Latest Planarian Stories

2011-05-12 22:18:51

A seldom-studied gene known as notum plays a key role in the planarian's regeneration decision-making process, according to Whitehead Institute scientists. Protein from this gene determines whether a head or tail will regrow at appropriate amputation sites. Since the late 1800s, scientists have been fascinated by the planarian's amazing ability to regenerate its entire body from a small wedge of tissue. Whitehead Member Peter Reddien and former postdoctoral fellow Christian Petersen recently...

2010-10-13 11:11:56

A study of peptide hormones in the brain of a seemingly primitive flatworm reveals the surprising complexity of its nervous system and opens up a new approach for combating a major parasitic disease, researchers report. The study appears in the open-access journal PLoS Biology. The planarian flatworm, Schmidtea mediterranea, is perhaps best known for its prodigious powers of regeneration. Cut it in half (lengthwise or crosswise) and each fragment will regrow its missing parts, including its...

2010-04-23 13:25:00

Scientists at The University of Nottingham have discovered the gene that enables an extraordinary worm to regenerate its own body parts after amputation "” including a whole head and brain. Their research into the Planarian worm is another piece in the scientific jigsaw that could one day make the regeneration of old or damaged human organs and tissues a real possibility. The research led by Dr Aziz Aboobaker, a Research Councils UK Fellow in the School of Biology shows for the first...

2009-09-14 15:37:11

Amputations trigger a molecular response that determines if a head or tail will be regrown in planaria, a flatworm commonly studied for its regenerative capabilities. Until now, no molecular connection between wounding and the decision to regenerate either a head or tail in planaria had been identified. Whitehead Institute scientists report this finding in the September 15-28 issue of PNAS Early Edition. Regeneration is the regrowth of part of an organism's body after it has been damaged or...

2009-07-21 18:30:00

Planarian flatworms are only a few millimeters up to a few centimeters in length, live in freshwater and are the object of intense research, because they possess the extraordinary ability to regenerate lost tissue with the help of their stem cells (neoblasts) and even grow an entirely new worm out of minute amputated body parts. Now researchers from the Max Delbrck Center in Berlin, Germany together with researchers in the US and Canada present the first comprehensive catalogue of small RNAs...

2008-09-22 15:00:53

A U.S. study shows a key genetic pathway for cell growth and division is similar in both humans and flatworms, or planarians. Planarians, normally living in freshwater, are known for their ability to regenerate. A planarian cut into 200 pieces can generate 200 new individuals. Now research suggests the planarian can help scientists understand the basis of human development and disease. Scientists at the University of Utah and the Forsyth Institute at Harvard University report planaria...

2008-09-20 07:49:18

Key genetic pathways for cell growth and division are similar in both humans and the invertebrate master of regeneration -- the planarian Any way you slice it, the planarian's contributions to biological research just keep on growing. The planarian, a flatworm normally living in freshwater, is well known for its amazing ability to regenerate "“ a single planarian cut into 200 pieces can generate 200 new individuals. New research now demonstrates that the planarian is not merely a...

Word of the Day
  • The prevailing range of a vocal or instrumental part, within which most of the tones lie.
This word is Italian in origin and comes from the Latin 'textura,' web, structure.