Septoglomus titan, a new fungus in the Glomeraceae (Glomeromycetes) from Bahia, Brazil

Abstract

A new fungus of the Glomeraceae found in the rhizosphere of Agave sisalana is described under the epithet Septoglomus titan. It forms large glomerospores, (243–)265 × 325(–400) μm in diameter. They generally are subglobose and have three spore wall layers: a semi-persistent short lived sub-hyaline to yellow-brown outer layer (0.5–1.4 μm thick), an adherent smooth light-yellow to orange-brown middle layer (2.5–5.1 μm), and a laminate smooth thick orange brown to dark red brown innermost layer (12.8–19.2 μm). Spore size and colors of the spore wall layers separate this species from other yellow-brown to dark-brown species.

Septoglomus jasnowskae and Septoglomus turnauae, two new species of arbuscular mycorrhizal fungi (Glomeromycota)

“…While the spore wall of S. turnauae comprises four layers (Figs. 14-14), that of S. altomontanum and S. constrictum consists of two layers, and the spore wall of S. furcatum and S. titan is 3-layered (http://www.zor.zut.edu.pl/Glomeromycota/; Trappe 1977;Błaszkowski et al 2013;Goto et al 2013;Palenzuela et al 2013). Septoglomus altomontanum and S. constrictum do not differentiate spore wall layers 2 and 4 of S. turnauae.…”

“…Goto & G.A. Silva also are dark-coloured (Błaszkowski et al 2013;Goto et al 2013;Palenzuela et al 2013;Symanczik et al 2014). In all the Septoglomus spp.…”

Glomus herrerae, a new sporocarpic species of Glomeromycetes from Cuba

“…Many new species with glomoid spore development was described during 90's years, exclusively based on available data sets, but this was considered a very difficult task based on limited morphological characters available in glomoid species (Goto et al 2012a). In 2001, new evidences based on molecular level, showed a larger diversification on AMF evolution, mostly in glomoid species (Schwarzott et al 2001), culminating in the proposition of Glomeromycota phylum (Schuessler et al 2001).…”

Diversity of Brazilian Fungi

“…Among these, more than 20 were originally described from material collected in Brazil (Goto et al 2011(Goto et al , 2013Mello et al 2012Mello et al , 2013Marinho et al 2014). Another significant change occurred in Zygomycota, disregarded for being polyphyletic (Hibbett et al 2007).…”

“…Among these publications, included or not in the database, we found some related to: Pucciniales (Carvalho Jr. & Hennen 2010, 2012Salazar-Yepes & Carvalho Jr. 2010a, b, 2012; conidial fungi, with new genera, species and records for Brasil Barbosa & Gusmão 2011;Izabel et al 2011;Cruz et al 2012;Almeida et al 2013;Barbosa et al 2013;Fiuza et al 2014;Monteiro & Gusmão 2013;Monteiro et al 2014a, b); Ingoldian fungi (Fiuza & Gusmão 2013aFiuza et al 2015), zoosporic fungi (Nascimento et al 2012;Jesus et al 2013), new species and records of Myxomycetes (Alves et al 2010;Bezerra et al , 2014Silva & Cavalcanti 2010;Costa et al 2011Costa et al , 2014Damasceno et al 2011;Silva & Cavalcanti 2012;Parente & Cavalcanti 2013;Cavalcanti et al 2014Cavalcanti et al , 2015, new species and records of Zygomycota (Santiago et al 2011a(Santiago et al , b, 2013Souza et al 2012Souza et al , 2014; new orders, families, genera, species, recombinations and review in Glomeromycota (Goto et al 2011(Goto et al , 2013Mello et al 2012Mello et al , 2013Oehl et al 2011a, b;Pontes et al 2013), including phylogenetic studies of Gigasporales . In Ascomycota: new genus and species of histeriaceous fungi , generic reviews of: Ascobolus and Saccobolus (Melo et ...…”