TY - JOUR

T1 - Temperature regimes and aphid density interactions differentially influence VOC emissions in Arabidopsis

AU - Truong, Dieu Hien

AU - Delory, Benjamin M.

AU - Vanderplanck, Maryse

AU - Brostaux, Yves

AU - Vandereycken, Axel

AU - Heuskin, Stéphanie

AU - Delaplace, Pierre

AU - Francis, Frédéric

AU - Lognay, Georges

PY - 2014/8

Y1 - 2014/8

N2 - The effects of volatile emissions from plants exposed to individual abiotic and biotic stresses are well documented. However, the influence of multiple stresses on plant photosynthesis and defense responses, resulting in a variety of volatile profiles has received little attention. In this study, we investigated how temperature regimes in the presence and absence of the sucking insect Myzus persicae affected volatile organic compound (VOC) emissions in Arabidopsis over three time periods (0-24, 24-48, and 48-72 h). Headspace solid-phase microextraction coupled with gas chromatography-mass spectrometry was used to evaluate Arabidopsis VOCs. The results showed that under laboratory conditions, eight volatile classes [alcohols (mainly 2-ethyl-hexan-1-ol), ketone (6-methyl hept-5-en-2-one), esters (mainly (Z)-3-hexenyl acetate), aldehydes (mainly phenylacetaldehyde), isothiocyanates (mainly 4-methylpentyl isothiocyanate), terpenes (mainly (E,E)-α-farnesene), nitrile (5-(methylthio) pentanenitrile), and sulfide (dimethyl trisulfide)] were observed on plants exposed to stress combinations, whereas emissions of six volatile classes were observed during temperature stress treatments alone (with the exception of nitriles and sulfides). Aphid density at high temperature combinations resulted in significantly higher isothiocyanate, ester, nitrile, and sulfide proportions. The results of the present study provide an insight into the effects of temperature-aphid interactions on plant volatile emissions.

AB - The effects of volatile emissions from plants exposed to individual abiotic and biotic stresses are well documented. However, the influence of multiple stresses on plant photosynthesis and defense responses, resulting in a variety of volatile profiles has received little attention. In this study, we investigated how temperature regimes in the presence and absence of the sucking insect Myzus persicae affected volatile organic compound (VOC) emissions in Arabidopsis over three time periods (0-24, 24-48, and 48-72 h). Headspace solid-phase microextraction coupled with gas chromatography-mass spectrometry was used to evaluate Arabidopsis VOCs. The results showed that under laboratory conditions, eight volatile classes [alcohols (mainly 2-ethyl-hexan-1-ol), ketone (6-methyl hept-5-en-2-one), esters (mainly (Z)-3-hexenyl acetate), aldehydes (mainly phenylacetaldehyde), isothiocyanates (mainly 4-methylpentyl isothiocyanate), terpenes (mainly (E,E)-α-farnesene), nitrile (5-(methylthio) pentanenitrile), and sulfide (dimethyl trisulfide)] were observed on plants exposed to stress combinations, whereas emissions of six volatile classes were observed during temperature stress treatments alone (with the exception of nitriles and sulfides). Aphid density at high temperature combinations resulted in significantly higher isothiocyanate, ester, nitrile, and sulfide proportions. The results of the present study provide an insight into the effects of temperature-aphid interactions on plant volatile emissions.

KW - Arabidopsis thaliana

KW - Myzus persicae

KW - Stress combination

KW - Temperature regimes

KW - Volatile organic compounds (VOCs)

KW - Arabidopsis thaliana

KW - Myzus persicae

KW - Temperature regimes

KW - Stress combination

KW - Volatile organic compounds (VOCs)

KW - Biology

KW - Chemistry

KW - Sustainability sciences, Communication

UR - http://www.scopus.com/inward/record.url?scp=84904765628&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/70ae26d9-fa6f-3310-b3c4-6d29aaa50717/

U2 - 10.1007/s11829-014-9311-6

DO - 10.1007/s11829-014-9311-6

M3 - Journal articles

AN - SCOPUS:84904765628

VL - 8

SP - 317

EP - 327

JO - Arthropod-Plant Interactions : an international journal devoted to studies on interactions of insects, mites and other anthropods with plants

JF - Arthropod-Plant Interactions : an international journal devoted to studies on interactions of insects, mites and other anthropods with plants

SN - 1872-8855

IS - 4

ER -