Glenn Møller-Holst
2007-05-24 18:02:47 UTC
Det hævdes at nogle svampe kan omdanne radioaktiv stråling til kemisk
energi via molekylet melanin - ligesom klorofyl anvendes til at omdanne
kemisk energi ud af sollys:
May 23, 2007 'Radiation-eating' Fungi Finding Could Trigger
Recalculation Of Earth's Energy Balance And Help Feed Astronauts:
http://www.sciencedaily.com/releases/2007/05/070522210932.htm
Citat: "...
Earth's energetics--in particular, the amount of radiation energy being
converted to biological energy--may need to be recalculated," says Dr.
Arturo Casadevall, chair of microbiology & immunology at Einstein and
senior author of the study, published May 23 in PLoS ONE.
...
"Since ionizing radiation is prevalent in outer space, astronauts might
be able to rely on fungi as an inexhaustible food source on long
missions or for colonizing other planets," says Dr. Ekaterina Dadachova,
associate professor of nuclear medicine and microbiology & immunology at
Einstein and lead author of the study.
...
"Just as the pigment chlorophyll converts sunlight into chemical energy
that allows green plants to live and grow, our research suggests that
melanin can use a different portion of the electromagnetic
spectrum--ionizing radiation--to benefit the fungi containing it," says
Dr. Dadachova.
...
Dr. Casadevall notes that the melanin in fungi is no different
chemically from the melanin in our skin.
..."
May 23, 2007, Radiation-hungry fungi could clean up waste:
http://www.cbc.ca/technology/story/2007/05/23/science-fungi-radiation.html?ref=rss
-
Andre organismer der har en høj tolerance overfor radioaktiv stråling:
February 3, 2003, Gene Vital To Radiation Resistance In Bacteria:
http://www.sciencedaily.com/releases/2003/02/030203071602.htm
Citat: "...With a name that literally means "strange berry that can
withstand radiation," D. radiodurans is the world's most radiation
resistant organism, able to survive up to 1.5 million rads, over 1000
times more radiation than practically any other organism...."
http://en.wikipedia.org/wiki/Deinococcus_radiodurans
Citat: "...Deinococcus is genetically and biochemically quite similar to
other terrestrial life forms, arguing against an extraterrestrial origin..."
-
(tysk):
http://de.wikipedia.org/wiki/Chroococcidiopsis
Citat: "...Chroococcidiopsis toleriert hohe Strahlung, extreme
Temperaturen, Austrocknung, osmotischen Stress und extreme pH-Werte. Zum
Überleben sind lediglich Licht, Kohlendioxid, ein Minimum an Wasser und
Spurenelemente notwendig..."
/Glenn
energi via molekylet melanin - ligesom klorofyl anvendes til at omdanne
kemisk energi ud af sollys:
May 23, 2007 'Radiation-eating' Fungi Finding Could Trigger
Recalculation Of Earth's Energy Balance And Help Feed Astronauts:
http://www.sciencedaily.com/releases/2007/05/070522210932.htm
Citat: "...
Earth's energetics--in particular, the amount of radiation energy being
converted to biological energy--may need to be recalculated," says Dr.
Arturo Casadevall, chair of microbiology & immunology at Einstein and
senior author of the study, published May 23 in PLoS ONE.
...
"Since ionizing radiation is prevalent in outer space, astronauts might
be able to rely on fungi as an inexhaustible food source on long
missions or for colonizing other planets," says Dr. Ekaterina Dadachova,
associate professor of nuclear medicine and microbiology & immunology at
Einstein and lead author of the study.
...
"Just as the pigment chlorophyll converts sunlight into chemical energy
that allows green plants to live and grow, our research suggests that
melanin can use a different portion of the electromagnetic
spectrum--ionizing radiation--to benefit the fungi containing it," says
Dr. Dadachova.
...
Dr. Casadevall notes that the melanin in fungi is no different
chemically from the melanin in our skin.
..."
May 23, 2007, Radiation-hungry fungi could clean up waste:
http://www.cbc.ca/technology/story/2007/05/23/science-fungi-radiation.html?ref=rss
-
Andre organismer der har en høj tolerance overfor radioaktiv stråling:
February 3, 2003, Gene Vital To Radiation Resistance In Bacteria:
http://www.sciencedaily.com/releases/2003/02/030203071602.htm
Citat: "...With a name that literally means "strange berry that can
withstand radiation," D. radiodurans is the world's most radiation
resistant organism, able to survive up to 1.5 million rads, over 1000
times more radiation than practically any other organism...."
http://en.wikipedia.org/wiki/Deinococcus_radiodurans
Citat: "...Deinococcus is genetically and biochemically quite similar to
other terrestrial life forms, arguing against an extraterrestrial origin..."
-
(tysk):
http://de.wikipedia.org/wiki/Chroococcidiopsis
Citat: "...Chroococcidiopsis toleriert hohe Strahlung, extreme
Temperaturen, Austrocknung, osmotischen Stress und extreme pH-Werte. Zum
Überleben sind lediglich Licht, Kohlendioxid, ein Minimum an Wasser und
Spurenelemente notwendig..."
/Glenn