Investigating heritability of cadmium tolerance in Chironomus riparius natural populations: A physiological approach

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• 作者：Joã ; o Pedrosa^a ; ^b ; ^{jpedrosa@ua.pt} ; Carlos Gravato^a ; Diana Campos^a ; Paulo Cardoso^a ; Etelvina Figueira^a ; Carsten Nowak^b ; Amadeu M.V.M. Soares^a ; Carlos Barata^c ; Joã ; o L.T. Pestana^a ; ^{jpestana@ua.pt}
• 关键词：Metal tolerance ; Metallothioneins ; Glutathione ; Oxidative damage ; Energy allocation ; Protein profile
• 刊名：Chemosphere
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：170
• 期：Complete
• 页码：83-94
• 全文大小：1427 K
• 卷排序：170

文摘

Physiological responses to cadmium were assessed in midge populations with heritably different Cd-tolerance. Protein profiles varied with Cd exposure and Cd-tolerance of populations. Cd-tolerant populations had higher baseline levels of metallothioneins and glutathione and higher energy consumption with Cd. Cd exposure increased glutathione and lipid peroxidation in Cd-sensitive populations. Cd-tolerance is related with different constitutive levels and plasticity of defence mechanisms.