Differential activity and degradation of plant volatile elicitors in regurgitant of tobacco hornworm (Manduca sexta) larvae.
作者： H. T. Alborn , M. M. Brennan , J. H. Tumlinson
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摘要: Plants respond to insect herbivory by emitting volatile compounds that attract natural enemies of the herbivores. Biosynthesis many these volatiles in plants is induced herbivore-produced compounds. Components tobacco hornworm (THW) regurgitant were investigated for their efficacy as elicitors corn seedling volatiles. Two components elicited strongest release isolated and identified N-linolenoyl-L-glutamine (18:3-GLN) N-linolenoyl-L-glutamic acid (18:3-GLU). The approximately 10 times more active 18:3-GLN, which also found several other Lepidopteran larvae, was rapidly degraded when THW left at room temperature, while 18:3-GLU a much slower rate. Different dietary sources bud worm including both host nonhost plants, did not affect amino composition fatty acid-amino conjugates regurgitant.
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