mangrovispora

Arthrobotrys Corda, Pracht – Flora. Europaeischer Schimmel–Bildungen: 43 (1839)

Type species:

Arthrobotrys superba Corda Pracht – Flora. Europaeischer Schimmel–Bildungen: 43 (1839)

Marine species:

Arthrobotrys mangrovispora Swe, Jeewon, Pointing & K.D. Hyde, Botanica Marina 51: 332 (2008)

Saprobic on mangrove debris, Asexual morph: Colonies on CMA medium villiform, creamy on both front and reverse side of the media cream. Colonies on CMA slow growing, with rhizoid like radial growth and up to 15.7 mm in diameter at 0 psu salinity (258C) and they did not grow at 35 psu salinity (258C) within 7 days. Mycelium spreading, scanty, irregularly projecting, hyaline, septate, branched. Conidiophores 70–330 mm high, 1.5–5 mm wide at the base, hyaline, erect, septate, bearing first a single conidium at the tip, later additional conidia from the lateral branches or longer geniculate branches below the tip, commonly producing 1–6 conidia; each long denticle or branch bearing a single conidium. Conidia 25–(38.9)–50=12–(17.3)–24 mm, colourless, variable in shape; broadly turbinate to elongate–fusoid, ellipsoidal or fusiform–ellipsoidal, clavate, fusiform–ellipsoidal, broadly obovoid, ellipsoidal, broadly turbinate, elongate–obovoid, 1–3 septa; proportions of conidia with 0, 1, 2 or 3 septa are 6%, 23.5%, 50.0% and 20.5%, respectively. Trapping device: an adhesive network. Chlamydospores present. Sexual morph: Undetermined.

Description based on Swe et al. (2008a).

List of marine species:

Jones et al. (2009) provide a key to the marine Arthrobotrys species.

1. A. arthrobotryoides (Berl.) Lindau, Rabenh. Krypt.–Fl., Edn 2 (Leipzig) 1.8: 371 (1906) [1907]
2. 2. A. brochopaga (Drechsler) S. Schenck, W.B. Kendr. & Pramer, Can. J. Bot. 55(8): 982 (1977)
3. A. cladodes var. cladodes Drechsler, Mycologia 29(4): 463 (1937)
4. A. dactyloides Drechsler, Mycologia 29(4): 486 (1937)
5. A. eudermata (Drechsler) M. Scholler, Hagedorn & A. Rubner, Sydowia 51(1): 102 (1999)
6. A. javanica (Rifai & R.C. Cooke) Jarow., Acta Mycologica, Warszawa 6(2): 373 (1970)
7. A. mangrovispora Swe, Jeewon, Pointing & K.D. Hyde, Bot. Mar. 51(4): 332 (2008)
8. A. musiformis Drechsler, Mycologia 29(4): 481 (1937)
9. A. oligospora Fresen., Beitr. Mykol. 1: 18 (1850)
10. A. polycephala (Drechsler) Rifai, Reinwardtia 7(4): 371 (1968)
11. A. pyriformis (Juniper) Schenk, W.B. Kendr. & Pramer, Can. J. Bot. 55(8): 984 (1977)
12. A. superba Corda, Pracht.–Fl. Eur. Schimmelbild.: 43 (1839)
13. A. vermicola (R.C. Cooke & Satchuth.) Rifai, Reinwardtia 7(4): 371 (1968)

Key references:

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

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.

Maria GL, Sridhar KR (2004). Fungal colonization of immersed wood in mangroves of the Southwest coast of India. Canadian Journal of Botany 82: 1409–1418.

Swe A, Jeewon R, Pointing SB, Hyde KD (2008a). Taxonomy and molecular phylogeny of Arthrobotrys mangrovispora, a new marine nematode–trapping fungal species. Botanica Marina. 51: 331–338.

Swe A, Jeewon R, Pointing SB, Hyde KD (2008b). Diversity and abundance of nematode–trapping fungi from decaying litter in terrestrial, freshwater and mangrove habitats. Biodivers Conserv (2009) 18: 1695–1714.

DOI 10.1007/s10531–008–9553–7