Impact of cadmium on forage kale (Brassica oleracea var. viridis cv "Prover") after 3-,10-and 56-day exposure to a Cd-spiked field soil
Impact of cadmium on forage kale (Brassica oleracea var. viridis cv "Prover") after 3-,10-and 56-day exposure to a Cd-spiked field soil
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DOI：
10.1007/s11356-018-1636-8
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发表时间：
2021-05-01
影响因子：
5.8
通讯作者：
Cuny, Damien
中科院分区：
文献类型：
--
作者：
Bernard, Fabien;Dumez, Sylvain;Cuny, Damien
镉（Cd）是一种对生物体具有高毒性的元素，广泛存在于金属污染的土壤中。植物作为能够在这些污染区域生长的生物，对Cd污染具有一定的保护机制。在植物界中，菊科包括已知能够耐受Cd并在其组织中积累Cd的物种。以甘蓝（Brassica oleracea var.研究了不同浓度Cd（2.5 ~ 20 mg kg（-1））人工污染土壤对“Prover”绿球藻（viridis cv“Prover”）的生命性状、光合作用、抗氧化酶活性的影响。通过彗星试验和8-OHdG水平的免疫检测来量化金属积累以及DNA损伤。全球范围内，B。甘蓝对Cd的耐受性相对较好。彗星试验和8-OHdG检测显示有一定程度的DNA损伤，但不显著。根据金属富集分析，B.甘蓝变种viridis cv Prover可能是污染地区替代种植的良好候选者。
Cadmium (Cd) is a highly toxic element for living organisms and is widespread in metal-contaminated soils. As organisms which can grow up on these polluted areas, plants have some protection mechanisms against Cd issues. Among the plant kingdom, the Brassicaceae family includes species which are known to be able to tolerate and accumulate Cd in their tissues. In this study, Brassica oleracea var. viridis cv "Prover" was exposed to a range of artificially Cd-contaminated soils (from 2.5 up to 20 mg kg(-1)) during 3, 10, and 56 days and the effects on life traits, photosynthesis activity, antioxidant enzymatic activities were studied. Metal accumulation was quantified, as well as DNA damage, by means of the comet assay and immunodetection of 8-OHdG levels. Globally, B. oleracea was relatively tolerant to those Cd exposures. However, comet assay and detection of 8-OHdG revealed some DNA damage but which are not significant. According to metal accumulation analysis, B. oleracea var. viridis cv Prover could be a good candidate for alternative growing in contaminated areas.