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Article
Abele, D. ![]() ![]() ![]() Pelagic and benthic communities of the Antarctic ecosystem of Potter Cove: Genomics and ecological implications ,
Marine Genomics
.
doi:https://doi.org/10.1016/j.margen.2017.05.001
, hdl:10013/epic.51144
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Article
Vázquez, S. , Monien, P. , Minetti, R. P. , Jürgens, J. , Curtosi, A. , Villalba Primitz, J. , Frickenhaus, S. ![]() ![]() Bacterial communities and chemical parameters in soils and coastal sediments in response to diesel spills at Carlini Station, Antarctica ,
Science of The Total Environment,
605-60
,
pp. 26-37
.
doi:https://doi.org/10.1016/j.scitotenv.2017.06.129
, hdl:10013/epic.51490
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Article
Mau, S. , Blees, J. , Helmke, E. , Niemann, H. and Damm, E. ![]() Different methanotrophic potentials in stratified polar fjord water (Storfjorden, Spitsbergen) identified by using a combination of methane oxidation techniques ,
Biogeosciences Discussion,
10
,
pp. 6461-6491
.
doi:https://doi.org/10.5194/bgd-10-6461-2013
, hdl:10013/epic.42043
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Article
Zendah, I. , Shaaban, K. A. , Helmke, E. , Maier, A. , Fiebig, H. and Laatsch, H.
(2012)
Barakacin: a thiazolyl-indole alkaloid isolated from a ruminal Pseudomonas sp. ,
Zeitschrift Naturf. B,
67b
,
pp. 417-420
.
doi:https://doi.org/10.5560/ZNB.2011-0277
, hdl:10013/epic.42048
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Article
Shaaban, K. A. , Helmke, E. , Keller, G. , Fiebig, H. and Laatsch, H.
(2011)
Glucopiericidin C: a cytotoxic pieridin glucoside antibiotic produced by a marine Streptomyces isolate. ,
Journal of Antibiotics,
64
(2),
pp. 205-209
.
doi:https://doi.org/10.1038/ja.2010.125
, hdl:10013/epic.42049
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Article
Abdalla, M. A. , Helmke, E. and Laatsch, H.
(2010)
Fujianmycin C, A Bioactive Angucyclinone from a Marine Derived Streptomyces sp. B6219 ,
Natural Product Communications,
12
,
pp. 1917-1920
.
hdl:10013/epic.36746
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Article
Damm, E. ![]() ![]() Methane production in aerobic oligothrophic surface water in the central Arctic Ocean ,
Biogeosciences,
7
(3),
pp. 1099-1108
.
hdl:10013/epic.34729
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Article
Rahman, H. , Shabaan, M. , Shabaan, K. A. , Saleem, M. , Helmke, E. , Grün-Wollny, I. and Laatsch, H.
(2009)
An Imidazopyridinone and further metabolites from Streptomcetes ,
Natural product communications,
4
,
pp. 965-970
.
hdl:10013/epic.33909
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Article
Hawas, U. W. , Shaaban, M. , Shabaan, K. A. , Speitling, M. , Maier, A. , Keller, G. , Fiebig, H. H. , Meiners, M. , Helmke, E. and Laatsch, H.
(2009)
Mansouramycins A-D, Cytotoxic Isoquinolinequinones from a marine streptomycete ,
Journal of Natural Products,
72
(12),
pp. 2120-2124
.
doi:https://doi.org/10.1021/np900160g
, hdl:10013/epic.33911
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Article
Schuhmann, I. , Yao, C. B. F. F. , Al-Zereini, W. , Anke, H. , Helmke, E. and Laatsch, H.
(2009)
Nitro derivatives from the Arctic ice bacterium Salegentibacter sp. isolate T436 ,
Journal of Antibiotics,
62
,
pp. 453-460
.
doi:https://doi.org/10.1038/ja.2009.71
, hdl:10013/epic.33910
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Article
Shaaban, K. A. , Shaaban, M. , Facey, P. , Fotso, S. , Frauendorf, H. , Helmke, E. , Maier, A. , Fiebig, H. H. and Laatsch, H.
