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@ARTICLE{Jansen:1288,
      author       = {Jansen, R.M.C. and Hostee, J.W. and Wildt, J. and
                      Verstappen, F.W.A. and Bouwmeester, H.J. and Posthumus, M.A.
                      and van Henten, E.J.},
      title        = {{H}ealth monitoring of plants by their emitted volatiles:
                      trichome damage and cell membrane damage is detectable at
                      greenhouse scale},
      journal      = {Annals of applied biology},
      volume       = {154},
      issn         = {1744-7348},
      address      = {Oxford},
      publisher    = {Wiley-Blackwell},
      reportid     = {PreJuSER-1288},
      pages        = {441 - 452},
      year         = {2009},
      note         = {The authors wish to thank Unifarm Experimental Station in
                      Wageningen for providing greenhouse facilities. We are
                      grateful to Dr Jacek Koziel for his valuable comments on the
                      manuscript. This study was financially supported by the
                      European Science Foundation (VOCBAS grants 814 and 974).},
      abstract     = {Pathogen attack and herbivore infestation have a major
                      impact on plant health. In a model study, these two plant
                      health issues were simulated to study whether plant health
                      can be monitored at greenhouse scale through the analysis of
                      volatile organic compounds (VOCs) in greenhouse atmosphere.
                      To simulate pathogen attack and herbivore infestation, we
                      repeatedly stroked the stems of tomato plants (Lycopersicon
                      esculentum) and repeatedly removed their side shoots. In
                      addition, we studied the effect of fruit picking on the
                      concentration of plant-emitted VOCs in greenhouse
                      atmosphere. Analysis of air samples obtained before these
                      treatments revealed up to 17 VOCs that are known to be
                      released from tomato plants, of which the most dominant one
                      was the monoterpene β-phellandrene. When plants were
                      7 weeks old, the concentration of this VOC was
                      approximately 0.06 ppbv before treatment. When plants were
                      12 weeks old, this concentration was raised to
                      approximately 0.14 ppbv. Stroking of the stems, removing
                      the side shoots and fruit picking resulted in an increase in
                      the concentrations of all mono- and most sesquiterpenes up
                      to 60-fold, which was expected because these VOCs are
                      well-known constituents of trichomes. The treatments did not
                      result in substantially increased concentrations of the
                      stress-related compounds α-copaene, methyl salicylate and
                      (E,E)-4,8,12-trimethyl-1,3,7,11-tridecatetraene. In contrast
                      to stroking and fruit picking, shoot removal resulted in the
                      emission of the lipoxygenase-derived product (Z)-3-hexenol
                      in greenhouse atmosphere expressing cell membrane
                      degradation. The findings presented in this paper focus on
                      the feasibility of monitoring plant health through the
                      analysis of VOCs in greenhouse air, but findings might also
                      be relevant for atmospheric chemistry.},
      cin          = {ICG-3},
      ddc          = {570},
      cid          = {I:(DE-Juel1)ICG-3-20090406},
      pnm          = {Terrestrische Umwelt},
      pid          = {G:(DE-Juel1)FUEK407},
      shelfmark    = {Agriculture, Multidisciplinary},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000265882500012},
      doi          = {10.1111/j.1744-7348.2008.00311.x},
      url          = {https://juser.fz-juelich.de/record/1288},
}