Insect Lipids: A Review

Fast, Paul G.

doi:10.4039/entm9637fv

Cited by 151 publications

(51 citation statements)

References 140 publications

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“…Chinch bug PL and TG fatty acid profiles are characterized by high proportions of 16:1 and very low proportions of C18 and C20 PUFAs; as such, these patterns differ from fatty acid compositions known from all other Heteroptera so studied, and are similar only to the patterns known from most species of Diptera (Fast, 1970;Thompson, 1973).…”

Section: Discussionmentioning

confidence: 83%

“…Within the Hemiptera, Homoptera have fatty acid profiles that are considerably different from the majority of insect species (Fast, 1970;Thompson, 1973). Most species in Aphidiodea feature very high proportions of 12:0 and 14:0, and relatively small proportions of 18:2n-6.…”

Section: Discussionmentioning

confidence: 99%

“…For example, with the exception of two cecidomyiids, lipids from all dipterans so studied characteristically have high proportions of 16:1 (very often >20% of total fatty acids, compared with 0-2% in most insects) (Fast, 1970;Thompson, 1973). Several other distinct patterns have been described for other insect taxa (Fast, 1970;Thompson, 1973;Stanley-Samuelson et al, 1988). These special patterns result from the biochemical processes mentioned above, yet they appear to be fixed features within certain taxonomic groups.…”

Section: Introductionmentioning

confidence: 96%

“…Whereas these processes enable tremendous short-term changes in fatty acid composition, the bulk of insect fatty acid analyses indicate that most organismal-level profiles are fairly similar (Fast, 1970;Thompson, 1973). Within this broad similarity, certain groups of insects stand out from the general pattern.…”

Section: Introductionmentioning

confidence: 99%

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The fatty acid compositions of phospholipids and triacylglycerols from two chinch bug species Blissus leucopterus leucopterus and B. iowensis (Insecta: Hemiptera; Lygaeidae) are similar to the characteristic dipteran pattern

Spike

Wright

Danielson

et al. 1991

Comparative Biochemistry and Physiology Part B: Comparative Bio

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Section: Discussionmentioning

confidence: 83%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The fatty acid compositions of phospholipids and triacylglycerols from two chinch bug species Blissus leucopterus leucopterus and B. iowensis (Insecta: Hemiptera; Lygaeidae) are similar to the characteristic dipteran pattern

Spike

Wright

Danielson

et al. 1991

Comparative Biochemistry and Physiology Part B: Comparative Bio

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“…In contrast, most insect species contain less than 10% of wet weight as lipid (Fast, 1966(Fast, , 1970 and Fig. 3.…”

Section: Discussionmentioning

confidence: 99%

Characterization of triacylglycerols from overwintering prepupae of the alfalfa pollinator Megachile rotundata (Hymenoptera: Megachilidae)

