Deinococcus

Deinococcus is in the formerly <a href="/facts/Monotypic/QvoM9aGP">monotypic</a> family Deinococcaceae, and one genus of three in the order Deinococcales of the bacterial phylum <a href="/facts/Deinococcota/8H2ssbW9">Deinococcota</a> highly resistant to environmental hazards. These bacteria have thick cell walls that give them <a href="/facts/Gram-positive/H6WYQ17e">Gram-positive</a> stains, but they also include a second membrane and are therefore closer in structure to <a href="/facts/Gram-negative/S1PbVtp4">Gram-negative</a> bacteria. Deinococcus survive when their DNA is exposed to high doses of gamma and UV radiation. Whereas other bacteria change their structure in the presence of radiation, such as by forming endospores, Deinococcus tolerate it without changing their cellular form and do not retreat into a hardened structure. They are also characterized by the presence of the carotenoid pigment deinoxanthin that give them their pink color. They are usually isolated according to these two criteria. In August 2020, scientists reported that <a href="/facts/Bacteria/wC8xSCsU">bacteria</a> from Earth, particularly Deinococcus bacteria, were found to survive for three years in <a href="/facts/Outer_space/R3LRKyFs">outer space</a>, based on studies conducted on the <a href="/facts/International_Space_Station/VNPUBz9m">International Space Station</a>. These findings support the notion of <a href="/facts/Panspermia/4MrcGDYb">panspermia</a>, the hypothesis that <a href="/facts/Life/DNw7NUId">life</a> exists throughout the <a href="/facts/Universe/lfoqc5m6">Universe</a>, distributed in various ways, including <a href="/facts/Space_dust/HPBf2gD7">space dust</a>, <a href="/facts/Meteoroid/5PexF2mR">meteoroids</a>, <a href="/facts/Asteroid/g7Ulr1VB">asteroids</a>, <a href="/facts/Comet/w34utQCd">comets</a>, <a href="/facts/Minor_planet/GxoaU532">planetoids</a> or <a href="/facts/Contamination/RC0L7KRy">contaminated</a> <a href="/facts/Spacecraft/YQqQaUw0">spacecraft</a>.

Deinococcus open-in-new

Deinococcus