% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{BarronGafford:9027,
      author       = {Barron-Gafford, G.A. and Rascher, U. and Bronstein, J.L.
                      and Davidowitz, G. and Chaszar, B. and Huxman, T.E.},
      title        = {{H}erbivory of wild {M}anduca sexta causes fast
                      down-regulation of photosynthetic efficiency in {D}atura
                      wrightii: an early signaling cascade visualized by
                      chlorophyll fluorescence},
      journal      = {Photosynthesis research},
      volume       = {113},
      number       = {1-3},
      issn         = {0166-8595},
      address      = {Dordrecht [u.a.]},
      publisher    = {Springer Science + Business Media B.V},
      reportid     = {PreJuSER-9027},
      pages        = {249-260},
      year         = {2012},
      note         = {We thank Abreeza Zegeer for greenhouse assistance and
                      Katherine Grieve Rascher, Bryan Helm, and Kristen Potter for
                      assistance in conducting measurements or providing larvae.
                      This study was primarily supported by the National Science
                      Foundation grants to J.L.B., G. D. and T. E. H. (DEB 0316205
                      and 0522431) and to U. R. (INT-0340609). Additional support
                      was provided by the Philecology Foundation of Fort Worth
                      Texas and the Forschungszentrum Julich GmbH.},
      abstract     = {Plants experiencing herbivory suffer indirect costs beyond
                      direct loss of leaf area, but differentially so based on the
                      herbivore involved. We used a combination of chlorophyll
                      fluorescence imaging and gas exchange techniques to quantify
                      photosynthetic performance, the efficiency of
                      photochemistry, and heat dissipation to examine immediate
                      and longer-term physiological responses in the desert
                      perennial Datura wrightii to herbivory by tobacco hornworm,
                      Manduca sexta. Herbivory by colony-reared larvae yielded no
                      significant reduction in carbon assimilation, whereas
                      herbivory by wild larvae induced a fast and spreading
                      down-regulation of photosynthetic efficiency, resulting in
                      significant losses in carbon assimilation in eaten and
                      uneaten leaves. We found both an $89 \%$ reduction in net
                      photosynthetic rates in herbivore-damaged leaves and a
                      whole-plant response $(79 \%$ decrease in undamaged leaves
                      from adjacent branches). Consequently, herbivory costs are
                      higher than previously estimated in this well-studied
                      plant-insect interaction. We used chlorophyll fluorescence
                      imaging to elucidate the mechanisms of this down-regulation.
                      Quantum yield decreased up to $70 \%$ in a small concentric
                      band surrounding the feeding area within minutes of the
                      onset of herbivory. Non-photochemical energy dissipation by
                      the plant to avoid permanent damage was elevated near the
                      wound, and increased systematically in distant areas of the
                      leaf away from the wound over subsequent hours. Together,
                      the results underscore not only potential differences
                      between colony-reared and wild-caught herbivores in
                      experimental studies of herbivory but also the benefits of
                      quantifying physiological responses of plants in unattacked
                      leaves.},
      keywords     = {J (WoSType)},
      cin          = {IBG-2},
      ddc          = {580},
      cid          = {I:(DE-Juel1)IBG-2-20101118},
      pnm          = {Terrestrische Umwelt},
      pid          = {G:(DE-Juel1)FUEK407},
      shelfmark    = {Plant Sciences},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:22576017},
      UT           = {WOS:000308188800018},
      doi          = {10.1007/s11120-012-9741-x},
      url          = {https://juser.fz-juelich.de/record/9027},
}