000009027 001__ 9027 000009027 005__ 20180208200604.0 000009027 0247_ $$2pmid$$apmid:22576017 000009027 0247_ $$2DOI$$a10.1007/s11120-012-9741-x 000009027 0247_ $$2WOS$$aWOS:000308188800018 000009027 037__ $$aPreJuSER-9027 000009027 041__ $$aeng 000009027 082__ $$a580 000009027 084__ $$2WoS$$aPlant Sciences 000009027 1001_ $$0P:(DE-HGF)0$$aBarron-Gafford, G.A.$$b0 000009027 245__ $$aHerbivory of wild Manduca sexta causes fast down-regulation of photosynthetic efficiency in Datura wrightii: an early signaling cascade visualized by chlorophyll fluorescence 000009027 260__ $$aDordrecht [u.a.]$$bSpringer Science + Business Media B.V$$c2012 000009027 300__ $$a249-260 000009027 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article 000009027 3367_ $$2DataCite$$aOutput Types/Journal article 000009027 3367_ $$00$$2EndNote$$aJournal Article 000009027 3367_ $$2BibTeX$$aARTICLE 000009027 3367_ $$2ORCID$$aJOURNAL_ARTICLE 000009027 3367_ $$2DRIVER$$aarticle 000009027 440_0 $$014201$$aPhotosynthesis Research$$v113$$x0166-8595$$y1 000009027 500__ $$aWe thank Abreeza Zegeer for greenhouse assistance and Katherine Grieve Rascher, Bryan Helm, and Kristen Potter for assistance in conducting measurements or providing larvae. This study was primarily supported by the National Science Foundation grants to J.L.B., G. D. and T. E. H. (DEB 0316205 and 0522431) and to U. R. (INT-0340609). Additional support was provided by the Philecology Foundation of Fort Worth Texas and the Forschungszentrum Julich GmbH. 000009027 520__ $$aPlants 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. 000009027 536__ $$0G:(DE-Juel1)FUEK407$$2G:(DE-HGF)$$aTerrestrische Umwelt$$cP24$$x0 000009027 588__ $$aDataset connected to Web of Science, Pubmed 000009027 65320 $$2Author$$aHerbivory 000009027 65320 $$2Author$$aDatura wrightii 000009027 65320 $$2Author$$aManduca sexta 000009027 65320 $$2Author$$aDown regulation 000009027 65320 $$2Author$$aMutualism 000009027 65320 $$2Author$$aAntagonism 000009027 650_7 $$2WoSType$$aJ 000009027 7001_ $$0P:(DE-Juel1)129388$$aRascher, U.$$b1$$uFZJ 000009027 7001_ $$0P:(DE-Juel1)VDB91056$$aBronstein, J.L.$$b2$$uFZJ 000009027 7001_ $$0P:(DE-HGF)0$$aDavidowitz, G.$$b3 000009027 7001_ $$0P:(DE-HGF)0$$aChaszar, B.$$b4 000009027 7001_ $$0P:(DE-HGF)0$$aHuxman, T.E.$$b5 000009027 773__ $$0PERI:(DE-600)1475688-2$$a10.1007/s11120-012-9741-x$$gVol. 113$$n1-3$$p249-260$$q113$$tPhotosynthesis research$$v113$$x0166-8595$$y2012 000009027 8567_ $$uhttp://dx.doi.org/10.1007/s11120-012-9741-x 000009027 909CO $$ooai:juser.fz-juelich.de:9027$$pVDB 000009027 915__ $$0StatID:(DE-HGF)0010$$2StatID$$aJCR/ISI refereed 000009027 915__ $$0StatID:(DE-HGF)0100$$2StatID$$aJCR 000009027 915__ $$0StatID:(DE-HGF)0110$$2StatID$$aWoS$$bScience Citation Index 000009027 915__ $$0StatID:(DE-HGF)0111$$2StatID$$aWoS$$bScience Citation Index Expanded 000009027 915__ $$0StatID:(DE-HGF)0150$$2StatID$$aDBCoverage$$bWeb of Science Core Collection 000009027 915__ $$0StatID:(DE-HGF)0199$$2StatID$$aDBCoverage$$bThomson Reuters Master Journal List 000009027 915__ $$0StatID:(DE-HGF)0200$$2StatID$$aDBCoverage$$bSCOPUS 000009027 915__ $$0StatID:(DE-HGF)0300$$2StatID$$aDBCoverage$$bMedline 000009027 915__ $$0StatID:(DE-HGF)0310$$2StatID$$aDBCoverage$$bNCBI Molecular Biology Database 000009027 915__ $$0StatID:(DE-HGF)0420$$2StatID$$aNationallizenz 000009027 915__ $$0StatID:(DE-HGF)1030$$2StatID$$aDBCoverage$$bCurrent Contents - Life Sciences 000009027 915__ $$0StatID:(DE-HGF)1050$$2StatID$$aDBCoverage$$bBIOSIS Previews 000009027 915__ $$0StatID:(DE-HGF)1060$$2StatID$$aDBCoverage$$bCurrent Contents - Agriculture, Biology and Environmental Sciences 000009027 9141_ $$y2012 000009027 9131_ $$0G:(DE-Juel1)FUEK407$$1G:(DE-HGF)POF2-240$$2G:(DE-HGF)POF2-200$$aDE-HGF$$bErde und Umwelt$$kP24$$lTerrestrische Umwelt$$vTerrestrische Umwelt$$x0 000009027 9132_ $$0G:(DE-HGF)POF3-582$$1G:(DE-HGF)POF3-580$$2G:(DE-HGF)POF3-500$$aDE-HGF$$bKey Technologies$$lKey Technologies for the Bioeconomy$$vPlant Science$$x0 000009027 9201_ $$0I:(DE-Juel1)IBG-2-20101118$$gIBG$$kIBG-2$$lPflanzenwissenschaften$$x1 000009027 970__ $$aVDB:(DE-Juel1)118405 000009027 980__ $$aVDB 000009027 980__ $$aConvertedRecord 000009027 980__ $$ajournal 000009027 980__ $$aI:(DE-Juel1)IBG-2-20101118 000009027 980__ $$aUNRESTRICTED