2012	K. Trautwein, S. Lahme, L. Wöhlbrand, C. Feenders, K. Mangelsdorf, J. Harder, A. Steinbüchel, B. Blasius, R. Reinhardt, and R. Rabus (2012) Physiological and proteomic adaptation of "Aromatoleum aromaticum" EbN1 to low growth rates in benzoate-limited, anoxic chemostats. Journal of Bacteriology 194, 2165-80 doi: 10.1128/JB.06519-11
	A. Steinbach, S. Fraas, J. Harder, E. Warkentin, P. Kroneck, and U. Ermler (2012) Crystal structure of a ring-cleaving cyclohexane-1,2-dione hydrolase, a novel member of the thiamine diphosphate enzyme family. FEBS Journal 279, 1209-1219 DOI: 10.1111/j.1742-4658.2012.08513.x
	F. Lüddeke, A. Wülfing, M. Timke, F. Germer, J. Weber, A. Dikfidan, T. Rahnfeld, D. Linder, A. Meyerdierks and J. Harder (2012) Geraniol and geranial dehydrogenases induced in anaerobic monoterpene degradation by Castellaniella defragrans. Applied Environmental Microbiology 78, 2128-2136 DOI: 10.1128/AEM.07226-11
	S. Lahme, J. Harder and R. Rabus (2012) Anaerobic degradation of 4-methylbenzoate by a new denitrifying bacterium, strain pMbN1. Applied Environmental Microbiology 78, 1606-1610 DOI: 10.1128/AEM.06552-11
	A.-E.Rotaru, R.Schauer, C.Probian, M.Mussmann and J.Harder (2012) Visualization of candidate division OP3 cocci in limonene degrading methanogenic cultures. Journal of Microbiology and Biotechnology 22, 457–461. DOI: 10.4014/jmb.1110.10055
2011	A.K. Steinbach, S. Fraas, J. Harder, A. Tabbert, H. Brinkmann, A. Meyer, U. Ermler and Peter M.H. Kroneck (2011) Cyclohexane-1,2-dione hydrolase from denitrifying Azoarcus sp. strain 22Lin, a novel member of the thiamine diphosphate enzyme family. Journal of Bacteriology 193, 6760-6769 doi: 10.1128/JB.05348-11
	F.Lüddeke and J.Harder (2011) Enantiospecific (S)-(+)-linalool formation from β-myrcene by linalool dehydratase-isomerase. Zeitschrift für Naturforschung 66c, 409-412
	C.S.Frank, P.Langhammer, B.M.Fuchs and J.Harder (2011) Ammonia and attachment of Rhodopirellula baltica. Archives of Microbiology 193, 365-372 DOI: 10.1007/s00203-011-0681-1
2010	D.Brodkorb, M.Gottschall, R.Marmulla, F.Lüddeke and J.Harder (2010) Linalool dehydratase-isomerase, a bifunctional enzyme in the anaerobic degradation of monoterpenes. Journal of Biological Chemistry 285, 30436-30442 DOI: 10.1074/jbc.M109.084244
	N.Winkelmann, U.Jaekel, C.Meyer, W.Serrano, R.Rachel, R.Rosselló-Mora and J.Harder (2010) Determination of the diversity of Rhodopirellula isolates from European seas by multilocus sequence analysis. Applied and Environmental Microbiology 76, 776-785 DOI:10.1128/AEM.01525-09
	A.-E.Rotaru, C.Probian, H.Wilkes and J.Harder (2010) Highly enriched Betaproteobacteria growing anaerobically with p-xylene and nitrate FEMS Microbiology Ecology 71, 460-468 Published Online: Nov 11 2009 9:44AM DOI: 10.1111/j.1574-6941.2009.00814.x
	R.Schauer, C.Bienhold, A.Ramette and J.Harder (2010) Bacterial diversity and biogeography in deep-sea surface sediments of the South Atlantic Ocean ISME Journal 4, 159-170 DOI: 10.1038/ismej.2009.106
2009	P.Wecker, C.Klockow, A.Ellrott, C.Quast, P.Langhammer, J.Harder and F.O.Glöckner (2009) Transcriptional response of the model planctomycete Rhodopirellula baltica SH1T to changing environmental conditions BMC Genomics 10, 410. DOI: 10.1186/1471-2164-10-410
	S.Fraas, A.K.Steinbach, A.Tabbert, J.Harder, U.Ermler, K.Tittmann, A.Meyer and P.M.H.Kroneck (2009) Cyclohexane-1,2-dione hydrolase: A new tool to degrade alicyclic compounds Journal of Molecular Catalyses B: Enzymatic 61, 47-49
	J.Harder (2009) Anaerobic degradation of isoprene-derived compounds. In: Handbook of hydrocarbon and lipid microbiology. Timmis, K.N. (ed.), Springer, Heidelberg. DOI: 10.1007/978-3-540-77587-4_68
