Battista J R, Earl A M, Park M J
Dept of Biological Sciences, 508 Life Sciences Bldg, Louisiana State University and A & M College, Baton Rouge, LA 70803, USA.
Trends Microbiol. 1999 Sep;7(9):362-5. doi: 10.1016/s0966-842x(99)01566-8.
When exponential-phase cultures of Deinococcus radiodurans are exposed to a 5000-Gray dose of gamma radiation, individual cells suffer massive DNA damage. Despite this insult to their genetic integrity, these cells survive without loss of viability or evidence of mutation, repairing the damage by as-yet-poorly-understood mechanisms.
当耐辐射球菌的指数生长期培养物受到5000戈瑞剂量的伽马辐射时,单个细胞会遭受大量DNA损伤。尽管其基因完整性受到这种损害,但这些细胞仍能存活,且没有活力丧失或突变迹象,它们通过尚未完全了解的机制修复损伤。