Glockling, S L and Serpell, L C (2010) A new species of aplanosporic Haptoglossa, H. beakesii, with vesiculate spore release. Botany, 88 (1). pp. 93-101. ISSN 1916-2790

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Abstract

A new species of Haptoglossa, Haptoglossa beakesii sp. nov., a nematode parasite found in a sample of compost and rabbit dung at the University of Sussex campus, is described. The species, which infects nematodes of the genus Rhabditis, is unusual because it releases non-motile spores into a retaining vesicle. Aspects of the development and reproduction of the species are illustrated with light microscopy and transmission electron microscopy (TEM). TEM revealed a typical multinucleate thallus which cleaved into un-walled aplanospore initials. Each aplanospore contained a central nucleus closely surrounded by mitochondria and with peripheral dense body vesicles (DBV) and distinctive, layered, encystment vesicles. Aplanospores were expelled into a fine vesicle which later broke down to release cysts. Cysts germinated to produce infective gun cells.

Item Type:	Article
Schools and Departments:	School of Life Sciences > Biochemistry
Depositing User:	Sally Lorna Glockling
Date Deposited:	06 Feb 2012 21:09
Last Modified:	08 Jun 2012 14:57
URI:	http://sro.sussex.ac.uk/id/eprint/29849

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