عنوان

The metabolism of arsenite /

(Number (ISBN

0415697190

(Number (ISBN

9780415697194

Number

dltt

Title Proper

The metabolism of arsenite /

General Material Designation

[Book]

First Statement of Responsibility

editors: Joanne M. Santini & Seamus A. Ward

Edition Statement

First edition

Specific Material Designation and Extent of Item

xxv, 189 pages :

Other Physical Details

illustrations (some color), maps ;

Dimensions

26 cm

Series Title

Arsenic in the environment ;

Volume Designation

v. 5

Text of Note

Includes bibliographical references and index

Text of Note

Contents note continued: 4.2. Arsenic resistance -- 4.3. Arsenic in energy generation -- 5. Prokaryotic aerobic oxidation of arsenite / J.M. Santini -- 5.1. Introduction -- 5.2. Aerobic arsenite-oxidizing bacteria -- 5.3. Arsenite metabolism -- 5.4. Aerobic arsenite-oxidizing communities -- 5.5. Summary and future directions -- 6. Anaerobic oxidation of arsenite by autotrophic bacteria: The view from Mono Lake, California / C.W. Saltikov -- 6.1. Introduction -- 6.2. Nitrate-respiring arsenite-oxidizers -- 6.3. An annotated arsenate reductase that runs in reverse -- 6.4. Anoxygenic photosynthesis fueled by arsenite -- 7. Arsenite oxidase / J.M. Santini -- 7.1. Introduction -- 7.2. Characteristics of the arsenite oxidase -- 8. Microbial arsenic response and metabolism in the genomics era / F. Arsene-Ploetze -- 8.1. Introduction -- 8.2. Descriptive and comparative genomics -- 8.3. High-throughput genomics reveal the functioning of microorganisms -- 8.4. Conclusions

Text of Note

Contents note continued: 9. Arsenite oxidation -- regulation of gene expression / S. Djordjevic -- 9.1. Introduction -- 9.2. Multiple modes of arsenite oxidase regulation -- 9.3. AioSR and their involvement in Aio regulation -- 9.4. Quorum sensing -- 9.5. Heat-shock protein DnaJ -- 9.6. Conclusions -- 10. Evolution of arsenite oxidation / B. Schoepp-Cothenet -- 10.1. Introduction -- 10.2. Molecular description of arsenic bioenergetic enzymes -- 10.3. Function of the enzymes -- 10.4. Phylogenetic analysis of Aio and Arr -- 10.5. Taking bioenergetics into account -- 10.6. Evolutionary scenario of arsenite oxidation -- 11. Remediation using arsenite-oxidizing bacteria / D. Lievremont -- 11.1. Introduction -- 11.2. Arsenite oxidation-based remediation bioprocesses -- 11.3. Conclusion -- 12. Development of biosensors for the detection of arsenic in drinking water / J. Ajioka -- 12.1. Introduction -- 12.2. Biosensors for detection of environmental toxins -- 12.3. Biosensors for arsenic -- 12.4. Conclusions

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Text of Note

"Arsenite contamination of drinking water is a major cause of chronic illness and mortality in many countries, but until recently little was known of the processes determining its movement and concentration. Bacterial oxidation of arsenite was first described in 1918 and thought to be a means of detoxification. It was not until 2000 that the first autotrophic arsenite-oxidising bacterium was isolated and shown to gain energy from arsenite oxidation. Since then a wide range of such bacteria has been isolated and the literature on the topic has grown rapidly. This book reviews the new understanding of the diversity and abundance of such organisms, their role in arsenic cycling in the environment and their possible relations with arsenic-dependent diseases in humans"--

Text of Note

"Up to 200 million people in 70 countries are at risk from drinking water contaminated with arsenic, which is a major cause of chronic debilitating illnesses and fatal cancers. Until recently little was known about the mobility of arsenic, and how redox transformations determined its movement into or out of water supplies. Although human activities contribute to the release of arsenic from minerals, it is now clear that bacteria are responsible for most of the redox transformation of arsenic in the environment. Bacterial oxidation of arsenite (to the less mobile arsenate) has been known since 1918, but it was not until 2000 that a bacterium was shown to gain energy from this process. Since then a wide range of arsenite-oxidizing bacteria have been isolated, including aerobes and anaerobes; heterotrophs and autotrophs; thermophiles, mesophiles and psychrophiles. This book reviews recent advances in the study of such bacteria. After a section on background geology and health issues the main body of the book concerns the cellular machinery of arsenite oxidation. It concludes by examining possible applications. Topics treated are: The geology and cycling of arsenic Arsenic and disease Arsenite oxidation: physiology, enzymes, genes, and gene regulation. Community genomics and functioning, and the evolution of arsenite oxidation Microbial arsenite oxidation in bioremediation Biosensors for arsenic in drinking water and industrial effluents"--

International Standard Book Number

9780203120187

Arsenic cycle (Biogeochemistry)

Arsenic-- Environmental aspects

Arsenic in the body

Arsenic-- Metabolism

Drinking water-- Arsenic content

Class number

Book number

Santini, Joanne M

Ward, Seamus A

Date of Transaction

20130429232544.0

Cataloguing Rules (Descriptive Conventions))

rda

Electronic name

[Book]

Y