(2008)
Electrospray ionization mass spectra of piperazimycins A and B and gamma-butyrolactones from a marine-derived Streptomyces sp. ,
Journal of Antibiotics,
61
,
pp. 736-746
.
hdl:10013/epic.33908
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Article
Sohn, R. A. , Willis, C. , Humphris, S. , Shank, T. M. , Singh, H. , Edmonds, H. N. , Kunz, C. , Hedman, U. , Helmke, E. , Jakuba, M. , Liljebladh, B. , Linder, J. , Murphy, C. , Nakamura, K. I. , Sato, T. , Schlindwein, V. ![]() Explosive volcanism on the ultraslow-spreading Gakkel ridge, Arctic Ocean ,
Nature,
453
(7199),
pp. 1236-1238
.
doi:https://doi.org/10.1038/nature07075
, hdl:10013/epic.31132
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Article
Shaaban, M. , Schröder, D. , Shaaban, K. A. , Helmke, E. , Grün-Wollny, I. , Wagner-Döbler, I. and Laatsch, H.
(2007)
Flazin, Perlolyrin, and other ß-Carbolines from marine derived Bacteria ,
Revista Latinoamericana de Química,
35
,
pp. 58-67
.
hdl:10013/epic.31131
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Article
Al-Zereini, W. , Schuhmann, I. , Laatsch, H. , Helmke, E. and Anke, H.
(2007)
New aromatic nitro compounds from Salegentibacter sp T436, an Arctic Sea ice bacterium: Taxonomy, fermentation, isolation, and biological activities ,
Journal of Antibiotics,
60
,
pp. 301-308
.
hdl:10013/epic.28795
|
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Article
Poumale, H. M. P. , Ngadjui, B. T. , Helmke, E. and Laatsch, H.
(2006)
New anthraquinones from a marine Streptomyces sp. isolation, structure determination and biological activities ,
Zeitschrift für Naturforschung section B-A Journal of chemical Sciences,
61
,
pp. 1450-1454
.
hdl:10013/epic.28794
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Article
Yao, C. B. F. , Schiebel, M. , Helmke, E. , Anke, H. and Laatssch, H.
(2006)
Prefluostatin and new urauchimycin derivatives produced by Streptomycete isolates ,
Zeitschrift für Naturforschung Section B-A Journal of Chemical Sciences,
61
,
pp. 320-325
.
hdl:10013/epic.28793
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Article
Kock, I. , Maskey, R. P. , Biabani, M. A. , Helmke, E. and Laatsch, H.
(2005)
1-Hydroxy-1-norresistomycin and resistoflavin methylether: new antibiotics from marine-derived streptomycetes ,
Journal of antibiotics,
58
(8),
pp. 530-534
.
hdl:10013/epic.24226
|
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Article
Helmke, E.
(2005)
The Expeditions ANTARKTIS XXI/3-4-5 of the research vessel "POLARSTERN" in 2004 ,
Berichte zur Polar- und Meeresforschung, 500,
269
,
pp. 277-278
.
hdl:10013/epic.24500
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Article
Gerdes, B. , Brinkmeyer, R. , Dieckmann, G. and Helmke, E.
(2005)
Influence of crude oil on changes of bacterial communities in Arctic sea-ice ,
Fems microbiology ecology,
53
,
pp. 129-139
.
hdl:10013/epic.22198
|
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Article
Dickschat, J. S. , Helmke, E. and Schulz, S.
(2005)
Volatile Organic compounds from arctic bacteria of the Cytophaga-Flavobacterium-Bacteroides group. A retrobiosynthetic approach in chemotaxonomic investigations ,
Chemistry & Biodiversity,
2
,
pp. 318-353
.
hdl:10013/epic.22199
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Article
Maskey, R. P. , Helmke, E. , Kayser, O. , Fiebig, H. H. , Maier, A. , Busche, A. and Laatsch, H.
(2004)
Anti-cancer and anti-bacterial trioxacarcins with high anti-malaria activity from a marine Streptomycete and their absolute stereochemistry ,
Journal of antibiotics,
57
,
pp. 771-779
.
hdl:10013/epic.28791
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Article
Maskey, R. P. , Sevvana, M. , Uson, I. , Helmke, E. and Laatsch, H.
(2004)
Gutingimycin: A Highly Complex Metabolite from a Marine Streptomycete ,
Angewandte chemie-international edition,
43
,
pp. 1281-1283
.
doi:https://doi.org/10.1002/anie.200352312
, hdl:10013/epic.20687
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Article
Maskey, R. P. , Sevvana, M. , Uson, I. , Helmke, E. and Laatsch, H.
