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Boron Reduced Copper Excess-Induced Oxidative Damage in Citrus sinensis by Modulating Reactive Oxygen Species and Methylglyoxal Formation and Their Detoxification Systems.
Chen, Xu-Feng; Chen, Huan-Huan; Huang, Wei-Lin; Huang, Wei-Tao; Huang, Zeng-Rong; Yang, Lin-Tong; Ye, Xin; Chen, Li-Song.
Afiliación
  • Chen XF; College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
  • Chen HH; College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
  • Huang WL; College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
  • Huang WT; College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
  • Huang ZR; College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
  • Yang LT; College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
  • Ye X; College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
  • Chen LS; College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
Antioxidants (Basel) ; 13(3)2024 Feb 22.
Article en En | MEDLINE | ID: mdl-38539803
ABSTRACT
Citrus is mainly cultivated in acid soil with low boron (B) and high copper (Cu). In this study, Citrus sinensis seedlings were submitted to 0.5 (control) or 350 µM Cu (Cu excess or Cu exposure) and 2.5, 10, or 25 µM B for 24 weeks. Thereafter, H2O2 production rate (HPR), superoxide production rate (SAPR), malondialdehyde, methylglyoxal, and reactive oxygen species (ROS) and methylglyoxal detoxification systems were measured in leaves and roots in order to test the hypothesis that B addition mitigated Cu excess-induced oxidative damage in leaves and roots by reducing the Cu excess-induced formation and accumulation of ROS and MG and by counteracting the impairments of Cu excess on ROS and methylglyoxal detoxification systems. Cu and B treatments displayed an interactive influence on ROS and methylglyoxal formation and their detoxification systems. Cu excess increased the HPR, SAPR, methylglyoxal level, and malondialdehyde level by 10.9% (54.3%), 38.9% (31.4%), 50.3% (24.9%), and 312.4% (585.4%), respectively, in leaves (roots) of 2.5 µM B-treated seedlings, while it only increased the malondialdehyde level by 48.5% (97.8%) in leaves (roots) of 25 µM B-treated seedlings. Additionally, B addition counteracted the impairments of Cu excess on antioxidant enzymes, ascorbate-glutathione cycle, sulfur metabolism-related enzymes, sulfur-containing compounds, and methylglyoxal detoxification system, thereby protecting the leaves and roots of Cu-exposed seedlings against oxidative damage via the coordinated actions of ROS and methylglyoxal removal systems. Our findings corroborated the hypothesis that B addition alleviated Cu excess-induced oxidative damage in leaves and roots by decreasing the Cu excess-induced formation and accumulation of ROS and MG and by lessening the impairments of Cu excess on their detoxification systems. Further analysis indicated that the pathways involved in the B-induced amelioration of oxidative stress caused by Cu excess differed between leaves and roots.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Antioxidants (Basel) Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Antioxidants (Basel) Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Suiza