Items where Author is "Laatsch, H."

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

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

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:10.1021/np900160g , hdl:10013/epic.33911

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:10.1038/ja.2009.71 , hdl:10013/epic.33910

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

Conference -Poster

Oberbeckmann, S. , Gerdts, G.

, Wichels, A.

, Laatsch, H. and Schumann, G. (2007)
Diversity of epiphytic marine bacteria associated with fronds of the brown algae Laminaria ,

Annual Conference of the Association for General and Applied Microbiology, 1-4 April, Osnabrück, Germany. .

hdl:10013/epic.26177

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

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

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

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

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

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:10.1002/anie.200352312 , hdl:10013/epic.20687

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:10.1002/ange.200352312 , hdl:10013/epic.20688

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

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:10.1023/B:CONC.0000039143.59854.6e , hdl:10013/epic.24508

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:10.1021/np030321z , hdl:10013/epic.20637

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

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

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

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

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

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

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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

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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