39mg of Au g−1 dry weight when exposed to the 100ppm
Au solution after 24 h exposure, whereas BJ shoots accumulated
a maximum of 6mgAu g−1 dry weight. After 24 h exposure, MS
roots accumulated a maximum of 48mgAu g−1 dry weight when
exposed to 100ppm Au solution, and MS shoots accumulated
12mgAu g−1 dry weight of Au. Roots of BJ retained more Au than
roots of MS at higher concentrations (1000 and 10,000 ppm).
Metals which play no part in a plant’s normal biological function
(including Au) are either discarded into the leaves or rootlets This