, Volume 14, Issue 3, pp 213–219

Spore ontogeny of the arbuscular mycorrhizal fungus Archaeospora trappei (Ames & Linderman) Morton & Redecker (Archaeosporaceae)

Short Note

DOI: 10.1007/s00572-004-0300-y

Cite this article as:
Hafeel, K.M. Mycorrhiza (2004) 14: 213. doi:10.1007/s00572-004-0300-y


Arbuscular mycorrhizal (AM) fungi in the genus Archaeospora (family Archaeosporaceae) contain both monomorphic and dimorphic species. The synanamorphism is often hard to discern without ontogenetic observations. Here, the spore ontogeny of Ar. trappei is reported from single species pot culture studies. The sporogenous hypha swelled up to a terminal sporiferous saccule and produced a lateral spore primordium on its neck. The saccule expanded fully before the spore primordium emerged. The saccule transferred its contents into the expanding spore and collapsed while wall differentiation continued inside the spore. The spore wall of Ar. trappei differentiated sequentially, in discrete steps, as in Acaulosporaceae members. In contrast, Ar. trappei produced a simplified spore wall in which the components differed in chemical and physical characteristics from those of the Acaulosporaceae members. Ontogenetic studies confirmed Ar. trappei to be monomorphic and producing acaulosporoid spores. The fungus is a new record to New Zealand.


AM fungiTaxonomySpore ontogenyArchaeosporaMyrtaceae

Copyright information

© Springer-Verlag 2004

Authors and Affiliations

  1. 1.School of Biological SciencesVictoria University of WellingtonWellingtonNew Zealand
  2. 2.School of Earth and Geographical Sciences, Faculty of Natural and Agricultural SciencesThe University of Western AustraliaCrawley Australia