Specific incorporation of L-glutamine into volicitin in the regurgitant of Spodoptera litura |
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Authors: | Yoshinaga Naoko Sawada Yoshitsugu Nishida Ritsuo Kuwahara Yasumasa Mori Naoki |
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Affiliation: | Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Sakyo, Japan. |
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Abstract: | Volicitin, [N-(17-hydroxylinolenoyl)-L-glutamine], was identified as an elicitor of plant volatiles from a Spodoptera exigua regurgitant. It has been proposed that gut microbes synthesize volicitin from glutamine, a predominant amino acid component in the insect gut. However, we found that glutamine was not a major component in the regurgitant of Spodoptera litura, although L-glutamine was exclusively incorporated into volicitin by S. litura fed on diets enriched with various amino acids. This selectivity of glutamine as a substrate was not due to a dominant occurrence in the insect gut. |
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