Dr Henrik Sass

2025

• Soares, A. et al., 2025. Hydrogeological and geological partitioning of iron and sulfur cycling bacterial consortia in subsurface coal-based mine waters. FEMS Microbiology Ecology 101 (5) fiaf039. (10.1093/femsec/fiaf039)

2023

• Spencer, C. , Sass, H. and van Paassen, L. 2023. Increased microbially induced calcium carbonate precipitation (MICP) efficiency in multiple treatment sand biocementation processes by augmentation of cementation medium with ammonium chloride. Geotechnics 3 (4) 3040057. (10.3390/geotechnics3040057)
• Webster, G. et al. 2023. Methanogen activity and microbial diversity in Gulf of Cádiz mud volcano sediments. Frontiers in Microbiology 14 1157337. (10.3389/fmicb.2023.1157337)

2021

• Freitas, F. S. et al., 2021. New insights into large-scale trends of apparent organic matter reactivity in marine sediments and patterns of benthic carbon transformation. Biogeosciences 18 , pp.4651-4679. (10.5194/bg-18-4651-2021)

2020

• Poniecka, E. A. et al. 2020. Physiological capabilities of cryoconite hole microorganisms. Frontiers in Microbiology 11 1783. (10.3389/fmicb.2020.01783)
• Spencer, C. , Sass, H. and van Paassen, L. 2020. Effect of jute fibres on the process of MICP and properties of biocemented sand. Materials 13 (23) 5429. (10.3390/ma13235429)

2019

• Parkes, R. J. et al. 2019. Rock-crushing derived hydrogen directly supports a methanogenic community: significance for the deep biosphere.. Environmental Microbiology Reports 11 (2), pp.165-172. (10.1111/1758-2229.12723)
• Sass, H. , Parkes, R. J. and Webster, G. 2019. Marine deep biosphere. In: Reference Module in Life Sciences. Elsevier. , pp.18-27. (10.1016/B978-0-12-809633-8.13031-6)
• Spencer, C. and Sass, H. 2019. Development of self-healing biocement. Presented at: 8th Congress of European Microbiologists (FEMS2019) Glasgow 07 - 11 Jul 2019. , pp.-.
• Spencer, C. and Sass, H. 2019. Use of carrier materials to immobilise and supply cementation medium for microbially mediated self-healing in biocement. Presented at: 4th International Conference “Innovative Materials, Structures and Technologies” (IMST 2019) Riga, Latvia 25 - 27 September 2019. IOP Conference Series: Materials Science and Engineering. Vol. 660.Vol. 012067. IOP Publishing(10.1088/1757-899X/660/1/012067)
• Webster, G. et al. 2019. Genome sequences of two choline-utilising methanogenic archaea, Methanococcoides spp., isolated from marine sediments. Microbiology Resource Announcements 8 (18) e00342-19. (10.1128/MRA.00342-19)

2018

• Poniecka, E. et al., 2018. Rapid development of anoxic niches in supraglacial ecosystems. Arctic, Antarctic, and Alpine Research 50 (1) S100015. (10.1080/15230430.2017.1420859)

2016

• Nobu, M. K. et al., 2016. Phylogeny and physiology of candidate phylum 'Atribacteria' (OP9/JS1) inferred from cultivation-independent genomics. ISME Journal 10 (2), pp.273-286. (10.1038/ismej.2015.97)
• Sass, H. and Parkes, R. J. 2016. Deep sub-surface. In: Reference Module in Life Sciences. Elsevier(10.1016/B978-012373944-5.00275-3)

2015

• O'Sullivan, L. A. et al. 2015. Survival of Desulfotomaculum spores from estuarine sediments after serial autoclaving and high-temperature exposure. ISME Journal 9 , pp.922-933. (10.1038/ismej.2014.190)
• Roussel, E. G. P. et al. 2015. Complex coupled metabolic and prokaryotic community responses to increasing temperatures in anaerobic marine sediments: critical temperatures and substrate changes. FEMS Microbiology Ecology 91 (8) fiv084. (10.1093/femsec/fiv084)

