Results 31 to 40 of about 840,514 (343)

Bacteria in amber coal and clay in relation to lithopanspermia [PDF]

open access: yes, 2009
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
core   +1 more source

Comparative analysis of Bacillus weihenstephanensis KBAB4 spores obtained at different temperatures [PDF]

open access: yes, 2010
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
core   +2 more sources

Diversity of culturable moderately halophilic and halotolerant bacteria in a marsh and two salterns a protected ecosystem of Lower Loukkos (Morocco) [PDF]

open access: yes, 2012
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
core   +1 more source

A role for microbial selection in frescoes' deterioration in Tomba degli Scudi in Tarquinia, Italy [PDF]

open access: yes, 2017
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
core   +1 more source

The Nutrition of Bacillus megaterium and Bacillus cereus [PDF]

open access: yesJournal of General Microbiology, 1972
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]

open access: yes, 2000
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
core   +1 more source

The Determination of Biomass/Selenium Ratio and the Impact of Glucose and Piperitone upon Selenium Ion Reduction Using Bacillus sp. MSh-1 Whole Cells

open access: yesNano Biomedicine and Engineering, 2017
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

Assessing the Potential of Mechanical Aeration Combined with Bioremediation Process in Soils and Coastal Sediments Impacted by Heavy Metals

open access: yesAIMS Environmental Science, 2022
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]

open access: yes, 2008
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.
core   +2 more sources

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