(2004)
Gutingimycin: ein komplexer Metabolit aus einem marinen Streptomyceten ,
Angewandte Chemie,
116
,
pp. 1301-1303
.
doi:https://doi.org/10.1002/ange.200352312
, hdl:10013/epic.20688
|
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Article
Sobolevskaya, M. P. , Fotso, S. , Havash, U. , Denisenko, V. A. , Helmke, E. , Prokofeva, N. G. , Kuznetsova, T. A. , Laatsch, H. and Elyakov, G. B.
(2004)
Metabolites of the sea isolate of bacteria Streptomyces SP 6167 ,
Chemistry of natural compounds,
40
,
pp. 282-285
.
hdl:10013/epic.24499
|
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Article
Sobolevskaya, M. P. , Fotso, S. , Havash, U. , Denisenko, V. A. , Helmke, E. , Prokofeva, N. G. , Kuznetsova, T. A. , Laatsch, H. and Elyakov, G. B.
(2004)
Metabolites of the sea isolate of bacteria Streptomyces SP 6167. ,
Chemistry of natural compounds,
40
(3),
pp. 282-285
.
doi:https://doi.org/10.1023/B:CONC.0000039143.59854.6e
, hdl:10013/epic.24508
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Article
Stritzke, K. , Schulz, S. , Laatsch, H. , Helmke, E. and Beil, W.
(2004)
Novel Caprolactones from a Marine Streptomycete ,
Journal of natural products,
67
,
pp. 395-401
.
doi:https://doi.org/10.1021/np030321z
, hdl:10013/epic.20637
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Article
Brinkmeyer, R. , Glöckner, F. O. ![]() Predominance of beta-proteobacteria in summer melt pools on Arctic pack ice ,
Limnology and oceanography,
49
(4),
pp. 1013-1021
.
hdl:10013/epic.21101
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Article
Helmke, E. and Weyland, H.
(2004)
Psychrophilic versus Psychrotolerant bacteria- Occurrence and significance in polar and temperate marine habitats ,
Cellular and molecular biology,
50
(5),
pp. 553-561
.
doi:https://doi.org/10.1170/T545
, hdl:10013/epic.21828
|
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Article
Brinkmeyer, R. , Knittel, K. , Jürgens, J. , Weyland, H. , Amann, R. and Helmke, E.
(2003)
Diversity and structure of bacterial communities in Arctic versus Antarctic sea ice: A comparison ,
Applied and environmental microbiology,
69
,
pp. 6610-6619
.
hdl:10013/epic.16788
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Article
Maskey, R. P. , Helmke, E. and Laatsch, H.
(2003)
Himalomycin A and B: Isolation and structure elucidation of new fridamycin type antibiotics from a marine Streptomyces isolate ,
Journal of antibiotics,
56
,
pp. 942-949
.
hdl:10013/epic.24296
|
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Article
Maskey, R. P. , Kock, I. , Helmke, E. and Laatsch, H.
(2003)
Isolation and Structure Determination of Phenazostatin D, a New Phenazine from a Marine Actinomycete Isolate Pseudonocardia sp. B6273 ,
Zeitschrift fur naturforschung section b-a journal of chemical sciencesb,
58
,
pp. 692-694
.
hdl:10013/epic.19638
|
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Article
Borriss, M. , Helmke, E. , Hanschke, R. and Schweder, T.
(2003)
Isolation and characterization of marine psychrophilic phage-host-systems from Arctic sea ice ,
Extremophiles,
7
,
pp. 377-384
.
doi:https://doi.org/10.1007/s00792-003-0334-7
, hdl:10013/epic.19168
|
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Article
Helmke, E.
(2003)
Ist Leben auf dem Jupiter Mond Europa möglich? ,
Raumfahrt Concret,
3
,
pp. 21-24
.
hdl:10013/epic.19762
|
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Article
Brinkmeyer, R. , Glöckner, F. O. ![]() Predominance of beta-proteobacteria in summer melt pools on Arctic pack ice ,
Limnology and Oceanography.
.
hdl:10013/epic.19320
|
|
Article
Maskey, R. P. , Pusecker, K. , Speitling, M. , Monecke, P. , Helmke, E. and Laatsch, H.
