Fungalpedia – Note 430, Palaeospora

 

Palaeospora Oehl, Palenz., Sánchez-Castro & G.A. Silvav

Citation when using this data: Tibpromma et al. 2024 (in prep.) – Fungalpedia, Glomeromycota.

Index FungorumFacesoffungi, MycoBankGenBank, Fig. 1          

Classification: Archaeosporaceae, Archaeosporales, Incertae sedis, Glomeromycetes, Glomeromycotina, Glomeromycota, Fungi.

In a survey of Switzerland’s natural and agricultural sites, Oehl et al. (2015) introduced a new genus Palaeospora with Palaeospora spainiae as the type species based on morphological and molecular analyses (SSU, ITS, LSU). Palaeospora differs from Archaeospora and Otospora owing to their triple-walled spores. Furthermore, the genus is distinguishable from Acaulospora due to the lack of beads on the inner wall and varies from Ambispora due to the lack of a bi-walled pedicel as ramification from the hyphal saccule neck (Oehl et al. 2015).  In 2019, Schüßler & Walker (2019) analyzed all available Archaeospora sequence data and found that sequences of Palaeospora spatial clustered within Archaeospora and synonymized Palaeospora under Archaeospora, with P. spine is transferred to Archaeospora as A. spainiae (Schüßler & Walker 2019). 

Type species: Palaeospora spainiae Oehl, Palenz., Sánchez-Castro & G.A. Silva 

Current name: Archaeospora spainiae (Oehl, Palenz., Sánchez-Castro & G.A. Silva) A. Schüßler & C. Walker

Other accepted species: Species Fungorum – search Archaeospora

 

Figure 1 – Archaeospora spainiaea Spore. b, c Crushed and uncrushed spores. Hyphae. Scale bars: a = 75 μm, b, c = 50 μm, d = 150 μm. Redrawn from Oehl et al. (2015).

 

References

Oehl F, Sánchez-Castro I, Palenzuela J, da Silva GA. 2015 – Palaeospora spainii, a new arbuscular mycorrhizal fungus from Swiss agricultural soils. Nova Hedwigia 101(1–2), 89–102. 

Schüßler A, Walker C. 2019 – Archaeospora ecuadoriana sp. nov. from a mountainous biodiversity hotspot area in Ecuador, and transfer of Palaeospora spainiae to Archaeospora, as A. spainiae comb. nov. Mycorrhiza 29(5), 435–443.

 

Entry by

Priyashantha AKH, Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand 

 

(Edited by Saowaluck Tibpromma, Samaneh Chaharmiri-Dokhaharani, & Achala R. Rathnayaka)

 

Published online 2 December 2024