Farmer beetle finds suitable host trees by tracing scent of its fungus crop frontiersin frontiersin
Alnus ambrosia beetles in their galleries, tending the brood and fungus. Credit: Antonio Gugliuzzo
to aggregate en masse and potentially kill trees," said the study's senior author Dr. Peter Biedermann, a professor at the Forestry Institute of the University of Freiburg in Germany.First author Antonio Gugliuzzo, a Ph.D. student at the Department of Agriculture, Food and Environment of the University of Catania in Italy, added,"This is the first evidence for the existence of aggregation pheromones inLike all ambrosia beetles, X.
In a variant of this experiment, previously healthy beech branches infected with different fungi were presented to the beetles as options for choice.Beetles prefer odor of symbionts and colonized branches "Occupied tree branches may signal the beetles suitable substrate for the food fungi they depend on. This suitability is probably a delicate balance: trees need specific requirements to allow the beetles to farm the fungus successfully," said Biedermann.
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