Effect of cadmium on the accumulation of arsenic in a marine green alga, Dunaliellasp.

Osamu Takimura, Hiroyuki Fuse, Yukiho Yamaoka

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

To investigate the effect of cadmium on the accumulation of arsenic by Dunaliella sp., the arsenic accumulated in the alga was determined as a function of time for coexistence of the algae with arsenic and cadmium, with batch methodology. Growth of Dunaliella sp. was affected by addition of arsenic (Na2HAsO4.7H2O) and cadmium (CdCl.2.5H2O). Growth inhibition of Dunaliella sp. was accelerated by coexistence of arsenic and cadmium. The content of arsenic in Dunaliella sp. became a maximum at 15 h after exposure. The arsenic content in the cells was influenced by addition of cadmium to the solution; the arsenic content in the alga derived from growth in a 10 mg As dm −3 solution decreased from 2.7 mg g−1 in the absence of cadmium to 0.35 mg g−1 for the addition of 100 mg Cd dm−3. Dunaliella sp. accumulated cadmium in large quantities but, in conditions of coexistence with arsenic and cadmium, the cadmium content in cells decreased with an increase in the concentration of arsenic in the growth medium Cadmium accumulation by Dunaliella sp. was observed in dead cells although arsenic accumulation was not observed. About 85% of arsenic in the cells was in the water‐soluble fraction. On the other hand, about 42% of cadmium in the cells was in the water‐soluble fraction, and about 55% was in a fraction soluble in cold trichloroacetic acid.

Original languageEnglish
Pages (from-to)363-367
Number of pages5
JournalApplied Organometallic Chemistry
Volume6
Issue number4
DOIs
Publication statusPublished - 1992
Externally publishedYes

Fingerprint

Arsenic
Algae
Cadmium
Trichloroacetic Acid

Keywords

  • accumulation
  • arsenic
  • cadmium
  • Dunaliellasp.
  • growth inhibition
  • Marine green alga
  • water‐soluble fraction

ASJC Scopus subject areas

  • Chemistry(all)
  • Inorganic Chemistry

Cite this

Effect of cadmium on the accumulation of arsenic in a marine green alga, Dunaliellasp. / Takimura, Osamu; Fuse, Hiroyuki; Yamaoka, Yukiho.

In: Applied Organometallic Chemistry, Vol. 6, No. 4, 1992, p. 363-367.

Research output: Contribution to journalArticle

@article{f82a27bbd44c47ceb46c33cd24427bba,
title = "Effect of cadmium on the accumulation of arsenic in a marine green alga, Dunaliellasp.",
abstract = "To investigate the effect of cadmium on the accumulation of arsenic by Dunaliella sp., the arsenic accumulated in the alga was determined as a function of time for coexistence of the algae with arsenic and cadmium, with batch methodology. Growth of Dunaliella sp. was affected by addition of arsenic (Na2HAsO4.7H2O) and cadmium (CdCl.2.5H2O). Growth inhibition of Dunaliella sp. was accelerated by coexistence of arsenic and cadmium. The content of arsenic in Dunaliella sp. became a maximum at 15 h after exposure. The arsenic content in the cells was influenced by addition of cadmium to the solution; the arsenic content in the alga derived from growth in a 10 mg As dm −3 solution decreased from 2.7 mg g−1 in the absence of cadmium to 0.35 mg g−1 for the addition of 100 mg Cd dm−3. Dunaliella sp. accumulated cadmium in large quantities but, in conditions of coexistence with arsenic and cadmium, the cadmium content in cells decreased with an increase in the concentration of arsenic in the growth medium Cadmium accumulation by Dunaliella sp. was observed in dead cells although arsenic accumulation was not observed. About 85{\%} of arsenic in the cells was in the water‐soluble fraction. On the other hand, about 42{\%} of cadmium in the cells was in the water‐soluble fraction, and about 55{\%} was in a fraction soluble in cold trichloroacetic acid.",
keywords = "accumulation, arsenic, cadmium, Dunaliellasp., growth inhibition, Marine green alga, water‐soluble fraction",
author = "Osamu Takimura and Hiroyuki Fuse and Yukiho Yamaoka",
year = "1992",
doi = "10.1002/aoc.590060409",
language = "English",
volume = "6",
pages = "363--367",
journal = "Applied Organometallic Chemistry",
issn = "0268-2605",
publisher = "John Wiley and Sons Ltd",
number = "4",

}

TY - JOUR

T1 - Effect of cadmium on the accumulation of arsenic in a marine green alga, Dunaliellasp.

