The world's first wiki where authorship really matters (Nature Genetics, 2008). Due credit and reputation for authors. Imagine a global collaborative knowledge base for original thoughts. Search thousands of articles and collaborate with scientists around the globe.

wikigene or wiki gene protein drug chemical gene disease author authorship tracking collaborative publishing evolutionary knowledge reputation system wiki2.0 global collaboration genes proteins drugs chemicals diseases compound
Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 

Isolation and characterization of mutants from levan-producing Zymomonas mobilis.

Levan is a fructose polymer with potential importance as a fructose source and as a thickening agent in food technology. By N-methyl N'-nitro N-nitroso guanidine (NTG) mutagenesis and selection, two mutants, ZML1 and ZML2, of Zymomonas mobilis B4286 overproducing levan (21.6 and 20.0 g/l at 24 h) were isolated. Despite showing similar rates of sucrose hydrolysis (2.38 g/l/h) in fermentation, these mutants exhibited higher rates of levan production (1.72 and 1.68 g/l/h, respectively) than their parent strain (0.69 g/l/h). In contrast, these mutants showed lower rates of ethanol production (1.06 and 1.55 g/l/h respectively) than the parent strain (3.75 g/l/h). The maximum levansucrase activity in the mutants was higher (30.6 and 36 U/mg, respectively, at 24 h) than in their parent strain (12.6 U/mg). Therefore, the increased rates of levan production by the mutants are attributed to their higher levansucrase activity.[1]

References

  1. Isolation and characterization of mutants from levan-producing Zymomonas mobilis. Ananthalakshmy, V.K., Gunasekaran, P. J. Biosci. Bioeng. (1999) [Pubmed]
 
WikiGenes - Universities