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Table 1 Fatty acid composition of P. tricornutum following N deprivation

From: Molecular and cellular mechanisms of neutral lipid accumulation in diatom following nitrogen deprivation

Fatty acids Control -N
Total FA% DW% Total FA% DW%
C14:0 (myristic) 5.31 0.22 6.27 0.12
C16:0 (palmitic) 15.89 0.66 25.87 0.49
C18:0 (stearic) 2.67 0.11 2.37 0.04
Sum SFA 23.87 0.99 34.51 0.65
C16:1 (palmitoleic) 23.91 0.99 42.55 0.80
C18:1 (oleic) 2.45 0.10 NT ND
Sum MUFA 26.36 1.09 42.55 0.80
C18:2 (linoleic) NT NT 5.22 0.10
C18:3 (linolenic) 2.69 0.11 1.25 0.02
C20:5 (eicosapentaenoic) 20.33 0.84 11.67 0.22
C22:6 (docosahexaenoic) 1.07 0.04 0.64 0.01
Sum PUFA 24.09 1.00 18.78 0.35
other FA 10.88 0.45 2.71 0.05
Total FA identified 85.20 3.53 98.55 1.85
Unsaturation ratios:     
C 16 unsat./C16:0 1.50 0.06 1.64 0.03
C18 unsat./C18.0 1.93 0.08 2.73 0.05
Total unsat./total sat. 2.11 0.09 1.78 0.03
Lipid content (DW)   24.13   53.33
  1. Abbreviations: FA, Fatty acid; DW, Dry weight; SFA, Saturated fatty acid; MUFA, Monounsaturated fatty acid; PUFA, Polyunsaturated fatty acid; ND, not detected.