Publications 1999

Direktor: Prof. Dr. Bo Barker Jørgensen

Böttcher, M. E.: The stable isotopic geochemistry of the sulfur and carbon cycles in a modern karst environment. Isotopes in Environmental and Health Studies 35, 39–61 (1999).

Böttcher, M. E.; Bernasconi, S.; Brumsack, H.-J.: Carbon, sulfur and oxygen isotope geochemistry in interstitial waters from the western Mediterranean. Proceedings of the Ocean Drilling Program, Scientific Research 161, 413–422 (1999).

Böttcher, M. E.; Oelschläger, B.; Höpner, T.; Brumsack, H.-J.; Rullkötter, J.: Isotope discrimination (³⁴S/³²S, ¹³C/¹²C) related to the formation of large anoxic sediment surfaces in the backbarrier tidal area of Baltrum Island (southern North Sea) (in German). Zentralblatt für Geologie und Palaeontologie Teil I 1997, 1063–1075 (1999).

Böttcher, M. E.; Sievert, S. M.; Kuever, J.: Fractionation of sulfur isotopes during dissimilatory reduction of sulfate by a thermophilic gram-negative bacterium at 60°C. Archives of Microbiology 172, 125–128 (1999).

Brüchert, V.; Knoblauch, C.; Jørgensen, B. B.: Sulfur itotope fractionation during bacterial sulfate reduction. In: Geochemistry of the Earth's Surface. (Ed.) H. Armannsson. Balkema, Rotterdam 1999, 303–305.

Brüchert, V.; Pratt, L. M.: Stable sulfur isotopic evidence for historical changes of sulfur cycling in estuarine sediments from Northern Florida. Aquatic Geochemistry 5, 249–268 (1999).

Ferdelman, T. G.; Fossing, H.; Neumann, K.; Schulz, H. D.: Sulfate reduction in surface sediments of the southeast Atlantic continental margin between 15° 38¢S and 27° 57¢S (Angola and Namibia). Limnology and Oceanography 44, 650–661 (1999).

Jørgensen, B. B.; Gallardo, V. A.: Thioploca spp.: filamentous sulfur bacteria with nitrate vacuoles. FEMS Microbiology Ecology 28, 301–313 (1999).

Knoblauch, C.; Jørgensen, B. B.: Effect of temperature on sulfate reduction, growth rate, and growth yield in five psychrophilic sulfate-reducing bacteria from Arctic sediments. Environmental Microbiology 1, 457–467 (1999).

Knoblauch, C.; Jørgensen, B. B.; Harder, J.: Community size and metabolic rates of psychrophilic sulfate-reducing bacteria in Arctic marine sediments. Applied and Environmental Microbiology 65, 4230–4233 (1999).

Knoblauch, C.; Sahm, K.; Jørgensen, B. B.: Psychrophilic sulphate reducing bacteria isolated from permanently cold arctic marine sediments: description of Desulfofrigus oceanense gen. nov., sp. nov., Desulfofrigus fragile sp. nov., Desulfofaba gelida gen. nov., sp. nov., Desulfotalea psychrophila gen. nov., sp. nov., and Desulfotalea arctica sp. nov. Journal of Systematic Bacteriology 49, 1631–1643 (1999).

Kostka, J. E.; Thamdrup, B.; Glud, R. N.; Canfield, D. E.: Rates and parthways of carbon oxidation in permanently cold Arctic sediments. Marine Ecology Progress Series 180, 7–21 (1999).

Melezhik, V. A.; Fallick, A. E.; Filippov, M. M.; Larsen, O.: Karelian shungite – an indication of 2.0-Ga-old metamorphosed oil-shale and generation of petroleum: geology, lithology and geochemistry. Earth-Science Reviews 47, 1–40 (1999).

Mikkelsen, A.; Andersen, A. B.; Engelsen, S. B.; Hansen, H. C. B.; Larsen, O.; Skibsted, L. H.: Presence and dehydration of ikaite, calcium carbonate hexahydrate, in frozen shrimp shell. Journal of Agricultural and Food Chemistry 47, 911–917 (1999).

