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Production of hydrogen peroxide and hydroxyl radical in potato tuber during the necrotrophic phase of hemibiotrophic pathogen Phytophthora infestans infection

Paper ID Volume ID Publish Year Pages File Format Full-Text
30673 44495 2012 5 PDF Available
Title
Production of hydrogen peroxide and hydroxyl radical in potato tuber during the necrotrophic phase of hemibiotrophic pathogen Phytophthora infestans infection
Abstract

In this study, evidence is provided on the formation of hydrogen peroxide (H2O2) and hydroxyl radical (HO) in the potato tuber during the necrotrophic phase of the hemibiotrophic pathogen Phytophthora infestans infection. Using 3,3-diaminobenzidine tetrahydrochloride (DAB) imaging technique, the formation of H2O2 was demonstrated in P. infestans-infected potato tuber. For the first time, HO formation was demonstrated in P. infestans-infected potato tuber using electron paramagnetic resonance (EPR) spectroscopy. An enhancement in spontaneous ultra-weak photon emission indicated the extent of lipid peroxidation in the P. infestans-infected potato tuber. The data presented in this study reveal that the formation of H2O2 and HO in the P. infestans-infected potato tuber is associated with lipid peroxidation. It is proposed here that the ultra-weak photon emission can be used as a non-invasive indicator of the oxidative processes in the quality control at food industry.

► Hydrogen peroxide from pathogen infected potato tuber was detected by DAB imaging. ► Hydroxyl radical from pathogen infected potato tuber was detected by EPR. ► Photon emission was used to detect the lipid peroxidation from potato tuber. ► Formation of H2O2 and HO was correlated with lipid peroxidation.

Keywords
Hydrogen peroxide; Hydroxyl radical; Oxidative burst; Phytophthora infestans
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Production of hydrogen peroxide and hydroxyl radical in potato tuber during the necrotrophic phase of hemibiotrophic pathogen Phytophthora infestans infection
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology B: Biology - Volume 117, 5 December 2012, Pages 202–206
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us