The effect of soil risk element contamination level on the element contents in Ocimum basilicum L.
The effect of soil risk element contamination level on the element contents in Ocimum basilicum L.
复制标题
土壤风险元素污染水平对罗勒元素含量的影响。
DOI：
10.1515/aep-2015-0018
复制
发表时间：
2015
影响因子：
1.5
通讯作者：
P. Tlustoš
中科院分区：
文献类型：
--
作者：
Petra Ruzicková;J. Száková;J. Havlík;P. Tlustoš
摘要红罗勒（Ocimum basilicum L.）CV.在模型盆栽实验中，在代表捷克共和国Pagríbram附近前矿区土壤浓度水平的逐步浓度的砷、镉和铅溶液的土壤中培养红鲁宾。添加到土壤中的元素水平达到40毫克镉，100毫克砷，和2000毫克铅每公斤土壤。此外，必需的宏量和微量元素以及花青素含量进行了调查，以评估其与风险元素的潜在相互作用。在植被期结束时测定的土壤中可提取的元素部分根据单个元素而不同。植物有效态（0.11 M CH_3COOH可提取态）Cd含量占添加Cd的70-100%，而Pb的移动的部分不超过1%。植物中有害元素含量反映了土壤中有害元素含量的增加。优势元素部分保留在植物根系中，表明该植物地上生物量的风险元素转运能力有限。虽然风险元素含量的修正植物显着增加，没有明显的植物毒性症状发生。然而，风险元素含量的增加对必需元素摄取的影响进行了评估。考虑到元素间的关系，硫含量升高被认为是在修正的植物，表明其可能的作用，植物螯合素的合成。此外，植物生物量中的钼含量下降，增加风险元素的植物吸收证实砷钼和镉钼拮抗作用。植物生物量中花青素含量的增加证实了花青素在风险元素污染植物解毒机制中的可能作用，并表明花青素色素对污染地区植物对风险元素耐受性的重要性。
Abstract Red basil (Ocimum basilicum L.) cv. Red Rubin was cultivated in model pot experiment in the soil amended by arsenic, cadmium and lead solutions in stepwise concentrations representing the soil concentration levels of former mining area in the vicinity of Příbram, Czech Republic. The element levels added to the soil reached up to 40 mg Cd, 100 mg As, and 2000 mg Pb per kg of soil. Moreover, essential macro-and microelements as well as cyanidine contents were investigated to assess their potential interactions with the risk elements. The extractable element portions in soils determined at the end of vegetation period differed according to the individual elements. Whereas the plant-available (extractable with 0.11M CH3COOH) content of Cd represented 70-100% of the added Cd, the mobile portion of Pb did not exceed 1%. The risk element content in plants reflected the increasing element contents in soil. The dominant element portions remained in plant roots indicating the limited translocation ability of risk elements to the aboveground biomass of this plant species. Although the risk element contents in amended plants significantly increased, no visible symptoms of phytotoxicity occurred. However, the effect of enhanced risk element contents on the essential element uptake was assessed. Considering inter-element relationships, elevated sulphur levels were seen in amended plants, indicating its possible role of phytochelatin synthesis in the plants. Moreover, the molybdenum contents in plant biomass dropped down with increasing risk element uptake by plants confirming As-Mo and Cd-Mo antagonism. The increasing content of cyanidine in the plant biomass confirmed possible role of anthocyanins in detoxification mechanism of risk element contaminated plants and suggested the importance of anthocyanin pigments for risk element tolerance of plants growing in contaminated areas.