(2002)
2- and 4-Chartreusin-monoacetates, new Natural Products with Unusual Anisotropy Effects from the marine Isolates Streptomyces sp. B5525 and B5342 ,
Zeitschrift fur naturforschung section b-a journal of chemical sciencesb,
57
,
pp. 823-829
.
hdl:10013/epic.16060
|
|
Article
Asolkar, R. N. , Maskey, R. P. , Helmke, E. and Laatsch, H.
(2002)
Chalcomycin B, a new macrolide antibiotic from the marine isolate Streptomyces sp B7064 ,
Journal of antibiotics,
55
,
pp. 893-898
.
hdl:10013/epic.20386
|
|
Article
Helmke, E. and Quéric, N.
(2002)
Deep-sea microbiology ,
Berichte zur Polar- und Meeresforschung,
422
,
pp. 24-26
.
hdl:10013/epic.18242
|
|
Article
Maskey, R. P. , Kock, I. , Shaaban, M. , Grün-Wollny, I. , Helmke, E. , Mayer, F. , Wagner-Döbler, I. and Laatsch, H.
(2002)
Low molecular weight oligo-ß-hydroxybutyric acids and 3-hydroxy-N-phenethyl-butyramide- new products from microorganisms ,
Polymer Bulletin,
49
,
pp. 87-93
.
hdl:10013/epic.16577
|
|
Article
Maskey, R. P. , Helmke, E. , Fiebig, H. H. and Laatsch, H.
(2002)
Parimycin: Isolation and stucture elucidation of a novel cytotoxic 2,3-dihydroquinizarin analogue of gamma-indomycinone from a marine streptomycete isolate ,
Journal of antibiotics,
55
,
pp. 1031-1035
.
hdl:10013/epic.20384
|
|
Article
Riemann, F. and Helmke, E.
(2002)
Symbiotic Relations of Sediment-Agglutinating Nematodes and Bacteria in Detrital Habitats: The Enzyme-Sharing Concept ,
Marine ecology-pubblicazioni della stazione zoologica di napoli i:,
23
(2),
pp. 93-113
.
doi:https://doi.org/10.1046/j.1439-0485.2002.02765.x
, hdl:10013/epic.16021
|
|
Article
Le, V. T. , Ho, T. , Helmke, E. , Le, T. B. and Schweder, T.
(2001)
Cloning of two pectate lyase genes from the marine Antarctic bacterium Pseudoalteromonas haloplanktis strain ANT/505 and characterization of the enzymes ,
Extremophiles,
5
(1),
pp. 35-44
.
doi:https://doi.org/10.1007/s007920000170
, hdl:10013/epic.14884
|
|
Article
Bendt, A. , Hüller, H. , Kammel, U. , Helmke, E. and Schweder, T.
(2001)
Cloning, expression, and characterization of a chitinase gene from the Antarctic psychrotolerant bacterium Vibrio sp. strain Fi:7 ,
Extremophiles,
5
(2),
pp. 119-126
.
doi:https://doi.org/10.1007/s007920100179
, hdl:10013/epic.14885
|
|
Article
Mukku, J. R. V. , Speitling, M. , Laatsch, H. and Helmke, E.
(2000)
New Butenolides from Two Marine Streptomycetes ,
Journal of Natural Products,
63
,
pp. 1570-1572
.
hdl:10013/epic.14798
|
|
Article
Mukku, J. R. V. , Speitling, M. , Laatsch, H. and Helmke, E.
(2000)
New Butenolides from Two Marine Streptomycetes ,
Journal of Natural Products,
63
,
pp. 1570-1572
.
hdl:10013/epic.14800
|
|
Article
Biabani, M. A. F. , Bakke, M. , Lovisetto, B. , Laatsch, H. , Helmke, E. and Weyland, H.
(1998)
Anthranilamides: New antimicroalgal active substances from a marine Streptomyces sp ,
Journal of antibiotics,
51
(3),
pp. 333-340
.
hdl:10013/epic.10885
|
|
Article
Pusecker, K. , Laatsch, H. , Helmke, E. and Weyland, H.
(1997)
Dihydrophencomycin methyl ester, a new phenazine derivative from a marine Streptomycete ,
Journal of antibiotics,
50
(6),
pp. 479-483
.
hdl:10013/epic.13056
|
|
Article
Helmke, E. and Weyland, H.
(1995)
Bacteria in sea ice and underlying water of the eastern Weddell Sea in midwinter ,
Marine Ecology Progress Series,
117
,
pp. 269-287
.
hdl:10013/epic.11859
|
|
Article
Balk-Bindseil, W. , Helmke, E. , Weyland, H. and Laatsch, H.
