Plant molecular strategies in response to soil contaminants

植物响应土壤污染物的分子策略

• 批准号: RGPIN-2017-05452
• 负责人: Pitre, Frédéric
• 金额: $ 1.82万
• 依托单位: Université de Montréal
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=630124
• 关键词: Plant; molecular; strategies; response; soil

Past and current industrial activities, such as mining and petrochemical refinement, have had major deleterious effects on the environment, leaving large areas of degraded and contaminated lands throughout Canada. The majority of contaminated sites is affected by both organic and inorganic compounds. The predominant organic contaminants include petroleum by-products, volatile organic compounds, aromatic hydrocarbons and pesticides. Common inorganic contaminants are metals and metalloids, referred to as trace elements. Phytoremediation is the environmental technique that aims to take advantage of these natural mechanisms in plants and of their associated properties of accumulation or degradation of soil contaminants. For plants growing in such polluted soils the potentially toxic contaminants induce physiological and molecular changes that are characteristic of abiotic stress. Although their co-occurrence is well known, their respective role and sequence (antecedent, mechanism and output) remain poorly described.

过去和目前的工业活动，如采矿和石油化工提炼，对环境产生了重大的有害影响，在加拿大各地留下了大片退化和污染的土地。大多数受污染的场地都受到有机和无机化合物的影响。主要的有机污染物包括石油副产品、挥发性有机化合物、芳香烃和杀虫剂。常见的无机污染物是金属和类金属，称为微量元素。植物修复是一种环境技术，旨在利用植物的这些自然机制及其相关的土壤污染物积累或降解特性。对于生长在这种污染土壤中的植物来说，潜在的有毒污染物引起了具有非生物胁迫特征的生理和分子变化。虽然它们的共同出现是众所周知的，其各自的作用和顺序（前因，机制和输出）仍然很少描述。