Publication:
Evaluation of the role hydroxyl radicals and iron play in hydrogen peroxide killing of Xanthomonas campestris pv. phaseoli

1

Issued Date

1998-12-15

Resource Type

Article

ISSN

03781097

DOI

10.1016/S0378-1097(98)00494-7

Other identifier(s)

2-s2.0-0032466341

Rights

Mahidol University

Rights Holder(s)

SCOPUS

Bibliographic Citation

FEMS Microbiology Letters. Vol.169, No.2 (1998), 255-260

Suggested Citation

Paiboon Vattanaviboon, Skorn Mongkolsuk Evaluation of the role hydroxyl radicals and iron play in hydrogen peroxide killing of Xanthomonas campestris pv. phaseoli. FEMS Microbiology Letters. Vol.169, No.2 (1998), 255-260. doi:10.1016/S0378-1097(98)00494-7 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/18271

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Title

Evaluation of the role hydroxyl radicals and iron play in hydrogen peroxide killing of Xanthomonas campestris pv. phaseoli

Author(s)

Paiboon Vattanaviboon
 Skorn Mongkolsuk

Other Contributor(s)

Chulabhorn Research Institute
 Mahidol University

Abstract

Hydroxyl radical, a product of H2O2metabolism in the Fenton reaction, is a major reactive oxygen species involved in H2O2killing of Xanthomonas campestris pv. phaseoli (Xp). Compounds which absorbed hydroxyl radicals protected Xanthomonas from H2O2killing, but not from killing by a superoxide generator or an organic peroxide. Addition of iron potentiated H2O2killing. On the other hand, pre-treatment of Xp with an iron chelator showed no protective effects and H2O2killing was actually enhanced. Unexpectedly, resuspension of Xp in either water or phosphate buffer induced high-level resistance to H2O2killing. The unknown protection mechanism was independent of new protein synthesis. Copyright (C) 1998 Federation of European Microbiological Societies.

Keyword(s)

Biochemistry, Genetics and Molecular Biology
 Immunology and Microbiology

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https://repository.li.mahidol.ac.th/handle/123456789/18271

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Scopus 1991-2000