Sökning: "Carbon starvation"

Visar resultat 11 - 15 av 25 avhandlingar innehållade orden Carbon starvation.

  1. 11. Malic acid production by Aspergillus oryzae

    Författare :Christoph Knuf; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; C4 dicarboxylic acids; Aspergillus oryzae; systems biology; fermentation; malic acid; metabolic engineering;

    Sammanfattning : Malic acid is a C4 dicarboxylic acid which is used as an acidulant in food and beverages. It isalso considered as a bio-building block to replace petrochemically derived compounds in thepost oil era. This organic acid can be biotechnologically derived from fermentation usingrenewable feedstocks as carbon source. LÄS MER

  2. 12. General stress proteins: Novel function and signals for induction of stationary phase genes in E.coli

    Författare :Örjan Persson; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; general stress response; universal stress protein; sigma S; DNA damage; fructose-6-phosphate; ruvC;

    Sammanfattning : Survival during conditions when nutrients become scarce requires adaptation and expression of genes for maintenance in order for the cell to survive. Among the numerous proteins involved in adaptation and regulation under these conditions, the stationary phase sigma factor, σS, and the Universal stress proteins contribute to survival and bestow the cell with general stress protective functions during growth arrest. LÄS MER

  3. 13. Thermal plasticity and limitations in tropical trees

    Författare :Maria Wittemann; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; acclimation; African tropical forest; chlorophyll fluorescence; climate change; drought; hydraulic; montane; photosynthesis; respiration; successional strategies; temperature; tropical trees; warming;

    Sammanfattning : Tropical forests are the most carbon dense and biodiverse terrestrial biome on earth. In a time of global warming and biodiversity crisis, their preservation must be of high priority. At the same time, they likely operate close to their thermal limits because of a historically and seasonally stable environment. LÄS MER

  4. 14. Characterisation of two novel oleaginous yeast strains for efficient and sustainable production of acetyl-CoA derived products

    Författare :Friederike Mierke; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Yeasts are major players in industry for production of valuable compounds. The market for yeast bioproduction is constantly growing, and sustainable bioproduction from renewable feedstocks is becoming increasingly important. LÄS MER

  5. 15. Regulatory roles of sRNAs in pathogenesis of Vibrio cholerae

    Författare :Dharmesh Sabharwal; Sun Nyunt Wai; Bernt Eric Uhlin; Jörgen Johansson; Cynthia Sharma; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Vibrio cholerae; sRNA; Biofilm; OmpT; RbmC; Vrp; VafA; mikrobiologi; Microbiology;

    Sammanfattning : The Gram-negative pathogen Vibrio cholerae uses variety of regulatory molecules to modulate expression of virulence factors. One important regulatory element of microorganisms is small non-coding RNAs (sRNAs), which control various cell functions such as expression of cell membrane proteins, mRNA decay and riboswitches. LÄS MER