Ballhorn lab




allhorn D.J., Kautz S., Laumann J.M. (2015) Herbivore damage induces a transgenerational increase of cyanogenesis in wild lima bean (Phaseolus lunatus). Chemoecology DOI 10.1007/s00049-015-0201-x.


allhorn et al._Chemoecology

Godschalx A.L., Schädler M., Trisel J.A., Balkan M.A., Ballhorn D.J. (2015) Rhizobia reduce indirect defense of lima bean (Phaseolus lunatus): less extrafloral nectar and fewer ants. Ecology 96:348-354. Godschalx et al. 2015 Ecology

Blue E., Kay J., Younginger B., Ballhorn D.J. (2015) Differential effects of type and quantity of leaf damage on growth, reproduction and denfese of lima bean (Phaseolus lunatus, L.) Plant Biol 17:712-719. Blue et al. 2015 Plant Biol

Ballhorn D.J. (2015) Primings seeds for increased beta-glucosidase activity in progeny plant, by contacting parent plant with exogenous jasmonic acid, maturing seeds of parent plant, and harvesting seeds. Patent number WO2015054541-A1; Patent Assignee: UNIVE PORTLAND STATE; Inventor(s) Ballhorn D.J.


Kautz S., Trisel J.A., Ballhorn D.J. (2014) Jasmonic acid enhances plant cyanogenesis and resistance to herbivory in lima bean. J Chem Ecol 40:1186-1196. Kautz et al. 2014 JChemEcol

Ballhorn D.J., Younginger B., Kautz S. (2014) Aboveground pathogens inhibit belowground rhizobia and mycorrhizal fungi in Phaseolus vulgaris. BMC Plant Biol 14:321. Ballhorn et al 2014_BMCPlantBiol

Ballhorn D.J.Godschalx A.L., Smart S.M., Kautz S, Schädler M. (2014) Chemical defense lowers plant competitiveness. Oecologia 176:811-824. Ballhorn et al. 2014_Oecologia

Ballhorn D.J., Elias J.D. (2014) Salinity-mediated cyanogenesis in white clover affects trophic interactions. Ann Bot 114:357-366. Ballhorn & Elias 2014_AnnBot

Ballhorn D.J., Kay J., Kautz S. (2014) Quantitative effects of leaf area removal on indirect defense of lima bean (Phaseolus lunatus) in nature. J Chem Ecol 40:294-296 Ballhorn et al. 2014_JChemEcol


Ballhorn D.J., Godschalx A.L., Kautz S. (2013) Co-variation of chemical and mechanical defenses in lima bean (Phaseolus lunatus L.). J Chem Ecol 39:413-417. Ballhorn et al. J Chem Ecol_2013

Ballhorn D.J., Kautz S. & Heil M. (2013) Distance and sex determine host plant choice by herbivorous beetles. PLoS ONE 8(2):e55602. Ballhorn et al. PLoS ONE_2013

Ballhorn D.J., Kautz S. & Schädler M. (2013) Induced plant defense via volatile production is dependent on rhizobial symbiosis. Oecologia 172:833-846. Ballhorn et al. Oecologia_2013

Ballhorn D.J., Kautz S. (2013) How useful are olfactometer experiments in chemical ecology research? Comm Int Biol 6:e24787. Ballhorn & Kautz_CommIntBiol2013

Millar J.A., Ballhorn D.J. (2013) Effect of mycorrhizal colonization and light limitation on growth and reproduction of lima bean (Phaseolus lunatus L.). J App Bot Food Qual 86:172-179. Millar & Ballhorn 2013

De Roissart A., de la Pena E, Van Oyen L., Van Leeuwen T., Ballhorn D.J., Bonte D. (2013) The presence of root-feeding nematodes - Not AMF - Affects an herbivore dispersal strategy. Acta Oecolog 52:38-44. De Roissart et al. 2013


Wybouw N., Balabanidou V., Ballhorn D.J., Dermauw W., Grbic M., Vontas J., Van Leeuwen T. (2012) A horizontally transferrd cyanase gene in the spider mite Tetranychus urticae is involved in cyanate metabolism and is differentially expressed upon host plant change. I Biochem Mol Biol. online first

Kautz S., Ballhorn D.J., Kroiss J., Pauls S.U., Moreau, C.S., Eilmus, S., Strohm, E & Heil M. (2012) The acacia-Pseudomyrmex interaction - Mutualists monopolize hosts while parasites join to exploit. PLoS ONE 7(5): e37691. Kautz et al. 2012_PLoS ONE

Millar J.A., Ballhorn D.J. (2012) Effects of light limitation on plant-rhizobia and plant-mycorrhiza interactions. Anthos 4(2).


Ballhorn D.J., Reisdorff C., & Pfanz H. (2011) Quantitative effects of enhanced CO2 on jasmonic acid induced plant volatiles of lima bean (Phaseolus lunatus L.). J Appl Bot Food Qual 84: 65-71.                                    Ballhorn et al. 2011_J Appl Bot Food Qual

Ballhorn D.J. (2011) Constraints of simultaneous resistance to a fungal pathogen and an insect herbivore in lima bean (Phaseolus lunatus L.). J Chem Ecol 37:141-144. Ballhorn 2011_J Chem Ecol

Thamer S., Schädler M., Bonte D. & Ballhorn D.J. (2011) Dual benefit from a belowground symbiosis: nitrogen fixing rhizobia promote growth and defense against a specialist herbivore in a cyanogenic plant. Plant & Soil 341: 209-219. Thamer et al. 2011_P&S

