Chemical Ecology of Defense Compounds in Anasa Species (Heteroptera: Coreidae) and Volatile Attractants for Diabrotica Species (Coleoptera: Chrysomelidae) (Attractants, Glands, Corn Rootworms, Electron Microscopy, Squash Bug)

Two separate investigations of insect chemical ecology were conducted. The first study elucidated the ultrastructure of the metathoracic scent glands of Anasa tristis and the chemical composition of secretions from the metathoracic glands of A. tristis and A. armigera and the abdominal glands of A. tristis. Lateral glands from A. tristis consist of secretory cells and duct cells, surrounding the central lumen of a gland tubule. The secretory cell possesses an electron dense collecting area and a microvillar network that projects into the cytoplasm. The secretory cell has numerous mitochondria, grouped glycogen deposits, free ribosomes, and tracheoles, suggesting a high metabolic activity. Multivesicular bodies (MVB) were frequently found adjacent to the end-apparatus (microvilli and collecting area) and may function in secretory or autolytic activities. The duct cells surround cuticular-lined ductules and the lumen of the gland tubule. Septate desomosomes and membranous folds are evident at the junctions of duct cells and secretory cells and between duct cells and the lumen of the gland tubule.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Entomology

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2014

Author dc:creator

• Lampman, Richard Lee

• Biology, Entomology

Identifier

(UMI)AAI8623345

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/71100