Fungalpedia – Note 373, Dendrochytridium

 

Dendrochytridium Letcher, Longcore & M.J. Powell

            Citation when using this data: Tibpromma et al. 2024 (in prep.) – Fungalpedia, Chytridiomycota.

Index FungorumFacesoffungiMycoBankGenBank, Fig. 1          

Classification: Chytridiaceae, Chytridiales, Chytridiomycetidae, Chytridiomycetes, Chytridiomycotina, Chytridiomycota, Fungi.

             Based on genetic, morphological, and ultrastructural evidence, Letcher et al. (2014) established Dendrochytridium accommodates the chytrid Dendrochytridium crassum (type species) in Chytridiaceae. Dendrochytridium is characterized by endogenous, monocentric, eucarpic, white in mass culture; sporangium rhizoids endobiotic, epibiotic; sporangium spherical to oblate; zoospores posteriorly uniflagellate, subspherical, eccentric, or irregular upon release, becoming spherical; kinetosome-associated structure spherical; flagellar plug composed of three layers. The zoospore ultrastructure of Dendrochytridium is less complex than that of other members of Chytridiaceae (Letcher et al. 2014). No further species have been introduced to Dendrochytridium which remains monotypic.

Type species: Dendrochytridium crassum Letcher, Longcore & M.J. Powell

Other accepted species: This genus is monotypic.

 

Figure 1 – Dendrochytridium crassum Spherical zoospores with single oil globule. b Two-day-old thallus. c Zoospores oozing from two discharge sites on a zoosporangium, in evanescent vesicles. d Three typical profiles of elongate, first released zoospores (L = lipid globule, N = nucleus, R= ribosomes). Scale bars: a-c = 10 μm. Redrawn from Letcher et al. (2014).

 

Reference

Letcher PM, Longcore JE, Powell MJ. 2014– Dendrochytridium crassum gen. et sp. nov., a taxon in Chytridiales with unique zoospore ultrastructure. Mycologia 106(1), 145–153.

 

 

Entry by

Du TY, Center for Yunnan Plateau Biological Resources Protection and Utilization, College of Biological Resource and Food Engineering, Qujing Normal University, Qujing, Yunnan 655011, China; Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand; School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand.

 

(Edited by Saowaluck Tibpromma, Samaneh Chaharmiri-Dokhaharani & Achala R. Rathnayaka)

 

Published online 25 November 2024