Genus

Acrocordiopsis

Species

patilii

Author

Borse & K.D. Hyde, 1989. Mycotaxon, 34: 535.

Class

Dothideomycetes, Subclass Pleosporomycetidae

Order

Pleosporales

Family

Salsugineaceae

Synonymy:

Description

Acrocordiopsis Borse & K.D. Hyde, Mycotaxon 34(2): 535 (1989)

Type species:

Acrocordiopsis patilii Borse & K.D. Hyde, 1989. Mycotaxon, 34: 535.

Saprobic on mangrove wood. Sexual morph: ascomata: 1-3 mm in diam., 1-2 mm high, conical or semiglobose, seated on a thin black stroma that covers the wood surface; also, next to the large ascomata are similar smaller fruiting bodies, containing hyaline, one-celled spores, most probably spermatia of the same species; superficial, solitary or gregarious, black, ostiolate, carbonaceous. Peridium: 250-350 µm thick, 2-3 layered; outer layer 240-338 µm, thick, black, pseudoparenchymatous, composed of thick-walled black cells; inner layer 9-14 µm thick, hyaline light-brown, merging with pseudoparaphyses, composed of irregular elongate thin-walled cells. The third layer of rectangular thick-walled cells, brown in colour, fills the angle between the cover and basis of the ascomata. Pseudoparaphyses: 0.5-1.5 µm, hyaline, numerous, filiform, persistent, anastomosing and sparsely septate. Asci: 150-250 x 12-16 µm, 8-spored, bitunicate, with an apical thickened refractive region and an ocular chamber, cylindrical, pedunculate, developing from base and corners of the ascomata. Ascospores: 16-25 x 10-16 µm, hyaline or slightly yellow, 1-septate, constricted at the septum, ovoidal or ellipsoidal, one large guttule per cell, lacking a sheath or appendages. Asexual morph: Undetermined.

Key references:

Alias SA, Jones EBG (1999). Intertidal fungi from the Philippines, with a description of Acrocordiopsis sphaerica sp. nov. Fungal Diversity. 2:35–41.

Borse BD, & Hyde KD (1989). Marine fungi from India. III. Acrocordiopsis patilii gen. et sp. nov. from mangrove wood. Mycotaxon. 34(2):535–540.

Borse BD, Bhat DJ, Borse KN, Tuwas AR, Pawar NS (2012). Marine Fungi of India. Broadway Book Centre, India.

Hyde KD, Jones EBG, Ariyawansha H, Liu JK, Binder M, Jayawardene N, et al. (2013). Families of Dothideomycetes. Fungal Divers 63: 1–313.

Jones EBG, Sakayaroj J, Sueterong S, Somrithipol A, Pang KL (2009) Classification of marine Ascomycota, anamorphic taxa and Basidiomycota. Fungal Divers 35: 1–187.

Schmit, JP, Shearer CA (2003). A checklist of mangrove associated fungi. Mycotaxon 80: 423–477.

Key to Acrocordiopsis species:

1. Ascospores: 16–25 x 10–16 µm, hyaline or slightly yellow, 1–septate, constricted at the septum, ovoidal or ellipsoidal A. patilii

1. Ascospores 18–27 x 15–24 µm, 1–septate, spherical to ellipsoid, hyaline to sub–hyaline A. sphaerica

Type & Location:

Other Specimens:

Substratum:

saprobic on dead mangrove wood, intertidal wood in mangroves.

Habitat:

Distribution:

Australia, Brunei, India, Malaysia, Maldives, Mauritius, Thailand.

Pertinent Literature:

Comments:

NOTES: The genus Acrocordiopsis, with two species, is only known from mangrove habitats, variously referred to the Caryosporaceae, Melanommatacae (Wijayawatdene et al. 2017) but sequence data places it in the Salsugineaceae (Hyde et al. 2013, Jones et al. 2015). Phylogenetic it groups with the genus Salsuginea,e although the two genera morphologically have little in common (Hyde et al. 2013). The genus was introduced by Borse and Hyde (1989) from material collected in India. The second species Acrocordiopsis sphaerica was collected in a mangrove in the Philippines (Alias and Jones (1999). Acrocordiopsis patilii has been frequently collected in the Indian and Pacific Oceans, but not from the Atlantic Ocean (Schmit and Shearer 2003). Many collections have been reported from India on Avicennia spp., Rhizophora spp., and Sonneratia alba mangrove substrates (see Borse et al. 2012).

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