The fatty acid compositions of predator Piocoris luridus (Heteroptera: Lygaeidae) and its host Monosteria unicostata (Heteroptera: Tingidae) reared on almond

Abstract

Fatty acid analysis of P. luridus and its host 461Abstract The changes in fatty acid compositions during nutritional interaction among almond Amygdalus communis Linnaeus (Rosales: Rosaceae) (host plant), lacebug Monosteria unicostata (Mulsant and Rey) (Heteroptera: Tingidae) and its predator Piocoris luridus Fieber (Heteroptera: Lygaeidae) were determined by gas chromatography and gas chromatography-mass spectrometry analyses. The fatty acid profiles of phospholipids and triacylglycerols were substantially different. Unlike the general observations for virtually most terrestrial insects, arachidonic and eicosapentaenoic acids were detected in high proportions of phospholipid fractions in both insects, especially in P. luridus. Also the almond tissues provide very little oleic acid to the herbivore diet, yet both insect species developed high proportions of this component. Our data reveals instances of specific accumulation of fatty acid biosynthesis, elongation/desaturation, and not incorporating selected fatty acids into cellular lipids.

Waterbugs (Heteroptera: Nepomorpha and Gerromorpha) as sources of essential n‐3 polyunsaturated fatty acids in Central Siberian ecoregions

“…Despite the general observations that long‐chain PUFAs are absent in terrestrial insects (Stanley‐Samuelson et al ., ; Rumpold & Schluter, ; Sanchez‐Muros, Barroso & Manzano‐Agugliaro, ), EPA has been reported to constitute significant proportions of total phospholipids in some terrestrial Heteroptera such as Monosteria unicostata (Tingidae) and its predator Piocoris luridus (Lygaeidae) as well as the pentatomid Eysarcoris inconspicuus (Cakmak, Bashan & Bolu, ; Cakmak, ). We studied the total lipid fraction, which contains less PUFA than the phospholipid fraction, but the proportions of EPA in waterbugs that we studied were higher than or at least similar to those in the phospholipids of the terrestrial Heteroptera.…”

Comparison of fatty acid contents and composition in major lipid classes of larvae and adults of mosquitoes (Diptera: Culicidae) from a steppe region

“…Later, numerous studies have confirmed that aquatic insects, including mosquitoes, accumulate high levels of C20 PUFA, in contrast to terrestrial species (Dadd et al, 1987;Howard & Stanley-Samuelson, 1996;Yang et al, 2006;Makhutova et al, 2011). However, some carnivorous terrestrial insects also may accumulate high proportions of C20 PUFAs (Cakmak et al, 2007).…”

The Influence of Life-cycle on Phospholipid and Triacylglycerol Fatty Acid Profiles of Aelia rostrata Boheman (Heteroptera: Pentatomidae)

“…The data presented here indicate that the quantitatively major FA associated with PLs and TGs prepared from A. rostrata include C16:0, C18:0, C18:1, C18:2n-6, and C18:3n-3, as described for many other Heteroptera and most other insect orders (Fast, 1970;Cakmak et al, 2005Cakmak et al, , 2007. Although these components are common to most insects, the FA composition of PL and TG from various heteropteran species are considerably variable.…”

“…The dipteran pattern of high C16:1 was also seen in four heteropterans; Blissus leucopterus leucopterus (Say) (Hemiptera: Lygaeidae), Blissus iowensis Andre (Spike et al, 1991), Eurygaster maura (Linnaeus) (Heteroptera: Scutelleridae) (Kilincer et al, 1987), and Eurygaster integriceps Puton (Bashan et al, 2002). However, proportion of C16:1 are low in most Heteroptera (Thompson, 1973;Bashan and Cakmak, 2005;Cakmak et al, 2005;Cakmak et al, 2007). Presumably, these patterns are somehow adaptive, although the manner in which this occurs is unknown.…”