The sensitivity of two Monoraphidium species to zinc

their possible future role in bioremediation

I. Bácsi, Z. Novák, M. Jánószky, V. B-Béres, I. Grigorszky, S. A. Nagy

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Effects of zinc on growth, cell morphology, oxidative stress responses and zinc removal activity of two common phytoplankton species, Monoraphidium pusillum (Printz) Komárková-Legnerová and Monoraphidium griffithii (Berkeley) Komárková-Legnerová were investigated at a concentration range of 0.2–160 mg l−1 zinc. Cell densities and chlorophyll content decreased compared with controls in cultures of both species, effective concentrations causing 50 % growth inhibition within 72 h on the basis of cell numbers were 33.69 and 25.63 mg l−1 zinc for M. pusillum and M. griffithii, respectively. Changes in cell morphology and elevated lipid peroxidation levels appeared in zinc-treated cultures of both species, but only at higher (>10 mg l−1) zinc concentrations. The most effective zinc removal appeared at 20 and 10 mg l−1 zinc concentration for M. pusillum and M. griffithii, respectively. Removed zinc is mainly bound on the cell surface in the case of both species. This study provides new data for the zinc tolerance and zinc removal ability of the green algae M. pusillum and M. griffithii and shows that green algal species common in surface waters could have zinc tolerance and zinc-binding abilities, which makes them feasible in treatment of waters contaminated with 10–20 mg l−1 zinc.

Original languageEnglish
Pages (from-to)2455-2466
Number of pages12
JournalInternational Journal of Environmental Science and Technology
Volume12
Issue number8
DOIs
Publication statusPublished - Aug 15 2015

Fingerprint

Monoraphidium
Environmental Biodegradation
Bioremediation
bioremediation
Zinc
zinc
Cell Count
tolerance
cells
Phytoplankton
Chlorophyta
Oxidative stress
Water Purification
binding capacity
Cell growth
Chlorophyll

Keywords

  • Common green algal species
  • Growth inhibitions
  • Lipid peroxidation
  • Morphological changes
  • Removal
  • Zinc

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Environmental Chemistry
  • Environmental Engineering

Cite this

The sensitivity of two Monoraphidium species to zinc : their possible future role in bioremediation. / Bácsi, I.; Novák, Z.; Jánószky, M.; B-Béres, V.; Grigorszky, I.; Nagy, S. A.

In: International Journal of Environmental Science and Technology, Vol. 12, No. 8, 15.08.2015, p. 2455-2466.

Research output: Contribution to journalArticle

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