	J.Harder (2009) Isoprene, isoprenoids and sterols. In: Handbook of hydrocarbon and lipid microbiology. Timmis, K.N. (ed.), Springer, Heidelberg. DOI: 10.1007/978-3-540-77587-4_7
	N.Winkelmann and J.Harder (2009) An improved isolation method for attached-living Planctomycetes of the genus Rhodopirellula Journal of Microbial Methods 77, 276-284 DOI: 10.1016/j.mimet.2009.03.002
	S.Yan, B.Fuchs, S.Lenk, J.Harder, J.Wulf, N.-Z.Jiao and R.Amann (2009) Biogeography and phylogeny of the NOR5/OM60 clade of Gammaproteobacteria Systematic and Applied Microbiology 32, 124-139 DOI: 10.1016/j.syapm.2008.12.001
2008	S.Liebner, J.Harder and D.Wagner (2008) Bacteria diversity and community structure in polygonal tundra soils from Samoylov Island, Lena Delta, Siberia International Microbiology 11, 195-202 DOI: 10.2436/20.1501.01.60
	M.Hünken, J.Harder and G.O.Kirst (2008) Epiphytic bacteria on antarctic ice diatom Amphiprora kufferathii MANGUIN cleave hydrogen peroxide produced during algal photosynthesis Plant Biology 10, 519-526
2006	A.Ianora, M.Boersma, R.Casotti, A.Fontana, J.Harder, F.Hoffman, H.Pavia, P.Potin, S.A.Poulet, G.Toth (2006) New trends in marine chemical ecology Estuaries and Coasts 29, 531-551 DOI: 10.1007/BF02784281
	F.Musat, J.Harder, F.Widdel (2006) Study of nitrogen fixation in microbial communities of oil-contaminated marine sediment microcosm Environmental Microbiology 8, 1834-1843 DOI : 0.1111/j.1462-2920.2006.01069.x
2005	B.P.Koch, J.Harder, R.J.Lara, G.Kattner (2005) The effect of selective microbial degradation on the composition of mangrove derived pentacyclic triterpenols in surface sediments Organic Geochemistry 36, 273-285 DOI:10.1016/j.orggeochem.2004.07.019
2004	N.Zhilina, R.Appel, C.Probian, E.L.Brossa, J.Harder, F.Widdel, G.A.Zavarin (2004) Alkaliflexus imshenetskii gen. nov. sp. nov., a new alkaliphilic gliding carbohydrate-fermenting bacterium with propionate formation from a soda lake Archives of Microbiology 182, 244-253 DOI: 10.1007/s00203-004-0722-0
2003	C.Probian, A.Wülfing, J.Harder (2003) Anaerobic mineralization of quaternary carbon atoms: isolation of denitrifying strains on pivalic acid (2,2-dimethylpropionic acid) Applied and Environmental Microbiology 69, 1866-1870 DOI: 10.1128/AEM.69.3.1866-1870.2003
2002	B.K.J.Pohorelic, J.K.Voordouw, E.Lojou, A.Dolla, J.Harder, G.Voordouw (2002) Effects of the deletion of genes encoding Fe-only hydrogenase of Desulfovibrio vulgaris Hildenborough on hydrogen and lactate metabolism Journal of Bacteriology 184, 679-686 DOI: 10.1128/JB.184.3.679-686.2002
2000	J.Harder, U.Heyen, C.Probian, S.Foß (2000) Anaerobic utilization of essential oils by denitrifying bacteria Biodegradation 11, 55-63 DOI: 10.1023/A:1026552724696
	U.Heyen, J.Harder(2000) Geranic acid formation, an initial reaction of anaerobic monoterpene metabolism in denitrifying Alcaligenes defragrans Applied and Environmental Microbiology 66, 3004-3009 link
	P.Ehrenreich, A.Behrends, J.Harder, F.Widdel (2000) Anaerobic oxidation of alkanes by newly isolated denitrifying bacteria Archives of Microbiology 173, 58-64 DOI: 10.1007/s002030050008
1999	C.Knoblauch, B.B.Jørgensen, J.Harder (1999) Community size and metabolic rates of psychrophilic sulfate-reducing bacteria in arctic marine sediments Applied and Environmental Microbiology 65, 4230-4233 link
	J.Harder, S.Foß (1999) Anaerobic formation of the aromatic hydrocarbon p-cymene from monoterpenes by methanogenic enrichment cultures Geomicrobiology Journal 16, 295-305 DOI: 10.1007/s002030050784
	O.Kniemeyer, C.Probian, R.Rosselló-Mora, J.Harder (1999) Anaerobic mineralization of quaternary carbon atoms: isolation of denitrifying bacteria on dimethylmalonate Applied and Environmental Microbiology 65, 3319-3324 DOI: 10.1128/AEM.69.3.1866-1870.2003
