000056253 001__ 56253 000056253 005__ 20180211181828.0 000056253 0247_ $$2pmid$$apmid:17356850 000056253 0247_ $$2DOI$$a10.1007/s00425-007-0503-5 000056253 0247_ $$2WOS$$aWOS:000247204800022 000056253 037__ $$aPreJuSER-56253 000056253 041__ $$aeng 000056253 082__ $$a580 000056253 084__ $$2WoS$$aPlant Sciences 000056253 1001_ $$0P:(DE-Juel1)VDB28478$$aThorpe, M. R.$$b0$$uFZJ 000056253 245__ $$a11C-imaging: methyl jasmonate moves in both phloem and xylem, promotes transport of jasmonate, and of photoassimilate even after proton transport is decoupled 000056253 260__ $$aBerlin$$bSpringer$$c2007 000056253 300__ $$a541 - 551 000056253 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article 000056253 3367_ $$2DataCite$$aOutput Types/Journal article 000056253 3367_ $$00$$2EndNote$$aJournal Article 000056253 3367_ $$2BibTeX$$aARTICLE 000056253 3367_ $$2ORCID$$aJOURNAL_ARTICLE 000056253 3367_ $$2DRIVER$$aarticle 000056253 440_0 $$04992$$aPlanta$$v226$$x0032-0935$$y2 000056253 500__ $$aRecord converted from VDB: 12.11.2012 000056253 520__ $$aThe long-distance transport and actions of the phytohormone methyl jasmonate (MeJA) were investigated by using the short-lived positron-emitting isotope 11C to label both MeJA and photoassimilate, and compare their transport properties in the same tobacco plants (Nicotiana tabacum L.). There was strong evidence that MeJA moves in both phloem and xylem pathways, because MeJA was exported from the labeled region of a mature leaf in the direction of phloem flow, but it also moved into other parts of the same leaf and other mature leaves against the direction of phloem flow. This suggests that MeJA enters the phloem and moves in sieve tube sap along with photoassimilate, but that vigorous exchange between phloem and xylem allows movement in xylem to regions which are sources of photoassimilate. This exchange may be enhanced by the volatility of MeJA, which moved readily between non-orthostichous vascular pathways, unlike reports for jasmonic acid (which is not volatile). The phloem loading of MeJA was found to be inhibited by parachloromercuribenzenesulfonic acid (PCMBS) (a thiol reagent known to inhibit membrane transporters), and by protonophores carbonyl cyanide 3-chlorophenylhydrazone (CCCP) and 2,4-dinitrophenol (DNP) suggesting proton co-transport. MeJA was found to promote both its own transport and that of recent photoassimilate within 60 min. Furthermore, we found that MeJA can counter the inhibitory effect of the uncoupling agent, CCCP, on sugar transport, suggesting that MeJA affects the plasma membrane proton gradient. We also found that MeJA's action may extend to the sucrose transporter, since MeJA countered the inhibitory effects of the sulfhydryl reagent, PCMBS, on the transport of photoassimilate. 000056253 536__ $$0G:(DE-Juel1)FUEK407$$2G:(DE-HGF)$$aTerrestrische Umwelt$$cP24$$x0 000056253 588__ $$aDataset connected to Web of Science, Pubmed 000056253 650_2 $$2MeSH$$a2,4-Dinitrophenol: pharmacology 000056253 650_2 $$2MeSH$$a4-Chloromercuribenzenesulfonate: pharmacology 000056253 650_2 $$2MeSH$$aAcetic Acids: metabolism 000056253 650_2 $$2MeSH$$aBiological Transport: drug effects 000056253 650_2 $$2MeSH$$aCarbon Radioisotopes 000056253 650_2 $$2MeSH$$aCarbonyl Cyanide m-Chlorophenyl Hydrazone: pharmacology 000056253 650_2 $$2MeSH$$aCyclopentanes: metabolism 000056253 650_2 $$2MeSH$$aOxylipins 000056253 650_2 $$2MeSH$$aPhloem: metabolism 000056253 650_2 $$2MeSH$$aPhotosynthesis 000056253 650_2 $$2MeSH$$aTobacco: drug effects 000056253 650_2 $$2MeSH$$aTobacco: metabolism 000056253 650_2 $$2MeSH$$aXylem: metabolism 000056253 650_7 $$00$$2NLM Chemicals$$aAcetic Acids 000056253 650_7 $$00$$2NLM Chemicals$$aCarbon Radioisotopes 000056253 650_7 $$00$$2NLM Chemicals$$aCyclopentanes 000056253 650_7 $$00$$2NLM Chemicals$$aOxylipins 000056253 650_7 $$01211-29-6$$2NLM Chemicals$$amethyl jasmonate 000056253 650_7 $$051-28-5$$2NLM Chemicals$$a2,4-Dinitrophenol 000056253 650_7 $$0554-77-8$$2NLM Chemicals$$a4-Chloromercuribenzenesulfonate 000056253 650_7 $$0555-60-2$$2NLM Chemicals$$aCarbonyl Cyanide m-Chlorophenyl Hydrazone 000056253 650_7 $$06894-38-8$$2NLM Chemicals$$ajasmonic acid 000056253 650_7 $$2WoSType$$aJ 000056253 65320 $$2Author$$amethyl jasmonate 000056253 65320 $$2Author$$acarbon-11 000056253 65320 $$2Author$$aC-11 000056253 65320 $$2Author$$aNicotiana tabacum 000056253 65320 $$2Author$$aphloem loading 000056253 65320 $$2Author$$aphloem transport 000056253 65320 $$2Author$$aplant defenses 000056253 65320 $$2Author$$asectoriality 000056253 65320 $$2Author$$asucrose transporters 000056253 65320 $$2Author$$aPCMBS 000056253 65320 $$2Author$$aCCCP 000056253 65320 $$2Author$$aDNP 000056253 65320 $$2Author$$avascular architecture 000056253 7001_ $$0P:(DE-HGF)0$$aFerrieri, A. P.$$b1 000056253 7001_ $$0P:(DE-HGF)0$$aHerth, M. M.$$b2 000056253 7001_ $$0P:(DE-HGF)0$$aFerrieri, R. A.$$b3 000056253 773__ $$0PERI:(DE-600)1463030-8$$a10.1007/s00425-007-0503-5$$gVol. 226, p. 541 - 551$$p541 - 551$$q226<541 - 551$$tPlanta$$v226$$x0032-0935$$y2007 000056253 8567_ $$uhttp://dx.doi.org/10.1007/s00425-007-0503-5 000056253 909CO $$ooai:juser.fz-juelich.de:56253$$pVDB 000056253 9131_ $$0G:(DE-Juel1)FUEK407$$bErde und Umwelt$$kP24$$lTerrestrische Umwelt$$vTerrestrische Umwelt$$x0 000056253 9141_ $$y2007 000056253 915__ $$0StatID:(DE-HGF)0010$$aJCR/ISI refereed 000056253 9201_ $$0I:(DE-Juel1)ICG-3-20090406$$d31.10.2010$$gICG$$kICG-3$$lPhytosphäre$$x1 000056253 970__ $$aVDB:(DE-Juel1)88211 000056253 980__ $$aVDB 000056253 980__ $$aConvertedRecord 000056253 980__ $$ajournal 000056253 980__ $$aI:(DE-Juel1)IBG-2-20101118 000056253 980__ $$aUNRESTRICTED 000056253 981__ $$aI:(DE-Juel1)IBG-2-20101118 000056253 981__ $$aI:(DE-Juel1)ICG-3-20090406