2014

• Parkes, R. J. et al. 2014. A review of prokaryotic populations and processes in sub-seafloor sediments, including biosphere: geosphere interactions. Marine Geology 352 , pp.409-425. (10.1016/j.margeo.2014.02.009)
• Parkes, R. J. et al. 2014. Studies on prokaryotic populations and processes in subseafloor sediments - an update. In: Kallmeyer, J. and Wagner, D. eds. Microbial Life of the Deep Biosphere. Berlin: de Gruyter. , pp.1-325.
• Watkins, A. J. et al. 2014. Glycine betaine as a direct substrate for methanogens (Methanococcoides spp.). Applied and Environmental Microbiology 80 , pp.289-293. (10.1128/AEM.03076-13)

2013

• Seidel, M. et al., 2013. Phosphate-free ornithine lipid contents in Desulfovibrio spp. respond to growth temperature. Organic Geochemistry 59 , pp.133-142. (10.1016/j.orggeochem.2013.04.004)

2012

• Seidel, M. et al., 2012. Advection and diffusion determine vertical distribution of microbial communities in intertidal sediments as revealed by combined biogeochemical and molecular biological analysis. Organic Geochemistry 52 , pp.114-129. (10.1016/j.orggeochem.2012.08.015)
• Watkins, A. J. et al. 2012. Choline and N,N-Dimethylethanolamine as direct substrates for methanogens. Applied and Environmental Microbiology 78 (23), pp.8298-8303. (10.1128/AEM.01941-12)

2011

• Parkes, R. J. et al. 2011. Prokaryotes stimulate mineral H2 formation for the deep biosphere and subsequent thermogenic activity. Geology 39 (3), pp.219-222. (10.1130/G31598.1)
• Sass, H. and Parkes, R. J. 2011. Deep sub-surface. In: Schmidt, T. M. and Schaechter, M. eds. Topics in Ecological and Environmental Microbiology. Academic Press. , pp.393-407.
• Sass, H. and Parkes, R. J. 2011. Sub-seafloor sediments: an extreme but globally Significant prokaryotic habitat (Taxonomy, Diversity, Ecology). In: Horikoshi, K. ed. Extremophiles Handbook. Vol. 2, Springer Reference New York: Springer. , pp.1015-1042. (10.1007/978-4-431-53898-1_49)
• Webster, G. et al. 2011. Enrichment and cultivation of prokaryotes associated with the sulphate-methane transition zone of diffusion-controlled sediments of Aarhus Bay, Denmark under heterotrophic conditions. FEMS Microbiology Ecology 77 (2), pp.248-263. (10.1111/j.1574-6941.2011.01109.x)

2010

• Parkes, R. J. et al. 2010. Methods for studying methanogens and methanogenesis in marine sediments. In: Timmis, K. H. ed. Handbook of Hydrocarbon and Lipid Microbiology. Vol. 5, Springer Reference Springer. , pp.3799-3827. (10.1007/978-3-540-77587-4_299)
• Sass, H. et al. 2010. Tateyamaria pelophila sp. nov., a facultatively anaerobic alphaproteobacterium isolated from tidal-flat sediment, and emended descriptions of the genus Tateyamaria and of Tateyamaria omphalii. International Journal of Systematic and Evolutionary Microbiology 60 (8), pp.1770-1777. (10.1099/ijs.0.013524-0)

