Morphology and ultrastructure of the convoluted gland in the ant Dinoponera australis (Hymenoptera: Formicidae) |
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| Institution: | 1. Institute of Environmental and Interdisciplinary Science, Department of Biology, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario K1S 5B6, Canada;2. Nature Conservancy of Canada, 245 Eglinton Ave East, Toronto, Ontario M4P 3J1, Canada;3. Cornell Lab of Ornithology, Department of Natural Resources and the Environment, Cornell University, 159 Sapsucker Woods Rd., Ithaca, NY 14850, USA;1. Genecology Research Centre, University of The Sunshine Coast, Maroochydore DC 4558, Queensland, Australia;2. School of Medical Science, Griffith Health Institute, Griffith University, Gold Coast 4222, Australia;3. Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA 30602, USA;4. Department of Biochemistry, Molecular Biology, Entomology & Plant Pathology, Mississippi State University, MS 39762, USA;5. Forest Industries Research Centre, University of the Sunshine Coast, Maroochydore DC 4558, Queensland, Australia |
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| Abstract: | The morphology and fine structure of the convoluted gland inside the venom reservoir of the ponerine ant Dinoponera australis (Hymenoptera: Formicidae) are described. The cells of the convoluted gland can be divided into 3 major groups: (1) epithelial cells, (2) glandular cells with end apparatus secreting into the tubule inside the convoluted gland, and (3) glandular cells with end apparatus secreting directly into the venom reservoir. A fourth group of cells belonging to the venom gland of this ant is also discussed as (4) secretory cells of the free tubule (not a part of the convoluted gland). The epithelial cells in the convoluted gland do not have many organelles. Most cells of group 3 are characterized by numerous mitochondria. In some of these cells, the mitochondria possess tubular cristae. Tubule cells of group 2 inside the convoluted gland, possess little rough endoplasmic reticulum when compared with cells of group 4, situated in the free tubule. |
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