Cobalt hyperaccumulators

An aqueous extract from a cobalt hyperaccumulator (Morrison et al., 1981), Haumaniastrum robertii, contained 14% Co. Since the molecular weight was about 5200 per Co, it could not be proteinaceous. Electrophoresis gave a complicated pattern, and gas-liquid chromatography following methylation gave 2 peaks which were not identified. 

Fig. 4-2. World map showing the locations of hyperaccumulators of copper, cobalt, nickel, and zinc.

Table 4-2. Hyperaccumulators of copper and cobalt (maxium concentrations in pg g 1 dry weight).

Brooks RR, Reeves RD, Morrison RS and Malaisse F (1980) Hyperaccumulation of copper and cobalt. A review. Bull Soc R Bot Belg 113 166-172. 

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