Extracellular superoxide anion production contributes to the virulence ofXanthomonas oryzaepv.oryzae-Reference-Cited by-同舟云学术

Extracellular superoxide anion production contributes to the virulence ofXanthomonas oryzaepv.oryzae

Published:2009-02 Issue:2 Volume:55 Page:110-116
ISSN:0008-4166
Container-title:Canadian Journal of Microbiology
language:en
Short-container-title:Can. J. Microbiol.

Author:

Li Xin¹²³⁴,Pang Xinyue¹²³⁴,Zhi Dejuan¹²³⁴,Wang Jinsheng¹²³⁴,Li Minquan¹²³⁴,Li Hongyu¹²³⁴

Affiliation:

1. MOE Key Laboratory of Arid and Grassland Ecology, School of Life sciences, Lanzhou University, Lanzhou 730000, China

2. Food and Bioengineering College, Henan University of Science and Technology, Luoyang 471000, China

3. Key Laboratory of Monitoring and Management of Plant Diseases and Pests, Ministry of Agriculture, Department of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China

4. Department of Plant Protection, Gansu Agricultural University, Lanzhou 730060, China

Abstract

Endogenous superoxide anion production was determined by electron spin resonance in wild-type strains and avrXa7 mutants of Xanthomonas oryzae pv. oryzae . The localization of superoxide anion was carried out in the intra- and extra-cellular fractions. Results showed the presence of superoxide anion in multi-locations of X. oryzae pv. oryzae cells. The extracellular fraction was the major location of superoxide anion production. Furthermore, a positive relationship was shown between the levels of endogenous superoxide anion and the virulence of strains. These indubitable results suggested that the superoxide anion contributes to the virulence of X. oryzae pv. oryzae.

Publisher

Canadian Science Publishing

Subject

Genetics,Molecular Biology,Applied Microbiology and Biotechnology,General Medicine,Immunology,Microbiology

Link

http://www.nrcresearchpress.com/doi/pdf/10.1139/W08-112

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