Enzymatic responses related to detoxification and oxidative stress in Aelia rostrata Boheman (Hemiptera: Pentatomidae) under sublethal pyrethroid exposure
Phytoparasitica, cilt.54, sa.5, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 54 Sayı: 5
- Basım Tarihi: 2026
- Doi Numarası: 10.1007/s12600-026-01438-z
- Dergi Adı: Phytoparasitica
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, BIOSIS, Zoological Record, Academic Search Ultimate (EBSCO), Natural Science Collection (ProQuest), Biomedical Reference Collection: Corporate Edition (EBSCO)
- Anahtar Kelimeler: Antioxidant defense, Biochemical biomarkers, Digestive physiology, Dose–response relationship, Metabolic suppression
- Yozgat Bozok Üniversitesi Adresli: Evet
Özet
This study investigated the biochemical effects of LC₃₀, LC₄₀, and LC50 doses of the pyrethroid insecticides deltamethrin and lambda-cyhalothrin on Aelia rostrata. The objective was to clarify how insecticide exposure influences oxidative stress, detoxification processes, and digestive metabolism. Experiments were conducted using LC₃₀, LC₄₀, and LC₅₀ concentrations, and the activities of catalase (CAT), glutathione S-transferase (GST), α-amylase, lipase, and total protein levels were assessed. The findings showed that both insecticides induced a dose-dependent increase in CAT and GST activities, indicating the occurrence of oxidative stress and the activation of antioxidant defense systems in the insects. In contrast, marked reductions were observed in α-amylase and lipase activities as well as total protein content, suggesting that insecticide stress suppresses digestive processes and overall energy metabolism. Regression analyses revealed strong dose–response relationships for most biochemical parameters. While deltamethrin produced more consistent and predictable responses, lambda-cyhalothrin resulted in sharper but more variable biochemical effects. CAT and GST responses reflected the activation of oxidative defense mechanisms, whereas decreases in α-amylase, lipase, and total protein were interpreted as indicators of metabolic suppression. Overall, the results demonstrate that LC₃₀, LC₄₀, and LC50 doses of pyrethroid exposure disrupts the oxidative–metabolic balance in A. rostrata and highlight the importance of multiple biochemical biomarkers in assessing insecticide-induced stress.