Neretin, L.; Böttcher, M. E.; Jørgensen, B. B.; Volkov, I. I.; Lüschen, H.: Pyritization at the Holocene/late Pleistocene transition in the Black Sea sediments: Sulfur species and their isotopic composition. In: Geochemistry of the Earth's Surface. (Ed.) H. Armannsson. Balkema, Rotterdam 1999, 331–334.

Otte, S.; Kuenen, J. G.; Nielsen, L. P.; Paerl, H. W.; Schulz, H. N.; Teske, A.; Zopfi, J.; Gallardo, V. A.; Kjaer, T.; Strotmann, B.; Jørgensen, B. B.: Nitrogen, carbon, and sulfur metabolism in natural Thioploca samples. Applied and Environmental Microbiology 65, 3148–3157 (1999).

Passier, H. F.; Böttcher, M. E.; De Lange, G. J.: Sulphur enrichment in organic matter of eastern Mediterranean sapropels: A study of sulfur isotope partitioning. Aquatic Geochemistry 5, 99–118 (1999).

Passier, H. F.; Bosch, H.-J.; Nijenhuis, I. A.; Lourens, L. J.; Böttcher, M. E.; Leenders, A.; Damsté, J. S. S.; De Lange, G. J.; De Leeuw, J. W.: Sulfidic Mediterranean surface waters during Pliocene sapropel formation. Nature 397, 146–149 (1999).

Passier, H. F.; Middelburg, J.; De Lange, G. J.; Böttcher, M. E.: Modes of sapropel formation in the eastern Mediterranean: some constraints based on pyrite properties. Marine Geology 153, 199–219 (1999).

Schulz, H.; Brinkhoff, T.; Ferdelman, T. G.; Hernandez Marine, M.; Teske, A.; Jørgensen, B. B.: Dense populations of a giant sulfur bacterium in Namibian shelf sediments. Science 284, 493–495 (1999).

Dissertationen

Knoblauch, C.: Isolation and characterization of psychrophilic sulfate-reducing bacteria from permanently cold Arctic sediments. Bremen 1999.

Schulz, H.: Nitrate-storing sulfur bacteria in sediments of coastal upwelling. Bremen 1999.

Weber, A.: Schwefelkreislauf in marinen Sedimenten und Messung von in situ Sulfatreduktionsraten. Bremen 1999.

Diplom-, Magister-, Staatsexamensarbeiten

Finke, N.: Die relative Bedeutung kurzkettiger Carbonsäuren für sulfatreduzeirende Bakterien in polaren Schelfsedimenten und der Einfluß von erhöhter Temperatur. Bremen 1999.

Finke, N.: Kurzkettige Karbonsäuren in der Frühdiagenese polarer Schelfsedimente. Bremen 1999.

Hespenheide, B.: Biogeochemische und isotopenchemische Reaktionen im Eisen-Mangan-Schwefel-Kohlenstoff-Kreislauf zweier unterschiedlicher Wattsedimente. Bremen 1999.

Piel, C.: Experimentelle Untersuchungen zur Schwefelisotopenfraktionierung (³⁴S/³²S) bei Transport und Reaktion von gelösten und gasförmigen Schwefelspezies. Bremen 1999.

Direktor: Prof. Dr. Friedrich Widdel

Champion, K. M.; Zengler, K.; Rabus, R.: Anaerobic degradation of ethylbenzene and toluene in denitrifying strain EbN1 proceeds via independent substrate-induced pathways. Journal of Molecular Microbiology and Biotechnology 1, 157–164 (1999).

Fukui, M.; Teske, A.; Aßmus, B.; Muyzer, G.; Widdel, F.: Physiology, phylogenetic relationships, and ecology of filamentous sulfate-reducing bacteria (genus Desulfonema). Archives of Microbiology 172, 193–203 (1999).

