Biological oceanography: Sulphur, climate and the microbial maze

  title={Biological oceanography: Sulphur, climate and the microbial maze},
  author={Gillian Malin},
  • G. Malin
  • Published 26 June 1997
  • Environmental Science
  • Nature
A connection between climate and marine algae comes from the algal production of a sulphur-containing compound, dimethylsulphoniopropionate (DMSP). Reaction products of DMSP make their way into the atmosphere where their oxidation products influence climate. That is one context in which two new papers should be seen. One describes the biochemical pathway of DMSP synthesis in phytoplankton; the other provides insight into the release of DMSP from phytoplankton by grazing marine herbivores, and… 
Sulfur and primary production in aquatic environments: an ecological perspective
Sulfur is one of the critical elements in living matter, as it participates in several structural, metabolic and catalytic activities and can be released into the atmosphere by algal cells as dimethylsulfide, with possibly important repercussions on global climate.
Molecular mechanisms underlying roseobacter-phytoplankton symbioses.
Phytoplankton blooms: a ‘loophole’ in microzooplankton grazing impact?
Blooming conditions are interpreted as physical or chemical perturbations disrupting the predator-prey controls that normally operate at the level of the microbial loop, opening 'loopholes' into which some phytoplankton species populations can explode.
Two‐way interactions between ocean biota and climate mediated by biogeochemical cycles
Some of the two-way interactions between ocean biota and climate are mediated by biogeochemical cycles that link the different components of the climate system. As suggested by proxy records
Dimethylsulfoniopropionate (DMSP) and dimethyl sulfide (DMS) cycling across contrasting biological hotspots of the New Zealand subtropical front
Estimates of the potential contribution of microbially mediated rates of D MS production to the near-surface concentrations of DMS suggest that bacteria alone could not have sustained DMS pools at most stations, indicating an important role for phytoplankton-mediated DMS production.
Export fluxes of dimethylsulfoniopropionate and its break down gases at the air‐sea interface
Dimethylsulfide (DMS) results from the decomposition of dimethylsulfoniopropionate (DMSP), a biogenic product, in seawater. Diffusive transfer of DMS from sea‐to‐air is known to be the most important
Dimethylsulfoniopropionate ( DMSP ) and dimethylsulfide ( DMS ) cycling 1 across contrasting biological hotspots of the New Zealand Subtropical 2 Front 3 4 5 6
The oceanic frontal region above the Chatham Rise east of New Zealand was investigated during the late austral summer season in February and March 2012. Despite its potential importance as a source
Short‐term variability in the open ocean cycle of dimethylsulfide
The marine biogeochemical cycle of dimethylsulfide (DMS), the main natural source of sulfur to the global atmosphere, was studied during a 2‐week Lagrangian experiment in the subpolar North Atlantic,
Methanethiol, dimethyl sulfide and acetone over biologically productive waters in the southwest Pacific Ocean
Abstract. Atmospheric methanethiol (MeSH a ), dimethyl sulfide (DMS a ) and acetone (acetone a ) were measured over biologically productive frontal waters in the remote southwest Pacific Ocean in
Methanethiol, dimethyl sulfide and acetone over biologically productive waters in the SW Pacific Ocean
Abstract. Atmospheric methanethiol (MeSHa), dimethyl sulfide (DMSa) and acetone (acetonea) were measured over biologically productive frontal waters in the remote South West Pacific Ocean in


Oceanic phytoplankton, atmospheric sulphur, cloud albedo and climate
The major source of cloud-condensation nuclei (CCN) over the oceans appears to be dimethylsulphide, which is produced by planktonic algae in sea water and oxidizes in the atmosphere to form a
Marine sulphur emissions
The principal volatile sulphur species found in seawater are dimethyl sulphide (DMS), carbonyl sulphide (COS) and carbon disulphide (CS2. Of these, DMS is the most abundant and widespread in its
A new route for synthesis of dimethylsulphoniopropionate in marine algae
In vivo isotope labelling is used to demonstrate that DMSP synthesis in the green macroalga Enteromorpha intestinalis proceeds by a route entirely distinct from that in higher plants, and the fact that a transamination initiates this pathway could help explain how algal DMSP production is enhanced by nitrogen deficiency.
Grazing-activated chemical defence in a unicellular marine alga
It is shown that this reaction deters protozoan herbivores, presumably through the production of highly concentrated acrylate, which has antimicrobial activity, which is believed to be the first report of grazing-activated chemical defence in unicellular microorganisms.
The Ocean as a Source of Atmospheric Sulfur Compounds
The impact of human activity on the global atmospheric sulfur cycle is easily seen in densely inhabited, industrialized regions: the degradation of visibility by haze, the acidity of atmospheric
The Haptophyte algae
Prymnesiophytes as components of marine phytoplankton, and Emiliania huxleyi as a key to biosphere-geosphere interaction, and the Origin and relationships of the Haptophyta.
Biological and Environmental Chemistry of DMSP and Related Sulfonium Compounds
Proceedings of the June 1995 symposium, covering topics related to dimethylsulfoniopropionate (DMSP) and providing background and the latest research on the subject. DMSP and related sulfonium
Atmospheric sulphur and climate—what have we learned?
Atmospheric chemistry of sulphur in relation to aerosols, clouds, and climate–held on 3–4 July 1996 at The Royal Society, London.
Climate change 1995: the science of climate change.
This extensive report entitled “Climate Change 1995: The Science of Climate Change” is the most comprehensive and up-to-date assessment available for scientific understanding of human influences on