Title of article :
Production of hydrogen peroxide and hydroxyl radical in potato tuber during the necrotrophic phase of hemibiotrophic pathogen Phytophthora infestans infection
Author/Authors :
Rastogi، نويسنده , , Anshu and Posp??il، نويسنده , , Pavel، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2012
Pages :
5
From page :
202
To page :
206
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.
Keywords :
Hydrogen peroxide , Hydroxyl radical , Phytophthora infestans , oxidative burst
Journal title :
Journal of Photochemistry and Photobiology B:Biology
Serial Year :
2012
Journal title :
Journal of Photochemistry and Photobiology B:Biology
Record number :
1878106
Link To Document :
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