. 2014 Dec 8;167(1):118–136. doi: 10.1104/pp.114.252395

Table I. Identification of glycerolipids from P. tricornutum.

Characteristic fragments generated by fragmentation of the parent ion (MS2) are shown, together with the associated references.

Analyzed Lipids	Polarity	Ion Analyzed	Specific Fragments in MS2 Scan	References
Phospholipids
PC	+	[M + H]⁺	Neutral loss of m/z 59	Domingues et al. (1998)
PE	+	[M + H]⁺	Neutral loss of 141	Brügger et al. (1997)
Phosphatidylserine	+	[M + H]⁺	Neutral loss of 185	Brügger et al. (1997)
PG	+	[M + NH₄]⁺	Neutral loss of 189	Taguchi et al. (2005)
PI	+	[M – H]^–	Precursors of m/z 241	Hsu and Turk (2000b)
Phosphatidic acid	+	[M + NH₄]⁺	Neutral loss of 115	Li-Beisson et al. (2010)
Nonphosphorus glycerolipids
SQDG	–	[M – H]^–	Precursors of m/z 225	Gage et al. (1992); Welti et al. (2003)
ASQ	–	[M – H]^–	Precursors of m/z 509	Naumann et al. (2011)
MGDG	+	[M + NH₄]⁺	Neutral loss of 179	Li-Beisson et al. (2010)
DGDG	+	[M + NH₄]⁺	Neutral loss of 341	Moreau et al. (2008)
DGTA	+	[M + H]⁺	Precursors of m/z 236; neutral loss of 59; no neutral loss of 87 as found for DGTS	Armada et al. (2013)
Neutral glycerolipids
Free FA	–	[M – H]^–
DAG	+	[M + NH₄]⁺	Scan of [M+NH₄-RCOONH₄]⁺	Camera et al. (2010)
TAG	+	[M + NH₄]⁺	Scan of [M+NH₄-RCOONH₄]⁺	Hsu and Turk (2010)