(1995)
Maremycin A and B, new diketopiperazines from a marine Streptomyces sp. ,
Liebigs Annalen,
1995
,
pp. 1291-1294
.
hdl:10013/epic.10751
|
|
Article
Rüger, H. J. , Helmke, E. , Grossmann, S. , Schaumann, K. and Tan, T. L.
(1995)
Mikrobiologie am Alfred-Wegener-Institut für Polar- und Meeresforschung in Bremerhaven ,
Mitteilungen Deutsche Gesellschaft für Meeresforschung,
95
(2),
pp. 5-10
.
hdl:10013/epic.13290
|
|
Article
Helmke, E. and Weyland, H.
(1991)
Effect of temperature on extracellular enzymes occurring in permanently cold marine environments ,
Kieler Meeresforschung ,Sonderheft. 8,
pp. 198-204
.
hdl:10013/epic.11857
|
|
Article
Weyland, H. and Helmke, E.
(1989)
Barophilic and psychrophilic bacteria in the Antarctic Ocean ,
Recent advances in microbial ecology Proceedings of the 5th International Symposium on Microbial Ecology (T Hattori et al eds ) Japan Scient. Soc. Press, Tokyo,pp.,
pp. 43-47
.
hdl:10013/epic.13950
|
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Article
Weyland, H. and Helmke, E.
(1988)
Actinomycetes in the marine environment ,
Biology of Actinomycetes '88 (Y Okami, ed ) Japan Scientif Soc Press , Tokyo,
pp. 294-299
.
hdl:10013/epic.13949
|
|
Article
Helmke, E. and Weyland, H.
(1986)
Effect of hydrostatic pressure and temperature on the activity and synthesis of chitinases of Antarctic Ocean bacteria ,
Marine Biology,
91
,
pp. 1-7
.
hdl:10013/epic.11856
|
|
Book
Boetius, A. ![]() ![]() Leben im und unter dem Eis / Beck, E. (editor) ,
Weinheim,
Wiley-VCH Verlag,
246 p.,
ISBN: 978-3-52733212-0
.
hdl:10013/epic.cd6b6d0c-a0ba-49ca-85d5-28fdacf65191
|
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Inbook
Boetius, A. ![]() ![]() Leben im und unter dem Eis. / Beck, E. (editor) ,
In: Die Vielfalt des Lebens: Wie hoch, wie komplex, warum?,
Die Vielfalt des Lebens: Wie hoch, wie komplex, warum?,
Wiley-VCH
.
hdl:10013/epic.40605
|
|
Inbook
Helmke, E. and Gerdes, B.
(2008)
Effect of oil contamination and bioremediation on bacterial communities in polar sea-ice environments ,
Microbes and the Environments: Perspectives and Challenges.,
ISBN: 978-7-03-021405-8
.
hdl:10013/epic.31133
|
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Conference
-Talk
Uhlig, C. ![]() ![]() Degradation of DMSP in Antarctic winter sea ice: Who is responsible? ,
Gordon Research Seminar on Polar Marine Sciences,
Barga, Italy,
14 March 2015 - 15 March 2015
.
hdl:10013/epic.45345
|
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Conference
-Poster
Helmke, E. , Beszteri, B. ![]() ![]() ![]() ![]() GENOMICS OF GLACIECOLA SP., A PREDOMINANT BACTERIUM IN ANTARCTIC WINTER SEA-ICE ,
Annual Conference of the Association for General and Applied Microbiology (VAAM) in collaboration with the Royal Netherlands Society for Microbiology (KNVM),
Bremen,
March 2013 - unspecified
.
hdl:10013/epic.42050
|
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Conference
-Poster
Helmke, E. , Jürgens, J. , Uhlig, C. ![]() Bacterial communities of sea ice, melt pools, and surface water in the Central Arctic Ocean during summer 2011 ,
5th Int. Conference on Polar and Alpine Microbiology,
Big Sky, Montana, USA,
2013 - unspecified
.
hdl:10013/epic.42052
|
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Conference
-Poster
Toebe, K. , Wilhelms, F. ![]() ![]() ![]() Exploration of microbial biodiversity in polar glacial ice ,
Jahrestagung der Vereinigung für Allgemeine und Angewandte Mikrobiologie (VAAM) zusammen mit der Koninklijke Nederlands Vereniging voor Microbiologie (KNVM),
Congress Center Bremen and Messe Bremen,
10 March 2013 - 13 March 2013
.
hdl:10013/epic.41819
|
|
Conference
-Poster
Vázquez, S. , Jürgens, J. , Monien, P. , Minetti, R. P. , MacCormack, W. P. and Helmke, E.
