Results 31 to 40 of about 840,514 (343)
Bacteria in amber coal and clay in relation to lithopanspermia [PDF]
A Study was undertaken to determine if amber, coal and clay samples contain bacteria. ill relation to the possibility that rocks ejected from Earth might contain microorganisms capable of colonizing other planets.
Amar Laswd +12 more
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Comparative analysis of Bacillus weihenstephanensis KBAB4 spores obtained at different temperatures [PDF]
The impact of Bacillus weihenstephanensis KBAB4 sporulation temperature history was assessed on spore heat resistance, germination and outgrowth capacity at a temperature range from 7 to 30 °C. Sporulation rate and efficiency decreased at low temperature,
Abee, T., Garcia, D., Voort, M., van der
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Diversity of culturable moderately halophilic and halotolerant bacteria in a marsh and two salterns a protected ecosystem of Lower Loukkos (Morocco) [PDF]
To study the biodiversity of halophilic bacteria in a protected wetland located in Loukkos (Northwest, Morocco), a total of 124 strains were recovered from sediment samples from a marsh and salterns.
Amar, Mohamed +7 more
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A role for microbial selection in frescoes' deterioration in Tomba degli Scudi in Tarquinia, Italy [PDF]
Mural paintings in the hypogeal environment of the Tomba degli Scudi in Tarquinia, Italy, show a quite dramatic condition: the plaster mortar lost his cohesion and a white layer coating is spread over almost all the wall surfaces.
Arrighi, Chiara +9 more
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The Nutrition of Bacillus megaterium and Bacillus cereus [PDF]
Summary: Out of nine strains of Bacillus megaterium from culture collections, only five grew in a minimal medium that contained glucose and ammonium sulphate as principal nutrients. One strain required biotin, while three other strains required two or more amino acids for growth. A freshly isolated strain of B. megaterium required three amino acids for
openaire +2 more sources
The trans-activation domain of the sporulation response regulator Spo0A revealed by X-ray crystallography [PDF]
Sporulation in Bacillus involves the induction of scores of genes in a temporally and spatially co-ordinated programme of cell development. Its initiation is under the control of an expanded two-component signal transduction system termed a phosphorelay.
Baldus J.M. +32 more
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Many bacteria are potential to reduce the metal ions to elemental nanoparticles and are able to grow in the presence of these inorganic compounds. Whole bacterial cells suspended in aqueous media can also convert some soluble metal ions into elemental ...
Mojtaba Shakibaie +5 more
doaj +1 more source
Microorganisms make use of heavy metals through enzymatic, non-enzymatic processes or bioaccumulation in bacterial cells in insoluble or particulate forms and by-products.
Gireshsingh Mungla +2 more
doaj +1 more source
The Bacillus cereus GerN and GerT protein homologs have distinct roles in spore germination and outgrowth, respectively [PDF]
The GerT protein of Bacillus cereus shares 74% amino acid identity with its homolog GerN. The latter is a Na+/H+-K+ 19 antiporter that is required for normal spore germination in inosine.
Moir, A., Senior, A.
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