Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Michael Speitling"'
Publikováno v:
Journal of Agricultural and Food Chemistry
Glycosylation in natural product metabolism and xenobiotic detoxification often leads to disaccharide-modified metabolites. The chemical synthesis of such glycosides typically separates the glycosylation steps in space and time. The option to perform
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bec606f56e6a2079828cb90f8a16e9fe
http://europepmc.org/articles/PMC8662728
http://europepmc.org/articles/PMC8662728
Publikováno v:
Chemosphere. 330:138687
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::12ffb592793eb3f73a090af904d7639e
https://doi.org/10.1016/j.chemosphere.2023.138687
https://doi.org/10.1016/j.chemosphere.2023.138687
Publikováno v:
Journal of Agricultural and Food Chemistry
Cinmethylin is a well-known benzyl-ether derivative of the natural terpene 1,4-cineole that is used industrially as a pre-emergence herbicide in grass weed control for crop protection. Cinmethylin detoxification in plants has not been reported, but i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e6df93d2bce5edf81bd530fcae57aab4
http://europepmc.org/articles/PMC8278484
http://europepmc.org/articles/PMC8278484
Publikováno v:
The Journal of Antibiotics. 60:36-42
The marine strain Pseudoalteromonas maricaloris KMM 636T was found to produce an inseparable mixture of two brominated yellow main pigments, bromoalterochromide A and A', in a ratio of 3: 1. Both pigments are Thr-Val-Asn-Asn-X pentapeptide lactones,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::31efad53b6f7fc82f2d60e88a9861b5a
https://doi.org/10.1038/ja.2007.5
https://doi.org/10.1038/ja.2007.5
Autor:
Ratnakar N. Asolkar, Iris Grün-Wollny, Hartmut Laatsch, Volker Hoffman, Werner F. Fleck, Rajendra P. Maskey, Michael Speitling
Publikováno v:
Zeitschrift für Naturforschung B. 58:686-691
In the course of our chemical screening of actinomycetes and other bacteria from terrestrial and marine sources, several extracts showed colourless middle polar bands with strong UV absorption at 254 nm and brown to grey colouration with anisaldehyde
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c5d18212642d4d007b5bd89e31edd409
https://doi.org/10.1515/znb-2003-0713
https://doi.org/10.1515/znb-2003-0713
Publikováno v:
Zeitschrift für Naturforschung B. 57:823-829
The marine Streptomycete isolates B5342 and B5525 forms, beside large amounts of the antitumor antibiotic chartreusin (1a), two chartreusin monoacetates as trace components. Whereas the chemical shift of the acetate methyl in 1c is in the normal rang
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3c2fd6330f371b830c8219006de1726
https://doi.org/10.1515/znb-2002-0716
https://doi.org/10.1515/znb-2002-0716
Publikováno v:
EPIC3Journal of Natural Products, 63, pp. 1570-1572
Chemical examination of two marine Streptomycetes has resulted in the isolation of four new butenolides, namely 4, 10-dihydroxy-10-methyl-dodec-2-en-1,4-olide (1), two diastereomeric 4,11-dihydroxy-10-methyl-dodec-2-en-1,4-olides (2/3), and 4-hydroxy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca4090571ece062e6f17cd13fefaa702
https://doi.org/10.1021/np0001676
https://doi.org/10.1021/np0001676
Autor:
Michael Speitling, Elisabeth Helmke, Armin Maier, Marinus Meiners, Heinz H Fiebig, Gerhard Kelter, H. Laatsch, Mohamed Shaaban, Khaled A. Shaaban, Usama W. Hawas
Publikováno v:
Journal of natural products. 72(12)
Chemical screening of the ethyl acetate extract from the marine-derived Streptomyces sp. isolate Mei37 resulted in five isoquinolinequinones, four new derivatives, mansouramycin A-D (1, 3-5), and the known 3-methyl-7-(methylamino)-5,8-isoquinolinedio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e87dfab340f4b4f08998edfb775e8018
https://pubmed.ncbi.nlm.nih.gov/19921834
https://pubmed.ncbi.nlm.nih.gov/19921834
Publikováno v:
ChemInform. 38
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4586b60835292ac4dd08c4310ab42732
https://doi.org/10.1002/chin.200729168
https://doi.org/10.1002/chin.200729168
Autor:
Elena P. Ivanova, L. S. Shevchenko, Pavel S. Dmitrenok, M. P. Sobolevskaya, Tatiana Kuznetsova, Hartmut Laatsch, G. B. Elyakov, Michael Speitling, O. F. Smetanina
Publikováno v:
Letters in applied microbiology. 40(4)
Aims: This study aims at evaluating the impact of the nutrient medium components on the in vitro production of the cytotoxic alterochromides. Methods and Results: The employment matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::acbc4b672f7854d9477a1bfcc31d49b4
https://pubmed.ncbi.nlm.nih.gov/15752212
https://pubmed.ncbi.nlm.nih.gov/15752212