Analysis of the antioxidant response of Nicotiana benthamiana to infection with two strains of Pepper mild mottle virus

The present study was carried out to investigate the role of reactive oxygen species (ROS) metabolism in symptom development and pathogenesis in Nicotiana benthamiana plants upon infection with two strains of Pepper mild mottle virus, the Italian (PMMoV-I) and the Spanish (PMMoV-S) strains. In this...

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Veröffentlicht in:Journal of experimental botany. - 1985. - 63(2012), 15 vom: 25. Sept., Seite 5487-96
1. Verfasser: Hakmaoui, A (VerfasserIn)
Weitere Verfasser: Pérez-Bueno, M L, García-Fontana, B, Camejo, D, Jiménez, A, Sevilla, F, Barón, M
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2012
Zugriff auf das übergeordnete Werk:Journal of experimental botany
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Antioxidants Isoenzymes Photosystem II Protein Complex Reactive Oxygen Species Peroxiredoxins EC 1.11.1.15 Superoxide Dismutase EC 1.15.1.1 mehr... Glutathione GAN16C9B8O Ascorbic Acid PQ6CK8PD0R
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245 1 0 |a Analysis of the antioxidant response of Nicotiana benthamiana to infection with two strains of Pepper mild mottle virus 
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520 |a The present study was carried out to investigate the role of reactive oxygen species (ROS) metabolism in symptom development and pathogenesis in Nicotiana benthamiana plants upon infection with two strains of Pepper mild mottle virus, the Italian (PMMoV-I) and the Spanish (PMMoV-S) strains. In this host, it has been shown that PMMoV-I is less virulent and plants show the capability to recover 21 d after inoculation. Analyses of oxidative stress biomarkers, ROS-scavenging enzyme activities, and antioxidant compounds were conducted in plants at different post-infection times. Only PMMoV-I stimulated a defence response through: (i) up-regulation of different superoxide dismutase isozymes; (ii) maintenance of adequate levels of three peroxiredoxins (2-Cys Prx, Prx IIC, and Prx IIF); and (iii) adjustments in the glutathione pool to maintain the total glutathione content. Moreover, there was an increase in the level of oxidized glutathione and ascorbate in the recovery phase of PMMoV-I-infected plants. The antioxidant response and the extent of oxidative stress in N. benthamiana plants correlates to: (i) the severity of the symptoms elicited by either strain of PMMoV; and (ii) the high capacity of PMMoV-I-infected plants for symptom recovery and delayed senescence, compared with PMMoV-S-infected plants 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 7 |a Antioxidants  |2 NLM 
650 7 |a Isoenzymes  |2 NLM 
650 7 |a Photosystem II Protein Complex  |2 NLM 
650 7 |a Reactive Oxygen Species  |2 NLM 
650 7 |a Peroxiredoxins  |2 NLM 
650 7 |a EC 1.11.1.15  |2 NLM 
650 7 |a Superoxide Dismutase  |2 NLM 
650 7 |a EC 1.15.1.1  |2 NLM 
650 7 |a Glutathione  |2 NLM 
650 7 |a GAN16C9B8O  |2 NLM 
650 7 |a Ascorbic Acid  |2 NLM 
650 7 |a PQ6CK8PD0R  |2 NLM 
700 1 |a Pérez-Bueno, M L  |e verfasserin  |4 aut 
700 1 |a García-Fontana, B  |e verfasserin  |4 aut 
700 1 |a Camejo, D  |e verfasserin  |4 aut 
700 1 |a Jiménez, A  |e verfasserin  |4 aut 
700 1 |a Sevilla, F  |e verfasserin  |4 aut 
700 1 |a Barón, M  |e verfasserin  |4 aut 
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