Plutella xylostella (L.) infestations at varying temperatures induce the emission of specific volatile blends by Arabidopsis thaliana (L.) Heynh
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In: Plant Signaling and Behavior, Vol. 9, No. 11, e973816, 2014.
Research output: Journal contributions › Journal articles › Research › peer-review
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TY - JOUR
T1 - Plutella xylostella (L.) infestations at varying temperatures induce the emission of specific volatile blends by Arabidopsis thaliana (L.) Heynh
AU - Truong, Dieu Hien
AU - Delory, Benjamin M.
AU - Brostaux, Yves
AU - Heuskin, Stéphanie
AU - Delaplace, Pierre
AU - Francis, Frédéric
AU - Lognay, Georges
N1 - Funding Information: Dieu-Hien Truong is the recipient of a Ph.D. scholarship from the Ministry of Education and Training Vietnam. Benjamin M. Delory received financial support from the Belgian Fund for Scientific Research (FRS-FNRS). Publisher Copyright: © 2014 Taylor & Francis Group, LLC.
PY - 2014
Y1 - 2014
N2 - The effect of combined abiotic and biotic factors on plant volatile organic compound (VOC) emissions is poorly understood. This study evaluated the VOC emissions produced by Arabidopsis thaliana (L.) Col-0 subjected to 3 temperature regimes (17, 22, and 27_C) in the presence and absence of Plutella xylostella larvae over 2 time intervals (0– 4 and 4–8 h), in comparison to control plants. The analyses of VOCs emitted by Arabidopsis plants were made by headspace solid phase microextraction (HS-SPME) coupled with gas chromatography-mass spectrometry (GC-MS). It was found that certain volatile groups (e.g., alcohols, ketones, aldehydes, and terpenes) are induced by both single factors (temperature or larval infestation) and combined factors (temperature and larvae interactions), whereas other volatile groups (e.g., isothiocyanates [ITCs] and nitrile) were specific to the experimental conditions. ITCs (mainly 4- methylpentyl isothiocyanate) were emitted from plants subjected to larval infestation at 17 and 27_C after the 2 time intervals. The proportions of sulfides (mainly dimethyl disulfide) and 4-(methylthio) butanenitrile were significantly higher on herbivore-infested plants at 22_C compared to the other treatments. Overall, our findings indicate that changes in all experimental conditions caused significant changes to the VOC emissions of Arabidopsis plants. Therefore, the interaction between temperature and larval feeding may represent an important factor determining the variability of volatile emissions by plants subjected to multiple simultaneous factors.
AB - The effect of combined abiotic and biotic factors on plant volatile organic compound (VOC) emissions is poorly understood. This study evaluated the VOC emissions produced by Arabidopsis thaliana (L.) Col-0 subjected to 3 temperature regimes (17, 22, and 27_C) in the presence and absence of Plutella xylostella larvae over 2 time intervals (0– 4 and 4–8 h), in comparison to control plants. The analyses of VOCs emitted by Arabidopsis plants were made by headspace solid phase microextraction (HS-SPME) coupled with gas chromatography-mass spectrometry (GC-MS). It was found that certain volatile groups (e.g., alcohols, ketones, aldehydes, and terpenes) are induced by both single factors (temperature or larval infestation) and combined factors (temperature and larvae interactions), whereas other volatile groups (e.g., isothiocyanates [ITCs] and nitrile) were specific to the experimental conditions. ITCs (mainly 4- methylpentyl isothiocyanate) were emitted from plants subjected to larval infestation at 17 and 27_C after the 2 time intervals. The proportions of sulfides (mainly dimethyl disulfide) and 4-(methylthio) butanenitrile were significantly higher on herbivore-infested plants at 22_C compared to the other treatments. Overall, our findings indicate that changes in all experimental conditions caused significant changes to the VOC emissions of Arabidopsis plants. Therefore, the interaction between temperature and larval feeding may represent an important factor determining the variability of volatile emissions by plants subjected to multiple simultaneous factors.
KW - Arabidopsis thaliana
KW - Combined factors
KW - Plutella xylostella
KW - Temperature regimes
KW - Volatile organic compounds (VOCs)
KW - Arabidopsis thaliana
KW - Combined factors
KW - Plutella xylostella
KW - Temperature regimes
KW - Volatile organic compounds (VOCs)
KW - Biology
KW - Sustainability Science
KW - Chemistry
UR - http://www.scopus.com/inward/record.url?scp=84922287286&partnerID=8YFLogxK
U2 - 10.4161/15592324.2014.973816
DO - 10.4161/15592324.2014.973816
M3 - Journal articles
C2 - 25482777
AN - SCOPUS:84922287286
VL - 9
JO - Plant Signaling and Behavior
JF - Plant Signaling and Behavior
SN - 1559-2316
IS - 11
M1 - e973816
ER -