Influence of dietary cadmium exposure on fitness traits and its accumulation (with an overview on trace elements) in Lymantria dispar larvae
2017
Autori:
Vlahović, MilenaMatić, Dragana
Mutić, Jelena
Trifković, Jelena
Đurđić, Slađana
Perić Mataruga, Vesna
Tip dokumenta:
Članak u časopisu (Objavljena verzija)
,
© 2017 Elsevier Inc.
Metapodaci
Prikaz svih podataka o dokumentuApstrakt:
Bioaccumulation and excretion of heavy metals in insects is only partially clarified. We have investigated cadmium accumulation in the feces, head and integument of Lymantria dispar (Lepidoptera: Lymantriidae) larvae exposed to chronic dietary intake of cadmium. The aim of the experiment was to establish modalities of metal accumulation, primarily cadmium, as well as changes in fitness traits in two insect populations receiving 50 or 100 μg Cd/g dry food. The egg-masses originated from two localities: a protected nature reserve (unpolluted population) and an area near a busy highway (polluted population) in Serbia. At both added dietary levels cadmium concentration was highest in feces. Small alterations in metal concentrations after both cadmium treatments were detected in the integument. It was established that irrespective of population origin, the modality of decline of larval mass and relative growth rate (RGR) was similar. Concentrations of Cu and Zn in the integument were approximately the same regardless of dietary cadmium intake. However, cadmium accumulation in the examined tissues, as well as variability of fitness traits depended on population origin and cadmium concentration. In larvae from both populations not given contaminated food the head was the organ with the greatest accumulation of trace elements. Our results reveal how invasive phytophagous insects cope with high metal concentrations in their food by body mass (RGR) reduction and energy allocation towards processes that enable accumulation of cadmium and other trace elements in different tissues.
Ključne reči:
Accumulation; Dietary cadmium exposure; Fitness traits; Lymantria dispar larvaeIzvor:
Comparative Biochemistry and Physiology Part C: Toxicology & Pharmacology, 2017, 200, 27-33Finansiranje / projekti:
- Uticaj magnetnih polja i drugih sredinskih stresora na fiziološke odgovore i ponašanje različitih vrsta (RS-MESTD-Basic Research (BR or ON)-173027)
DOI: 10.1016/j.cbpc.2017.06.003
ISSN: 1532-0456
PubMed: 28602909
WoS: 000411419200004
Scopus: 2-s2.0-85020883060
URI
http://linkinghub.elsevier.com/retrieve/pii/S1532045617301205https://radar.ibiss.bg.ac.rs/handle/123456789/2790