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Cell surface characterisation of Microcystis aeruginosa and Chlorella vulgaris.
J Colloid Interface Sci. 2010 Feb 15; 342(2):293-9.JC

Abstract

According to previous studies, Microcystis aeruginosa, a picocyanobacteria, is more sensitive to copper than the other phytoplanktonic species such as Chlorella vulgaris a chlorophycea. An experimental study was carried out to determine the cell wall characteristics of both species. The cell surface of M. aeruginosa presented a lower hydrophobic character and a more negative surface charge over a larger pH range than for C. vulgaris, according to hydrophobicity and zeta potentials measurements. By combining infrared spectroscopy data and potentiometric titrations, the total concentration of functional groups determined for M. aeruginosa (1.60x10(-3)mol/g), as well as the number of carboxyl groups, was higher than for the C. vulgaris ones (0.22x10(-3)mol/g). The differences in surface properties, as shown by chemical, physicochemical and spectroscopic measurements would justify the differences in sensitivities to copper ions up-take between the two specimens.

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Authors+Show Affiliations

Hadjoudja S
Université de Limoges, GRESE EA 4330, 123 Avenue Albert Thomas, 87060 Limoges, France.
Deluchat V
No affiliation info available
Baudu M
No affiliation info available

MeSH

Cell WallChlorella vulgarisCopperHydrophobic and Hydrophilic InteractionsMicrocystisPotentiometrySpectroscopy, Fourier Transform Infrared

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

20004408

Citation

Hadjoudja, S, et al. "Cell Surface Characterisation of Microcystis Aeruginosa and Chlorella Vulgaris." Journal of Colloid and Interface Science, vol. 342, no. 2, 2010, pp. 293-9.
Hadjoudja S, Deluchat V, Baudu M. Cell surface characterisation of Microcystis aeruginosa and Chlorella vulgaris. J Colloid Interface Sci. 2010;342(2):293-9.
Hadjoudja, S., Deluchat, V., & Baudu, M. (2010). Cell surface characterisation of Microcystis aeruginosa and Chlorella vulgaris. Journal of Colloid and Interface Science, 342(2), 293-9. https://doi.org/10.1016/j.jcis.2009.10.078
Hadjoudja S, Deluchat V, Baudu M. Cell Surface Characterisation of Microcystis Aeruginosa and Chlorella Vulgaris. J Colloid Interface Sci. 2010 Feb 15;342(2):293-9. PubMed PMID: 20004408.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Cell surface characterisation of Microcystis aeruginosa and Chlorella vulgaris. AU - Hadjoudja,S, AU - Deluchat,V, AU - Baudu,M, Y1 - 2009/11/10/ PY - 2009/08/25/received PY - 2009/10/29/revised PY - 2009/10/29/accepted PY - 2009/12/17/entrez PY - 2009/12/17/pubmed PY - 2010/5/27/medline SP - 293 EP - 9 JF - Journal of colloid and interface science JO - J Colloid Interface Sci VL - 342 IS - 2 N2 - According to previous studies, Microcystis aeruginosa, a picocyanobacteria, is more sensitive to copper than the other phytoplanktonic species such as Chlorella vulgaris a chlorophycea. An experimental study was carried out to determine the cell wall characteristics of both species. The cell surface of M. aeruginosa presented a lower hydrophobic character and a more negative surface charge over a larger pH range than for C. vulgaris, according to hydrophobicity and zeta potentials measurements. By combining infrared spectroscopy data and potentiometric titrations, the total concentration of functional groups determined for M. aeruginosa (1.60x10(-3)mol/g), as well as the number of carboxyl groups, was higher than for the C. vulgaris ones (0.22x10(-3)mol/g). The differences in surface properties, as shown by chemical, physicochemical and spectroscopic measurements would justify the differences in sensitivities to copper ions up-take between the two specimens. SN - 1095-7103 UR - https://www.unboundmedicine.com/medline/citation/20004408/Cell_surface_characterisation_of_Microcystis_aeruginosa_and_Chlorella_vulgaris_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0021-9797(09)01414-3 DB - PRIME DP - Unbound Medicine ER -