Galushko, A.; Minz, D.; Schink, B.; Widdel, F.: Anaerobic degradation of naphthalene by a pure culture of a novel type of marine sulphate-reducing bacterium. Environmental Microbiology 1, 415–420 (1999).

Harder, J.; Foß, S.: Anaerobic formation of the aromatic hydrocarbon p-cymene from monoterpenes by methanogenic enrichment cultures. Geomicrobiology Journal 16, 295–306 (1999).

Harms, G.; Rabus, R.; Widdel, F.: Anaerobic oxidation of the aromatic plant hydrocarbon p-cymene by newly isolated denitrifying bacteria. Archives of Microbiology 172, 303–312 (1999).

Harms, G.; Zengler, K.; Rabus, R.; Aeckersberg, F.; Minz, D.; Rossello-Mora, R.; Widdel, F.: Anaerobic oxidation of o-Xylene, m-Xylene, and homologous alkylbenzenes by new types of sulfate-reducing bacteria. Applied and Environmental Microbiology 65, 999–1004 (1999).

Heider, H.; Spormann, A.; Beller, H. R.; Widdel, F.: Anaerobic bacterial metabolism of hydrocarbons. FEMS Microbiology Reviews 22, 459–473 (1999).

Hylemon, P. B.; Harder, J.: Biotransformation of monoterpenes, bile acids, and other isoprenoids in anaerobic ecosystems. FEMS Microbiology Reviews 22, 475–488 (1999).

Kniemeyer, O.; Probian, C.; Rossello-Mora, R.; Harder, J.: Anaerobic mineralization of quaternary carbon atoms: Isolation of denitrifying bacteria on dimethylmalonate. Applied and Environmental Microbiology 65, 3319–3324 (1999).

Kuever, J.; Rainey, F. A.; Hippe, H.: Description of Desulfotomaculum sp. Groll as Desulfotomaculum gibsoniae, sp. nov. International Journal of Systematic Bacteriology 49, 1801–1808 (1999).

Rabus, R.; Wilkes, H.; Schramm, A.; Harms, G.; Behrends, A.; Amann, R.; Widdel, F.: Anaerobic utilization of alkylbenzenes and n-alkanes from crude oil in an enrichment culture of denitrifying bacteria affiliating with the b-subclass of Proteobacteria. Environmental Microbiology 1, 145–158 (1999).

Schüler, D.: Formation of magnetosomes in magnetotactic bacteria. Journal of Molecular Microbiology and Biotechnology 1, 79–86 (1999).

Sievert, S. M.; Brinkhoff, T.; Muyzer, G.; Ziebis, W.; Kuever, J.: Spatial heterogeneity of bacterial populations along an environmental gradient at a shallow submarine hydrothermal vent near Milos Island (Greece). Applied and Environmental Microbiology 65, 3834–3842 (1999).

Straub, K.; Rainey, F. A.; Widdel, F.: Rhodovulum iodosum sp. nov. and Rhodovulum robiginosum sp. nov., two new marine phototrophic ferrous-iron-oxidizing purple bacteria. International Journal of Systematic Bacteriology 49, 729–735 (1999).

Zengler, K.; Heider, J.; Rossello-Mora, R.; Widdel, F.: Phototrophic utilization of toluene under anoxic conditions by a new strain of Blastochloris sulfoviridis. Archives of Microbiology 172, 204–212 (1999).

Zengler, K.; Richnow, H. H.; Roselló-Mora, R.; Michaelis, W.; Widdel, F.: Methane formation from long-chain alkanes by anaerobic microorganisms. Nature 401, 266–269 (1999).

Dissertationen

Behrends, A.: Physiologie und substratspezifische Proteinbildung denitrifizierender Bakterien mit der Fähigkeit zur anaeroben Oxidation kurzkettiger Alkane. Bremen 1999.

Heyen, U.: Der anaerobe Abbau von Monoterpenen durch das ß-Proteobakterium Alcaligenes defragrans. Bremen 1999.

