Analyses of Heliothis zea (Boddie) reared on a diet essentially free of lipids indicated that the larvae synthesized palmitic, palmitoleic, stearic, and oleic acids from nonfat sources. Fourteen-, 16-, and 18-carbon fatty acids were tolerated when added to a wheat germ diet in concentrations of 0.3–1.0% and were subsequently increased in the body fat of larvae. Fatty acids not synthesized by the insect, particularly linoleic and linolenic, were incorporated from the diet into the body fat to a greater extent than those that are synthesized. When larvae contained a high level of a polyunsaturated fatty acid, the amount of palmitoleic acid was decreased. There were generally lower proportionate amounts of stearic, linoleic, and linolenic acids and higher proportionate amounts of palmitic and oleic acids in larvae of progressively large size.

中文翻译：

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棉铃虫的生长和脂肪酸组成，玉米（鳞翅目：夜蛾科），受膳食脂肪的影响

对以基本不含脂质的饮食饲养的玉米 (Boddie) 的分析表明，幼虫从非脂肪来源合成棕榈酸、棕榈油酸、硬脂酸和油酸。当将 0.3-1.0% 的浓度添加到小麦胚芽饮食中时，14、16 和 18 碳脂肪酸是可以耐受的，随后幼虫体脂肪中的含量会增加。昆虫不合成的脂肪酸，特别是亚油酸和亚麻酸，从饮食中吸收到身体脂肪中的程度比合成的要多。当幼虫含有高水平的多不饱和脂肪酸时，棕榈油酸的量会减少。在逐渐变大的幼虫中，硬脂酸、亚油酸和亚麻酸的比例通常较低，而棕榈酸和油酸的比例较高。