Comparison of antioxidant responses to cadmium and lead in Bruguiera gymnorrhiza seedlings

Autor:	X. C. Liu, Shichu Liang, Y. Z. Chen, D. L. Yang, Y. M. Tao, T. Tan
Rok vydání:	2012
Předmět:	Cadmium Antioxidant biology medicine.medical_treatment chemistry.chemical_element Plant Science Horticulture Malondialdehyde Bruguiera biology.organism_classification Superoxide dismutase chemistry.chemical_compound Point of delivery chemistry Catalase Botany biology.protein medicine Peroxidase
Zdroj:	Biologia plantarum. 56:149-152
ISSN:	1573-8264 0006-3134
Popis:	Seedlings of mangrove plant Bruguiera gymnorrhiza cultured in sand with Hoagland’s nutrient solution were treated with 1 to 30 mM Cd(NO3)2 or Pb(NO3)2 for 2 months. In all Cd/Pb treatments, the malondialdehyde content increased while the chlorophyll content declined. Peroxidase (POD) and superoxide dismutase (SOD) activities in roots increased at moderate Cd/Pb concentrations (1–10 mM), whereas decreased at higher concentrations (20–30 mM). Catalase (CAT) activity in roots was inhibited by 1–10 mM Cd but enhanced by 1–10 mM Pb. The activities of POD, SOD and CAT in leaves were less affected by Cd and Pb than in roots. A new SOD and three CAT isoenzymes were induced by Pb. In contrast, no additional SOD and CAT isoenzymes were induced by Cd.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4673dd09471d058388d82d87050e0a2a https://doi.org/10.1007/s10535-012-0032-3 Zobrazit plný text záznamu Full text from SpringerLink