Jobellisiales

Jobellisiales M.J. D’ souza & K.D. Hyde

 

Saprobic on wood in terrestrial and freshwater habitats. Sexual morph: Ascomata perithecial, basally immersed to superficial, astromatic, globose to subglobose, lageniform to obpyriform, brown to black or yellowish, glabrous or slightly rugose, with a papilla or with upright neck. Peridium three-layered, comprising cells of textura angularis or textura prismatica or textura intricata, some with an orange, middle wall layer. Paraphyses numerous, septate. Asci 8-spored, unitunicate, cylindrical to clavate, short pedicellate, with a J-, distinct, refractive, apical ring. Ascospores uniseriate or overlapping uniseriate, oblong to ellipsoidal, fusoid to fusiform, straight or slightly curved, reddish-brown or greenish-brown to brown, darker at the median septum, 1-septate, with germ pores at one or both ends. Asexual morph: Undetermined (adapted from Réblová 2008 and Maharachchikumbura et al. 2016b).

 

Notes: Jobellisiales was established by Maharachchikumbura et al. (2015) and comprises a single family Jobellisiaceae based on perithecial, yellow, orange or brown ascomata and cylindrical asci with brown ascospores (Ranghoo et al. 2001, Liu et al. 2012, Maharachchikumbura et al. 2016b). Most members in Jobellisiales have been found in America in terrestrial and freshwater habitats and no asexual morph is known (Ranghoo et al. 2001, Liu et al. 2012, Maharachchikumbura et al. 2016b). Jobellisiales species are similar to some members of Diaporthales in having brown, 1-septate ascospores (Maharachchikumbura et al. 2015, Senanayake et al. 2017a). Phylogenetically, Jobellisiales was a sister clade of Calosphaeriaceae (Maharachchikumbura et al. 2015, 2016b, Hongsanan et al. 2017), and Hyde et al. (2017a) proposed that Jobellisiales is closely related to Togniniaceae. Hongsanan et al. (2017) and Wijayawardene et al. (2018a) considered Jobellisiales to be synonym of Calosphaeriales. However, Jobellisiales is an unstable clade, and Hyde et al. (2020) accepted it as an independent order and related to Calosphaeriales and Diaporthales. The divergence time for Jobellisiales is estimated as 138 MYA. Currently there is one family with one genus in this order (Hyde et al. 2020).

 

References:

Hongsanan S, Maharachchikumbura SSN, Hyde KD, Samarakoon MC et al. 2017 – An updated phylogeny of Sordariomycetes based on phylogenetic and molecular clock evidence. Fungal Diversity 84, 25–41.

Hyde KD, Maharachchikumbura SSN, Hongsanan S, Samarakoon MC et al. 2017a – The ranking of fungi: a tribute to David L. Hawksworth on his 70th birthday. Fungal Diversity 84, 1–23.

Liu F, Hu DM, Cai L. 2012 – Conlarium duplumascospora gen. et. sp. nov. and Jobellisia guangdongensis sp. nov. from freshwater habitats in China. Mycologia 104, 1178–1186.

Maharachchikumbura SSN, Hyde KD, Jones EBG, McKenzie EHC et al. 2015 – Towards a natural classification and backbone tree for Sordariomycetes. Fungal Diversity 72, 199–301.

Maharachchikumbura SSN, Hyde KD, Jones EBG, McKenzie EHC et al. 2016b – Families of Sordariomycetes. Fungal Diversity 79, 1–317.

Ranghoo VM, Tsui CKM, Hyde KD. 2001 – Brunneosporella aquatica gen. et sp. nov., Aqualignicola hyalina gen. et sp. nov., Jobellisia viridifusca sp. nov. and Porosphaerellopsis bipolaris sp. nov. (ascomycetes) from submerged wood in freshwater habitats. Mycological Research 105, 625–633.

Senanayake IC, Crous P, Groenewald J, Maharachchikumbura SSN et al. 2017a – Families of Diaporthales based on morphological and phylogenetic evidence. Studies in Mycology 86, 217–296

Wijayawardene NN, Hyde KD, Lumbsch HT, Liu JK et al. 2018a – Outline of Ascomycota: 2017. Fungal Diversity 88, 167–263.

 

Recent Genus

1
Neochlamydotubeufia
Neohelicomyces

Recent Species

Neohelicomyces submersus
Neohelicomyces hyalosporus
Neohelicomyces grandisporus