(2012)
Response of bacterial soil communities to a small diesel-spill at the Argentine station Carlini on King George Island (Antarctica) ,
14th Int. Symposium on Microbial Ecology,,
Copenhaven, Denmark
.
hdl:10013/epic.42051
|
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Conference
-Poster
Damm, E. ![]() Hotspots of methane formation A response to melting sea ice in nitrate stressed Polar surface water ,
European Geosciences Union General Assembly, Vienna, Austria08 April 2011.
.
hdl:10013/epic.37322
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Conference
-Poster
Helmke, E. , Thoms, S. , Beszteri, B. ![]() ![]() GENOMICS OF GLACIECOLA SP.ANT9081: A PREDOMINANT BACTERIUM IN ANTARCTIC WINTER SEA-ICE ,
SCAR Open Science Conference, Buenos Aires, Argentina, August
.
hdl:10013/epic.35665
|
|
Conference
-Invited talk
Helmke, E.
(2009)
Nutzung von Mikroorganismen und Enzymen aus polaren Gewässern in der Lebensmitteltechnologie. ,
Symposium Fortschritte in der Lebensmitteltechnologie.
.
hdl:10013/epic.33655
|
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Conference
-Invited talk
Helmke, E. , Töbe, K. , Wilhelms, F. ![]() Exploration of microbial diversity in polar glacial ice and sub-glacial water ,
SCAR Open Science Conference, St Petersburg, Russia.
.
hdl:10013/epic.31108
|
|
Conference
-Invited talk
Helmke, E. and Gerdes, B.
(2007)
Effect of oil contamination and bioremediation on bacterial communities in polar sea-ice environments ,
China-Germany Symposium on Microbes and the Environment, September 2007, Beijing, China.
.
hdl:10013/epic.30066
|
|
Conference
-Talk
Sauter, E. ![]() ![]() ![]() Meerestechnologien für den Umweltschutz - Entwicklungen am Alfred-Wegener-Institut ,
Vortrag anlässlich des Besuches von Bundesumweltminister Sigmar Gabriel (MdB) am 21. März 2007.
.
hdl:10013/epic.26442
|
|
Conference
-Talk
Helmke, E. , Jürgens, J. , Tausendfreund, M. , Wollenburg, J. , Shank, T. , Edmundson, H. , Humphris, S. , Nakamura, K. , Liliebladh, B. , Windsor, P. , Singh, H. and Reves- Sohn, R.
(2007)
Microbial Communities at Non-Volcanic and Volcanic Sites of the Gakkel Ridge ,
AGU (American Geophysical Union) Fall Meeting, San Francisco, USA, December 2007.
.
hdl:10013/epic.31157
|
|
Conference
-Talk
Reves-Sohn, R. , Edmonds, H. , Humphris, S. , Shank, T. , Singh, H. , Helmke, E. , Jakuba, M. , Kunz, C. , Liljebladh, B. , Linder, J. , Murphy, C. , Nakamura, K. , Sato, T. , Schlindwein, V. ![]() Scientific Scope and Summary of the Arctic Gakkel Vents (AGAVE) Expedition ,
AGU Fall Meeting, San Francicso, December
.
hdl:10013/epic.28738
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Conference
-Poster
Baum, C. , Canfield, P. , Dubitscher, C. , Helmke, E. , Passow, U. , Reuter, K. , von Bistram, M. , Wendorff, J. , Flies, K. , Keim, E. , Schmidt, A. , Kerner, M. , Kroon, S. and Kroon, B.
(2006)
BioBod: Biofiltration mit Nanofasern ,
Bionik-Kongress Bremen.
.
hdl:10013/epic.26311
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Conference
-Poster
Helmke, E. , Jürgens, J. , Reuter, K. and Gerdes, B.
(2006)
Comparison between bacterial communities of different deep-sea basins in the east Atlantic Ocean ,
11th International Symposium on Microbial Ecology, Wien, Austria, 2006, A205.
.
hdl:10013/epic.28796
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Conference
-Invited talk
Helmke, E. , Jürgens, J. , Klauke, U. and Brinkmeyer, R.
