IMIS | Lifewatch regional portal

You are here


[ report an error in this record ]basket (0): add | show Print this page

The effect of chronic and acute low pH on the intracellular DMSP production and epithelial cell morphology of red coralline algae
Burdett, H.L.; Aloisio, E.; Calosi, P.; Findlay, H.S.; Widdicombe, S.; Hatton, A.D.; Kamenos, N.A. (2012). The effect of chronic and acute low pH on the intracellular DMSP production and epithelial cell morphology of red coralline algae. Mar. Biol. Res. 8(8): 756-763.
In: Marine Biology Research. Taylor & Francis: Oslo; Basingstoke. ISSN 1745-1000; e-ISSN 1745-1019, more
Peer reviewed article  

Available in  Authors 

    Chemical compounds > Carbon compounds > Atmospheric gases > Carbon dioxide
    Climatic changes
    Water bodies > Oceans
    Lithothamnion glaciale Kjellman, 1883 [WoRMS]
Author keywords
    Dimethylsulphide; Maerl; Rhodolith

Authors  Top 
  • Burdett, H.L.
  • Aloisio, E.
  • Calosi, P.
  • Findlay, H.S.
  • Widdicombe, S., more
  • Hatton, A.D.
  • Kamenos, N.A.

    The release of dimethylsulphoniopropionate (DMSP) by marine algae has major impacts on the global sulphur cycle and may influence local climate through the formation of dimethylsulphide (DMS). However, the effect of global change on DMSP/DMS (DMS(P)) production by algae is not well understood. This study examined the effect of low pH on DMS(P) production and epithelial cell morphology of the free-living red coralline alga Lithothamnion glaciale. Three pH treatments were used in the 80-day experiment: (1) current pH level (8.18, control), (2) low, chronic pH representing a 2100 ocean acidification (OA) scenario (7.70) and (3) low, acute pH (7.75, with a 3-day spike to 6.47), representing acute variable conditions that might be associated with leaks from carbon capture and storage infrastructure, at CO2 vent sites or in areas of upwelling. DMS(P) production was not significantly enhanced under low, stable pH conditions, indicating that red coralline algae may have some resilience to OA. However, intracellular and water column DMS(P) concentrations were significantly higher than the control when pH was acutely spiked. Cracks were observed between the cell walls of the algal skeleton in both low pH treatments. It is proposed that this structural change may cause membrane damage that allows DMS(P) to leak from the cells into the water column, with subsequent implications for the cycling of DMS(P) in coralline algae habitats.

All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Authors