Event Title

The Effect of Drought Stress and Herbivory on VOC Emission in Phaseolus lunatus (Lima Bean): a Qualitative Analysis

Presenter Information

Peyton Klembara

Faculty Advisor

Dr. Alissa Packer

Start Date

24-4-2018 5:00 PM

End Date

24-4-2018 6:00 PM

Description

Herbivore-induced volatile organic compounds are an inducible plant defense that serves to attract beneficial insects to a plant as a form of protection from herbivory. VOC emission serves to attract beneficial insects, herbivore's enemies, to the plant, thereby minimizing future damage.The levels of VOC emission are affected by both abiotic and biotic stressors, yet little is known about how they influence VOCs in combination with one another. In this research, we examined how VOC emissions of Phaseolus lunatus plants were influenced by drought and simulated herbivory using a fully factoria design. SPME and GCMS were used to analyze the presence of VOCs and their relative abundance in the sample. We conclude that the emission of VOCs as an indirect defense is costly to the plant, and they will invest less in this defense when they are experiencing other and more severe types of environmental stress in combination with herbivore damage.

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Apr 24th, 5:00 PM Apr 24th, 6:00 PM

The Effect of Drought Stress and Herbivory on VOC Emission in Phaseolus lunatus (Lima Bean): a Qualitative Analysis

Herbivore-induced volatile organic compounds are an inducible plant defense that serves to attract beneficial insects to a plant as a form of protection from herbivory. VOC emission serves to attract beneficial insects, herbivore's enemies, to the plant, thereby minimizing future damage.The levels of VOC emission are affected by both abiotic and biotic stressors, yet little is known about how they influence VOCs in combination with one another. In this research, we examined how VOC emissions of Phaseolus lunatus plants were influenced by drought and simulated herbivory using a fully factoria design. SPME and GCMS were used to analyze the presence of VOCs and their relative abundance in the sample. We conclude that the emission of VOCs as an indirect defense is costly to the plant, and they will invest less in this defense when they are experiencing other and more severe types of environmental stress in combination with herbivore damage.