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000007583 084__ $$2WoS$$aPlant Sciences
000007583 1001_ $$0P:(DE-Juel1)VDB68283$$aSchmidt, L.$$b0$$uFZJ
000007583 245__ $$aJasmonic acid does not mediate root growth responses to wounding in Arabidopsis thaliana
000007583 260__ $$aOxford [u.a.]$$bWiley-Blackwell$$c2010
000007583 300__ $$a104 - 116
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000007583 440_0 $$04976$$aPlant, Cell and Environment$$v33$$x0140-7791$$y1
000007583 500__ $$aWe thank John Turner (University of East Anglia, UK) for donation of A. thaliana coi1-1 seeds, and the NASC (Nottingham, UK) for A. thaliana aos and Col-6 seeds.Pseudomonas syringae pv. tomato DC3000 avrRpt2 were a kind gift of Corne Pieterse (Utrecht University, the Netherlands) and Pseudomonas syringae pv. tomato DC3000 NCPPB 1008 were kindly provided by Diane Cuppels and Teresa Ainsworth (Agriculture and Agri-Food Canada, London ON, Canada).We thank Roland Reist (Syngenta Crop Protection, Stein, Switzerland) for the Spodoptera littoralis eggs and Jon F. Fobes (AgroFresh Inc., Spring House, USA) for the SmartFresh powder.Vicky Temperton, Michael Thorpe and several other colleagues are thanked for critical discussion and helpful comments. This work was supported by funding from the Forschungszentrum Julich. L.S. acknowledges the support for her PhD thesis at the Heinrich-Heine-Universitat Dusseldorf.
000007583 520__ $$aJasmonic acid (JA) is a crucial plant defence signalling substance that has recently been shown to mediate herbivory-induced root growth reduction in the ecological model species Nicotiana attenuata. To clarify whether JA-induced reduction of root growth might be a general response increasing plant fitness under biotic stress, a suite of experiments was performed with the model plant Arabidopsis thaliana. JA bursts were elicited in leaves of A. thaliana in different ways. Root growth reduction was neither induced by foliar application of herbivore oral secretions nor by direct application of methyl jasmonate to leaves. Root growth reduction was observed when leaves were infected with the pathogen Pseudomonas syringae pv. tomato, which persistently induces the JA signalling pathway. Yet, high resolution growth analyses of this effect in wild type and JA biosynthesis knock-out mutants showed that it was elicited by the bacterial toxin coronatine that suggests ethylene- but not JA-induced root growth reduction in A. thaliana. Overall, the results demonstrate that the reaction of root growth to herbivore-induced JA signalling differs among species, which is discussed in the context of different ecological defence strategies among species.
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000007583 650_2 $$2MeSH$$aAcetic Acids: pharmacology
000007583 650_2 $$2MeSH$$aAmino Acids: pharmacology
000007583 650_2 $$2MeSH$$aAnimals
000007583 650_2 $$2MeSH$$aArabidopsis: growth & development
000007583 650_2 $$2MeSH$$aArabidopsis: metabolism
000007583 650_2 $$2MeSH$$aCyclopentanes: metabolism
000007583 650_2 $$2MeSH$$aCyclopentanes: pharmacology
000007583 650_2 $$2MeSH$$aCyclopropanes: pharmacology
000007583 650_2 $$2MeSH$$aEthylenes: metabolism
000007583 650_2 $$2MeSH$$aGene Knockout Techniques
000007583 650_2 $$2MeSH$$aIndenes: pharmacology
000007583 650_2 $$2MeSH$$aOxylipins: metabolism
000007583 650_2 $$2MeSH$$aOxylipins: pharmacology
000007583 650_2 $$2MeSH$$aPlant Leaves: metabolism
000007583 650_2 $$2MeSH$$aPlant Roots: growth & development
000007583 650_2 $$2MeSH$$aPseudomonas syringae
000007583 650_2 $$2MeSH$$aSignal Transduction
000007583 650_2 $$2MeSH$$aSpodoptera
000007583 650_7 $$00$$2NLM Chemicals$$aAcetic Acids
000007583 650_7 $$00$$2NLM Chemicals$$aAmino Acids
000007583 650_7 $$00$$2NLM Chemicals$$aCyclopentanes
000007583 650_7 $$00$$2NLM Chemicals$$aCyclopropanes
000007583 650_7 $$00$$2NLM Chemicals$$aEthylenes
000007583 650_7 $$00$$2NLM Chemicals$$aIndenes
000007583 650_7 $$00$$2NLM Chemicals$$aOxylipins
000007583 650_7 $$01211-29-6$$2NLM Chemicals$$amethyl jasmonate
000007583 650_7 $$062251-96-1$$2NLM Chemicals$$acoronatine
000007583 650_7 $$06894-38-8$$2NLM Chemicals$$ajasmonic acid
000007583 650_7 $$074-85-1$$2NLM Chemicals$$aethylene
000007583 650_7 $$2WoSType$$aJ
000007583 65320 $$2Author$$aPseudomonas syringae pv
000007583 65320 $$2Author$$atomato
000007583 65320 $$2Author$$acoronatine
000007583 65320 $$2Author$$aethylene
000007583 65320 $$2Author$$aimage analysis
000007583 65320 $$2Author$$aphytohormones
000007583 65320 $$2Author$$awounding
000007583 7001_ $$0P:(DE-Juel1)VDB67262$$aHummel, G. M.$$b1$$uFZJ
000007583 7001_ $$0P:(DE-HGF)0$$aSchöttner, M.$$b2
000007583 7001_ $$0P:(DE-Juel1)129402$$aSchurr, U.$$b3$$uFZJ
000007583 7001_ $$0P:(DE-Juel1)VDB2595$$aWalter, A.$$b4$$uFZJ
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