(2005)
Potential of sea ice and benthic bacterial communities to adapt to changing environmental conditions. ,
Invited lecture, ASLO Summer Meeting 2005, 19-24 June, Santiago de Compostella, Spain.
.
hdl:10013/epic.24501
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Conference
-Invited talk
Helmke, E. and Gerdes, B.
(2005)
Response of marine microbial communities to environmental changes and to human impact in polar and temperate marine habitats ,
Workshop "Human activity and marine enivironment", Ningbo, ChinaOct. 2005.
.
hdl:10013/epic.24505
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Conference
-Poster
Helmke, E. , Jürgens, J. , Klauke, U. , Gerdes, B. and Brinkmeyer, R.
(2005)
Response of sea ice and benthic bacterial communities to changing environmental conditions ,
HGF-International Workshop on Diversity. München, GermanyOct. 2005.
.
hdl:10013/epic.31147
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Conference
-Invited talk
Helmke, E.
(2005)
Tolerance limits of microbes in ice environments ,
DFG Colloquium: Mars and the Terrestrial Plantes, BerlinAug. 2005.
.
hdl:10013/epic.24504
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Conference
-Poster
Helmke, E. , Jürgens, J. and Klauke, U.
(2004)
Cold and depth adaptation of benthic bacterial communities in the sea ice covered Arctic Ocean ,
0th International Symposium on Microbial Ecology, Cancun, Mexico.Aug. 2004.
.
hdl:10013/epic.24507
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Conference
-Poster
Helmke, E. , Jürgens, J. and Klauke, U.
(2004)
Comparison between benthic bacterial communities of the Southern and Arctic Ocean ,
XXVIII SCAR Open Science Conference, Bremen, Germany, 25-31 June, 2004,.
.
hdl:10013/epic.31146
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Conference
-Poster
Gerdes, B. , Brinkmeyer, R. , Dieckmann, G. and Helmke, E.
(2004)
Response of Arctic bacterial sea ice communities to contamination of crude oil ,
International Conference on Arctic Microbiology, 22-25 March 2004, Rovaniemi, Finland
.
hdl:10013/epic.24361
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Conference
-Invited talk
Helmke, E.
(2003)
Biodiversität mikrobieller Gemeinschaften in polaren Meeren ,
Kolloquium, Institut für Biotechnologische Wirkstoff-Forschung, Universität Kaiserslautern.
.
hdl:10013/epic.17843
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Conference
-Invited talk
Helmke, E. , Weyland, H. and Laatsch, H.
(2003)
From mangrove to polar sea ice - occurrence and bioactive potential of marine actinomcetes. ,
International Symposium on Biology of Actinomycetes, ISBA13, Melbourne AustraliaDec. 2003.
.
hdl:10013/epic.24506
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Conference
-Poster
Gerdes, B. , Brinkmeyer, R. , Dieckmann, G. and Helmke, E.
(2003)
Influence of oil on the development of bacterial communities in Arctic sea ice and melt pools ,
Workshop on Cold Adaptations of Aquatic Microorganisms, 11-14 May 2003, Bremen, Germany.
.
hdl:10013/epic.24366
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Conference
-Invited talk
Helmke, E.
(2001)
Biodiversity microbial communities in polar seas ,
Ladenburger Diskurs zum Thema : Marine Biodiversity.
.
hdl:10013/epic.17940
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Conference
-Poster
Helmke, E. , Jürgens, J. , Drebing, W. and Weber, K.
(2000)
Occurrence and function of a hydrophobic polyene in cold and pressure adapted bacteria ,
Extremophiles, Hamburg.Sept. 2000.
.
hdl:10013/epic.31870
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Conference
-Invited talk
Helmke, E.
(1999)
From ecology to biotechnology of sea ice bacteria ,
Marine biotechnology and biosensoric symposium, Greifswald
.
hdl:10013/epic.17840
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Conference
-Invited talk
Helmke, E.
(1999)
Ökologische und physiologische Charakteristika der arktischen und antarktischen Meereisflora ,
Institut für Polarökologie, Universität Kiel.
.
hdl:10013/epic.17845
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Conference
-Invited talk
Helmke, E.
(1997)
Leben unter hohem hydrostatischen Druck ,
Kolloquium des Inst. f. organische Chemie der Universität Göttingen.
