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Latest Instituto Gulbenkian de Ciencia Stories

Ants Grow Their Thoracic Segments To Match The Tasks They Perform
2014-01-07 07:22:27

Instituto Gulbenkian de Ciencia It has now been discovered that the specialization of queen and worker ants goes beyond the presence or absence of wings. In a study published in the open access scientific journal eLife, Roberto A. Keller and Patrícia Beldade from the Instituto Gulbenkian de Ciência (IGC, Portugal), in collaboration with Christian Peeters from Université Pierre et Marie Curie (France), showed that ants grow the size of their thoracic segments differently according to the...

Study Explores Evolution Of Bacteria That Can Be Used To Fight Dengue
2013-12-16 12:43:03

Instituto Gulbenkian de Ciencia Wolbachia, a symbiont that resides naturally up to 70% of all insect species, are probably the most prevalent infectious bacteria on Earth. In 2008 Luis Teixeira, now a principal investigator at the Instituto Gulbenkian de Ciência (IGC, Portugal), and other scientists have discovered that Wolbachia can protect their hosts against viral infections. Since then, several studies have been made to further investigate the interactions between Wolbachia and...

Mechanisms Behind Trunk To Tail Transition In Vertebrates Revealed In New Study
2013-06-11 11:22:04

Instituto Gulbenkian de Ciencia One of the most remarkable anatomical differences among vertebrate bodies is the relative size of their neck, trunk and tail. This can be illustrated by comparing the bodies of a typical snake and of a long tailed lizard. They are both very long and superficially similar. However, most of the snake's body is a trunk full with organs of the digestive, excretory and reproductive systems, whereas the largest part of the lizard's body is a muscular tail. These...

2012-02-27 11:28:39

How subverting the immune system shapes the arms race between bacteria and hosts Why is it that Mycobacterium tuberculosis can cause tuberculosis with as little as 10 cells, whereas Vibrio cholerae requires the host to ingest up to tens of millions of cells to cause cholera? This is the question that two research teams, from the Pasteur Institute, in France, and the Instituto Gulbenkian de Ciencia and the University of Lisbon, in Portugal, answer in the latest issue of the journal PLoS...

2010-09-30 14:49:12

Instituto Gulbenkian de Ciencia researchers find unusual suspect holds the secret for new approach to treat severe sepsis Severe sepsis, a disease characterised by a sudden drop in blood pressure and progressive organ dysfunction following infection, remains one of the most common causes of mortality in intensive care units worldwide. Even under the best possible medical conditions, mortality rates range between 30 and 70%. A research team from the Instituto Gulbenkian de...

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2010-05-14 07:39:49

Researchers in Portugal and Austria show how food intake is modulated in fruit flies Having a balanced diet is a vital concern to all living organisms, not only humans. Animals choose between different food sources according to their nutritional needs. In a study just published in the journal Current Biology, Carlos Ribeiro, group leader in the Champalimaud Neuroscience Program at the Instituto Gulbenkian de Ciência (Portugal), and Barry Dickson, at the Institute of...

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2010-04-27 12:15:00

Instituto Gulbenkian de Ciencia researchers reveal process of making ribs Like all vertebrates, snakes, mice and humans have in common a skeleton made of segments, the vertebrae. But a snake has between 200-400 ribs extending from all vertebrae, from the neck to the tail-end, whereas mice have only 13 pairs of ribs, and humans have 12 pairs, in both cases making up the ribcage. In the latest issue of Developmental Cell(*), researchers from the Instituto Gulbenkian de...

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2009-07-01 10:25:00

Lars Jansen's work on the formation of the centromere, a key cellular structure in powering and controlling chromosome segregation and accurate cell division, has just earned him a paper in Nature Cell Biology and a prestigious EMBO installation grant, of 50,000 euro per year, for a maximum of five years.Lars Jansen moved from California to the Instituto Gulbenkian de Ciência (IGC), in Portugal, last year to head the Epigenetic Mechanisms group. The Nature Cell Biology...

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2009-01-12 08:59:56

Instituto Gulbenkian de Ciencia scientists turn back clock on evolution in fruit fly to provide key insights into basic mechanisms of evolution In his book, Wonderful World, Stephen Jay Gould writes about an experiment of 'replaying life's tape', wherein one could go back in time, let the tape of life play again and see if 'the repetition looks at all like the original'. Evolutionary biology tells us that it wouldn't look the same "“ the outcome of evolution is contingent on everything...

2008-12-19 10:53:14

Scientists at the Instituto Gulbenkian de Ciencia (IGC) and the Faculty of Science of the University of Lisbon, in Portugal, have shown that populations of the worm Caenhorabditis elegans become resistance to pesticides in 20 generations, that is, in only 80 days.These findings, published last month in the journal PLoS ONE(*) open the way for future research into improved use of pesticides and antibiotics in pest and parasite control.Patrícia Lopes and co-workers followed 20...