Marine macroalgae in polar regions as natural sources for volatile organohalogens

  title={Marine macroalgae in polar regions as natural sources for volatile organohalogens},
  author={Frank Laturnus},
  journal={Environmental Science and Pollution Research},
  • F. Laturnus
  • Published 2001
  • Environmental Science
  • Environmental Science and Pollution Research
Marine macroalgae species from the polar regions were investigated for their importance as natural sources of volatile halogenated compounds released into the biosphere. Several different halogenated C1 to C4 hydrocarbons were identified and their release rates determined. The compounds contained mainly bromine and iodine, and form was the dominant compound released. Although an annual atmospheric input of approximately 108−1010 g bromine and 107−108 g iodine was calculated from the release… 
Production and role of volatile halogenated compounds from marine algae.
The current knowledge of volatile halogenated compounds from algae is discussed, with a focus on biosynthesis, algal physiology and chemical ecology, and geochemical aspects arising from the release of halogenate natural products from micro- and macroalgae.
Natural Production of Organohalide Compounds in the Environment
More than 5000 natural organohalogen compounds have been identified. In terrestrial environments, the bulk of the organochlorine is locked up in humic polymers, collectively accounting for a global
The emission of volatile halocarbons by seaweeds and their response towards environmental changes
Volatile halocarbons can deplete the protective stratospheric ozone layer contributing to global climate change and may even affect local climate through aerosol production. These compounds are
Environmental Control of Vanadium Haloperoxidases and Halocarbon Emissions in Macroalgae
The present paper will focus on reviewing the factors which influence the production of these enzymes in macroalgae, particularly their interactions with reactive oxygen species (ROS).
Structure and Function of Macroalgal Natural Products.
In this chapter this chapter outlines the classes of metabolites produced by this chemically rich group of organisms as well as their respective ecological roles in the environment.
Macroalgal Chemical Defenses in Polar Marine Communities
The knowledge of Antarctic macroalgal chemical ecology, although still relatively sparse when compared with lower latitudes, has expanded greatly since 2001, and the present chapter significantly expands upon that overview.
Temporal trends and identification of the sources of volatile organic compounds in coastal seawater.
Principal component analysis (PCA) demonstrated that physico-chemical and meteorological factors such as wind speed and water temperature can influence the detection of VOCs in surface waters as well their productions.
Terrestrial natural sources of trichloromethane (chloroform, CHCl3) – An overview
The widespread use of volatile chlorinatedcompounds like chloroform, trichloroethene andtetrachloroethene in industrialized societiescauses a large annual release of thesecompounds into the
Screening for bioactive compounds from algae.
Release of reactive organic halogens by the brown macroalga Saccharina latissima after exposure to ultraviolet radiation
The brown macroalga Saccharina latissima (Linnaeus) C.E. Lane, C. Mayes, Druehl & G.W. Saunders (formerly Laminaria saccharina [L.] Lamouroux) was exposed to ultraviolet radiation (UVR) in the mW


Low-molecular-weight organoiodine and organobromine compounds released by polar macroalgae – The influence of abiotic factors
Although marine macroalgae are not considered to be the major source of biogenically-produced volatile organohalogens, they contribute significantly to the bromine and iodine cycles in the environment and under possible environmental changes like global warming and uncontrolled entrophication of the oceans their significance may be increase.
Production of volatile organohalogens by phytoplankton cultures
Natural volatile halocarbons are important as carriers of reactive halogens to the troposphere and, in the case of the more stable compounds, to the stratosphere. Bromoform (CHBr3) has been of
Antarctic macroalgae — Sources of volatile halogenated organic compounds
Volatile halocarbons released from Arctic macroalgae
Release of volatile iodinated C1-C4 hydrocarbons by marine macroalgae from various climate zones
Marine macroalgae are known sources of a wide range of volatile brominated hydrocarbons, but before now far less attention was paid to their contribution to the input of volatile organoiodine
Methyl halides from Antarctic macroalgae
Various species of Antarctic macroalgae have been found to produce and release methyl halides at mean values of 34.7 pmol g−1 waw (wet algal weight) d−1 (methyl chloride), 1.98 pmol g−1 waw d−1
A variety of substances have been reported, with various structures from simple aliphatic halo‐ketones and brominated phenols to more sophisticated mono‐, sesqui‐ and diterpenes.
Production of bromoform and dibromomethane by Giant Kelp: Factors affecting release and comparison to anthropogenic bromine sources
Macrocystis pyrifera (Giant Kelp), a dominant macroalgal species in southern California, produced 171 ng per g fresh wt (gfwt) per day of CHBr3 and 48 ng gfwt−1 d−1 of CH2Br2 during laboratory