Published March 1984 | Version v1
Journal article Metadata-only

Repair of X-ray-induced single-strand breaks in root tips of Tradescantia clones 02 and 4430

Creators

  • 1. Ceskoslovenska Akademie Ved, Prague. Ustav Experimentalni Botaniky
  • 2. Brookhaven National Lab., Upton, NY (USA)

Description

DNA repair in root tips of Tradescantia clones 02 and 4430 was measured by velocity sedimentation of radioactively labeled DNA obtained by the lysis of rapidly isolated nuclei placed on top of alkaline sucrose gradients. In root cells of both clones, DNA single-strand breaks induced by 10 and 20 kR of X-rays (irradiation in air) were rapidly repaired at 220C. 50% of the breaks were repaired within 7-10 min and 20 min in clones 02 and 4430 respectively. In both clones, breaks were induced with an efficiency of about 1 break per 80 eV. (orig.)

Additional details

Publishing Information

Journal Title
Mutat. Res.
Journal Volume
131
Journal Issue
3-4
Series
Mutat. Res.
Journal Page Range
143-146
ISSN
0027-5107
CODEN
MUREA

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
17012452
Subject category
S63: RADIATION, THERMAL, AND OTHER ENVIRONMENTAL POLLUTANT EFFECTS ON LIVING ORGANISMS AND BIOLOGICAL MATERIALS;
Descriptors DEI
DNA REPAIR; ROOTS; SEDIMENTATION; STRAND BREAKS; TRADESCANTIA; X RADIATION
Descriptors DEC
BIOLOGICAL RECOVERY; BIOLOGICAL REPAIR; ELECTROMAGNETIC RADIATION; IONIZING RADIATIONS; PLANTS; RADIATIONS

Optional Information

Notes
15 refs.; 2 figs.