2009

• Freese, E. et al., 2009. Gammaproteobacteria as a possible source of Eicosapentaenoic Acid in anoxic intertidal sediments. Microbial Ecology 57 (3), pp.444-454. (10.1007/s00248-008-9443-2)
• Fry, J. C. et al. 2009. Prokaryotic populations and activities in an interbedded coal deposit, including a previously deeply buried section (1.6–2.3 km) above ∼ 150 Ma basement rock. Geomicrobiology Journal 26 (3), pp.163-178. (10.1080/01490450902724832)
• Parkes, R. J. and Sass, H. 2009. Deep Sub-Surface. In: Schaechter, M. ed. Encyclopedia of Microbiology. 3rd ed.. Academic Press. , pp.64-79. (10.1016/B978-012373944-5.00275-3)
• Parkes, R. J. et al. 2009. Culturable prokaryotic diversity of deep, gas hydrate sediments: First use of a continuous high-pressure, anaerobic, enrichment and isolation system for subseafloor sediments (DeepIsoBUG). Environmental Microbiology 11 (12), pp.3140-3153. (10.1111/j.1462-2920.2009.02018.x)
• Sass, H. et al. 2009. Desulfovibrio idahonensis sp. nov., sulfate-reducing bacteria isolated from a metal(loid)-contaminated freshwater sediment. International Journal of Systematic and Evolutionary Microbiology 59 (9), pp.2208-2214. (10.1099/ijs.0.016709-0)
• Webster, G. et al. 2009. Subsurface microbiology and biogeochemistry of a deep, cold-water carbonate mound from the Porcupine Seabight (IODP Expedition 307). Environmental Microbiology 11 (1), pp.239-257. (10.1111/j.1462-2920.2008.01759.x)

2008

• Fichtel, J. et al., 2008. High variations in endospore numbers within tidal flat sediments revealed by quantification of dipicolinic acid. Geomicrobiology Journal 25 (7-8), pp.371-380. (10.1080/01490450802402877)
• Fichtel, J. , Sass, H. and Rullkötter, J. 2008. Assessment of spore contamination in pepper by determination of dipicolinic acid with a highly sensitive HPLC approach. Food Control 19 (10), pp.1006-1010. (10.1016/j.foodcont.2007.09.006)
• Freese, E. et al., 2008. Variable temperature-related changes in fatty acid composition of bacterial isolates from German Wadden sea sediments representing different bacterial phyla. Organic Geochemistry 39 (10), pp.1427-1438. (10.1016/j.orggeochem.2008.06.005)
• Gittel, A. et al., 2008. Identity and abundance of active sulfate-reducing bacteria in deep tidal flat sediments determined by directed cultivation and CARD-FISH analysis. Environmental Microbiology 10 (10), pp.2645-2658. (10.1111/j.1462-2920.2008.01686.x)
• Sass, A. et al. 2008. Diversity of Bacillus-like organisms isolated from deep-sea hypersaline anoxic sediments. Saline Systems 4 (8), pp.1-11. (10.1186/1746-1448-4-8)
• Süß, J. et al., 2008. Two distinct Photobacterium populations thrive in ancient Mediterranean sapropels. Microbial Ecology 55 (3), pp.371-383. (10.1007/s00248-007-9282-6)

2007

• Batzke, A. et al., 2007. Phylogenetic and Physiological Diversity of Cultured Deep-Biosphere Bacteria from Equatorial Pacific Ocean and Peru Margin Sediments. Geomicrobiology Journal 24 (3-4), pp.261-273. (10.1080/01490450701456453)
• Fichtel, J. et al., 2007. Spore dipicolinic acid contents used for estimating the number of endospores in sediments. FEMS Microbiology Ecology 61 (3), pp.522-532. (10.1111/j.1574-6941.2007.00354.x)
• Fichtel, J. et al., 2007. A highly sensitive HPLC method for determination of nanomolar concentrations of dipicolinic acid, a characteristic constituent of bacterial endospores. Journal of Microbiological Methods 70 (2), pp.319-327. (10.1016/j.mimet.2007.05.008)
• Parkes, R. J. and Sass, H. 2007. The sub-seafloor biosphere and sulphate-reducing prokaryotes: their presence and significance. In: Barton, L. L. and Hamilton, W. A. eds. Sulphate-Reducing Bacteria: Environmental and Engineered Systems. Cambridge: Cambridge University Press. , pp.329-358. (10.1017/CBO9780511541490.012)
• Sass, H. and Cypionka, H. 2007. Response of sulphate-reducing bacteria to oxygen. In: Barton, L. L. and Hamilton, W. A. eds. Sulphate-Reducing Bacteria: Environmental and Engineered Systems. Cambridge: Cambridge University Press. , pp.167-183. (10.1017/CBO9780511541490.006)
• Webster, G. et al. 2007. Distribution of candidate division JS1 and other Bacteria in tidal sediments of the German Wadden Sea using targeted 16S rRNA gene PCR-DGGE. FEMS Microbiology Ecology 62 (1), pp.78-89. (10.1111/j.1574-6941.2007.00372.x)
• Wilms, R. et al., 2007. Methane and sulfate profiles within the subsurface of a tidal flat are reflected by the distribution of sulfate-reducing bacteria and methanogenic archaea. FEMS Microbiology Ecology 59 (3), pp.611-621. (10.1111/j.1574-6941.2006.00225.x)

