Fungalpedia – Note 502, Catenomycetaceae
Catenomycetaceae Doweld
Citation when using this data: Tibpromma et al. 2024 (in prep.) – Fungalpedia, Blastocladiomycota.
Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig. 1
Classification: Catenariaceae, Blastocladiales, Incertae sedis, Blastocladiomycetes, Incertae sedis, Blastocladiomycota, Fungi
Catenomycetaceae was introduced by Doweld (2014). This family is characterized by a unique morphology in having polycentric to rarely monocentric thallus, diffusely organized, intramatrical and extrametrical. Intramatrical portion is branched or unbranched, septate; septa delimit the sporangia’s rudiments or sterile isthmuses. The extramatrical portion is branched, aseptate and sterile (Hanson 1945). Zoosporangia intercalary are smooth, pyriform, with strongly developed discharge tubes with endoopercula. Zoospores having spherical and have multiple golden lipid globules. Flagellum is single and forms a temporary group near the orifice, intermittently amoeboid; zoospore germination is bipolar (Hanson 1945). Saprobic on cellulosic substrata (Hanson 1945).
Type genus: Catenomyces A.M. Hanson
Other accepted species: Species Fungorum – search Catenomycetaceae
Figure 1 – Catenomyces persicinus. a Swimming zoospore. b Amoeboid zoospore. c Germination of spores, showing branching of germ tube and the origin of extramatrical hyphae. d Relationship of the old zoospore case to the incipient primary sporangium and its branches. Redrawn from Hanson (1945).
References
Doweld AB. 2014 – Nomenclatural novelties. Index Fungorum 81, 1-1.
Entry by
Premarathne BM, National Institute of Fundamental Studies (NIFS), Hantana, Kandy 20000, Sri Lanka
(Edited by Saowaluck Tibpromma, Samaneh Chaharmiri-Dokhaharani, & Achala R. Rathnayaka)
Published online 9 December 2024