{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,3]],"date-time":"2026-10-03T22:52:12Z","timestamp":1791067932570,"version":"4.1.0"},"reference-count":45,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2015,1,2]],"date-time":"2015-01-02T00:00:00Z","timestamp":1420156800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100001409","name":"Department of Science and Technology, Ministry of Science and Technology","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100001409","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Plant Biol J"],"published-print":{"date-parts":[[2015,5]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Tomato plants colonised with the arbuscular mycorrhizal (<jats:styled-content style=\"fixed-case\">AM<\/jats:styled-content>) fungus <jats:italic>Glomus fasciculatum<\/jats:italic> show systemic induced resistance to the foliar pathogen <jats:italic>Alternaria alternata<\/jats:italic>, as observed in interactions of other <jats:styled-content style=\"fixed-case\">AM<\/jats:styled-content>\u2010colonised plants with a range of pathogens. The role of jasmonic (<jats:styled-content style=\"fixed-case\">JA<\/jats:styled-content>) and salicylic (<jats:styled-content style=\"fixed-case\">SA<\/jats:styled-content>) acid in expression of this mycorrhiza\u2010induced resistance (<jats:styled-content style=\"fixed-case\">MIR<\/jats:styled-content>) against <jats:italic>A.\u00a0alternata<\/jats:italic> was studied by measuring: (i) activity of enzymes reported to be involved in their biosynthesis, namely lipoxygenase (<jats:styled-content style=\"fixed-case\">LOX<\/jats:styled-content>) and phenylammonia lyase (<jats:styled-content style=\"fixed-case\">PAL<\/jats:styled-content>); and (ii) levels of methyl jasmonate (Me<jats:styled-content style=\"fixed-case\">JA<\/jats:styled-content>) and <jats:styled-content style=\"fixed-case\">SA<\/jats:styled-content>. Transcript abundance of some defence genes associated with <jats:styled-content style=\"fixed-case\">JA<\/jats:styled-content> and <jats:styled-content style=\"fixed-case\">SA<\/jats:styled-content> response pathways were also studied. Both <jats:styled-content style=\"fixed-case\">LOX<\/jats:styled-content> and <jats:styled-content style=\"fixed-case\">PAL<\/jats:styled-content> activity increased twofold in response to pathogen application to control plants. <jats:styled-content style=\"fixed-case\">AM<\/jats:styled-content>\u2010colonised plants had three\u2010fold higher <jats:styled-content style=\"fixed-case\">LOX<\/jats:styled-content> activity compared to control plants, but unlike controls, this did not increase further in response to pathogen application. Higher <jats:styled-content style=\"fixed-case\">LOX<\/jats:styled-content> activity in <jats:styled-content style=\"fixed-case\">AM<\/jats:styled-content>\u2010colonised plants correlated with four\u2010fold higher Me<jats:styled-content style=\"fixed-case\">JA<\/jats:styled-content> in leaves of <jats:styled-content style=\"fixed-case\">AM<\/jats:styled-content>\u2010colonised plants compared to controls. Treatment of plants with the <jats:styled-content style=\"fixed-case\">JA<\/jats:styled-content> biosynthesis inhibitor salicylhydroxamic acid (<jats:styled-content style=\"fixed-case\">SHAM<\/jats:styled-content>) led to 50% lower Me<jats:styled-content style=\"fixed-case\">JA<\/jats:styled-content> in both control and <jats:styled-content style=\"fixed-case\">AM<\/jats:styled-content>\u2010colonised plants and correlated with increased susceptibility to <jats:italic>A.\u00a0alternata<\/jats:italic>, suggesting a causal role for <jats:styled-content style=\"fixed-case\">JA<\/jats:styled-content> in expression of <jats:styled-content style=\"fixed-case\">MIR<\/jats:styled-content> against the pathogen. Genes involved in <jats:styled-content style=\"fixed-case\">JA<\/jats:styled-content> biosynthesis (<jats:italic><jats:styled-content style=\"fixed-case\">OPR<\/jats:styled-content>3<\/jats:italic>) and response (<jats:italic><jats:styled-content style=\"fixed-case\">COI<\/jats:styled-content>1<\/jats:italic>) showed six\u2010 and 42\u2010fold higher expression, respectively, in leaves of <jats:styled-content style=\"fixed-case\">AM<\/jats:styled-content>\u2010colonised plants compared to controls. <jats:styled-content style=\"fixed-case\">AM<\/jats:styled-content>\u2010colonised plants also showed increased expression of the <jats:styled-content style=\"fixed-case\">SA<\/jats:styled-content> response gene <jats:italic><jats:styled-content style=\"fixed-case\">PR<\/jats:styled-content>1<\/jats:italic> and that of the wound\u2010inducible polypeptide prosystemin. Our results suggest that the systemic increase in <jats:styled-content style=\"fixed-case\">JA<\/jats:styled-content> in response to <jats:styled-content style=\"fixed-case\">AM<\/jats:styled-content> colonisation plays a key role in expression of <jats:styled-content style=\"fixed-case\">MIR<\/jats:styled-content> against <jats:italic>A. alternata<\/jats:italic>.<\/jats:p>","DOI":"10.1111\/plb.12277","type":"journal-article","created":{"date-parts":[[2014,10,18]],"date-time":"2014-10-18T12:40:31Z","timestamp":1413636031000},"page":"625-631","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":86,"title":["Systemic jasmonic acid modulation in mycorrhizal tomato plants and its role in induced resistance against <i>Alternaria alternata<\/i>"],"prefix":"10.1111","volume":"17","author":[{"given":"A.","family":"Nair","sequence":"first","affiliation":[{"name":"Department of Botany University of Pune Pune India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S. 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