2006

• Martens-Habbena, W. and Sass, H. 2006. Sensitive determination of microbial growth by nucleic acid staining in aqueous suspension. Applied and environmental microbiology 72 (1), pp.87-95. (10.1128/AEM.72.1.87-95.2006)
• Ramamoorthy, S. et al., 2006. Desulfosporosinus lacus sp. nov., a sulfate-reducing bacterium isolated from pristine freshwater lake sediments. International Journal of Systematic and Evolutionary Microbiology 56 (12), pp.2729-2736. (10.1099/ijs.0.63610-0)
• Süß, J. et al., 2006. Widespread distribution and high abundance of Rhizobium radiobacter within Mediterranean subsurface sediments. Environmental Microbiology 8 (10), pp.1753-1763. (10.1111/j.1462-2920.2006.01058.x)
• Wilms, R. et al., 2006. Deep biosphere-related bacteria within the subsurface of tidal flat sediments. Environmental Microbiology 8 (4), pp.709-719. (10.1111/j.1462-2920.2005.00949.x)
• Wilms, R. et al., 2006. Specific Bacterial, Archaeal, and Eukaryotic Communities in Tidal-Flat Sediments along a Vertical Profile of Several Meters. Applied and Environmental Microbiology 72 (4), pp.2756-2764. (10.1128/AEM.72.4.2756-2764.2006)

2005

• Köpke, B. et al., 2005. Microbial diversity in coastal subsurface sediments - a cultivation approach using various electron acceptors and substrate gradients. Applied and environmental microbiology 71 (12), pp.7819-7830. (10.1128/AEM.71.12.7819-7830.2005)
• Warthmann, R. et al., 2005. Desulfovibrio brasiliensis sp. nov., a moderate halophilic sulfate-reducing bacterium from Lagoa Vermelha (Brazil) mediating dolomite formation. Extremophiles 9 (3), pp.255-261. (10.1007/s00792-005-0441-8)

2004

• D'Hondt, S. et al., 2004. Distributions of Microbial Activities in Deep Subseafloor Sediments. Science 306 (5705), pp.2216-2221. (10.1126/science.1101155)
• Sass, H. and Cypionka, H. 2004. Isolation of Sulfate-Reducing Bacteria from the Terrestrial Deep Subsurface and Description of Desulfovibrio cavernae sp. nov. Systematic and Applied Microbiology 27 (5), pp.541-548. (10.1078/0723202041748181)
• Sass, H. et al. 2004. Desulfosporomusa polytropa gen. nov., sp. nov., a novel sulfate-reducing bacterium from sediments of an oligotrophic lake. Archives of Microbiology 182 (2-3), pp.204-211. (10.1007/s00203-004-0703-3)
• Süß, J. et al., 2004. Quantitative analysis of bacterial communities from Mediterranean sapropels based on cultivation-dependent methods. FEMS Microbiology Ecology 51 (1), pp.109-121. (10.1016/j.femsec.2004.07.010)

2003

• Sass, H. , Babenzien, C. and Babenzien, H. 2003. Sulfate reduction in the oligotrophic Lake Stechlin. Advances in Limnology 58 , pp.37-52.
• Sass, H. , Engelen, B. and Cypionka, H. 2003. Die tiefe Biosphäre – Mikrobiologie der Erdkruste. Biospektrum (5), pp.589-591.

