The influence of different nutrient levels on insect-induced plant volatiles in Bt and conventional oilseed rape plants.

Plant Biology
M A IbrahimJarmo K Holopainen

Abstract

Transgenic Bt (expressing the cry1Ac endotoxin gene) and conventional oilseed rape plants grown in different soils were used to study nutrient uptake and emission of volatiles after herbivore damage. All plants were greenhouse-grown in soils representing low-, medium- and high-nutrient levels. The concentrations of N, P, K, Mg and Zn were significantly affected by the transgene, while the main effect of soil type appeared in N, P, Ca, Mg, B, Mn and Zn concentrations in the plants. Plants with four to five leaves were infested with the third instar larvae of Bt-susceptible Plutella xylostella for 48 h, and samples of volatiles were collected and analysed. In the first experiment, the soil nutrient level had a significant effect on the emissions of (Z)-3-hexen-1-ol, (Z)-3-hexenyl acetate, hexyl acetate, (E)-4,8-dimethyl-1,3,7-non-atriene (DMNT), beta-elemene, gamma-bisabolene, alpha-bisabolene and (E)-nerolidol. The induction of these volatiles was significantly higher in infested conventional plants grown at a high-soil nutrient level compared to infested conventional plants at a low-soil nutrient level. In the second experiment, the soil nutrient level had a significant effect on the emissions of (Z)-3-hexen-1-ol, (Z)-3-hexenyl...Continue Reading

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Citations

Sep 15, 2010·Journal of Chemical Ecology·Jarmo K HolopainenGiorgio A Alessio
Feb 26, 2010·Journal of Experimental Botany·Mohamed A IbrahimElina J Oksanen
Mar 19, 2013·Journal of Experimental Botany·Matthias Erb, Jing Lu
Feb 11, 2010·Trends in Plant Science·Jarmo K Holopainen, Jonathan Gershenzon
Jan 21, 2016·BioMed Research International·Christine BeckerAnne-Violette Lavoir
Jan 24, 2008·Plant Biology·Francesco LoretoJörg-Peter Schnitzler
Jan 27, 2018·Environmental Science and Pollution Research International·Marimuthu GovindarajanGiovanni Benelli
Jun 15, 2011·Natural Product Reports·Massimo E MaffeiGiovanni Appendino
Aug 12, 2008·BioEssays : News and Reviews in Molecular, Cellular and Developmental Biology·Jarmo K Holopainen
May 28, 2019·Plant Signaling & Behavior·Elvira S De Lange, Cesar Rodriguez-Saona

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