Buckner¹,

Kemp²,

Bosch³

2004

Arch Insect Biochem Physiol

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Alfalfa leafcutting bees, Megachile rotundata (F.), overwinter as prepupae. The internal lipids were extracted from prepupae that had been wintered at 4°C for 7 months. Megachile rotundata prepupae possessed copious quantities of internal lipids (20% of the fresh weight) that were extracted with CHCl 3 /methanol (2:1). Transmission electron microscopy revealed that lipids were stored within very large intracellular vacuoles. Separation by silica chromatography revealed that 88% of the internal lipids were triacylglycerols. Ester derivatives of fatty acids from triacylglycerol components were analyzed by gas chromatography-mass spectrometry and 15 fatty acid constituents were identified. The majority (76%) of the triacylglycerol fatty acids were unsaturated fatty acids. The major triacylglycerol fatty acid constituent (30%) was the C 16 monounsaturated fatty acid, palmitoleic acid (16:1, hexadec-9-enoic acid), with substantial amounts of linolenic acid (18:3, octadec-9,12,15-trienoic acid, 15%), palmitic acid (16:0, hexadecanoic acid, 14%) and oleic acid (18:1, octadec-9-enoic acid, 13%). Palmitoleic acid as the major fatty acid of an insect is an unusual occurrence as well as the presence of the 16-carbon polyunsaturated fatty acids, 16:2 and 16:3. The major intact triacylglycerol components were separated and identified by high performance liquid chromatography-mass spectrometry. A complex mixture of approximately 40 triacylglycerol components were identified and major components included palmitoyl palmitoleoyl oleoyl glycerol, palmitoyl palmitoleoyl palmitoleoyl glycerol, myristoyl palmitoleoyl palmitoleoyl glycerol, myristoleoyl palmitoyl palmitoleoyl glycerol, and palmitoyl palmitoleoyl linolenoyl glycerol. Mention of trade names or commercial products in this article is solely for the purpose of providing specific information and does not imply recommendation or endorsement by the U.S. Department of Agriculture. U.S. Department of Agriculture, Agricultural Research Service, Northern Plains Area, is an equal opportunity/ affirmative action employer and all agency services are available without discrimination.Abbreviations used: BSA = N,O-bis-(trimethylsilyl) acetamide; FAME = fatty acid methyl ester; L = linoleic acid; La = lauric acid; Ln = linolenic acid; M = myristic acid; Mo = myristoleic acid; O = oleic acid; P = palmitic acid; Po = palmitoleic acid; P L = palmitlinoleic acid; P Ln = palmitlinolenic acid; S = stearic acid; TAG = triacylglycerol; t-BME = tert-butylmethylether; TMS = trimethylsilyl.

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Content and composition of phosphoglycerols and neutral lipids at different developmental stages of the eggs of the codling moth, Cydia pomonella (Lepidoptera: Tortricidae)

Forte

Ferrero

Alonso

2002

Arch Insect Biochem Physiol

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Phosphoglycerol, triacylglycerol, diacylglycerol, and free fatty acid content was studied in eggs of the codling moth Cydia pomonella at the white, red ring, and black head developmental stages. The composition of total phosphoglycerols and of the three classes of neutral lipids was also analyzed. The highest total lipid content was found in eggs at the white stage, the amount decreasing during development mainly as a result of a diminution in the quantity of phosphoglycerols, which account for approximately 50% of total content at all stages of egg development. The amount of triacylglycerols and free fatty acids changes significantly during development, whereas only minor changes were found in diacyglycerol levels. The total phosphoglycerol acyl composition of eggs at the white and red ring stages is similar, whereas differences are evident at the black head stage of development. Triacylglycerols and free fatty acids are enriched in saturated fatty acids in all analyzed stages. The acyl profile of diacylglycerols is different at each stage. The unsaturation index decreases in diacylglycerols and free fatty acids as a function of egg development. The results of the present paper suggest that triacylglycerols may constitute an important source of energy during the final period of egg development while phosphoglycerols may function as fuel during the beginning. Phosphoglycerols could be precursors for the triacylglycerol biosynthesis that takes place between white and red ring stages.

show abstract

Insect Lipids: A Review

Cited by 151 publications

References 140 publications

The fatty acid compositions of phospholipids and triacylglycerols from two chinch bug species Blissus leucopterus leucopterus and B. iowensis (Insecta: Hemiptera; Lygaeidae) are similar to the characteristic dipteran pattern

The fatty acid compositions of phospholipids and triacylglycerols from two chinch bug species Blissus leucopterus leucopterus and B. iowensis (Insecta: Hemiptera; Lygaeidae) are similar to the characteristic dipteran pattern

Characterization of triacylglycerols from overwintering prepupae of the alfalfa pollinator Megachile rotundata (Hymenoptera: Megachilidae)

Content and composition of phosphoglycerols and neutral lipids at different developmental stages of the eggs of the codling moth, Cydia pomonella (Lepidoptera: Tortricidae)

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