Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Peter Gurevich"'
Autor:
Peter Gurevich, Aharon Oren
Publikováno v:
Hydrobiologia. 315:149-158
After a period of more than ten years in which bacterial and algal community sizes were extremely small, a dense bloom of halophilic archaea developed in the upper 5–10 m of the Dead Sea water column in the summer of 1992. The development of this b
Autor:
Peter Gurevich, Aharon Oren
Publikováno v:
FEMS Microbiology Letters. 130:91-95
Eight species of halophilic Archaea were tested for the presence of isocitrate lyase activity. High activities (up to 100 nmol min−1 mg protein−1) were detected in Haloferax mediterranei and Haloferax volcanii when grown in medium containing acet
Publikováno v:
Canadian Journal of Microbiology. 41:548-553
A halotolerant Gram-negative eubacterium was isolated from soil collected at a storage site for formaldehyde near a chemical plant that uses formaldehyde in the production of glue. The strain, designated MA-C and identified as Halomonas sp. (DSM 7328
Publikováno v:
Hydrobiologia. 297:173-185
A bloom of the unicellular green alga Dunaliella parva (up to 15 000 cells m1−1) developed in the upper 5 m of the water column of the Dead Sea in May-June 1992. This was the first mass development of Dunaliella observed in the lake since 1980, whe
Autor:
Aharon Oren, Peter Gurevich
Publikováno v:
FEMS Microbiology Letters. 125:83-87
Eight species of halophilic Archaea were tested for the presence of the enzymes of the methylglyoxal bypass. Methylglyoxal synthase was found in extracts of all species tested, with the exception of Halobacterium salinarium and Halobacterium cutirubr
Autor:
Aharon Oren, Peter Gurevich
Publikováno v:
FEMS Microbiology Ecology. 14:147-155
When glycerol is added to cultures of halophilic archaea, especially representatives of the genera Haloferax and Haloarcula, massive amounts of acids are formed. HPLC and enzymatic analyses of supernatants of Haloferax cultures grown in the presence
Autor:
Aharon Oren, Peter Gurevich
Publikováno v:
FEMS Microbiology Letters. 118:311-315
A constitutive NAD+-dependent glycerol dehydrogenase activity was detected in Halobacterium salinarium and Halobacterium cutirubrum. Optimal activity was found at 3 M KCl and pH 8–10. No glycerol dehydrogenase activity could be demonstrated in repr
Autor:
Aharon Oren, Peter Gurevich
Publikováno v:
FEMS Microbiology Ecology. 12:249-256
A mass bloom of halophilic archaea developed in the Dead Sea in the summer of 1992, with peak densities of more than 3 × 107 cells/ml, imparting a red coloration to the water. Microscopical examination showed a numerical dominance of pleomorphic, fl
Autor:
Aharon Oren, Peter Gurevich
Publikováno v:
FEMS Microbiology Letters. 108:287-290
Cell-free enzyme preparations of the obligately anaerobic halophilic eubacterium Haloanaerobium praevalens synthesize fatty acids from malonyl-CoA. The reaction is stimulated by NaCl and KCl at a concentration of 1 M, and only slightly inhibited by s
Publikováno v:
Water Science and Technology. 27:89-96
The moderately halophilic anaerobic eubacteria Haloanaerobiumpraevalens and Sporohalobactermarismortui are able to reduce p-nitrophenol and a variety of other nitrosubstituted aromatic compounds at a high rate to the corresponding amines. p-Nitrophen