Sievert, S. M.: Microbial communities at a shallow submarine hydrothermal vent in the Aegean Sea (Milos, Greece). Bremen 1999.

Zengler, K.: Mikrobielle Diversität und neuartige Fähigkeiten beim anaeroben Abbau von Kohlenwasserstoffen. Bremen 1999.

Diplom-, Magister-, Staatsexamensarbeiten

Beutler, T.: Isolierung, Identifizierung und Charakterisierung von thiosulfatoxidierenden Bakterien aus dem Süßwasserstandort Ducksteinquelle. Oldenburg 1999.

Deutschel, S.: Physiologie und Ökologie mariner wasserstoff-oxidierender Schwefelbakterien. Bremen 1999.

Prilipp, A.: Charakterisierung von Ektosymbionten mariner Nematoden der Gattung Leptonemella und feilebender schwefel-oxidierender Bakterien anhand mikrobiologischer und molekularbiologischer Methoden. Bremen 1999.

Stevens, H.: Verteilung, Isolierung und Identifizierung schwefelreduzierender Bakterien und Charakterisierung des Stammes DVXER aus Sedimenten einer Flachwasser-Hydrothermalquelle. Oldenburg 1999.

Leiter Priv.-Doz. Dr. Rudolf I. Amann

Amann, R.: FISHen im Unsichtbaren. Chemie heute 1999/2000, 118–123 (1999).

Brinkhoff, T.; Muyzer, G.; Wirsen, C. O.; Kuever, J.: Thiomicrospira kuenenii sp. nov. and Thiomicorspira frisia sp. nov., two mesophilic obligately chemolithoautotrophic sulfur-oxidizing bacteria isolated from an intertidal mud flat. International Journal of Systematic Bacteriology 49, 385–392 (1999).

Brinkhoff, T.; Muyzer, G.; Wirsen, C. O.; Kuever, J.: Thiomicorspira chilensis sp. nov., a mesophilic obligately chemolithoautotrophic sulfur-oxidizing bacterium isolated from a Thioploca mat. International Journal of Systematic Bacteriology 49, 875–879 (1999).

Daims, H.; Brühl, A.; Amann, R.; Schleifer, K.-H.; Wagner, M.: The domain-specific probe EUB338 is insufficient for the detection of all Bacteria: Development and evaluation of a more comprehensive probe set. Systematic and Applied Microbiology 22, 434–444 (1999).

Dubilier, N.; Amann, R.; Erseus, C.; Muyzer, G.; Park, S. Y.; Giere, O.; Cavanaugh, C. M.: Phylogenetic diversity of bacterial endosymbionts in the gutless marine oligochete Olavius loisae (Annelida). Marine Ecology Progress Series 178, 271–280 (1999).

Glöckner, F. O.; Babenzien, H.-D.; Wulf, J.; Amann, R.: Phylogeny and diversity of Achromatium oxaliferum. Systematic and Applied Microbiology 22, 28–38 (1999).

Glöckner, F. O.; Fuchs, B. M.; Amann, R.: Bacterioplankton compositions of lakes and oceans: a first comparison based on fluorescence in situ hybridization. Applied and Environmental Microbiology 65, 3721–3726 (1999).

Jürgens, K.; Pernthaler, J.; Schalla, S.; Amann, R.: Morphological and compositional changes in a planktonic bacterial community in response to enhanced protozoan grazing. Applied and Environmental Microbiology 65, 1241–1250 (1999).

Juretschko, S.; Schönhuber, W.; Kulakauskas, S.; Ehrlich, D. S.; Schleifer, K.-H.; Amann, R.: In situ detection of Escherichia coli cells containing ColE1-related plasmids by hybridization to regulatory RNA II. Systematic and Applied Microbiology 22, 1–8 (1999).

Meier, H.; Amann, R.; Ludwig, W.; Schleifer, K.-H.: Specific oligonucleotide probes for the in situ detection of a major group of Gram-positive bacteria with low DNA G+C content. Systematic and Applied Microbiology 22, 186–196 (1999).

