Fungal parasites of rotifers: two new verticillate endoparasites with aerial conidiophores

1980 ◽  
Vol 58 (4) ◽  
pp. 432-438 ◽  
Author(s):  
G. L. Barron
Keyword(s):  
New Species ◽  
Bdelloid Rotifers ◽  
Resting Spores ◽  
Fungal Parasites

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.

Fungal parasites of rotifers: a new Tolypocladium with underwater conidiation

1980 ◽  
Vol 58 (4) ◽  
pp. 439-442 ◽  
Author(s):  
G. L. Barron
Keyword(s):  
New Species ◽  
Host Body ◽  
Resting Spores ◽  
Fungal Parasites ◽  
A New Species ◽  
Nodular Appearance

A new species, Tolypocladium parasiticum, is described as endoparasitic on the rotifer host Adineta. Unlike most other known Hyphomycetes parasitic on rotifers, conidia are produced underwater. Infection is initiated by conidia lodging in the lower gullet near the mastax of the host. Conidiogenous cells (phialides) arise either directly from the host body or in clusters from short, simple conidiophores. This species produces solitary terminal resting spores with an unusual nodular appearance.

Descriptions of two new species of Philodina (Rotifera, Bdelloidea), with notes on seven rare bdelloids from Korea

Zootaxa ◽  
2020 ◽  
Vol 4772 (2) ◽  
pp. 253-276
Author(s):  
MIN OK SONG ◽  
CHANG-HO LEE
Keyword(s):  
New Species ◽  
Species Level ◽  
Taxonomic Study ◽  
Mitochondrial Cytochrome ◽  
Bdelloid Rotifers ◽  
Subspecies Level ◽  
Two New Species ◽  
Terrestrial Habitats ◽  
I Gene ◽  
Rotifera Bdelloidea

A taxonomic study on bdelloid rotifers collected from various terrestrial habitats at five different locations in Korea resulted in eight new Korean records and two new species-level taxa, Philodina clypeata  n. sp. and P. verrucosa  n. sp. Among the eight new Korean records, two species- and three subspecies-level taxa are new to Asia as well. These new Korean records also include seven rare species/subspecies-level taxa with poorly known distributions. Habrotrocha gracilis quadridens Schulte and Macrotrachela zickendrahti seda Donner were rediscovered in Korea 64 and 53 years, respectively, after the original descriptions. Habrotrocha ligula aligula Burger, Macrotrachela insulana Donner, M. petulans Milne, M. pinnigera (Murray), and Philodina parvicalcar De Koning have been reported from two to three countries only including their type localities before the present study. In addition, a partial sequence of mitochondrial cytochrome c oxidase subunit I gene (mtCOX1) for P. verrucosa  n. sp. as well as a taxonomic key for the Philodina species recorded from Korea to date are also provided here. 

A new genus, Rotiferophthora, to accommodate the Diheterospora-like endoparasites of rotifers

1991 ◽  
Vol 69 (3) ◽  
pp. 494-502 ◽  
Author(s):  
G. L. Barron
Keyword(s):  
New Species ◽  
Key Words ◽  
New Genus ◽  
Hydrophobic Membrane ◽  
Bdelloid Rotifers ◽  
Oil Droplet

The species of Diheterospora attacking bdelloid rotifers have been compared with Diheterospora chlamydosporia and found to be different in a number of important characteristics. These include the consistent presence of aphanophialides, proliferation of phialides and aphanophialides to form polyphialides, containment of the conidial mass in a hydrophobic membrane, reduction or elimination of the verticillate arrangement of the conidiogenous cells, and presence of a large oil droplet in each conidium. It is considered that these differences are sufficient to separate the rotifer parasites from both Diheterospora and Verticillium. Accordingly, a new genus, Rotiferophthora, is erected to accommodate the 17 species recognized in this group of fungi. Thirteen rotifer parasites previously described under Diheterospora, Verticillium, or Acrostalagmus are transferred to Rotiferophthora, and four new species of Rotiferophthora are described. Key words: Diheterospora, Rotiferophthora, endoparasite, rotifer.

Two new fungal parasites of bdelloid rotifers

1981 ◽  
Vol 59 (8) ◽  
pp. 1449-1455 ◽  
Author(s):  
G. L. Barron
Keyword(s):  
Bdelloid Rotifers ◽  
Rapid Injection ◽  
Fungal Parasites

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.

New species and new records of fungi that attack microscopic animals

1989 ◽  
Vol 67 (1) ◽  
pp. 267-271 ◽  
Author(s):  
G. L. Barron
Keyword(s):  
New Species ◽  
New Records ◽  
Bdelloid Rotifers ◽  
Egg Shell

Three species of fungi that attack microscopic animals are described as new. Verticillium coronatum (Hyphomycetes) produces conidia that have a cluster of small, apical appendages. The appendages function in attaching the conidia to the cuticle of the host nematode in the initial stages of infection. Diheterospora humicola (Hyphomycetes) was found to attack bdelloid rotifers in soil. Infection of the host is initiated by ingestion of conidia. Lagenidium oviparasiticum (Oomycetes) is an aggressive parasite of the eggs of Adineta rotifers. Zoospores of the fungus encyst on the egg shell, penetrate, and transfer their contents into the egg to initiate infection.

Fungal parasites of bdelloid rotifers: Diheterospora

1985 ◽  
Vol 63 (2) ◽  
pp. 211-222 ◽  
Author(s):  
G. L. Barron
Keyword(s):  
Bdelloid Rotifers ◽  
Fungal Parasites ◽  
First Time

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.

A new and five rare bdelloids from Korea

Zootaxa ◽  
2017 ◽  
Vol 4242 (3) ◽  
pp. 529 ◽  
Author(s):  
MIN OK SONG ◽  
CHANG-HO LEE
Keyword(s):  
New Species ◽  
Rare Species ◽  
Taxonomic Study ◽  
Mitochondrial Cytochrome ◽  
Bdelloid Rotifers ◽  
Terrestrial Habitats ◽  
The Antarctic ◽  
First Time ◽  
A New Species ◽  
I Gene

A taxonomic study on bdelloid rotifers collected from various terrestrial habitats at six different locations in Korea yielded 12 new Korean records and a new species, Philodina koreana n. sp. Among the 12 new Korean records, eight species and two subspecies are new to Asia. These new Asian records include five rare species with poorly known distributions. Philodina childi Milne and P. scabra Milne were rediscovered in Korea almost 100 years after the original descriptions from South Africa. Our study is the first to report Habrotrocha longicalcarata Bērzinš outside its type locality. Macrotrachela nixa Donner has previously been reported only from New Zealand and the Antarctic after description from Spain. Finally, H. solida Donner is recorded outside Europe for the first time. Here, we provide a description of the new species and discuss the taxonomy and distribution of these five rare species. In addition, a partial sequence of mitochondrial cytochrome c oxidase subunit I gene (mtCOX1) for P. koreana n. sp. as well as a taxonomic key for the Philodina species recorded from Korea to date are also provided here. 

Fungal Parasites of Bdelloid Rotifers: A New Phialophora

Mycologia ◽  
1984 ◽  
Vol 76 (6) ◽  
pp. 1107 ◽  
Author(s):  
G. L. Barron ◽  
E. Szijarto
Keyword(s):  
Bdelloid Rotifers ◽  
Fungal Parasites
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