Linked Life Data

20711606

Source:http://linkedlifedata.com/resource/pubmed/id/20711606

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2010-9-16
pubmed:abstractText
cis-jasmone (CJ) is a plant-derived chemical that enhances direct and indirect plant defence against herbivorous insects. To study the signalling pathway behind this defence response, we performed microarray-based transcriptome analysis of CJ-treated Arabidopsis plants. CJ influenced a different set of genes from the structurally related oxylipin methyl jasmonate (MeJA), suggesting that CJ triggers a distinct signalling pathway. CJ is postulated to be biosynthetically derived from jasmonic acid, which can boost its own production through transcriptional up-regulation of the octadecanoid biosynthesis genes LOX2, AOS and OPR3. However, no effect on these genes was detected by treatment with CJ. Furthermore, CJ-responsive genes were not affected by mutations in COI1 or JAR1, which are critical signalling components in MeJA response pathway. Conversely, a significant proportion of CJ-inducible genes required the three transcription factors TGA2, TGA5 and TGA6, as well as the GRAS regulatory protein SCARECROW-like 14 (SCL14), indicating regulation by a different pathway from the classical MeJA response. Moreover, the biological importance was demonstrated in that mutations in TGA2, 5, 6, SCL14 and the CJ-inducible gene CYP81D11 blocked CJ-induced attraction of the aphid parasitoid Aphidius ervi, demonstrating that these components play a key role in CJ-induced indirect defence. Collectively, our results identify CJ as a member of the jasmonates that controls indirect plant defence through a distinct signalling pathway.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
http://linkedlifedata.com/resource/pubmed/chemical/AHBP-1b protein, Arabidopsis, http://linkedlifedata.com/resource/pubmed/chemical/Arabidopsis Proteins, http://linkedlifedata.com/resource/pubmed/chemical/Basic-Leucine Zipper Transcription..., http://linkedlifedata.com/resource/pubmed/chemical/COI1 protein, Arabidopsis, http://linkedlifedata.com/resource/pubmed/chemical/Cyclopentanes, http://linkedlifedata.com/resource/pubmed/chemical/JAR1 protein, Arabidopsis, http://linkedlifedata.com/resource/pubmed/chemical/Nuclear Proteins, http://linkedlifedata.com/resource/pubmed/chemical/Nucleotidyltransferases, http://linkedlifedata.com/resource/pubmed/chemical/OBF5 protein, Arabidopsis, http://linkedlifedata.com/resource/pubmed/chemical/Oxylipins, http://linkedlifedata.com/resource/pubmed/chemical/TGA6 protein, Arabidopsis, http://linkedlifedata.com/resource/pubmed/chemical/jasmone
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
1432-2048
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
232
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1163-80
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
The transcriptome of cis-jasmone-induced resistance in Arabidopsis thaliana and its role in indirect defence.
pubmed:affiliation
Biological Chemistry Department, Rothamsted Research, Harpenden, Herts, AL5 2JQ, UK.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't