Journal Article10.1007/BF00409841
The divalent cation requirement of dead sea halobacteria
31
TL;DR: It is suggested that different mechanisms underlie the divalent cation requirement of the different functions of the Halobacterium strains isolated from the Dead Sea.
read more
Abstract: Pleomorphic Halobacterium strains isolated from the Dead Sea (H. volcanii, H. marismortui) require high concentrations of divalent cations (75 mM Mg2+) for growth. When suspended in medium containing less than 50 mM Mg2+ cells lose their native shape within minutes and become spherical. This occurs even at elevated sodium chloride concentrations. Concomitant with the morphological changes, a high mlecular weight component which is positive in Coomassie Brilliant Blue and in periodate Schiff stain is released into the surrounding medium. At divalent cation concentrations lower than 100 mM magnesium cells were shown to lose their viability and their ability to incorporate amino acids. The potency of different divalent cations or their combinations to enable growth and stabilize morphology and viability was studied. It is suggested that different mechanisms underlie the divalent cation requirement of the different functions.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Crystalline bacterial cell-surface layers.
Paul Messner,Uwe B. Sleytr +1 more
TL;DR: Thecrystalline arrays of proteinaceous subunits forming surface layers reveal a broad-application potential in biotechnology, vaccine development and molecular nanotechnology.
459
Crystalline bacterial cell surface layers
TL;DR: Thecrystalline arrays of proteinaceous subunits forming surface layers reveal a broad‐application potential in biotechnology, vaccine development and molecular nanotechnology.
382
On the halophytic nature of mangroves
Ken W. Krauss,Marilyn C. Ball +1 more
TL;DR: In this mini-review, additional insight is provided to support the pervasive notion that mangroves as a group are truly facultative halophytes, and thus add discourse to the alternate view thatMangroves have an obligate salinity requirement.
The microbial ecology of the dead sea
TL;DR: Accumulation of valuable products, such as glycerol and (in certain strains) β-carotene, in the halotolerant unicellular green alga Dunaliella has industrial potential.
103
References
•Journal Article
Protein Measurement with the Folin Phenol Reagent
TL;DR: Procedures are described for measuring protein in solution or after precipitation with acids or other agents, and for the determination of as little as 0.2 gamma of protein.
318.1K
Bergey's Manual of Determinative Bacteriology 8th edition, edited by R. E. Buchanan and N. E. Gibbons. xxvii + 1,246 pages, illustrated. The Williams and Wilkins Company, Baltimore, Maryland. 1974. No price
TL;DR: The 8th edition of Bergey's Manual is a thoroughgoing, extensive revision of this valuable work, each concerned with the description and characterization of a group of bacteria possessing one or more features in common and described by an appropriate vernacular rather than a latinized name.
2.4K
Halobacterium volcanii spec. nov., a Dead Sea halobacterium with a moderate salt requirement.
TL;DR: The organism grew well in media containing magnesium chloride in the concentrations found in the Dead Sea; Halobacterium volcanii is therefore remarkably well fitted for life in theDead Sea.
390
Related Papers (5)
[...]