Sentences with word «planarian»

«Tissue loss triggers regeneration in planarian flatworms.»

Researchers led by the Allen Discovery Center at Tufts University sought to determine how microgravity and micro-geomagnetic fields would affect the growth and regeneration of planarian flatworms (D. japonica) and whether any changes would persist after the worms returned to earth.

«First complete genome assembly of planarian flatworm reveals treasure trove on function and evolution of genes.»

We use freshwater planarians as models to study regeneration, germ cells, and to help us understand parasitic flatworms.

Further, the Rink group has assembled a large collection of planarian species from around the world, many of which have lost the ability to regenerate.

«Therefore — says the expert — , the results of our study with planarians describes one of the first genes of these animals that is necessary for early brain regeneration and anterior regeneration.»

This is the only land planarian in the» 100 worst invasive alien species» list and it has now been found in additional localities including islands in the Pacific area, Puerto Rico, the first record in the Caribbean, and the first report in mainland U.S., in Florida.

«Key gene in early brain regeneration in planarians described by scientists.»

Our results establish planarians as an experimentally tractable animal model for research into the pathophysiology of acute porphyrias, and potentially for the identification of novel pharmacological interventions capable of alleviating porphyrin - mediated photosensitivity or decoupling dieting and fasting from disease pathogenesis.

This very interesting manuscript describes remarkable parallels between planarian photosensitivity and that observed in human porphyrias.

Reactivating head regrowth in a regeneration - deficient planarian species.

But while researchers carefully documented, for example, exactly what happens if you cut planarians into quarters, the underlying mechanisms remained entirely mysterious.

Insights gained from our basic research on planarian biology have also led us to study parasitic flatworms, like schistosomes and tapeworms.

Taking part in the award for the second time this year, Felipe Meres, inaugurates «The Telomeric Cuts», which parts from a series of micrographs representing the process of cutting and regenerating hermaphroditic planarian flatworms.

The researchers intend for their work to help establish protocols for performing planarian research in space by determining proper transfer logistics and conditions for future missions.

The development of methods to remove pigmentation from planarians could have significant impacts on tool development in that field, and the connection to human porphyrias makes a compelling case for additional studies of this system.

«Polarized activation of notum at wounds inhibits Wnt signaling to promote planarian head regeneration»

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.

This image shows the progression of lesions and tissue resorption in planarians when exposed to pathogenic bacteria.

The land planarian Platydemus manokwari, or New Guinea flatworm, is a highly invasive species, already reported in many territories in the Pacific area, and as well as in France.

But Jochen Rink and his group are especially excited about using the genome assembly for understanding how planarians manage to regenerate from an arbitrary tissue piece.

Even when cut into tiny pieces, each piece can regenerate back into a complete and perfectly proportioned miniature planarian.

Yet despite the MAD1 / 2 gene loss, planarians retained the checkpoint function.

Over the years scientists have learned that planarians mount recovery responses that differ depending on the severity of the injury they suffer.

Through the systematic analysis of ommochrome and porphyrin biosynthetic pathways, the authors identified several genes required for producing planarian pigment.

Through a series of dissections, Reddien and Srivastava established that Hofstenia not only regenerate their heads, but, like planarians, are also able to regrow any body part.

Research in the Newmark laboratory utilizes the tools of molecular cell biology and functional genomics to address several major biological problems for which planarians serve as excellent models.

As a proof - of - principle for working with non-model planarians, we demonstrated that the posterior head regeneration defect in the species D. lacteum is due to miss - regulation of Wnt - signaling and that alterations of pathway activity can rescue head regeneration.

New planarian tissues and organs are created by neoblasts - adult stem cells that share certain characteristics with embryonic stem cells and can differentiate into essentially all the cells in adult animals.

Reddien led the first high - throughput RNAi screen of planarian genes during regeneration, with results published this May in Developmental Cell.

Take one live planarian flatworm.

Biology and difference are also a key element in Fsision, a 2015 film by Brazilian - born, New York - based Felipe Meres, in which he analyzes the life of microscopic planarians as a means to reconsider the boundaries of gender forms and sexualized matters in nature.

Liu, C. Selck, B. Friedrich, R. Lutz, M. Vila - Farré, A. Dahl, H. Brandl, N. Lakshmanaperumal, I. Henry & J. C. Rink Reactivating head regrowth in a regeneration - deficient planarian species.

As discussed below, this provides new insight into pigment biosynthesis in the Platyhelminthes (flatworms) and establishes planarians as a useful animal model for porphyria research.

(That finding, by the way, comes from Thomas Hunt Morgan, who gave up on planarian regeneration studies in frustration and turned to his pioneering work in the genetics of fruit flies.)

Rehearsing the language of scientific objectivity, the film provides a colored take on the movements and gestures of hermaphroditic planarians — critters with an unusual ability to regenerate lost body parts and to divide themselves into differentiated entities.

Rozario studies tapeworms, the parasitic cousins of freshwater planarians.

Whitehead team analyzes transcriptomes for roughly 70,000 cells in planarians, creates publicly available database to drive research in a variety of organisms and fields

«I find that there is no evidence, even with this large dataset, for Hofstenia to be classified with planarians, which means the last common ancestor that these two species shared existed 550 million years ago.

Our lab studies the astonishing regenerative abilities of planarian flatworms.

Biologically simple they may be, but planarian flatworms have evolved two completely different ways to detect light — and one doesn't involve their heads

The planarians (flat worms) can be cut into 50 pieces and you will end up with 50 smaller worms.

The planarians (flat worms) can be cut into 50 pieces and you will end up with 50 smaller worms.

The planarian flatworm Schmidtea mediterranea is an extraordinary animal.

In any case, «the traditional hypothesis about the dependence of regeneration and the nervous system is also proved in planarians,» concludes, Cebrià.

In the case of planarians, the gene egr - 4 seems to perform an early control of cell proliferation as a response to amputation, and be involved later in the early differentiation of brain during regeneration.

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

Furthermore, if defines a hypothetic model in which early brain regeneration is crucial to guarantee anterior regeneration in planarians.

Tissue regeneration is a highly complex process studied by international research groups in different animal models (planarian, zebra fish, newt, axoloti, Hydra, etc.).