2018. p. 35. (Botanica Serbica; Vol. 42; Suppl. 1)