Ascomycota, genera » incertae sedis

Catenophora

Catenophora Luttr., Mycologia 32(4): 535 (1940)

Facesoffungi number: FoF 07142

Ascomycota, genera incertae sedis

 

Parasitic on the host plant in terrestrial habitat. Sexual morph: undetermined. Asexual morph: Conidiomata dark brown to black, acervular, scattered to gregarious or confluent, initially immersed, then become erumpent, depressed globose to pulvinate, glabrous. Ostiole absent. Conidiomatal wall composed of thick-walled, brown to hyaline cells of textura angularis. Conidiophores arising from the innermost layer of conidiomata, sub-hyaline to hyaline, cylindrical, branched at base, arranged in compact, linear columns, septate, smooth-walled. Conidiogenous cells sub-hyaline to hyaline, holoblastic, cylindrical to doliiform, catenate, integrated, determinate, smooth-walled, with acropleurogenous conidia. Conidia hyaline to sub-hyaline, elliptical with obtuse apex and slightly truncate base, unicelullar, smooth-walled (Luttrell 1940, Nag Raj 1977a, Sutton 1980, Nag Raj and Kendrick 1988).

 

Type species: Catenophora pruni Luttr., Mycologia 32(4): 536 (1940)

 

Notes: The asexual morph of Tympanis, Catenophora, Dendrodomus, Pyrenochaeta, Pleurophoma, and Sirophoma form conidiomata with filiform, acropleurogenously branched conidiophores (Sutton 1980, Damm et al. 2010). Catenophora has acervular conidiomata and holoblastic conidiogenous cells, whereas other genera have pycnidial conidiomata and enteroblastic, phialidic conidiogenous cells. Catenophora species are associated with Prunus serrulata (Rosaceae), Yucca sp. and Yucca baccata (Asparagaceae). No molecular data is available for this genus.

 

Distribution: USA (Nag Raj 1977a, Sutton 1980).

 

Catenophora pruni (redrawn from Sutton 1980) a Conidia. b Conidiophores, conidiogenous cells and developing conidia. c Vertical section of conidioma.

 

References:

 

Li WJ, McKenZie EHC, Liu JK, Bhat DJ, Dai DQ, Caporesi E, Tian Q, Maharachcikumbura SSN, Luo ZL, Shang QJ, Zhang JF, Tangthirasunun N, Karunarathna SC, Xu JC, Hyde KD (2020) Taxonomy and phylogeny of hyaline-spored coelomycetes. Fungal Diversity 100: pages279–801.

 

 

 

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