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Seidl-Adams I, Richter A, Boomer KB, Yoshinaga N, Degenhardt J, Tumlinson JH (2015) Emission of herbivore elicitor-induced sesquiterpenes is regulated by stomatal aperture in maize (Zea mays) seedlings. Plant Cell and Environmental 38: 23-34

Richter A, Seidl-Adams I, Köllner TG, Schaff C, Tumlinson JH, Degenhardt J (2015) A small, differentially regulated family of farnesyl diphosphate  synthases in maize (Zea mays) provides farnesyl diphosphate for the  biosynthesis of herbivore-induced sesquiterpenes. Planta 241: 1351-1361

Külheim C, Padovan A, Hefer C, Krause S, Köllner TG, Myburg AA, Degenhardt J, Foley WJ (2015) The Eucalyptus terpene synthase gene family. BMC Genomics 16: 450-468

Vattekkatte A, Gatto N, Köllner TG, Degenhardt J, Gershenzon J, Boland W (2015) Substrate geometry controls the cyclization cascade in multiproduct terpene synthases from Zea mays. Org Biomol Chem 13: 6021-6030

Padovan A, Patel HR, Chuah A, Huttley GA, Krause ST, Degenhardt J, Foley WJ, Kühlheim C (2015) Transcriptome Sequencing of Two Phenotypic Mosaic Eucalyptus Trees Reveals Large Scale Transcriptome Re-Modelling. PLOS ONE 10(5) DOI: 10.1371

Gatto N, Vattekkatte A, Köllner TG, Degenhardt J, Gershenzon J, Boland W (2015) Isotope sensitive branching and kinetic isotope effects to analyse multiproduct terpenoid synthases from Zea mays. Chem Commun 51: 3797-3800

Krauss GJ, Nies DH (2015) Ecological Biochemistry - Environmental and Interspecies Interactions. Preiss S, Degenhardt J, Gershenzon J. Plant - Animal Dialogues. Wiley-VCH Verlag (ISBN: 978-3-527-31650-2) 313-330


Piechulla B, Degenhardt J (2014) The emerging importance of microbial volatile organic compounds. Plant, Cell and Environment 37: 811-



Köllner TG, Lenk C, Schnee C, Köpke S, Lindemann P, Gershenzon J, Degenhardt J (2013) Localization of sesquiterpene formation and emission in maize leaves after herbivore damage. BMC Plant Biology 13:15

Lima AS, Schimmel J, Lukas B, Novak J, Barroso JG, Figueiredo AC, Pedro LG, Degenhardt J, Trindade H (2013) Genomic characterization, molecular cloning and expression  analysis of two terpene synthases from Thymus caespititius (Lamiaceae). Planta 238: 191-204

Robert CAM, Erb M, Hiltpold I, Hibbard BE, Gaillard MDP, Bilat J, Degenhardt, J, Cambet-Petit-Jean X, Turlings TCJ, Zwahlen C (2013) Genetically engineered maize plants reveal distinct costs and benefits of constitutive volatile emissions in the field. Plant Biotechnology J 11: 628-639

Krause ST, Köllner TG, Asbach J, Degenhardt J (2013) Stereochemical mechanism of two sabinene hydrate synthases forming antipodal monoterpenes in thyme (Thymus vulgaris). Arch Biochem Biophys 528: 112-121


Irmisch S, Krause ST, Kunert G, Gershenzon J, Degenhardt J, Köllner TG (2012) The organ-specific expression of terpene synthase genes contributes to the terpene hydrocarbon composition of chamomile essential oils. BMC Plant Biology 12: 84

Lenk C, Köllner TG, Erb M, Degenhardt J (2012) Two enzymes responsible for the formation of herbivore-induced  volatiles of maize, the methyltransferase AAMT1 and the terpene  synthase TPS23, are regulated by a similar signal transduction pathway. Entomologia Experimentalis et Applicata 144: 86-92

Zhuang XF, Köllner TG, Zhao N, Li GL, Jiang YF, Zhu LC, Ma JX, Degenhardt J, Chen F (2012) Dynamic evolution of herbivore-induced sesquiterpene biosynthesis in sorghum and related grass crops. Plant J 69: 70-80


Fontana A, Held M, Fantaye CA, Turlings TC, Degenhardt J, Gershenzon J (2011) Attractiveness of Constitutive and Herbivore-Induced Sesquiterpene Blends of Maize to the Parasitic Wasp Cotesia marginiventris (Cresson) J. Chemical Ecology 37:582-591

Erb M, Köllner TG, Degenhardt J, Zwahlen C, Hibbard BE, Turlings TCJ (2011) The role of abscisic acid and water stress in root herbivore-induced leaf resistance. New Phytologist 189: 308-320


Padovan A, Keszei A, Köllner T, Degenhardt J, Foley WJ (2010) The molecular basis of host plant selection in Melaleuca quinquenervia by a successful biological control agent. Phytochemistry, 71:1237-1244

Keszei A, Brubaker CL, Carter R, Köllner T, Degenhardt J, Foley WJ (2010) Functional and evolutionary relationships between terpene synthases from Australian Myrtaceae. Phytochemistry, 71: 844-852

Köllner TG, Lenk C, Zhao N, Seidl-Adams I, Gershenzon J, Chen F and Degenhardt J (2010) Herbivore-induced SABATH methyltransferases of maize that methylate anthranilic acid using S-adenosyl-L-methionine. Plant Physiology, 153: 1795-1807

