Seasonal Changes of Fatty Acid Compositions in Overwintering Larvae of Rice Stem Borer, Chilo suppressalis (Lepidoptera: Pyralidae)

Diapause induces remodeling of the fatty acid composition of membrane and storage lipids in overwintering larvae of Ostrinia nubilalis, Hubn. (Lepidoptera: Crambidae)

“…13 triacylglycerols increases during acquisition of cold tolerance is in accordance with other authors (Bennet et al, 1997;Ohtsu et al, 1993;Kostal and Simek, 1998;Atapour et al, 2007;Van Dooremalen and Ellers, 2010), and agrees with the suggestion that the theory of HVA should be extent to body lipids in general, even though it was formulated on the thermal response of membrane lipids (Sinesky, 1974). Our findings suggest that photoperiodical induction of diapause in O. nubilalis imposes FA remodelling, which in turn leads to the adaptation of membrane and storage lipids and occurs prior to the occurrence of environmental low temperatures.…”

“…The FA composition of triacylglycerols and phospholipids extracted from the whole bodies of non-diapausing and (Fast, 1970;Thompson 1973;Atapour et al, 2007;Khani et al, 2007). Generally, Lepidoptera exhibit typical animal FA profiles which are characterized mainly by low proportions of palmitoleic acid (16:1n-7) and high proportions of linoleic acid (18:2n-6) and/or α-linolenic acid (18:3n-3) (Fast, 1970).…”

“…12 metabolized by lipases as those in a liquid phase (Sinesky, 1974;Ohtsu et al, 1993;Hazel, 1987;Hazel, 1995;Joanisse and Storey, 1996;Bennet et al, 1997;Kostal and Simek, 1998;Buckner et al, 2004;Atapour et al, 2007;Van Dooremalen et al, 2011;Rozsypal et al, 2014).…”

Effects of Low Temperature on the Fatty Acid Compositions of Adult of Acanthoscelides obtectus (Say) (Coleoptera: Chrysomelidae)

“…It has been found that many insects have adapted by increasing the unsaturated fatty acid to saturated fatty acid ratio during cold acclimation (Bennett and Lee, 1997). According to Atapour et al (2007) saturated fatty acids significantly decreased and conversely unsaturated fatty acids Kalyoncu and Çetin / Selcuk J AgrFood Sci, (2017) 31 (1), 11-15 increased from August (pre-diapause) to October (initiation of diapause) for Chilo suppressalis (Lepidoptera: Pyralidae).…”

Seasonal changes in the composition of storage and membrane lipids in overwintering larvae of the codling moth, Cydia pomonella

“…This is true not only for insects (Harwood and Takata, 1965;Keith, 1966;Baldus and Mutchmor, 1988;Ohtsu et al, 1993;Joanisse and Storey, 1996;Buckner et al, 2004;Atapour et al, 2007) but also for vertebrate poikilotherms (Geiser et al, 1992;Shen et al, 2005) or heterothermic mammalian hibernators (Fawcett and Lyman, 1954;Frank, 1991;Geiser, 1993;Munro and Thomas, 2004). The seasonal increase in unsaturation is believed to be adaptive, aimed at preventing solidification/maintaining fluidity of depot fats which serve as substrates to fuel metabolism during period of dormancy at low body temperatures (Frank, 1991;Joanisse and Storey, 1996).…”