Gratão Priscila L, Polle Andrea, Lea Peter J, Azevedo Ricardo A
Departamento de Genética, Escola Superior de Agricultura Luiz de Queiroz, Universidade de São Paulo, Piracicaba CEP 13418-900, SP, Brazil.
Forstbotanisches Institut, Universität Göttingen, Büsgenweg 2, 37077 Göttingen, Germany.
Funct Plant Biol. 2005 Jul;32(6):481-494. doi: 10.1071/FP05016.
The contamination of soils and water with metals has created a major environmental problem, leading to considerable losses in plant productivity and hazardous health effects. Exposure to toxic metals can intensify the production of reactive oxygen species (ROS), which are continuously produced in both unstressed and stressed plants cells. Some of the ROS species are highly toxic and must be detoxified by cellular stress responses, if the plant is to survive and grow. The aim of this review is to assess the mode of action and role of antioxidants in protecting plants from stress caused by the presence of heavy metals in the environment.
土壤和水体的金属污染已造成一个重大的环境问题，导致植物生产力大幅下降并产生有害健康影响。接触有毒金属会加剧活性氧（ROS）的产生，活性氧在未受胁迫和受胁迫的植物细胞中都会持续产生。如果植物要存活和生长，部分活性氧具有高毒性，必须通过细胞应激反应进行解毒。本综述的目的是评估抗氧化剂在保护植物免受环境中重金属存在所导致的胁迫方面的作用方式和作用。
