Sesquiterpene progenitor, germacrene A: an alarm pheromone in aphids

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Science  06 May 1977:
Vol. 196, Issue 4290, pp. 680-681
DOI: 10.1126/science.558651


Germacrene A, the elusive biogenetic "parent" of many sesquiterpenes, has been isolated from the spotted alfalfa aphid and identified as a new intrageneric aphid alarm pheromone.

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