14 March 2009

Mosquitoes to Mars?

A few weeks ago, RIA Novosti reported on a type of mosquito that seems preadapted to the possibility of suspended animation during long space flights.
Cosmonauts who might fly to the Red Planet are learning how to survive in a forest outside Moscow. Scientists from the Russian Academy of Sciences' Institute of Medical and Biological Problems are assessing the impact of cosmic radiation on living organisms, one of which even managed to survive in outer space.

Anatoly Grigoryev, vice president of the Russian Academy of Sciences, told RIA Novosti that a mosquito had managed to survive in outer space. First, it appeared that Grigoryev was talking about a spider running loose aboard the International Space Station. Incredibly, a mosquito slept for 18 months on the outer ISS surface. "We brought him back to Earth. He is alive, and his feet are moving," Grigoryev said.

The mosquito did not get any food and was subjected to extreme temperatures ranging from minus 150 degrees Celsius in the shade to plus 60 degrees in the sunlight.

Grigoryev said the insect had been taken outside the ISS on orders from the Institute's scientists working on the Biorisk experiment. "First, they studied bacteria and fungi till a Japanese scientist suggested studying mosquitoes," Grigoryev told RIA Novosti....

"Professor Takashi Okuda from the National Institute of Agro-Biological Science drew our attention to the unique, although short-lived, African mosquito (bloodworm), whose larvae develop only in a humid environment," Grigoryev said.

Rains are rare in Africa, where puddles dry up before one's eyes. However, this mosquito is well-adapted to adverse local conditions, existing in a state of suspended animation when vital bodily functions stop almost completely.

When suspended animation sets in, water molecules are replaced by tricallosa sugar, which leads to natural crystallization. The larvae were then sprayed with acetone, boiled and cooled down to minus 210 degrees Celsius, the temperature of liquid nitrogen. Amazingly, they survived all these hardships.

The Japanese also studied bloodworm DNA and found that it could be switched on and deactivated in 30 to 40 minutes. "This is facilitated by the crystallization of biological matter," Doctor of Biology Vladimir Sychev from the Institute of Medical and Biological Problems told RIA Novosti.
If Anopheles mosquitoes can do the same, it may not take long for the first humans settlers on Mars to melt some of its ice and turn barren landscapes into malarial swamps.

via Japundit

1 comment:

tim said...

How about sending all of Earth’s mosquitoes to Mars? If they can survive in space, I’m sure they would be fine on Mars. Until this happens, I’ll still have to get mosquito traps. Has anyone heard if those new Mosquito Magnet traps are effective?