18
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: not found
      • Article: not found

      New roles for cis-jasmone as an insect semiochemical and in plant defense

      Read this article at

      ScienceOpenPublisherPMC
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          cis-jasmone, or (Z)-jasmone, is well known as a component of plant volatiles, and its release can be induced by damage, for example during insect herbivory. Using the olfactory system of the lettuce aphid to investigate volatiles from plants avoided by this insect, (Z)-jasmone was found to be electrophysiologically active and also to be repellent in laboratory choice tests. In field studies, repellency from traps was demonstrated for the damson-hop aphid, and with cereal aphids numbers were reduced in plots of winter wheat treated with (Z)-jasmone. In contrast, attractant activity was found in laboratory and wind tunnel tests for insects acting antagonistically to aphids, namely the seven-spot ladybird and an aphid parasitoid. When applied in the vapor phase to intact bean plants, (Z)-jasmone induced the production of volatile compounds, including the monoterpene (E)-beta-ocimene, which affect plant defense, for example by stimulating the activity of parasitic insects. These plants were more attractive to the aphid parasitoid in the wind tunnel when tested 48 h after exposure to (Z)-jasmone had ceased. This possible signaling role of (Z)-jasmone is qualitatively different from that of the biosynthetically related methyl jasmonate and gives a long-lasting effect after removal of the stimulus. Differential display was used to compare mRNA populations in bean leaves exposed to the vapor of (Z)-jasmone and methyl jasmonate. One differentially displayed fragment was cloned and shown by Northern blotting to be up-regulated in leaf tissue by (Z)-jasmone. This sequence was identified by homology as being derived from a gene encoding an alpha-tubulin isoform.

          Related collections

          Most cited references28

          • Record: found
          • Abstract: not found
          • Article: not found

          Differential display of eukaryotic messenger RNA by means of the polymerase chain reaction

            Bookmark
            • Record: found
            • Abstract: not found
            • Article: not found

            An Elicitor of Plant Volatiles from Beet Armyworm Oral Secretion

              Bookmark
              • Record: found
              • Abstract: not found
              • Article: not found

              Interplant communication: airborne methyl jasmonate induces synthesis of proteinase inhibitors in plant leaves.

                Bookmark

                Author and article information

                Journal
                Proceedings of the National Academy of Sciences
                Proceedings of the National Academy of Sciences
                Proceedings of the National Academy of Sciences
                0027-8424
                1091-6490
                August 01 2000
                July 18 2000
                August 01 2000
                : 97
                : 16
                : 9329-9334
                Article
                10.1073/pnas.160241697
                16867
                10900270
                7b11bffd-b938-466d-b4b8-64383b4c226d
                © 2000
                History

                Comments

                Comment on this article