2002

• Coolen, M. J. L. et al., 2002. Ongoing modification of Mediterranean Pleistocene Sapropels Mediated by Prokaryotes. Science 296 (5577), pp.2407-2410. (10.1126/science.1071893)
• Rütters, H. et al., 2002. Microbial communities in a Wadden Sea sediment core—clues from analyses of intact glyceride lipids, and released fatty acids. Organic Geochemistry 33 (7), pp.803-816. (10.1016/S0146-6380(02)00028-1)
• Rütters, H. et al., 2002. Phospholipid analysis as a tool to study complex microbial communities in marine sediments. Journal of Microbiological Methods 48 (2-3), pp.149-160. (10.1016/S0167-7012(01)00319-0)
• Sass, A. et al. 2002. Growth and chemosensory behavior of sulfate-reducing bacteria in oxygen-sulfide gradients. FEMS Microbiology Ecology 40 (1), pp.47-54. (10.1111/j.1574-6941.2002.tb00935.x)
• Sass, A. et al. 2002. Desulfobulbus mediterraneus sp. nov., a sulfate-reducing bacterium growing on mono- and disaccharides. Archives of Microbiology 177 (6), pp.468-474. (10.1007/s00203-002-0415-5)

2001

• Rütters, H. et al., 2001. Monoalkylether phospholipids in the sulfate-reducing bacteria Desulfosarcina variabilis and Desulforhabdus amnigenus. Archives of Microbiology 176 (6), pp.435-442. (10.1007/s002030100343)
• Sass, A. et al. 2001. Microbial Communities in the Chemocline of a Hypersaline Deep-Sea Basin (Urania Basin, Mediterranean Sea). Applied and Environmental Microbiology 67 (12), pp.5392-5402. (10.1128/AEM.67.12.5392-5402.2001)

1999

• Babenzien, H. and Sass, H. 1999. Desulfurikation. In: von Tümpling, W. and Friedrich, G. eds. Methoden der biologischen Gewässeruntersuchung. Jena: Gustav Fischer Verlag. , pp.435-444.
• Fröhlich, J. et al., 1999. Isolation of Desulfovibrio intestinalis sp. nov. from the hindgut of the lower termite Mastotermes darwiniensis. Canadian Journal of Microbiology 45 (2), pp.145-152. (10.1139/w98-222)

1998

• Overmann, J. et al., 1998. The ecological niche of the consortium " Pelochromatium roseum ". Archives of Microbiology 169 (2), pp.120-128. (10.1007/s002030050551)
• Sass, H. et al. 1998. Psychrotolerant sulfate-reducing bacteria from an oxic freshwater sediment, description of Desulfovibrio cuneatus sp. nov. and Desulfovibrio litoralis sp. nov. Systematic and Applied Microbiology 21 (2), pp.212-219.
• Sass, H. et al. 1998. High genetic and physiological diversity of sulfate-reducing bacteria isolated from an oligotrophic lake sediment. Archives of Microbiology 170 (4), pp.243-251. (10.1007/s002030050639)

1997

• Sass, H. , Cypionka, H. and Babenzien, H. 1997. Vertical distribution of sulfate-reducing bacteria at the oxic-anoxic interface in sediments of the oligotrophic Lake Stechlin. FEMS Microbiology Ecology 22 (3), pp.245-255. (10.1111/j.1574-6941.1997.tb00377.x)

1996

• Babenzien, H. and Sass, H. 1996. The sediment-water interface - habitat of the unusual bacterium Achromatium oxaliferum. Advances in Limnology 48 , pp.247-251.
• Sass, H. , Cypionka, H. and Babenzien, H. 1996. Sulfate-reducing bacteria from the oxic sediment layers of the oligotrophic Lake Stechlin. Advances in Limnology 48 , pp.241-246.

1992

• Sass, H. et al. 1992. Formation of thionates by freshwater and marine strains of sulfate-reducing bacteria. Archives of Microbiology 158 (6), pp.418-421. (10.1007/BF00276302)