.
hdl:10013/epic.17849
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Conference
-Invited talk
Helmke, E.
(1997)
Sind psychrophile and barophile Bakterien Kuriosa oder erfüllen sie an extremen Standorten wesentliche Funktionen ,
Kolloquium des Inst. f. Mikrobiologie und Molekularbiologie der Universität Greifswald.
.
hdl:10013/epic.17848
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Conference
-Invited talk
Helmke, E.
(1997)
Welche Rolle spielen psychrophile und barophile Bakterien in den pelagischen und benthischen Tiefseegemienschaften des Südpolarmeeres? ,
Kolloquium des Instituts für Meereskunde Kiel.
.
hdl:10013/epic.17846
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Conference
-Invited talk
Helmke, E.
(1995)
Mikrobielle Besiedlung und Abbau partikulärer Substanz in kalten Habitaten ,
Kolloquium des Inst. f. Technische Biochemie der Universität Stuttgart.
.
hdl:10013/epic.17868
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Conference
-Invited talk
Helmke, E.
(1995)
Mikrobielle Besiedlung und Abbau partikulärer Substanz in kalten Habitaten ,
Kolloquium des Inst. f. Technische Biochemie der Universität Stuttgart.
.
hdl:10013/epic.17869
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Conference
-Invited talk
Helmke, E. and Weyland, H.
(1993)
Some aspects of deep-sea microbiology with emphasis on the environment of the Southern Ocean ,
Proceedings International Marine Biotechnology Conference (W. Fenical, M. Greenberg, H. O. Halvorson, F. C. Hunter-Cevera, eds. ) Brown Publishers, Dubuque, IA,pp.
.
hdl:10013/epic.11858
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Miscellaneous
Gerdes, B. , Reuter, K. , Jürgens, J. and Helmke, E.
(2008)
Bioremediationsverfahren zum beschleunigten biologischen Abbau von Petroleum-Kohlenwasserstoffen in den polaren meereisbedckten Regionen und Bakterien- und Enzymgemische als Mittel zur Verfahrensdurchführung DE 10 2007 003 644 A1 2008.07.24 ,
[Miscellaneous]
hdl:10013/epic.39570
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"Berichte zur Polar- und Meeresforschung"
Expedition reports
Smetacek, V. , Bathmann, U. and Helmke, E.
(2005)
The expeditions ANTARKTIS XXI/3-4-5 of the research vessel "Polarstern" in 2004 = Die Expeditionen ANTARKTIS XXI/3-4-5 des Forschungsschiffes "Polarstern" 2004 / ,
Berichte zur Polar- und Meeresforschung (Reports on Polar and Marine Research),
Bremerhaven,
Alfred Wegener Institute for Polar and Marine Research,
500
,
302 p.
.
doi:https://doi.org/10.2312/BzPM_0500_2005
, hdl:10013/epic.10505
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Weekly Reports
Helmke, E.
(2004)
Weekly report for R.V. Polarstern expedition ANT-XXI/5, report no. 1 (08.05.2004), german version ,
Alfred-Wegener-Institute for Polar- and Marine Research, Bremerhaven,
Bremerhaven,
Alfred Wegener Institute for Polar and Marine Research
.
hdl:10013/epic.27183
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Weekly Reports
Helmke, E.
(2004)
Weekly report for R.V. Polarstern expedition ANT-XXI/5, report no. 2 (16.05.2004), german version ,
Alfred-Wegener-Institute for Polar- and Marine Research, Bremerhaven,
Bremerhaven,
Alfred Wegener Institute for Polar and Marine Research
.
hdl:10013/epic.27184
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Weekly Reports
Helmke, E.
(2004)
Weekly report for R.V. Polarstern expedition ANT-XXI/5, report no. 3 (24.05.2004), german version ,
Alfred-Wegener-Institute for Polar- and Marine Research, Bremerhaven,
Bremerhaven,
Alfred Wegener Institute for Polar and Marine Research
.
hdl:10013/epic.27185
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Weekly Reports
Helmke, E.
(2004)
Weekly reports for R.V. Polarstern expedition ANT-XXI/5 (2004-05-08 - 2004-06-02, Cape Town - Bremerhaven), German version ,
Alfred-Wegener-Institute for Polar- and Marine Research, Bremerhaven,
Bremerhaven,
Alfred Wegener Institute for Polar and Marine Research
.
hdl:10013/epic.44525
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