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Accumulation of arsenic and selenium by Dunaliella sp.
Author(s) -
Yamaoka Yukiho,
Takimura Osamu,
Fuse Hiroyuki,
Kamimura Kazuo
Publication year - 1990
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.590040314
Subject(s) - selenium , arsenic , dunaliella , chemistry , selenate , zinc , algae , environmental chemistry , botany , biology , organic chemistry
Abstract The unicellular marine alga, Dunaliella sp., was grown in seawater containing selenium and arsenic. Dunaliella sp. readily took up selenite from the medium over a broad range of concentrations (10 −10 –10 −5 mol dm −3 ). In comparison, uptake from selenate was generally minimal. Selenite was detectable in cells within 24 h and concentrations increased gradually with time. Also iron and zinc concentrations in Dunaliella sp. cells were largely affected by addition of arsenic and gallium. Arsenic concentrations in cultures were largely correlated to the accumulation of arsenic by Dunaliella sp., but did not affect the accumulation of selenium by Dunaliella sp. This implied that the accumulation process of selenium was different from that of arsenic.