Morphological Changes and Oxidative Stress in Actinobacteria during Removal of Heavy Metals

Heavy metal pollution is one the most serious environmental problems facing our planet today and immediate solutions are needed to tackle it. Heavy metals such as copper (Cu) and chromium (Cr) play an important role as trace elements in biochemical reactions but these metals are toxic at higher conc...

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Bibliographic Details
Published inActinobacteria pp. 52 - 63
Format Book Chapter
LanguageEnglish
Published United Kingdom CRC Press 01.01.2013
Taylor & Francis Group
Subjects
Food & beverage technology
Meteorology
Mm
Magnifi Cation
Chromate Reductase
Universidad Nacional De
Sod Activity
Exponential Phase Cells
Chromate Reductase Activity
Cat Activity Level
Liquid Minimal Medium
Basic Biological Process
Microscopic Morphology
Bacterial Fl Occules
Compact Pellets
DSM 45259T
ROS Production
5Facultad De Ciencias Naturales
CONICET
ROS
Tomás
Cat Activity
Genus Streptomyces
Morphological Alterations
Control Cells
Macroscopic Morphology
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Summary:Heavy metal pollution is one the most serious environmental problems facing our planet today and immediate solutions are needed to tackle it. Heavy metals such as copper (Cu) and chromium (Cr) play an important role as trace elements in biochemical reactions but these metals are toxic at higher concentrations. Cu is a very versatile heavy metal, able to cycle between two redox states, oxidized Cu(II) and reduced Cu(I), with Cu(I) being highly1Planta Piloto de Procesos Industriales y Microbiológicos (PROIMI), CONICET, Av. Belgrano y Pje. Caseros, 4000, Tucumán, Argentina. 2Universidad de San Pablo-Tucumán, Argentina. 3Facultad de Ciencias de la Salud. Universidad del Norte Santo Tomás de Aquino-Tucumán, Argentina. 4Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, 4000 Tucumán, Argentina. 5Facultad de Ciencias Naturales e Instituto Miguel Lillo, Universidad Nacional de Tucumán, 4000 Tucumán, Argentina. *Corresponding author: veronicacollin @yahoo.com.arunstable. All living organisms require Cu as a catalytic cofactor for basic biological process such as the respiration (Puig and Thiele 2002); however, both prokaryotic and eukaryotic cells possess homeostatic mechanisms to regulate the concentration of Cu and minimize the toxic effects produced by excessive levels of the same.
ISBN:9781466578739
1466578734
DOI:10.1201/b14776-5