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Effects of arsenic on the organic component of the alga Dunaliella salina
Author(s) -
Yamaoka Yukiho,
Takimura Osamu,
Fuse Hiroyuki,
Kamimura Kazuo
Publication year - 1992
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.590060408
Subject(s) - arsenic , dunaliella salina , chemistry , algae , environmental chemistry , phosphorus , nitrogen , seawater , botany , organic chemistry , ecology , biology
The unicellular marine alga, Dunaliella salina 19/30 was grown in seawater containing an inorganic arsenic concentration (Na 2 HAsO 4 ) up to 2000 mg dm −3 . The cells survived even at 5000 mg dm −3 . The arsenic concentration of the cells increased with an increase of the surrounding arsenic concentration. Arsenic in D. salina was also greatly affected by addition of phosphorus. The arsenic‐tolerance behavior of D. salina seemed to suggest that the algae have a function to prevent accumulation of inorganic arsenic by increasing the β‐carotene, fatty‐acid (C 18:1 , C 18:3 ) and water‐extractable carbohydrate content in the cells. Arsenic accumulation also rose steadily with an increase in the nitrogen concentration in the medium.