Sentences with word «microsporidia»

The team of zoologists lead by Prof. Dieter Ebert has been studying the evolution of microsporidia for years.

Nematocida parisii, a newly discovered species of the protozoan parasites known as microsporidia, lives in the intestines of C. elegans, a small roundworm commonly used for research.

Electronmicroscopic picture of the spores of the newly discovered microsporidium M. daphniae.

«Our results are not only a milestone for the research on microsporidia, but they are also of great interest to the study of parasite - specific adaptations in evolution in general,» explains Ebert the findings.

Examining a handful of genes, Keeling and other researchers demonstrated that the single - gene tree had put microsporidia in the wrong kingdom.

Lower down, in the zone for more ancient branches, sprouted some oddball parasites such as Giardia (the bane of hikers who drink untreated water), sexually transmitted Trichomonas and tiny microsporidia, which attack many animals.

This finding is significant because Nuclearia lacks a cell wall and has phagotrophic nutrition in which the food source (such as a bacterium or algal cell) is engulfed wholly, unlike fungi and microsporidia which utilize absorptive nutrition.

With the help of scientists in Sweden and the U.S., the Basel researchers rewrote the evolutionary history of microsporidia.

... The list of diseases found with extraordinary frequency among male homosexual practitioners as a result of anal intercourse is alarming: anal cancer, chlamydia trachomatis, cryptosporidium, giardia lamblia, herpes simplex virus, human immunodeficiency virus, human papilloma virus, isospora belli, microsporidia, gonorrhea, viral hepatitis type B & C, syphilis.

The analysis of the entire genome had several surprises in store for them: The genome resembles more that of a fungi than a microsporidium and, in addition, also has a mitochondrial genome.

Further research confirms that the new species does in fact have a microsporidic, intracellular and parasitic lifestyle, but that its genome is rather atypical for a microsporidium.

The research group lead by Prof. Dieter Ebert from the Department of Environmental Science at the University of Basel has now discovered the missing link that explains how this large group of extreme parasites, the microsporidia, has evolved.

The scientists thus conclude that the microsporidia adopted intracellular parasitism first and only later changed their genome significantly.

The new species, now named Mitosporidium daphniae, thus represents the missing link between fungi and microsporidia.

When they discovered a new parasite in water fleas a couple of years ago, they classified this undescribed species as a microsporidium, mostly because it possessed the unique harpoon - like infection apparatus (the polar - tube), one of the hallmarks of microsporidia.

There seem to have been many earlier branchings from the eukaryotic stem, all represented by unicellular eukaryotes (such as the slime molds, the flagellates, the trichomonads, the diplomonads, the microsporidia, among others).

Less common parasites are Entamoeba Cystoisospora belli, Dientamoeba fragilis, Strongloides stercoralis and microsporidia.

After recognizing microsporidia as members of the fungal kingdom with all its elaborate metabolic tricks and lifestyles, biologists could see that microsporidia had been more complex at one time, but eventually lost fancy traits.

Although they have this elaborate equipment for infection, microsporidia are simple cells with genomes that are «tiny, tiny, tiny,» Keeling says.

The researchers detected some left - behind nuclear genes in supposed ancients, such as Giardia, Trichomonas and some microsporidia.

Many CCD investigations, using sensitive genome - based methods, have found small RNA bee viruses and the microsporidia, Nosema apis and N. ceranae in healthy and collapsing colonies alike with no single pathogen firmly linked to honey bee losses.