Researchers in Germany have genetically modified fruitfly larvae so that they can smell light. The team, led by Klemens Störtkuhl of Ruhr University in Bochum, Germany, managed to change the larvae’s odour receptors so that they respond to blue light instead of smells. The researchers hope that the move will allow them to unravel the way in which the larvae detect and interpret smells.
Read the rest of this news story on Nature News [html] or here [pdf]
The propeller-driven six-seater churns straight toward the brown plume over Eyjafjallajökull, unlike other aircraft taking off from Reykjavík airport. Inside, accompanied by a seasoned pilot, sits Björn Oddsson, a graduate student at the University of Iceland, entrusted with an infrared sensor derived from military bombing systems. But the only bombs Oddsson talks about are the lava boulders erupting from the volcano 80 miles away.
As they approach the volcano Oddsson opens the window so that the infrared sensor can function properly. A frigid wind whips in, chilling the cabin to near-Arctic temperatures, but Oddsson doesn’t mind; he is focused on calibrating the temperature scale on the device. The sensor, which looks like a video camera, is still relatively new and he’s eager to get it right. His supervisors expect him to report his findings at a briefing the next afternoon, April 19, the sixth day of the present eruption.
This year, midway through Argentina’s 2005–2015 Strategic Plan for Biotechnology, a long-stalled update of the Seed Law circulating in Buenos Aires may finally reach the legislative floor. The current law, which facilitated the rapid boom of transgenic crops in Argentina in the 1990s—60% of Argentina’s soy crop was genetically modified for herbicide resistance within three years of the introduction of Roundup Ready soy—is a source of conflict over intellectual property rights, as it permits farmers to retain seeds without paying royalties.
However, the meteoric rise in GM crop production was not solely the function of the seed law. Compatible agricultural practices in the early 1990s and a welcoming government contributed. Critics and fans alike say it’s a model from which other developing countries can learn important lessons. Continue reading How green biotech turned white and blue
Many families along Iceland’s fertile southern coast can spin a good yarn about a close escape from an exploding volcano. Take Kristín Vogförð’s grandfather, who was tending sheep on the eastern slopes of Katla when it erupted in 1918, melting glacial ice and violently flooding the rivers and fields below. According to an account by the geophysicist from the Icelandic Meteorological Office (IMO), he and the other shepherds rode their tough Icelandic horses through icy waters to safety. Unfortunately, his sheep were not so lucky.
In April, I joined a group of Icelandic volcano experts on a field trip to study rocks, gases and river runoff from Eyjafjallajökull. I witnessed modern escapes and came away impressed by how much Iceland’s scientists are doing to learn all they can from the latest eruptions, which have already begun to take a large toll on the small country’s tourism and agriculture industries.
Read the rest of my essay for Global Talent, a Catalan science service, in English [html] [pdf], Spanish [html] [pdf], or Catalan [html] [pdf].