Ballhorn D.J., Kautz S., Jensen M., Schmitt I., Heil M. & Hegeman A.D. (2011) Genetic and environmental effects on plant defences against herbivores. J Ecol 99: 313-326. Ballhorn et al. 2011_J Ecol

Ballhorn D.J., Schmitt I., Fankhauser J.D., Katagiri F. & Pfanz H. (2011) CO2 mediated changes of plant traits and their effects on herbivores are determined by leaf age. Ecol Entomol 36:1-13.                                     Ballhorn et al. 2011_Ecol Entomol

Ballhorn D.J. (2011) Nuts and seeds in health and disease prevention. Book chapter: Cyanogenic glycosides in nuts and seeds. V.R. Preedy, R.R. Watson & V. Patel (eds.), Academic Press, Elsevier Science and Technology, MO, USA. Ballhorn 2011_Nuts & Seeds


Bonte D., de Roissart A., Vandegehuchte M., Ballhorn D.J. & de la Peña E. (2010) Local adaptation of aboveground herbivores towards plant phenotypes induced by biotic belowground agents. PLoS ONE e11174. Bonte et al. 2010_PLoS ONE

Ballhorn D.J., Kautz S. & Lieberei R. (2010) How generalist and specialist herbivores respond to various cyanogenic plant features. Entomol Exp Appl 134: 245-259. Ballhorn et al. 2010_Entomol Exp Appl

Ballhorn D.J., Pietrowski A. & Lieberei R. (2010) Direct trade-off between cyanogenesis and resistance to a fungal pathogen in lima bean (Phaseolus lunatus L.). J Ecol 98: 226-236 (+ Cover). Ballhorn et al. 2010_J Ecol


Kautz S., Pauls S.U., Ballhorn D.J., Lumbsch H.T., Heil M. (2009) Polygynous supercolonies of the acacia-ant Pseudomyrmex peperi, an inferior colony founder. Mol Ecol 18: 5180-5194. Kautz et al. 2009_Mol Ecol

Yi H.S., Heil M., Adame-Alvarez, R.M., Ballhorn D.J. & Ryu C.M. (2009) Airborne induction and priming of plant defenses against a bacterial pathogen. Plant Physiol 151: 2152-2161. Yi et al. 2009

Ballhorn D.J., Kautz S., Heil M. & Hegeman A.D. (2009) Analyzing plant defenses in nature. PS & B 4: 743-745. Ballhorn et al. 2009_PS&B 

Ballhorn D.J., Kautz S., Heil M. & Hegeman A.D. (2009) Cyanogenesis of wild lima bean (Phaseolus lunatus L.) is an efficient and direct defense in nature. PLoS ONE e5450. Ballhorn et al. 2009_PLoS ONE 

Ballhorn D.J., Kautz S. & Rakotoarivelo F.P. (2009) Quantitative variability of cyanogenesis in Cathariostachys madagascariensis ― the main food plant of bamboo lemurs in southeastern Madagascar. Am J Primatol 71: 305-315. Ballhorn et al. 2009_Am J Primatol

Kautz S., Schmid V.S., Trindl A., Heinze J., Ballhorn D.J. & Heil M. (2009) Isolation and characterization of microsatellite loci in the plant-ant Pseudomyrmex ferrugineus (Formicidae: Pseudomyrmecinae) and cross-testing for two congeneric species. Mol Ecol Res 9: 1016-1019. Kautz et al. 2009_Mol Ecol Res


Ale-Agha N., Jensen M., Brassmann M., Kautz S., Eilmus S. & Ballhorn D.J. (2008) Rare or remarkable microfungi from Oaxaca (South Mexico) Part II. Comm Agr Appl Biol Sci 73: 147-155.

Ballhorn D.J., Schiwy S., Jensen M. & Heil M. (2008) Quantitative variability of direct chemical defense in primary and secondary leaves of lima bean (Phaseolus lunatus) and consequences for a natural herbivore. J Chem Ecol 34: 1298-1301. Ballhorn et al. 2008_J Chem Ecol 

Ballhorn D.J., Kautz S., Lion U. & Heil M. (2008) Qualitative variability of lima bean’s VOC bouquets and its consequences on plant-plant communication. PS & B 3:1005-1007. Ballhorn et al. 2008_PS&B

Ballhorn D.J., Kautz S., Lion U. & Heil M. (2008) Trade-offs between direct and indirect defences of lima bean (Phaseolus lunatus). J Ecol 96: 971-980 (+ Cover). Ballhorn et al. 2008_J Ecol


Ballhorn D.J., Pietrowski A., Heil M. & Lieberei R. (2007) Quantitative effects of cyanogenesis on an adapted herbivore. J Chem Ecol 33: 2195-2208. Ballhorn et al. 2007_J Chem Ecol


Ballhorn D.J. & Lieberei R. (2006) Oviposition choice of Mexican bean beetle Epilachna varivestis depends on host plant cyanogenic capacity. J Chem Ecol 32: 1861-1865. Ballhorn & Lieberei 2006

Ballhorn D.J., Heil M. & Lieberei R. (2006) Phenotypic plasticity of cyanogenesis in lima bean Phaseolus lunatus— Activity and activation of β-glucosidase. J Chem Ecol 32: 261-275. Ballhorn et al. 2006


Ballhorn D.J., Lieberei R. & Ganzhorn J.U. (2005) Plant cyanogenesis of Phaseolus lunatus and its relevance for herbivore-plant interaction: The importance of quantitative data. J Chem Ecol 31: 1445-1473.               Ballhorn et al. 2005