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Role of silicon in diatom metabolism. A silicon requirement for deoxyribonucleic acid synthesis in the diatom Cylindrotheca fusiformis Reimann and Lewin.
TLDR
Silicon deprivation of young cells of C. fusiformis in light-dark synchronized cultures completely inhibited mitosis without affecting normal increase in volume and reintroduction of silicic acid to 12 h silicon-starved cells resulted in immediate stimulation of net DNA synthesis.
Bacillus marismortui sp. nov., a new moderately halophilic species from the Dead Sea.
TLDR
The isolates isolated from enrichments prepared from Dead Sea water samples collected 57 years ago should be regarded as members of a new species of the genus Bacillus, for which the name Bacillus marismortui sp.
Lipid components of diatoms.
Abstract 1. 1. The total lipids of five species of marine diatoms and one fresh-water diatom were studied chromatographically and the major components identified. All species contained glycerides,
Silicon and Siliceous Structures in Biological Systems
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THE POLYMORPHIC DIATOM PHAEODACTYLUM TRICORNUTUM: ULTRASTRUCTURE OF ITS MORPHOTYPES 1, 2
TLDR
The ultrastructure of the oval, fusiform and triradiate morphotypes of Phaeodactylum tricornutum Bohlin is described and the relation to other diatoms is discussed.
Phylogenetic analyses of some extremely halophilic archaea isolated from Dead Sea water, determined on the basis of their 16S rRNA sequences
TLDR
Phylogenetic analysis using approximately 1,400 base comparisons of 16S rRNA-encoding gene sequences demonstrated that the five isolates clustered closely to species belonging to three different genera--Haloferax, Halobacterium, and Haloarcula.
Characterization of a silicon transporter gene family in Cylindrotheca fusiformis: sequences, expression analysis, and identification of homologs in other diatoms
TLDR
The isolation and sequence determination of five silicon transporter (SIT) genes from Cylindrotheca fusiformis are reported, and it is proposed that the cell regulates uptake by controlling the amount or location of each.
Studies on the biochemistry and fine structure of silicia shell formation in diatoms VII. Sequential cell wall development in the pennateNavicula pelliculosa
TLDR
The development of the wall of synchronized culture of N. pelliculosa is described, and the wall appears to be released by a joining of the inner silicalemma and the plasmalemma.
Reclassification of Bacillus marismortui as Salibacillus marismortui comb. nov.
TLDR
Recently, the features of a group of strains isolated from Dead Sea enrichments obtained in 1936 by one of us were described and the new genus Salibacillus was proposed for the halophilic species Bacillus salexigens, but DNA-DNA hybridization experiments showed that they constitute two separate species.
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