Minz, D.; Flax, J. L.; Green, S. J.; Muyzer, G.; Cohen, Y.; Wagner, M.; Rittmann, B. E.; Stahl, D. A.: Diversity of sulfat-reducing bacteria in oxic and anoxic regions of a microbial mat characterized by comparative analysis of dissimilatory sulfite reductase genes. Applied and Environmental Microbiology 65, 4666–4671 (1999).

Nübel, U.; Garcia-Pichel, F.; Kühl, M.; Muyzer, G.: Spatial scale and the diversity of benthic cyanobacteria and diatoms in a salina. Hydrobiologia 401, 199–206 (1999).

Nübel, U.; Garcia-Pichel, F.; Kühl, M.; Muyzer, G.: Quantifying microbial diversity: morphotypes, 16 S rRNA genes and carotenoids of oxygenic phototrophs in microbial mats. Applied and Environmental Microbiology 65, 422–430 (1999).

Ravenschlag, K.; Sahm, K.; Pernthaler, J.; Amann, R.: High bacterial diversity in permanently cold marine sediments. Applied and Environmental Microbiology 65, 3882–3989 (1999).

Rossello-Mora, R.; Thamdrup, B.; Schäfer, H.; Weller, R.; Amann, R.: The reponse of the microbial community of marine sediments to organic carbon input under anaerobic conditions. Systematic and Applied Microbiology 22, 237–248 (1999).

Sahm, K.; Knoblauch, C.; Amann, R.: Phylogenetic affiliation and quantification of psychrophilic sulfate-reducing isolates in marine arctic sediments. Applied and Environmental Microbiology 65, 3976–3981 (1999).

Sahm, K.; MacGregor, B. J.; Jørgensen, B. B.; Stahl, D. A.: Sulfate-reduction and vertical distribution of sulphate-reducing bacteria quantified by rRNA slot-blot hybridization in a coastal marine sediment. Environmental Microbiology 1, 65–74 (1999).

Schönhuber, W.; Zarda, B.; Eix, S.; Rippka, R.; Herdman, M.; Ludwig, W.; Amann, R.: In situ identification of cyanobacteria with horseradish peroxidase-labeled, rRNA-targeted oligonucleotide probes. Applied and Environmental Microbiology 65, 1259–1267 (1999).

Schramm, A.; Amann, R.: Nucleic acid-based techniques for analyzing the diversity, structure, and dynamics of microbial communities in wastewater treatment. In: Biotechnology: a multi volume comprehensive treatise. Vol. 11 a, Environmental Processes I. (Eds.) H.-J. Rehm, G. Reed, A. Pühler, P. I. W. Stadler, J. Winter. Wiley-VCH, Weinheim 1999, 85–108.

Schramm, A.; de Beer, D.; van den Heuvel, J. C.; Ottengraf, S. P. P.; Amann, R.: Microscale distribution of populations and activities of Nitrosospira and Nitrospira spp. along a macroscale gradient in a nitryífying bioreactor: quantification by in situ hybridisation and the use of microsensors. Applied and Environmental Microbiology 65, 3690–3696 (1999).

Schramm, A.; Santegoeds, C. M.; Nielsen, H. K.; Ploug, H.; Wagner, M.; Pribyl, M.; Wanner, J.; Amann, R.; de Beer, D.: On the occurrence of anoxic microniches, denitrification, and sulfate reduction in aerated activated sludge. Applied and Environmental Microbiology 65, 4189–4196 (1999).

Schulze, R.; Spring, S.; Amann, R.; Huber, I.; Ludwig, W.; Schleifer, K.-H.; Kämpfer, P.: Genotypic diversity of Acidovorax strains isolated from activated sludge and description of Acidovorax defluvii sp. nov. Systematic and Applied Microbiology 22, 205–214 (1999).

