Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Manfred Klisch"'
Publikováno v:
Marine Drugs, Vol 8, Iss 1, Pp 106-121 (2010)
Mycosporine-like amino acids (MAAs) and scytonemin are UV-screening compounds that have presumably appeared early in the history of life and are widespread in cyanobacteria. Natural colonies of the UV-insensitive Nostoc flagelliforme were found to be
Externí odkaz:
https://doaj.org/article/f30112c8b3cf43229c741db9198b9c22
Autor:
Donat P. Häder, Manfred Klisch
Publikováno v:
Marine Drugs, Vol 6, Iss 2, Pp 147-163 (2008)
Marine microorganisms harbor a multitude of secondary metabolites. Among these are toxins of different chemical classes as well as the UV-protective mycosporinelike amino acids (MAAs). The latter form a group of water-soluble, low molecular-weight (g
Externí odkaz:
https://doaj.org/article/dd4825b923a340c98cb810bf14b506f7
Publikováno v:
Photochemistry and Photobiology. 86:862-870
In the present investigation we show for the first time that bioconversion of a primary mycosporine-like amino acid (MAA) into a secondary MAA is regulated by sulfur deficiency in the cyanobacterium Anabaena variabilis PCC 7937. This cyanobacterium s
Publikováno v:
Genomics. 95(2):120-128
Mycosporine-like amino acids (MAAs) are a family of more than 20 compounds having absorption maxima between 310 and 362 nm. These compounds are well known for their UV-absorbing/screening role in various organisms and seem to have evolutionary signif
Publikováno v:
Photochemistry and Photobiology. 84:1500-1505
In the present investigation we show that the cyanobacterium Anabaena variabilis PCC 7937 produces a single mycosporine-like amino acid (MAA), shinorine (retention time = 2.3 min and absorption maximum at 334 nm) when isolated and purified by HPLC. A
Publikováno v:
World Journal of Microbiology and Biotechnology. 24:3111-3115
The induction of shinorine (mycosporine-like amino acid (MAA)) in Anabaena variabilis PCC 7937 was studied in various culture media (BGA−, BGA+, BG11 and Allen and Arnon’s). The objective was to select the most appropriate medium that can support
Autor:
Manfred Klisch, Donat-P. Häder
Publikováno v:
Marine Drugs
Marine Drugs, Vol 6, Iss 2, Pp 147-163 (2008)
Marine Drugs, Vol 6, Iss 2, Pp 147-163 (2008)
Marine microorganisms harbor a multitude of secondary metabolites. Among these are toxins of different chemical classes as well as the UV-protective mycosporine-like amino acids (MAAs). The latter form a group of water-soluble, low molecular-weight (
Publikováno v:
Helvetica Chimica Acta. 90:488-511
The mycosporine-like amino acid (MAA) porphyra-334 (1) is subjected to extensive 1H- and 13C-NMR analysis as well as to density-functional-theory (DFT) calculations. All 1H- and 13C-NMR signals of 1 are assigned, as well as the resonances of prochira
UV-B-induced synthesis of mycosporine-like amino acids in three strains of Nodularia (cyanobacteria)
Publikováno v:
Journal of Photochemistry and Photobiology B: Biology. 71:51-58
Three filamentous and heterocystous cyanobacterial strains of Nodularia, Nodularia baltica, Nodularia harveyana and Nodularia spumigena, have been tested for the presence and induction of ultraviolet-absorbing/screening mycosporine-like amino acids (
Autor:
Donat-P. Häder, Manfred Klisch
Publikováno v:
Journal of Photochemistry and Photobiology B: Biology. 66:60-66
The synthesis or accumulation of mycosporine-like amino acids (MAAs) is an important UV tolerance mechanism in aquatic organisms. To investigate the wavelength dependence of MAA synthesis in the marine dinoflagellate Gyrodinium dorsum, the organism w