Sentences with word «mediterranea»

Here we report that in addition to producing an ommochrome body pigment, the planarian flatworm Schmidtea mediterranea generates porphyrins in its subepithelial pigment cells under physiological conditions, and that this leads to pigment cell loss when animals are exposed to intense visible light.

Stubenhaus et al. found that S. mediterranea makes porphyrins in the pigment cells of its skin using the same genes that make porphyrins in humans.

C. Michael Hogan changed the thumbnail image of «Persephona mediterranea (Herbst)(USNM 174249) dorsal view».

The assembly of the Schmidtea mediterranea genome involved eight terabytes of data that took the high - performance computing cluster at the HITS three weeks to complete.

Nevertheless, when taken together with the absorption spectrum of purified body pigment and the pigment cell expression of KMO - 1, the color changes in RNAi animals strongly suggest S. mediterranea produces an ommochrome body pigment.

Here, Stubenhaus et al. studied how a flatworm called Schmidtea mediterranea makes porphyrins.

As a result, scientists see S. mediterranea as a useful test organism for drugs and therapies that may one day yield a treatment.

But how Schmidtea mediterranea achieves these feats is so far poorly understood.

Planarians such as Schmidtea mediterranea live in freshwater streams and ponds, eating insects and avoiding light, which they spot with the simple photodetectors that give them a cross-eyed look.

S ‡ nchez Alvarado has been working since the late 1990s to turn S. mediterranea into a model organism.

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C. Michael Hogan set «Persephona mediterranea (Herbst)(USNM 174249) dorsal view» as an exemplar on «Leucosiidae».

The S. mediterranea genome is being sequenced at the Genome Sequencing Center at Washington University in St. Louis.

Our results indicate that S. mediterranea produces both ommochromes and porphyrins in its subepithelial pigment cells, and that prolonged light exposure eliminates these cells through a mechanism involving porphyrin - dependent photosensitization (Figure 8).

The nematode S. mediterranea can even re-grow its head and brain when decapitated.

Now, a team of scientists from the Institute for Stem Cell Biology and Regenerative Medicine (inStem) and the National Centre for Biological Sciences (NCBS) have found that many messenger molecules in the flatworm Schmidtea mediterranea have alternate forms that vary in the lengths and positions of their tails.

This study on S. mediterranea is the first of its kind in flatworm model systems, which, due to their incredible regeneration abilities, provide insights into stem cell regulation, cancer and tissue regeneration.

The planarian flatworm Schmidtea mediterranea is an extraordinary animal.

An important step towards this goal is the first highly contiguous genome assembly of Schmidtea mediterranea that researchers at the Max Planck Institute of Molecular Cell Biology and Genetics (MPI - CBG) in Dresden in cooperation with the Heidelberg Institute for Theoretical Studies (HITS) report in the current issue of Nature.

One of the surprises in the case of Schmidtea mediterranea was the likely absence of highly conserved genes such as MAD1 and MAD2.

Scientists have previously attempted to sequence the genome of Schmidtea mediterranea, but ended up with a collection of more than 100,000 short pieces.

The flatworm Schmidtea mediterranea can regenerate back into a complete organism from individual body parts.

The planarian Schmidtea mediterranea are flatworms with bilateral symmetry used as models in the research on cell regeneration and stem cells.

Schmidtea mediterranea, a flatworm native to southern Europe and Tunisia, turns from brown to white when exposed to sunlight for 24 or more hours, as scientists discovered when they were studying regeneration in the species.

Hofstenia also rejected the liver that is the dietary mainstay for Reddien's other model of regeneration, the planarian (Schmidtea mediterranea).

Intriguingly, Hofstenia and the planarian Schmidtea mediterranea — long the mainstay of Reddien's research — rely on similar molecular pathways to control regeneration despite having evolved separately over the course of roughly 550 million years.

Reddien's lab studies regeneration in the planarian Schmidtea mediterranea.

It didn't hurt that S. mediterranea is relatively easy to work with in the lab, and that it later turned out to perform functions with relatively few genes per function.

His current efforts are aimed at elucidating the molecular basis of regeneration using the free - living flatworm Schmidtea mediterranea.

C. Michael Hogan marked the classification from «Species 2000 & ITIS Catalogue of Life: April 2013» as preferred for «Persephona mediterranea (Herbst, 1794)».