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Uptake, translocation and accumulation of nickel and cobalt in Berkheya coddii, a 'metal crop' from South Africa.
Metallomics ( IF 2.9 ) Pub Date : 2020-06-17 , DOI: 10.1039/d0mt00099j Marie Rue 1 , Adrian L D Paul , Guillaume Echevarria , Antony van der Ent , Marie-Odile Simonnot , Jean Louis Morel
Metallomics ( IF 2.9 ) Pub Date : 2020-06-17 , DOI: 10.1039/d0mt00099j Marie Rue 1 , Adrian L D Paul , Guillaume Echevarria , Antony van der Ent , Marie-Odile Simonnot , Jean Louis Morel
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Hyperaccumulator plants have the ability to efficiently concentrate metallic elements, e.g. nickel, from low-grade sources into their living biomass. Although the majority of nickel hyperaccumulator plant species restrict cobalt uptake, some species are able to co-accumulate cobalt when growing in ultramafic soils. The asteraceous perennial herb Berkheya coddii from South Africa is one of the most promising agromining crops known globally. It may accumulate nickel in excess of 30 000 μg g−1 in dry leaves, while co-accumulating up to 600 μg g−1 cobalt. This study aimed to elucidate the interactions between nickel and cobalt for uptake by and translocation into B. coddii through a pot experiment including various cobalt/nickel treatment combinations in soil, after which uptake and localisation were recorded. Cobalt in the substrate limits nickel uptake by B. coddii plants and is mainly retained in the basal leaves in contrast to Ni that is rapidly transferred to the top of the plant. B. coddii was more tolerant to high Ni concentration, whether in the substrate or internally but remains a promising crop which could be used, with suitable agronomic measures and practices, for cobalt agromining in areas with high soil cobalt but low soil nickel. A yield of 77 kg ha−1 nickel and 16.5 kg ha−1 cobalt may be attainable under optimum conditions.
中文翻译：
来自南非的“金属作物” Berkheya coddii 中镍和钴的吸收、易位和积累。
超富集植物能够有效地将低品位来源的金属元素（例如镍）浓缩到其活生物质中。尽管大多数镍超富集植物物种限制了钴的吸收，但一些物种在超镁铁质土壤中生长时能够共同积累钴。来自南非的紫菀属多年生草本Berkheya coddii是全球已知的最有前途的农艺作物之一。它可能在干叶中积累超过 30 000 μg g -1 的镍，同时共同积累高达 600 μg g -1 的钴。本研究旨在阐明镍和钴之间的相互作用以被B. coddii吸收和易位通过包括土壤中各种钴/镍处理组合的盆栽实验，然后记录吸收和定位。底物中的钴限制了B. coddii植物对镍的吸收，主要保留在基部叶中，而 Ni 则迅速转移到植物顶部。B. coddii对高镍浓度的耐受性更强，无论是在基质中还是在内部，但仍然是一种很有前途的作物，通过适当的农艺措施和实践，可用于在土壤钴含量高但土壤镍含量低的地区进行钴农艺。在最佳条件下可以获得77 kg ha -1镍和16.5 kg ha -1钴的产量。
更新日期：2020-08-19
中文翻译：
来自南非的“金属作物” Berkheya coddii 中镍和钴的吸收、易位和积累。
超富集植物能够有效地将低品位来源的金属元素（例如镍）浓缩到其活生物质中。尽管大多数镍超富集植物物种限制了钴的吸收，但一些物种在超镁铁质土壤中生长时能够共同积累钴。来自南非的紫菀属多年生草本Berkheya coddii是全球已知的最有前途的农艺作物之一。它可能在干叶中积累超过 30 000 μg g -1 的镍，同时共同积累高达 600 μg g -1 的钴。本研究旨在阐明镍和钴之间的相互作用以被B. coddii吸收和易位通过包括土壤中各种钴/镍处理组合的盆栽实验，然后记录吸收和定位。底物中的钴限制了B. coddii植物对镍的吸收，主要保留在基部叶中，而 Ni 则迅速转移到植物顶部。B. coddii对高镍浓度的耐受性更强，无论是在基质中还是在内部，但仍然是一种很有前途的作物，通过适当的农艺措施和实践，可用于在土壤钴含量高但土壤镍含量低的地区进行钴农艺。在最佳条件下可以获得77 kg ha -1镍和16.5 kg ha -1钴的产量。
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