Sikorski, J.; Rossello-Mora, R.; Lorenz, M. G.: Analysis of genotypic diversity and relationships among Pseudomonas stutzeri strains by PCR-based genomic fingerprinting and multilocus enzyme electrophorensis. Systematic and Applied Microbiology 22, 393–402 (1999).

Simon, M.; Glöckner, F. O.; Amann, R.: Different community structure and temperature optima of heterotrophic picoplankton in various regions of the Southern Ocean. Aquatic Microbial Ecology 18, 275–284 (1999).

Snaidr, J.; Fuchs, B. M.; Wallner, G.; Wagner, M.; Schleifer, K.-H.; Amann, R.: Phylogeny and in situ identification of a morphologically conspicuous bacterium, Candidatus Magnospira bakii, present in very low frequency in activated sludge. Environmental Microbiology 1, 125–136 (1999).

Zubkov, M. V.; Fuchs, B. M.; Stürmeyer, H.; Burkill, P. H.; Amann, R.: Determination of total protein content of bacterial cells using SYPRO staining and flow cytometry. Applied and Environmental Microbiology 65, 3251–3257 (1999).

Dissertation

Nübel, U.: Diversity and salinity-dependent bahaviour of benthic cyanobacterial communities. Bremen 1999.

Diplom-, Magister-, Staatsexamensarbeiten

Mussmann, M.: Molekularbiologische Charakterisierung und Identifizierung von Bakterien des Schwefelkreislaufs im Wattenmeersediment. Göttingen 1999.

Mülders, C.: Molekularbiologische Charakterisierung von Bakterien assoziiert mit marinen Oligochaeten (Annelida). Hamburg 1999.

Flux group, Department of biogeochemistry

Leiter: Dr. Markus Hüttel

Basu, A. J.; Khalili, A.: Computation of flow through a fluid-sediment interface in a benthic chamber. Physics of Fluids 11, 1395–1405 (1999).

Forster, S.; Glud, R. N.; Gundersen, J. K.; Huettel, M.: In situ study of bromide tracer and oxygen flux in coastal sediments. Estuarine, Coastal and Shelf Science 49, 813–827 (1999).

Glud, R. N.; Gundersen, J. K.; Holby, O.: Benthic in situ respiration in the upwelling area off central Chile. Marine Ecology Progress Series 186, 9–18 (1999).

Khalili, A.; Basu, A. J.; Pietrzyk, U.; Jørgensen, B. B.: Advetive transport through permeable sediments: a new numerical and experimental approach. Acta Mechanica 132, 221–227 (1999).

Khalili, A.; Basu, A. J.; Pietrzyk, U.; Raffel, M.: An experimental study of recirculating flow through fluid-sediment interfaces. Journal of Fluid Mechanics 383, 229–247 (1999).

Riess, W.; Giere, O.; Kohls, O.; Sarbu, S. M.: Anoxic thermomineral cave waters and bacterial mats as habitat for freshwater nematodes. Aquatic Microbial Ecology 18, 157–164 (1999).

Witte, U.: Consumption of large carcasses by scavenger assemblages in the deep Arabian Sea: observations by baited camera. Marine Ecology Progress Series 183, 139–147 (1999).

Røy, H.: The diffusive boundary layer of the sea floor; in time and space. Århus, Dänemark 1999.

Leiter: Dr. Dirk De Beer

Epping, E. H. G.; Khalili, A.; Thar, R.: Photosynthesis and the dynamics of oxygen consumption in a microbial mat as calculated from transient oxygen microprofiles. Limnology and Oceanography 44, 1936–1948 (1999).

Garcia-Pichel, F.; Kühl, M.; Nübel, U.; Muyzer, G.: Salinity-dependent limitation of photosynthesis and oxygen exchange in microbial mats. Journal of Phycology 35, 227–238 (1999).

Glud, R. N.; Kühl, M.; Kohls, O.; Ramsing, N. B.: Heterogeneity of oxygen production and consumption in a photosynthetic microbial mat as studied by planar optodes. Journal of Phycology 35, 270–279 (1999).

