Genus

Marinokulati

Species

chaetosa

Author

(Kohlm.) E.B.G. Jones & K.L. Pang Cryptog. Mycol. 35: 133 (2014)

Class

Sordariomycetes, Subclass Hypocreomycetidae

Order

Torpedosporales

Family

Juncigenaceae

Synonymy: ≡ Chaetosphaeria chaetosa Kohlm., Nova Hedw. 6: 307 (1963).

Description

Marinokulati E.B.G. Jones & K.L. Pang Cryptog. Mycol. 35: 132 (2014)

Type species:

Marinokulati chaetosa (Kohlm.) E.B.G. Jones & K.L. Pang Cryptog. Mycol. 35: 133 (2014)

≡ Chaetosphaeria chaetosa Kohlm., Nova Hedw. 6: 307 (1963).

Index Fungorum number: Faceoffungi number:

Sexual morph: saprobic ascomata subglobose to pyriform, immersed to superficial, subcoriaceous, wall thick, ostiolate, papillate, necks long (385 μm), and periphysate dark brown or black. Paraphyses wide 1.5 to 4.5 μm, septate, apically free. Asci 8-spored, unitunicate, cylindrical to clavate, attenuate at the base, thick-walled at the apex with a perforated apical apparatus, persistent. Ascospores biseriate, fusiform to elongate ellipsoidal, 3-septate, constricted at the septa, hyaline with polar and equatorial appendages. Appendages formed by fragmentation of an exosporic sheath, polar appendage caducous. Asexual morph: Undetermined.

Key references:

Jones EBG, Moss ST, Cuomo V (1983) Spore appendage development in the lignicolous marine pyrenomycetes Chaetosphaeria chaetosa and Halosphaeria trullifera. Transactions of British Mycological Society 80: 193-200.

Jones EBG, Suetrong S, Cheng WH, Rungjindamai N, Sakayaroj J, Boonyuen N, Somrithipol S, Abdel-Wahab MA, Pang KL (2014) An additional fungal lineage in the Hypocreomycetidae (Falcocladium species) and the taxonomic re-evaluation of Chaetosphaeria chaetosa and Swampomyces species, based on morphology, ecology and phylogeny. Cryptogamae Mycologie 35:119-138.

Jones EBG, Suetrong S, Sakayaroj J, Bahkali AH, Abdel-Wahab MA, Boekhout T, Pang KL (2015) Classification of marine Ascomycota, Basidiomycota, Blastocladiomycota and Chytridiomycota. Fungal Diversity 73: 1-72.

Maharachchikumbura SSN, Hyde KD, Jones EBG, Mckenzie EHC, Huang SK, Abdel-Wahab MA et al. (2015) Towards a natural classification and backbone tree for Sordariomycetes. Fungal Diversity 72: 199-299.

Image: Marinokulati chaetosa. (a) Immersed ascoma. (b) Periphysate neck. (c) Peridium composed of several strata of cells. (d) Cylindrical ascus. (e) Fusiform ellipsoidal, 3-septate ascospore with appendages. Scale bar: a, d=40 μm; b–c, e =10 μm. (From Jones et al. 2015).

Type & Location:

Other Specimens:

Substratum:

Decayed driftwood.

Habitat:

Distribution:

Bulgaria, Denmark, Germany, Italy, Turkey, Spain, UK, USA.

Pertinent Literature:

Comments:

NOTES: Marinokulati chaetosa differs from Chaetosphaeria sensu stricto (type species Ch. innumera) by having ascospores with polar and equatorial appendages formed by fragmentation of an exosporic sheath (Jones et al. 1983), it lacks asexual phialidic stages, and its marine habitat. Phylogenetic analyses based on ribosomal genes placed Marinokulati chaetosa in a monophyletic clade with the genera Juncigena and Fulvocentrum under Juncigenaceae (Jones et al. 2014). The genus is accepted as a member of the Juncigenaceae (Torpedosporales) by Jones et al. (2015) and Maharachchikumbura et al. (2015).

Images

Fig 1