Ultrastructure of Coelomocytes in Sphaerolaimus gracilis de Man, 1876 (Nematoda).

Descriptions of Eumonhystera borealis n. sp., Sphaerolaimus occidentalis n. sp., and a Redescription of S. gracilis de Man 1876 (Nemata) from Bothnian Bay, Baltic Sea.

The free-living nematodes Eumonhystera borealis n. sp., Sphaerolaimus occidentalis n. sp., and S. gracilis de Man 1876 from Bothnian Bay in the northern Baltic Sea are described and illustrated. Eumonhystera borealis n. sp. differs from other species by its small body size (314-393 mum), narrow body (a = 37-49), and large anterior amphids. In Sphaerolaimus occidentalis n. sp. the amphids are po...

Phylogenetic analysis of nematode nuclear 18S rDNA sequences indicates the genus Tripylina Brzeski, 1963 (Nematoda: Tripylidae de Man, 1876) should be placed in Enoplida

We have made an extensive study of New Zealand representatives of nematodes from the family Tripylidae de Man, 1876. Based on SSU DNA sequence data and phylogenetic analysis, the genera Tripylina Brzeski, 1964 and Trischistoma Cobb, 1913 are not closely related to Tripyla Bastian, 1865, the type genus of the family Tripylidae de Man 1876. The genus Tripylina is sister to Trischistoma and Trefus...

Effects of ethidium bromide on growth, chlorophyll synthesis, ultrastructure and mitochondrial DNA in green and bleached mutant, Euglena gracilis.

Isolation of Intact Chloroplasts from Euglena gracilis by Zonal Centrifugation.

Chloroplasts were separated from Euglena gracilis by zonal centrifugation at low speed in density gradients of Ficoll or dextran. The chloroplasts were intact by the criteria of ultrastructure and their content of ribulose diphosphate carboxylase and soluble protein. The chloroplasts also contained ribosomes and ribosomal RNA uncontaminated by the corresponding cytoplasmic particles.

Some notes on nomenclature (Nematoda).

Taxonomic status of Paratrilobus Micoletzky, 1922 Bastian (1865) established the genus Trilobus with T. gracilis as type species. Trilobus {Paratrilobus) with T. (Paratrilobus) grandipapilloides as type was set up by Micoletzky in 1922. Generic rank was given to this subgenus by Baylis and Daubney (1926). Filipjev and Schuurmans Stekhoven (1941) also gave it generic rank, but as a synonym of Tr...