Ploug, H.; Frossart, H.-P.; Azam, F.; Jørgensen, B. B.: Photosynthesis, respiration, and carbon turnover in sinking marine snow from surface waters of Southern California Bight: implications for the carbon cycle in the ocean. Marine Ecology Progress Series 179, 1–11 (1999).

Ploug, H.; Jørgensen, B. B.: A net-jet flow system for mass transfer and microsensor studies of sinking aggregares. Marine Ecology Progress Series 176, 279–290 (1999).

Ploug, H.; Stolte, W.; Jørgensen, B. B.: Diffusive boundary layers of the colony-forming plankton alga, Phaeocystis sp. – implications for nutrient uptake and cellular growth. Limnology and Oceanography 44, 1959–1967 (1999).

Ploug, H.; Stolte, W.; Epping, E. H. G.; Jørgensen, B. B.: Diffusive boundary layers, photosynthesis, and respiration of the colony-forming plankton alga, Phaeocystis sp. Limnology and Oceanography 44, 1949–1958 (1999).

Portwich, A.; Garcia-Pichel, F.: Ultraviolet and osmotic stresses induce and regulate the synthesis of mycosporines in the cyanobacterium Chlorogloeopsis PCC 6912. Archives of Microbiology 172, 187–192 (1999).

Pringault, O.; De Wit, R.; Kühl, M.: A microsensor study of the interaction between Purple Sulfur and Green Sulfur Bacteria in experimental benthic gradients. Microbial Ecology 34, 173–184 (1999).

Pringault, O.; Eppping, E.; Guyoneaud, R.; Khalili, A.; Kühl, M.: Dynamics of anoxygenic photosynthesis in an experimental Green Sulfur Bacteria biofilm. Environmental Microbiology 1, 295–307 (1999).

Santegoeds, C. M.; Damgaard, L. R.; Hesselink, G.; Zopfi, J.; Lens, P.; Muyzer, G.; de Beer, D.: Distribution of sulfate-reducing and methanogenic bacteria in anaerobic aggregates determined by microsensor and molecular analysis. Applied and Environmental Microbiology 65, 4618–4629 (1999).

Sommaruga, R.; Garcia-Pichel, F.: UV-absorbing mycosporine-like compounds in planktonic and benthic organisms from a high-mountain lake. Archives of Hydrobiology 144, 255–269 (1999).

Verschuren, P. F.; van der Baan, J. L.; Blaauw, R.; de Beer, D.; van den Heuvel, J. C.: A nitrate-selective microelectrode based on a lipophilic derivative of iodocobalt (III) salen. Fresenius Journal of Analytical Chemistry 364, 595–598 (1999).

Dissertationen

Köhler-Rink, S.: The physico-chemical microenvironment of symbiont-bearing foraminifera and their photosynthetic and respiratory characteristics – studied with microsensors. Bremen 1999.

Riess, W.: In situ measurements of respiration and mineralisation processes – interaction between fauna and geochemical fluxes at active interfaces. Bremen 1999.

Santegoeds, C. M.: Structure and function analysis of sulfate reducing communities in wastewater treatment systems. Bremen 1999.

Wenzhöfer, F.: Biogeochemical processes at the sediment water interface and quantification of metabolically driven calcite dissolution in deep sea sediments. Bremen 1999.

Wieland, A.: Microsensor analysis of oxygen and sulfide turnover in hypersaline microbial mats. Bremen 1999.

Diplom-, Magister-, Staatsexamensarbeiten

Beardsley, C.: Verteilung benthischer Mikro- und Meiofauna in einem Schlickwatt der Nordsee. Hannover 1999.

Ludwig, R.: Beeinflussung metabolischer Prozesse bei benthischen Mikroorganismen durch die Salinität. Osnabrück 1999.

Mandalka, A. N.: Synthese und Regulation des UV-Schutzpigmentes Scytonemin an Modellmikroorganismen. Bremen 1999.