The marine sulfur cycle
Coralline algae as a globally significant pool of marine dimethylated sulfur
... for Marine Science, Oban, UK Abstract Marine algae are key sources of the biogenic sulfur compound dimethylsulphoniopropionate (DMSP), a vital component of the marine sulfur ...global ...
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A mechanism for bacterial transformation of dimethylsulfide to dimethylsulfoxide : a missing link in the marine organic sulfur cycle
... that marine heterotrophic bacte- ria of the MRC can rapidly oxidize DMS to DMSO using the enzyme ...the marine environment represents a significant molecular mechanism for the oxidation of this volatile ...
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Pleistocene sediment offloading and the global sulfur cycle
... Received: 4 December 2014 – Published in Biogeosciences Discuss.: 16 January 2015 Revised: 31 March 2015 – Accepted: 24 April 2015 – Published: 27 May 2015 Abstract. Quaternary sea level fluctuations have greatly af- ...
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Microbial Sulfur Cycle in Two Hydrothermal Chimneys on the Southwest Indian Ridge
... 22. Hügler M, Sievert SM. 2011. Beyond the Calvin cycle: autotrophic carbon fixation in the ocean. Ann. Rev. Mar. Sci. 3:261–289. http://dx.doi.org/ 10.1146/annurev-marine-120709-142712. 23. Sikorski J, ...
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Model of a Sulfur-based Cyclic Denitrification Filter for Marine Recirculating Aquaculture Systems
... 49 possess an excellent capacity to hold water, which could result in a high porosity. Effluent was collected from the CDF outlet every 30 seconds and the volume of liquid (ml) collected was divided by 0.5 minute to ...
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Role of chemolithoautotrophic microorganisms involved in nitrogen and sulfur cycling in coastal marine sediments
... Overall, the research presented in this thesis has provided new insights on the diversity, abun- dance and activity of chemolithoautotrophic microorganisms, such as AOA, AOB, anammox and denitrifying bacteria, as well as ...
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Life Cycle Assessment of Fuel Choices for Marine Vessels
... into a liquid fuel. The volume is approximately 600 times less compared to natural gas. LNG has by several scientists been referred to as the most promising alternative fuel for shipping in the short term perspective, ...
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DMS oxidation and sulfur aerosol formation in the marine troposphere: a focus on reactive halogen and multiphase chemistry
... in R all . The global DMS emission flux from R Kettle is 15% lower than that from R all . Overall, at CI, CG and DU, the modeled DMS mixing ratios from R Kettle are similar to those from R all during most of the year. ...
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DMS oxidation and sulfur aerosol formation in the marine troposphere : A focus on reactive halogen and multiphase chemistry
... are similar to those from R all during most of the year. Much lower DMS mixing ratios were calculated from R Kettle at CI in June, at CG in January and at DU in December and January. At AI, however, the modeled DMS ...
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Complete genome sequence of Desulfocapsa sulfexigens, a marine deltaproteobacterium specialized in disproportionating inorganic sulfur compounds
... Keywords: Sulfur-cycle, thiosulfate, sulfite, sulfur disproportionation, marine, sediment for genome sequencing, because it is the first marine bacterium reported to thrive on the ...
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Regional and global scale modeling of the benthic marine nitrogen cycle
... The aim of this study is to investigate N cycling in the Peruvian OMZ sediments along 11 ◦ S and identify the major benthic N turnover processes under the changing redox conditions. We used a reaction-transport model ...
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Impacts and Importance of Ammonia- and Nitrite Oxidation in the Marine Nitrogen Cycle
... various sulfur metabolizing enzyme complexes in the genome of Nitrococcus mightfacilitategrowthevenundersulfidicconditionsthatsporadicallyoccurinOMZs(Lavik et ...
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The Marine Cyanate Cycle
... CHAPTER VI CONCLUSIONS In this work I developed a nanomolar cyanate method appropriate for measuring its concentrations in estuarine and seawater samples. I applied the method to provide the first descriptions of cyanate ...
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Study of Reaction Temperature and Sulfur Dioxide Feed Rate in the Sulfur Iodine Production Cycle Reactions
... Keywords—simulation, Bunsen reaction, plug flow reactor, hydroiodic acid, sulfur iodine I. INTRODUCTION uring the last decade, the demand of the energy has been suddenly increased while the rate of energy ...
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Culture and isolation of phototrophic sulfur bacteria from the marine environment
... Culture of sulfur bacteria 13 The natural samples of the salt marshes usually represented clusters of purple- violet colored immotile phototrophic bacteria, often enc[r] ...
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Overlooked runaway feedback in the marine nitrogen cycle: the vicious cycle
... The marine nitrogen (N) inventory is thought to be stabilized by negative feedback mechanisms that reduce N inventory excursions relative to the more slowly overturning phosphorus ...
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Interactions of marine nitrogen cycle microorganisms
... Boran, I really appreciate all your advice during our informal discussions and your great help in the lab. Wim and Katinka, thanks a lot for your help with the anammox bioreactors. Further, I would like to thank Wouter, ...
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Aspects of the life cycle of marine nematodes
... An interesting hypothesis can be formulated on the basis of observations con- ducted on cultural material when compared with naturally occurring populations within [r] ...
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The Marine Nitrogen Cycle: Overview and Challenges
... the marine nitrogen cycle occupies a central role within the biogeo- chemical cycles of the sea, we have just barely begun to understand its major processes and the factors that regulate ...nitrogen ...
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Co-Existence and niche differentiation of sulfur oxidizing bacteria in marine environments
... microbial sulfur oxidation in marine ecosystems, and to evaluate the impact of particular conditions on the composition and diversity of sulfur-oxidizing microbial ...of sulfur-oxidizing ...
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