Crocoll C, Asbach J, Novak J, Gershenzon J und Degenhardt J (2010) Terpene synthases of oregano (Origanum vulgare L.) and their roles in the pathway and regulation of terpene biosynthesis Plant Molecular Biology 73:582-590

Chatzopoulou FM, Makris AM, Argiriou A, Degenhardt J, Kanellis AK (2010) EST analysis and annotation of transcripts derived from a trichome – specific cDNA library from Salvia fruticosa. Plant Cell Rep 29 :523-534


 Degenhardt J (2009) Indirect Defense Responses to Herbivory in Grasses. Plant Physiol. 149: 96-102


 Chatzopoulou FM, Makris AM, Degenhardt J, Kanelis AK (2008) Annotation and analysis of ESTs from leaves' trichomes of Salvia fruticosa. Planta Medica 74:1119-1128

Novak J, Lukas B, Bolzer K, Grausgruber-Gröger S, Degenhardt J (2008) Identification and characterization of simple sequence repeat markers from a glandular Origanum vulgare expressed sequence tag. Molecular Ecology Resources 8:599-601

Erb M; Ton J; Degenhardt J; Turlings TCJ (2008) Interactions between arthropod-induced aboveground and belowground defenses in plants. Plant Physiology 146:867-874

Köllner TG; Schnee C; Li SH; Svatoš A; Schneider B; Gershenzon J; Degenhardt J (2008) Protonation of a neutral (S)-β-bisabolene intermediate is involved in S-beta-macrocarpene formation by the maize sesquiterpene synthases TPS6 and TPS11. Journal of Biological Chemistry 283:20779-20788

Köllner TG; Held M; Lenk C; Hiltpold I; Turlings TCJ; Gershenzon J; Degenhardt J (2008) A maize (E)-β-caryophyllene synthase implicated in indirect defense responses against herbivores is not expressed in most American maize varieties. The Plant Cell 20:482-494

Lin C; Shen B; Xu Z; Köllner TG; Degenhardt J; Dooner HK (2008) Characterization of the monoterpene synthase gene tps26, the ortholog of a gene induced by insect herbivory in maize. Plant Physiology 146:940-951

Yuan JS; Köllner TG; Wiggins G; Grant J; Degenhardt J; Chen F (2008) Molecular and genomic basis of volatile-mediated indirect defense against insects in rice. Plant Journal 55:491-503


 Günnewich N; Page JE; Köllner TG; Degenhardt J; Kutchan TM (2007) Functional expression and characterization of trichome-specific (-)-limonene synthase and (+)-α-pinene synthase from Cannabis sativa. Natural Product Communications 2:223-232

Kampranis SC; Ioannidis D; Purvis A; Mahrez W; Ninga E; Katerelos NA; Anssour S; Dunwell JM; Degenhardt J; Makris AM; Goodenough PW; Johnson C (2007) Rational Conversion of Substrate and Product Specificity in a Salvia Monoterpene Synthase: Structural Insights into the Evolution of Terpene Synthase Function. The Plant Cell 19:1994-2005


 Köllner TG; O'Maille PE; Gatto N; Boland W; Gershenzon J; Degenhardt J (2006) Two pockets in the active site of maize sesquiterpene synthase TPS4 carry out sequential parts of the reaction scheme resulting in multiple products. Archives of Biochemistry & Biophysics 448:83-92

Schnee C; Köllner TG; Held M; Turlings TCJ; Gershenzon J; Degenhardt J (2006) The products of a single maize sesquiterpene synthase form a volatile defense signal that attracts natural enemies of maize herbivores. Proceedings of the National Academy of Sciences of the United States of America (PNAS) 103:1129-1134


 Rasmann S; Köllner TG; Degenhardt J; Hiltpold I; Toepfer S; Kuhlmann U; Gershenzon J; Turlings TCJ (2005) Recruitment of entomopathogenic nematodes by insect-damaged maize roots. Nature 434:732-737


 Hoballah ME; Köllner TG; Degenhardt J; Turlings TCJ (2004) Costs of induced volatile production in maize. Oikos 105:168-180

Köllner TG; Schnee C; Gershenzon J; Degenhardt J (2004) The variability of sesquiterpenes emitted from two Zea mays cultivars is controlled by allelic variation of two terpene synthase genes encoding stereoselective multiple product enzymes. The Plant Cell 16:1115-1131

Köllner TG; Schnee C; Gershenzon J; Degenhardt J (2004) The sesquiterpene hydrocarbons of maize (Zea mays) form five groups with distinct developmental and organ-specific distributions. Phytochemistry 65:1895-1902


 Degenhardt J; Gershenzon J (2003) Terpenoids. In: Brian T; Murphy DJ; Murray BG (Eds.): Encyclopedia of Applied Plant Sciences. Vol. 1. Elsevier, Amsterdam. pp. 500-504

Degenhardt J; Gershenzon J (2003) Genetics of crop improvement: Genetic modification of secondary metabolism terpenoids. In: Thomas B; Murphy DJ; Murray BG (Eds.): Encyclopedia of Applied Plant Sciences. Elsevier Science, London. pp. 500-504

Degenhardt J; Gershenzon J; Baldwin IT; Kessler A (2003) Attracting friends to feast on foes: engineering terpene emission to make crop plants more attractive to herbivore enemies. Current Opinion in Biotechnology 14:169-176

Köllner TG; Schnee C; Gershenzon J; Degenhardt J (2003) Terpene formation in maize and its ecological and evolutionary significance. Chemicke Listy 97:319-327