Pleosporales » Lindgomycetaceae

Lolia

Lolia Abdel-Aziz & Abdel-Wahab

Index Fungorum number: 518528

 

Saprobic on submerged decayed stem. Sexual morph: Ascomata solitary or aggregated in stroma, immersed to erumpent, uniloculate, globose to subglobose, sometimes with flattened base, glabrous, dark brown to black, coriaceous to sub-carbonaceous, with cylindrical ostiolar canals, with ostiolate papilla, usually stain the substrate purple. Peridium two-layered, comprising hyaline to yellow-brown, to dark brown, thin-walled cells of textura angularis. Pseudoparaphyses numerous, cellular, thin, hypha-like, septate, branched, persistent, emerged into the ostiolar canal. Asci 4- to 8-spored, bitunicate, fissitunicate, cylindric-clavate, pedicellate, with ocular chamber. Ascospores uni- to bi-seriate, fusiform to clavate, with rounded ends, straight or slightly curved, yellow- to reddish- to dark-brown, transversely septate, occasionally with one longitudinal or oblique septum, smooth- or rough-walled, surrounded by prominent gelatinous sheath. Asexual morph: Coelomycetous. Conidiomata solitary or aggregated, superficial, acervular, pearl white to dull yellow. Peridium composed of hyaline cells of textura intricata, embedded in gel. Conidiophores lining the acervuli wall, branched and septate, hyaline, smooth, embedded in gel. Conidiogenous cells holoblastic, terminal, cylindrical to sub-cylindrical, hyaline, smooth, bearing a single conidium. Conidia solitary, ellipsoidal, straight, hyaline, aseptate, smooth, thin-walled, with apical, sub-apical and basal appendages. (Descriptions from Dong et al. 2020)

 

Type species: Lolia aquatica Abdel-Aziz & Abdel-Wahab

 

Notes: Lolia was introduced by Abdel-Aziz and Abdel-Wahab (2010) to accommodate the asexual species L. aquatica collected on decayed stem of Phragmites australis from Egypt. Lolia is characterized by acervular conidiomata, clavate, ellipsoidal, cylindrical conidia with apical, sub-apical and basal appendages (Abdel-Aziz and Abdel-Wahab 2010). Its sexual morph was later collected on submerged decayed stem of Phragmites australis from River Nile (Abdel-Aziz 2016). The authors assigned two holotypes, IMI 398675 and CBS H-22130, based on both asexual and sexual morphs, respectively, which does not conform to “One fungus, one name” (Abdel-Aziz and Abdel-Wahab 2010; Abdel-Aziz 2016). We select the first holotype (IMI 398675, ex-type living culture MF644) as the exclusive holotype.

The second species L. dictyospora Abdel-Aziz was also collected from River Nile, but on submerged decayed rachis of Phoenix dactylifera (Abdel-Aziz 2016). The special characters of L. dictyospora, such as 4- to 8-spored asci and clavate ascospores occasionally with one longitudinal or oblique septa, distinguish it from L. aquatica (Abdel-Aziz 2016). Lolia aquatica has cellular, hypha-like pseudoparaphyses, while L. dictyospora has trabeculate, filiform pseudoparaphyses. Two species cluster together, but without bootstrap support (Abdel-Aziz 2016; Dong et al. 2020) (from Dong et al. 2020).

 

List of freshwater Lolia species

Lolia aquatica Abdel-Aziz & Abdel-Wahab, Mycotaxon 114: 36 (2011)

Freshwater distribution: Egypt (Abdel-Aziz and Abdel-Wahab 2010; Abdel-Aziz 2016)

Lolia dictyospora Abdel-Aziz, Phytotaxa 267(4): 283 (2016)

Freshwater distribution: Egypt (Abdel-Aziz 2016)

 

Key to freshwater Lolia species

1. Asci 8-spored, ascospores 26–37 × 6–9 μm····················································· L. aquatica

1. Asci 4–8-spored, ascospores 14–19 × 4–7 μm············································ L. dictyospora

 

Fig. 1. Lolia spp. (Material examined: EGYPT, Sohag, El Balyana city, on decayed stem of Phragmites australis (Cav.) Steud. at irrigation canal, March 2005, F.A. Abdel-Aziz, IMI 398675, holotype; Sohag, River Nile, on submerged decayed stem of Phragmites australis (Poaceae), 14 August 2012, F.A. Abdel-Aziz, CBS H-22130; Sohag, River Nile, on submerged decayed rachis of Phoenix dactylifera (Arecaceae), 14 August 2012, F.A. Abdel-Aziz, CBS H-22131). a–e Sexual morph of Lolia aquatica (CBS H-22130). a Vertical section of ascoma. b, c Bitunicate asci. d Ascospore with a large gelatinous sheath. e Ascospore in Indian Ink. f–j Asexual morph of L. aquatica (IMI 398675, holotype). f–g Vertical section through the gelatinous acervular (f in phase contrast). h–j Conidia. k–n L. dictyospora (CBS H-22131, holotype). k–m Asci. n Ascospores surrounded by a large sheath. Scale bars: a, f, g = 100 μm, b, c = 30 μm, d, e, h–n = 10 μm.

 

References

Abdel-Aziz FA (2016) The genus Lolia from freshwater habitats in Egypt with one new species. Phytotaxa 267:279–288

Abdel-Aziz FA, Abdel-Wahab MA (2010) Lolia aquatica gen. et sp. nov. (Lindgomycetaceae, Pleosporales), a new coelomycete from freshwater habitats in Egypt. Mycotaxon 114:33–42

Dong W, Wang B, Hyde KD, McKenzie EHC, Raja HA, Tanaka K, Abdel-Wahab MA, Abdel-Aziz FA, Doilom M, Phookamsak R, Hongsanan S, Wanasinghe DN, Yu X-D, Wang G-N, Yang H, Yang J, Thambugala KM, Tian Q, Luo Z-L, Yang J-B, Miller AN, Fournier J, Boonmee S, Hu DM, Nalumpang S, Zhang H (2020) Freshwater Dothideomycetes. Fungal Diversity 105:319-575

 

Recent Genus

1
Neochlamydotubeufia
Neohelicomyces

Recent Species

Neohelicomyces submersus
Neohelicomyces hyalosporus
Neohelicomyces grandisporus