Differences in the induction of the oxidative burst in compatible and incompatible interactions of soybean and Phytophthora sojae
作者： Xiao-Ren Chen , Xin-Le Wang , Zheng-Guang Zhang , Yuan-Chao Wang , Xiao-Bo Zheng
DOI: 10.1016/J.PMPP.2008.10.002
关键词: Oxidative stress 、 Glutathione reductase 、 Phytophthora sojae 、 Catalase 、 Malondialdehyde 、 Biochemistry 、 Glutathione 、 Biology 、 Antioxidant 、 Lipid peroxidation
摘要: Abstract The effect of infection by Phytophthora sojae on the oxidative state in soybean cultivars Nannong 493-1 (medium-resistant) and Hefeng 35 (susceptible) was studied. Pro-oxidant activity (H2O2 production lipid peroxidation) antioxidant systems (enzymatic activities catalase glutathione reductase, low-molecular-weight antioxidants such as reduced ascorbate glutathione) along with cell death pathogenesis-related (PR) protein analyses were performed to examine their roles establishing resistance or susceptibility. During pathogen infection, H2O2 accumulation higher cultivar than 35. Cell more severe during early period. However, malondialdehyde levels late experiment inherent not consistently lower under different duration antioxidation parameters. expression PR genes induced varied pathogen-infection process. Exogenous treatment one three reductants (dithiothreitol, ascorbate, facilitated disease caused P. both cultivars. In general, these results show that reactive oxygen species play an important role interactions sojae.
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