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Polynucleobacter necessarius gen. nov., sp. nov., an Obligately Endosymbiotic Bacterium Living in the Cytoplasm of Euplotes aediculatus
Obligately endosymbiotic bacteria living in the cytoplasm of ciliates of the genus Euplotes constitute the new genus Polynucleobacter gen. nov, and the best-studied form, as well as the type species, is omicron from stock 15 of EUplotes aediculatus.
UGA is translated as cysteine in pheromone 3 of Euplotes octocarinatus.
Pheromone 3 mRNA of the ciliate Euplotes octocarinatus contains three in-frame UGA codons that are translated as cysteines that suggests that the role of the classic termination codons had not yet been established when the ciliates started to diverge from other eukaryotes.
Occurrence of fragmented 16S rRNA in an obligate bacterial endosymbiont of Paramecium caudatum.
The phylogenetic position of Caedibacter caryophila, a so far noncultured killer symbiont of Paramecium caudatum, was elucidated by comparative sequence analysis of in vitro amplified 16S rRNA genes
Biogeographical Differences in a Common Soil Ciliate, Gonostomum affine (Stein), as Revealed by Morphological and RAPD-Fingerprint Analysis
Generally, separation was rather weak and highly dependent on the indices and clustering algorithms used, indicating that, at the present state of knowledge, most Gonostomum affine-like morphotypes fall into the range of natural variability of a single species.
Regulation of macronuclear DNA content in Paramecium tetraurelia
Analysis of variance within cell lines shows that macronuclear DNA content is regulated so that a constant variance is maintained from one cell generation to the next.
Caedibacter caryophila sp. nov., a Killer Symbiont Inhabiting the Macronucleus of Paramecium caudatum
Caedibacter caryophila sp. nov. lives in the macronucleus of certain strains of Paramecium caudatum. The type strain is 221, carried in P. caudatum C221. C. caryophila is distinguished from other
Pheromone 4 gene of Euplotes octocarinatus.
A 1.7 kb macronuclear chromosome encoding the pheromone 4 gene of Euplotes octocarinatus is cloned and sequenced and shows that the secreted phersomone consists of 85 amino acids, and one of its amino acids is encoded by a UGA codon.
Fast and Accurate Identification of European Species of the Paramecium aurelia Complex by RAPD-Fingerprints
A 10-mer random primer that generated fingerprints highly specific for nine different P. aurelia species was developed, and field studies are now possible to answer basic questions concerning the ecology of Paramecium.
Antigenic Variation in Ciliates: Antigen Structure, Function, Expression 1
The function of variable surface antigens in free‐living ciliates is still unknown and the involvement of homology‐dependent effects has been proposed several times but has not been proved yet.