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Porphyridium purpureum microalga physiological and ultrastructural changes under copper intoxication.
Markina, Zhanna V; Orlova, Tatyana Yu; Vasyanovich, Yuri A; Vardavas, Alexander I; Stivaktakis, Polychronis D; Vardavas, Constantine I; Kokkinakis, Manolis N; Rezaee, Ramin; Ozcagli, Eren; Golokhvast, Kirill S.
Afiliación
  • Markina ZV; A.V. Zhirmunsky Institute of Marine Biology, National Scientific Center of Marine Biology, Vladivostok, 690041, Russia.
  • Orlova TY; A.V. Zhirmunsky Institute of Marine Biology, National Scientific Center of Marine Biology, Vladivostok, 690041, Russia.
  • Vasyanovich YA; Far Eastern Federal University, Vladivostok, 690950 Russia.
  • Vardavas AI; Laboratory of Toxicology, School of Medicine, University of Crete, Heraklion, Greece.
  • Stivaktakis PD; Laboratory of Toxicology, School of Medicine, University of Crete, Heraklion, Greece.
  • Vardavas CI; Laboratory of Toxicology, School of Medicine, University of Crete, Heraklion, Greece.
  • Kokkinakis MN; Laboratory of Toxicology, School of Medicine, University of Crete, Heraklion, Greece.
  • Rezaee R; Hellenic Mediterranean University, Department of Nutrition and Dietetics, Heraklion, Greece.
  • Ozcagli E; Clinical Research Unit, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
  • Golokhvast KS; Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
Toxicol Rep ; 8: 988-993, 2021.
Article en En | MEDLINE | ID: mdl-34026563
The present work assessed the effect of copper (Cu) on cell dynamics and structure of the microalga Porphyridium purpureum (Rhodophyta, Bangiophycidae). Ultrastructure of the microalga was investigated and fluorescence of chlorophyll a and phycoerythrin, and content of reactive oxygen species (ROS) were estimated by flow cytometry. The number of cells did not show statistically significant differences at concentrations of 50 and 100 µg/L of Cu compared to the control, whereas 150 µg/L of Cu inhibited population growth. The fluorescence of chlorophyll a increased following exposure to Cu 100 µg/L and fluorescence of phycoerythrin enhanced by Cu 150 µg/L. There was no alteration in the above indicators at other concentrations. The content of ROS increased with increasing Cu concentration in a dose-dependent manner. The population size structure was also changed by Cu as the number of cells sized 4-6 µm was increased in the presence of Cu, especially with Cu 150 µg/L. Changes in the topography of thylakoids grew larger with Cu concentration.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Toxicol Rep Año: 2021 Tipo del documento: Article País de afiliación: Rusia Pais de publicación: Irlanda
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Toxicol Rep Año: 2021 Tipo del documento: Article País de afiliación: Rusia Pais de publicación: Irlanda