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Full-Text Articles in Life Sciences

A Survey Of Chemical Elicitors And Their Effectiveness As Promoters Of Plant Defense Against Herbivory By Spodoptera Frugiperda (Smith) (Lepidoptera: Noctuidae), John Gordy Jan 2013

A Survey Of Chemical Elicitors And Their Effectiveness As Promoters Of Plant Defense Against Herbivory By Spodoptera Frugiperda (Smith) (Lepidoptera: Noctuidae), John Gordy

LSU Master's Theses

Insect herbivores can induce a range of plant defenses. Signal pathways can be activated that result in the production of secondary metabolites. Many of these compounds can reduce insect fitness, deter feeding, and attract beneficial insects. Additionally, organic and inorganic chemicals applied as a foliar spray or soil drench can activate these plant responses. Azelaic acid, benzothiadiazole (BTH), gibberellic acid (GA3), harpin, and jasmonic acid (JA) are thought to mediate plant response to pathogens and herbivores. The effects of these elicitors on the induction of plant defenses were determined by measuring the weight gain of fall armyworm (FAW), Spodoptera frugiperda ...


Effects Of Caste On The Constitutive And Induced Expression Of Genes Associated With Immunity And Detoxification In Formosan Subterranean Termites, Dawn M. Simms Jan 2013

Effects Of Caste On The Constitutive And Induced Expression Of Genes Associated With Immunity And Detoxification In Formosan Subterranean Termites, Dawn M. Simms

LSU Master's Theses

Simms, Dawn M., B.S., Louisiana State University, 1997 Master of Science, Spring Commencement, 2013 Major: Entomology Effects of Caste on the Constitutive and Induced Expression of Genes Associated with Immunity and Detoxification in Formosan Subterranean Termites Thesis directed by Associate Professor Claudia Husseneder Pages in thesis, 74. Words in abstract, 268. ABSTRACT Formosan subterranean termites (FSTs) live in dense populations and nest conditions that are conducive to microbial growth. Furthermore, termites are exposed to potential toxic substances in the soil and in their lignocellulose diet. These characteristics, in combination with the specialized caste system of FSTs, make this termite ...