AU - Takimura, Osamu

AU - Fuse, Hiroyuki

AU - Yamaoka, Yukiho

PY - 1992

Y1 - 1992

N2 - To investigate the effect of cadmium on the accumulation of arsenic by Dunaliella sp., the arsenic accumulated in the alga was determined as a function of time for coexistence of the algae with arsenic and cadmium, with batch methodology. Growth of Dunaliella sp. was affected by addition of arsenic (Na2HAsO4.7H2O) and cadmium (CdCl.2.5H2O). Growth inhibition of Dunaliella sp. was accelerated by coexistence of arsenic and cadmium. The content of arsenic in Dunaliella sp. became a maximum at 15 h after exposure. The arsenic content in the cells was influenced by addition of cadmium to the solution; the arsenic content in the alga derived from growth in a 10 mg As dm −3 solution decreased from 2.7 mg g−1 in the absence of cadmium to 0.35 mg g−1 for the addition of 100 mg Cd dm−3. Dunaliella sp. accumulated cadmium in large quantities but, in conditions of coexistence with arsenic and cadmium, the cadmium content in cells decreased with an increase in the concentration of arsenic in the growth medium Cadmium accumulation by Dunaliella sp. was observed in dead cells although arsenic accumulation was not observed. About 85% of arsenic in the cells was in the water‐soluble fraction. On the other hand, about 42% of cadmium in the cells was in the water‐soluble fraction, and about 55% was in a fraction soluble in cold trichloroacetic acid.

AB - To investigate the effect of cadmium on the accumulation of arsenic by Dunaliella sp., the arsenic accumulated in the alga was determined as a function of time for coexistence of the algae with arsenic and cadmium, with batch methodology. Growth of Dunaliella sp. was affected by addition of arsenic (Na2HAsO4.7H2O) and cadmium (CdCl.2.5H2O). Growth inhibition of Dunaliella sp. was accelerated by coexistence of arsenic and cadmium. The content of arsenic in Dunaliella sp. became a maximum at 15 h after exposure. The arsenic content in the cells was influenced by addition of cadmium to the solution; the arsenic content in the alga derived from growth in a 10 mg As dm −3 solution decreased from 2.7 mg g−1 in the absence of cadmium to 0.35 mg g−1 for the addition of 100 mg Cd dm−3. Dunaliella sp. accumulated cadmium in large quantities but, in conditions of coexistence with arsenic and cadmium, the cadmium content in cells decreased with an increase in the concentration of arsenic in the growth medium Cadmium accumulation by Dunaliella sp. was observed in dead cells although arsenic accumulation was not observed. About 85% of arsenic in the cells was in the water‐soluble fraction. On the other hand, about 42% of cadmium in the cells was in the water‐soluble fraction, and about 55% was in a fraction soluble in cold trichloroacetic acid.

KW - accumulation

KW - arsenic

KW - cadmium

KW - Dunaliellasp.

KW - growth inhibition

KW - Marine green alga

KW - water‐soluble fraction

UR - http://www.scopus.com/inward/record.url?scp=84990499531&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84990499531&partnerID=8YFLogxK

U2 - 10.1002/aoc.590060409

DO - 10.1002/aoc.590060409

M3 - Article

VL - 6

SP - 363

EP - 367

JO - Applied Organometallic Chemistry

JF - Applied Organometallic Chemistry

SN - 0268-2605

IS - 4

ER -