Role of bacteria and bacterial exopolymer in the attachment of Achnanthes longipes (Bacillariophyceae)

B. Gawne, Y. Wang, K.D. Hoagland, M.R. Gretz

    Research output: Contribution to journalArticle

    24 Citations (Scopus)

    Abstract

    The attachment of diatoms to surfaces is an important and poorly understood step in the development of biofouling communities. Experiments were performed in vitro on a common fouling diatom (Achnanthes longipes) to determine the influence of the base material and bacterial conditioning on diatom attachment. The first series of experiments compared attachment of A. longipes to four different base materials, and the influence of a bacterial film on attachment to these materials. A. longipes preferentially attached to polystyrene, a hydrophobic surface, but was inhibited by the presence of a bacterial biofilm. On other surfaces, bacteria either facilitated or had no effect on algal attachment. The second series of experiments found no difference in the attachment of A. longipes to a surface covered with bacterial exopolymer compared to a surface with a film of living bacteria. Attachment of A. longipes was found to vary depending on the conditions under which the bacterial film developed and the species of bacteria within the film. These results help to illustrate the complexity of the relationship between surfaces and attaching organisms and show that bacteria may either facilitate, have no effect or inhibit attachment by diatoms. The mechanisms underlying these patterns require further investigation.
    Original languageEnglish
    Pages (from-to)137-156
    Number of pages20
    JournalBiofouling
    Volume13
    Issue number2
    Publication statusPublished - 1998

    Fingerprint

    exopolymer
    Achnanthes
    Diatoms
    Bacillariophyceae
    Bacteria
    films (materials)
    bacterium
    bacteria
    diatom
    Biofouling
    Polystyrenes
    Biofilms
    biofouling
    experiment
    polystyrenes
    fouling
    conditioning
    biofilm
    organisms
    material

    Cite this

    Gawne, B., Wang, Y., Hoagland, K. D., & Gretz, M. R. (1998). Role of bacteria and bacterial exopolymer in the attachment of Achnanthes longipes (Bacillariophyceae). Biofouling, 13(2), 137-156.
    Gawne, B. ; Wang, Y. ; Hoagland, K.D. ; Gretz, M.R. / Role of bacteria and bacterial exopolymer in the attachment of Achnanthes longipes (Bacillariophyceae). In: Biofouling. 1998 ; Vol. 13, No. 2. pp. 137-156.
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    abstract = "The attachment of diatoms to surfaces is an important and poorly understood step in the development of biofouling communities. Experiments were performed in vitro on a common fouling diatom (Achnanthes longipes) to determine the influence of the base material and bacterial conditioning on diatom attachment. The first series of experiments compared attachment of A. longipes to four different base materials, and the influence of a bacterial film on attachment to these materials. A. longipes preferentially attached to polystyrene, a hydrophobic surface, but was inhibited by the presence of a bacterial biofilm. On other surfaces, bacteria either facilitated or had no effect on algal attachment. The second series of experiments found no difference in the attachment of A. longipes to a surface covered with bacterial exopolymer compared to a surface with a film of living bacteria. Attachment of A. longipes was found to vary depending on the conditions under which the bacterial film developed and the species of bacteria within the film. These results help to illustrate the complexity of the relationship between surfaces and attaching organisms and show that bacteria may either facilitate, have no effect or inhibit attachment by diatoms. The mechanisms underlying these patterns require further investigation.",
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    Gawne, B, Wang, Y, Hoagland, KD & Gretz, MR 1998, 'Role of bacteria and bacterial exopolymer in the attachment of Achnanthes longipes (Bacillariophyceae)', Biofouling, vol. 13, no. 2, pp. 137-156.

    Role of bacteria and bacterial exopolymer in the attachment of Achnanthes longipes (Bacillariophyceae). / Gawne, B.; Wang, Y.; Hoagland, K.D.; Gretz, M.R.

    In: Biofouling, Vol. 13, No. 2, 1998, p. 137-156.

    Research output: Contribution to journalArticle

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    N2 - The attachment of diatoms to surfaces is an important and poorly understood step in the development of biofouling communities. Experiments were performed in vitro on a common fouling diatom (Achnanthes longipes) to determine the influence of the base material and bacterial conditioning on diatom attachment. The first series of experiments compared attachment of A. longipes to four different base materials, and the influence of a bacterial film on attachment to these materials. A. longipes preferentially attached to polystyrene, a hydrophobic surface, but was inhibited by the presence of a bacterial biofilm. On other surfaces, bacteria either facilitated or had no effect on algal attachment. The second series of experiments found no difference in the attachment of A. longipes to a surface covered with bacterial exopolymer compared to a surface with a film of living bacteria. Attachment of A. longipes was found to vary depending on the conditions under which the bacterial film developed and the species of bacteria within the film. These results help to illustrate the complexity of the relationship between surfaces and attaching organisms and show that bacteria may either facilitate, have no effect or inhibit attachment by diatoms. The mechanisms underlying these patterns require further investigation.

    AB - The attachment of diatoms to surfaces is an important and poorly understood step in the development of biofouling communities. Experiments were performed in vitro on a common fouling diatom (Achnanthes longipes) to determine the influence of the base material and bacterial conditioning on diatom attachment. The first series of experiments compared attachment of A. longipes to four different base materials, and the influence of a bacterial film on attachment to these materials. A. longipes preferentially attached to polystyrene, a hydrophobic surface, but was inhibited by the presence of a bacterial biofilm. On other surfaces, bacteria either facilitated or had no effect on algal attachment. The second series of experiments found no difference in the attachment of A. longipes to a surface covered with bacterial exopolymer compared to a surface with a film of living bacteria. Attachment of A. longipes was found to vary depending on the conditions under which the bacterial film developed and the species of bacteria within the film. These results help to illustrate the complexity of the relationship between surfaces and attaching organisms and show that bacteria may either facilitate, have no effect or inhibit attachment by diatoms. The mechanisms underlying these patterns require further investigation.

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