Fungal Parasites of Bdelloid Rotifers: A New Phialophora

Mycologia ◽  
1984 ◽  
Vol 76 (6) ◽  
pp. 1107 ◽  
Author(s):  
G. L. Barron ◽  
E. Szijarto
1981 ◽  
Vol 59 (8) ◽  
pp. 1449-1455 ◽  
Author(s):  
G. L. Barron

Haptoglossa humicola (Oomycetes) and Tolypocladium trigonosporum (Hyphomycetes) are described as new endoparasites attacking rotifers, belonging to the genera Adineta and Philodina, in soil. In H. humicola the laterally biflagellate zoospores produce spherical cysts each of which then germinates to form a specialized injection cell. The host is attacked by means of rapid injection of a sporidium through the cuticle. Each sporidium produces a thallus inside the host which at maturity functions as a zoosporangium. In T. trigonosporum, after infection, a network of curved anastomosing fertile hyphae produces a loose shell around the encysted host. Conidia are not produced under water, but in air these fertile hyphae give rise to solitary or clustered phialides and triangulate conidia.


1985 ◽  
Vol 63 (2) ◽  
pp. 211-222 ◽  
Author(s):  
G. L. Barron

Descriptions and illustrations are given for 12 species of Diheterospora recovered from parasitized rotifers in Ontario. Four of these species have been previously described and eight are described for the first time.


1980 ◽  
Vol 58 (4) ◽  
pp. 432-438 ◽  
Author(s):  
G. L. Barron

Diheterospora rotiferorum and Diheterospora ovispora are described as new species endoparasitic on bdelloid rotifers belonging to Philodina and Adineta. In both species resting spores (aleuriospores) are produced underwater and disseminative spores (phialoconidia) are produced from aerial conidiophores. Verticillium reniformis and Acrostalagmus tagenophorus, also endoparasites of rotifers, are transferred to the genus Diheterospora.


Mycologia ◽  
1984 ◽  
Vol 76 (6) ◽  
pp. 1107-1110 ◽  
Author(s):  
G. L. Barron ◽  
E. Szijarto

Science ◽  
2010 ◽  
Vol 327 (5965) ◽  
pp. 574-576 ◽  
Author(s):  
C. G. Wilson ◽  
P. W. Sherman

1981 ◽  
Vol 59 (7) ◽  
pp. 1207-1212 ◽  
Author(s):  
G. L. Barron ◽  
S. S. Tzean

Triacutus subcuticularis is described as an endoparasite of bdelloid rotifers. The infection hypha does not establish in the visceral tissue but grows in the pseudocoel between the cuticle and the epidermis. In this location the thallus grows and divides repeatedly to produce numerous unicellular assimilative segments which pack the subcuticular space of the living host. After death, each hyphal segment produces one or several filiform extensions which bear solitary one-celled, three-pronged spores at the apex. Infection is initiated by the spore impaling the rotifers in the mouth region.


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