Effect of oxygen levels on the fatty acids and lipids of Mucor rouxii. Academic Article

abstract

• The effect of aerobic and oxygen limiting (anaerobic) growth conditions upon the fatty acid and lipid composition of Mucor rouxii has been examined. The aerobic cells contained a range of fatty acids typical of phycomycetes, i.e. -linolenic acid, with an unsaturation index of 1.20, whereas the anerobic cells contained relatively high levels of shorter chained fatty acids and very low concentrations of unsaturated acids (unsaturation index=0.025). The unsaturated compounds were monoolefinic tetra-, hexa-, and octadecenoic acids; and closer examination of their di-trimethylsilyl derivatives by gas chromatography and mass spectrometry showed that all three acids contained the double bond in the 9 position. These results were consistent with a microaerobic biosynthetic pathway. In addition, there were major quantitative differences in the lipid composition of the two types of cells; and it was evident that the differences in growth environment markedly affected the cellular lipid and fatty acid compositions. 1974 American Oil Chemists' Society.

authors

• Safe, Stephen

published proceedings

• Lipids

author list (cited authors)

• Safe, S., & Duncan, J.

citation count

• 5

complete list of authors

• Safe, S||Duncan, J

publication date

• April 1974

publisher

• Wiley  Publisher

keywords

• Aerobiosis
• Anaerobiosis
• Chromatography, Gas
• Fatty Acids
• Fatty Acids, Nonesterified
• Fatty Acids, Unsaturated
• Glycerides
• Lipid Metabolism
• Mass Spectrometry
• Models, Chemical
• Mucor
• Oxygen Consumption
• Spores, Fungal
• Sterols
• Time Factors
• Triglycerides

Digital Object Identifier (DOI)

• 10.1007/BF02532207

start page

• 285

end page

• 289

volume

• 9

issue

• 4

URL

• http://dx.doi.org/10.1007/bf02532207