Sulphate reduction in oxic and sub-oxic North-East Atlantic sediments

N. S. Battersby, S. J. Malcolm, C. M. Brown, S. O. Stanley

    Research output: Contribution to journalArticle

    Abstract

    Oxic and sub-oxic N.-E. Atlantic sediments were examined for sulphate-reducing activity. Oxygen and/or nitrate reduction are probably the dominant mineralisation processes in the abyssal plain sediment studied. A low rate of sulphate reduction (0.1 nmol SO2-4 /ml/day) was recorded in the surface 5 cm of the continental slope sediment, together with the presence of a range of sulphate-reducing bacteria (SRB). A higher activity of sulphate reduction (2.2 nmol SO2-4 /ml/day) occurred in the continental shelf sediment which led to a small decrease in pore water sulphate and an increase in titration alkalinity. This sediment contained approx. 102-103 acetate, lactate and propionate oxidising SRB/ml. No low-Mr organic acids were detected in these sediments. However, amendment with 75 µM acetate stimulated sulphate-reducing activity in the shelf sediment. © 1985.

    Original languageEnglish
    Pages (from-to)225-228
    Number of pages4
    JournalFEMS Microbiology Letters
    Volume31
    Issue number4
    Publication statusPublished - Aug 1985

    Fingerprint

    sulfate
    shelf sediment
    sediment
    sulfate-reducing bacterium
    acetate
    abyssal plain
    organic acid
    continental slope
    alkalinity
    continental shelf
    porewater
    mineralization
    nitrate
    oxygen

    Keywords

    • low-M r organic acids
    • Malin Shelf
    • Porcupine Abyssal Plain
    • Rockall Trough
    • sulphate-reducing bacteria
    • titration alkalinity

    Cite this

    Battersby, N. S., Malcolm, S. J., Brown, C. M., & Stanley, S. O. (1985). Sulphate reduction in oxic and sub-oxic North-East Atlantic sediments. FEMS Microbiology Letters, 31(4), 225-228.
    Battersby, N. S. ; Malcolm, S. J. ; Brown, C. M. ; Stanley, S. O. / Sulphate reduction in oxic and sub-oxic North-East Atlantic sediments. In: FEMS Microbiology Letters. 1985 ; Vol. 31, No. 4. pp. 225-228.
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    abstract = "Oxic and sub-oxic N.-E. Atlantic sediments were examined for sulphate-reducing activity. Oxygen and/or nitrate reduction are probably the dominant mineralisation processes in the abyssal plain sediment studied. A low rate of sulphate reduction (0.1 nmol SO2-4 /ml/day) was recorded in the surface 5 cm of the continental slope sediment, together with the presence of a range of sulphate-reducing bacteria (SRB). A higher activity of sulphate reduction (2.2 nmol SO2-4 /ml/day) occurred in the continental shelf sediment which led to a small decrease in pore water sulphate and an increase in titration alkalinity. This sediment contained approx. 102-103 acetate, lactate and propionate oxidising SRB/ml. No low-Mr organic acids were detected in these sediments. However, amendment with 75 µM acetate stimulated sulphate-reducing activity in the shelf sediment. {\circledC} 1985.",
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    Battersby, NS, Malcolm, SJ, Brown, CM & Stanley, SO 1985, 'Sulphate reduction in oxic and sub-oxic North-East Atlantic sediments', FEMS Microbiology Letters, vol. 31, no. 4, pp. 225-228.

    Sulphate reduction in oxic and sub-oxic North-East Atlantic sediments. / Battersby, N. S.; Malcolm, S. J.; Brown, C. M.; Stanley, S. O.

    In: FEMS Microbiology Letters, Vol. 31, No. 4, 08.1985, p. 225-228.

    Research output: Contribution to journalArticle

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    AU - Battersby, N. S.

    AU - Malcolm, S. J.

    AU - Brown, C. M.

    AU - Stanley, S. O.

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    N2 - Oxic and sub-oxic N.-E. Atlantic sediments were examined for sulphate-reducing activity. Oxygen and/or nitrate reduction are probably the dominant mineralisation processes in the abyssal plain sediment studied. A low rate of sulphate reduction (0.1 nmol SO2-4 /ml/day) was recorded in the surface 5 cm of the continental slope sediment, together with the presence of a range of sulphate-reducing bacteria (SRB). A higher activity of sulphate reduction (2.2 nmol SO2-4 /ml/day) occurred in the continental shelf sediment which led to a small decrease in pore water sulphate and an increase in titration alkalinity. This sediment contained approx. 102-103 acetate, lactate and propionate oxidising SRB/ml. No low-Mr organic acids were detected in these sediments. However, amendment with 75 µM acetate stimulated sulphate-reducing activity in the shelf sediment. © 1985.

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    KW - Rockall Trough

    KW - sulphate-reducing bacteria

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    Battersby NS, Malcolm SJ, Brown CM, Stanley SO. Sulphate reduction in oxic and sub-oxic North-East Atlantic sediments. FEMS Microbiology Letters. 1985 Aug;31(4):225-228.