Skip to Main Content
Nosema scripta N. Sp. (Microsporida: Nosematidae), a Microsporidian Parasite of the Cottonwood Leaf Beetle, Chrysomela scripta (Coleoptera: Chrysomelidae)1Author(s): Leah S. Bauer; Stuart H. Pankratz
Source: J. EuK. Microbiol. Vol. 40 no. 2.:p. 135-141. (1993)
Publication Series: Scientific Journal (JRNL)
Station: North Central Research Station
PDF: Download Publication (1005.37 KB)
DescriptionNosema scripta (Microsporida: Nosematidae), a new species of microsporidian parasite, is described from the cottonwood leaf beetle, Chrysomela scripta F. (Coleoptera: Chrysomelidae), in North America. Studies using light and electron microscopy reveal that this species completes its life cycle in direct contact with the cytoplasm of the cells within the fat body, midgut, hindgut, muscles, central nerve cord, Malpighian tubules, tracheal end cells, and ovaries. The microsporidium is monomorphic, all life stages are diplokaryotic, and spores develop from disporous sporonts. The mature spores are broadly oval and measure 4.2 0.10 x 3.4 0.04 um. Spores contain a tubular polar filament that is arranged peripherally in a single layer of 13-15 coils. Both horizontal transmission and vertical transmission have been demonstrated for this microsporidium in C. scripta in the laboratory. The Colorado potato beetle, Leptinotarsa decemlineata (Say), was susceptible to infection with pathogen in cross-infectivity studies.
- Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat.
- During the capture process some typographical errors may occur.
- Please contact Sharon Hobrla, firstname.lastname@example.org if you notice any errors which make this publication unusable.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationBauer, Leah S.; Pankratz, Stuart H. 1993. Nosema scripta N. Sp. (Microsporida: Nosematidae), a Microsporidian Parasite of the Cottonwood Leaf Beetle, Chrysomela scripta (Coleoptera: Chrysomelidae)1. J. EuK. Microbiol. Vol. 40 no. 2.:p. 135-141. (1993)
KeywordsChronic disease, cross-infectivity, Lptinotarsa decemlineata, microsporidian ultrastucture, Populus, transovarial transmision.
- Cottonwood Leaf Beetle (Coleoptera: Chrysomelidae) Larval Performance on Eight Populus Clones
- An Artificial Diet for Cottonwood and Imported Williow leaf Beetles (Coleoptera: Chrysomelidae) and Comparative Performance on Poplar Foliage1,2
- Field transmission of a microsporidian pathogen of gypsy moth, Lymantria dispar
XML: View XML