Host selection in Tomicus piniperda L. : Composition of monoterpene hydrocarbons in relation to attack frequency in the shoot feeding phase

• The aim of this study was to investigate the host selection capacity of the pine shoot beetle, Tomicus piniperda, in the shoot-feeding phase and analyze the chiral and non-chiral host volatiles by means of GC-MS and 2D-GC in five Pinus species originating from France (Pinus sylvestris, P. halepensis, P. nigra laricio, P. pinaster maritima, P. pinaster mesogeensis). Dominating monoterpenes were (-)-α-pinene, (+)-α-pinene, (-)-β-pinene and (+)-3-carene. The amounts of the enantiomers varied considerably within and among the species. In a principal component analysis-plot, based on the absolute amounts of 18 monoterpene hydrocarbons, separation of the pine species into two groups was obtained. P. halepensis and P. sylvestris were grouped according to the amount of (+)-α-pinene and (+)-3-carene, while P. nigra laricio, P. pinaster maritima and P. pinaster mesogeensis were grouped according to (-)-α-pinene and (-)-β-pinene. P. nigra laricio was the species most attacked and P. halepensis the one least attacked by T. piniperda.

Ämnesord

NATURVETENSKAP  -- Biologi -- Biokemi och molekylärbiologi (hsv//swe)

NATURAL SCIENCES  -- Biological Sciences -- Biochemistry and Molecular Biology (hsv//eng)

Nyckelord

(-)-α-Pinene

Host Preference

Tomicus

hydrocarbon

terpene

animal

animal food

article

beetle

environment

France

host parasite interaction

metabolism

parasitology

pathogenicity

pine

plant

plant disease

Animal Feed

Animals

Beetles

Host-Parasite Relations

Hydrocarbons

Monoterpenes

Pinus

Plant Diseases

Plant Shoots

Plants

Coleoptera

Pinus halepensis

Pinus nigra

Pinus pinaster

Pinus sylvestris

Tomicus piniperda

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)