Cetraspora Oehl, FA Souza & Sieverd.
| Term | Description |
|---|---|
| Etymology: | Latin, cetra = “light shield” and spora = “spore” |
| Description: | Spores with or without ornamentations. Spores consist of a bilayered spore wall and two bilayered germinal inner walls. Germ tubes arise from a persistant, plate-like germination shield that is always associated with the innermost germinal wall. Thin-walled auxiliary cells with smooth to knobby surfaces, are produced on hyphae in the soil near the root surface. |
| Type species: | basionym = _S. gilmorei Trappe & Gerd. |
Spore Development
Spore development is like that depicted for all species that once were classified in the genus Scutellospora. This genus was separated morphologically by some nebulous characteristics of the germination shield (Oehl et al., 2008) which are not unique enough to define this group exclusively (a synapomorphy in phylogenetic terminology). Redecker et al. (2013) retained this genus exclusively because of highly supported clade divergence from other clades in Gigasporaceae.
Literature Cited
- Oehl, F., F.A. de Souza and E. Sieverding. 2008. Revision of Scutellospora and description of five new genera and three new families in the arbuscular mycorrhiza-forming Glomeromycetes. Mycotaxon 106:311-360.
- Redecker, D., A. Schüßler, H. Stockinger, S. Stürmer, J. Morton, and C. Walker. 2013. An evidence-based consensus for the classification of arbuscular mycorrhizal fungi (Glomeromycota). Mycorrhiza doi:10.1007/s00572-013-0486-y.