Green sea slugs aren’t solar powered after all - solar powered street lights
There are several species that eat large, single-celled algae and hold on to the mitochondrial matter of algae that turn plant cells Green and turn light into energy.
The sea sluslu kept the pieces for at least a few weeks until they were digested.
The four sea slug worm species retain the mitochondrial of the digestive gland for several months, which makes the sea slu worm Green and stimulates one of their early nicknames, "crawling leaves ".
Another nickname is "solar energy-
Because scientists believe that sluslu can use the mitochondrial to create energy for them to live through hunger.
However, Sven Gould of Heinrich heinner has disappointed fans of the sea slug teams around the world --
The University of duseldorf, Germany, and his colleagues found that at least two of the four species had no sunlight.
They published it in November 20.
Ais is just part of the cellular machinery necessary to turn sunlight into energy.
The gene fragments of this process are made up of a small fraction of the genetic material, but most of the genes responsible for producing the necessary protein are present in the nucleus of the algae.
In order for the Sea sluslu to take advantage of the mitochondrial energy they get, they need these nuclear genes.
On some fragments of this energy, only one sea slug worm was found --
Make a puzzle, but even so, it may not be enough to put the whole puzzle together.
The researchers could not find any genes involved in the other two species.
However, there is already attractive evidence that the cell pigment does work.
Studies tracking carbon suggest that the sea sluslu is absorbing some elements from the atmosphere.
Slugs can survive for a few months without food.
The scientists concluded that maybe they really got the help of the sun.
Gould and his colleagues decided to pick evidence for both species step by step.
They look for genes that keep photosynthesis going.
They haven't found it either.
They then repeated the carbon experiment and found, yes, that the mitochondrial continued to absorb carbon dioxide in the presence of light, suggesting that they were still working.
However, when the team conducted the sea sluslu through the hunger experiment, the results showed that the sea sluslu did not utilize any of the mitochondrial energies.
The rhinoplasty, divided by the researchers, was divided into three groups, all starved to death.
There is a group of people living in the light.
The second group lives in the dark, a natural way to cut off photosynthesis.
The photosynthesis of the third group was chemically cut off.
The best sign of a hungry nose slug worm is a weight loss.
If the sea sluslu gets extra help from photosynthesis, then the first group should lose the least weight.
But after 49 days, all slugs showed the same weight loss effect.
Weight measurement is less reliable because it turns out that they are difficult to handle, but their survival does not seem to depend on the light either.
"As far as basic nutrition is concerned, slugs are clearly not 'solar at all, 'the researchers wrote '.
"The researchers say these mitochondrial seems to be just a colorful way to store food.
Although they haven't repeated their experiments on the other two "solar"
The researchers are not optimistic that either of these two species will be driven by the sun. sun either.