	P.B.Hylemon, J.Harder (1999) Biotransformation of monoterpenes, bile acids, and other isoprenoids in anaerobic ecosystems FEMS Microbiology Reviews 22, 475-488 DOI:10.1016/S0168-6445(98)00027-8
1998	U.Heyen, J.Harder (1998) Cometabolic isoterpinolene formation from isolimonene by denitrifying Alcaligenes defragrans FEMS Microbiology Letters 169, 67-71 DOI: 10.1111/j.1574-6968.1998.tb13300.x
	S.Foß, J.Harder (1998) Thauera linaloolentis sp. nov. and Thauera terpenica sp. nov., isolated on oxygen-containing monoterpenes (linalool, menthol and eucalyptol) and nitrate Systematic and Applied Microbiology 21, 365-373
	S.Foß, U.Heyen, J.Harder (1998) Alcaligenes defragrans sp. nov., description of four strains isolated on alkenoic monoterpenes ((+)-menthene, alpha-pinene, 2-carene, and alpha-phellandrene) and nitrate Systematic and Applied Microbiology 21, 237-244
1997	J.Harder (1997) Anaerobic degradation of cyclohexane-1,2-diol by a new Azoarcus species Archives of Microbiology 168, 199-204 DOI: 10.1007/s002030050488
	T.F.Ferdelman, C.Lee, S.Pantoja, J.Harder, B.M.Bebout, H.Fossing (1997) Sulfate reduction and methanogenesis in a Thioploca-dominated sediment off the coast of Chile Geochimica et Cosmochimica Acta 61, 3065-3071 DOI:10.1016/S0016-7037(97)00158-0
	J.Harder (1997) Species-independent maintenance energy and natural population sizes FEMS Microbiology Ecology 23, 39-44 DOI: 10.1111/j.1574-6941.1997.tb00389.x
	S.Foß, J.Harder (1997) Microbial transformation of a tertiary allylalcohol: regioselective isomerisation of linalool to geraniol without nerol formation FEMS Microbiology Letters 149, 71-75 DOI: 10.1111/j.1574-6968.1997.tb10310.x
	J.Harder, C.Probian (1997) Anaerobic mineralisation of cholesterol by a novel type of denitrifying bacterium Archives of Microbiology 167, 269-274 DOI: 10.1007/s002030050442
	J.Harder (1997) Anaerobic methane oxidation by bacteria employing 14C-methane uncontaminated with 14C-carbon monoxide Marine Geology 137, 13-23 DOI:10.1016/S0025-3227(96)00075-8
1995	J.Harder, C.Probian (1995) Microbial degradation of monoterpenes in the absence of molecular oxygen Applied and Environmental Microbiology 61, 3804-3808 link
1993	J.Harder (1993) Ribonucleotide reductases and their occurrence in microorganisms: a link to the RNA/DNA transition FEMS Microbiology Reviews 12, 275-294
	X.Sun, J.Harder, M.Krook, H.Jörnvall, B.-M.Sjöberg, P.Reichard (1993) A possible glycine radical in anaerobic ribonucleotide reductase from Escherichia coli: nucleotide sequence of the cloned nrdD gene Proceedings of the National Academy of Science USA 90, 577-581 link
1992	J.Harder, R.Eliasson, E.Pontis, M.D.Ballinger, P.Reichard (1992) Activation of the anaerobic ribonucleotide reductase from Escherichia coli by S-adenosylmethionine Journal of Biological Chemistry 267, 25548-25552 link
	R.Eliasson, E.Pontis, M.Fontecave, C.Gerez, J.Harder, H.Jörnvall, M.Krook, P.Reichard (1992) Characterization of components of the anaerobic ribonucleotide reductase system from Escherichia coli Journal of Biological Chemistry 267, 25541-25547 link
1990	J.Harder, H.Follmann (1990) Identification of a free radical and oxygen dependence of ribonucleotide reductase in yeast Free Radical Research Communications 10, 281-286
1989	J.Harder, H.Follmann, K.Hantke (1989) Deoxyribonucleotide synthesis in an Escherichia coli mutant (H1491) which lacks ribonucleotide reductase subunit B2 Zeitschrift für Naturforschung 44c, 715-718
1987	J.Harder, H.Follmann (1987) Characterization of the free radical in a plant ribonucleotide reductase FEBS Letters 222, 171-174 DOI:10.1016/0014-5793(87)80214-4