Gamma-irradiated onions as a biological indicator of radiation dose.
Post-irradiation identification and dose estimation are required to assess the radiation-induced effects on living things in any nuclear emergency. In this study, radiation-induced morphological/cytological changes i.e., number of root formation and its length, shooting length, reduction in mitotic index, micronuclei formation and chromosomal aberrations in the root tip cells of gamma-irradiated onions at lower doses (50-2000 cGy) are reported. The capabilities of this biological species to store the radiation-induced information are also studied.
Vaijapurkar
S G
SG
Defence Laboratory, Jodhpur, India. vaijapurkar@yahoo.com
Agarwal
D
D
Chaudhuri
S K
SK
Senwar
K R
KR
Bhatnagar
P K
PK
D002453:Cell Cycle / Q000528:radiation effects; D002869:Chromosome Aberrations; D004307:Dose-Response Relationship, Radiation; D005720:Gamma Rays; D048629:Micronuclei, Chromosome-Defective / Q000528:radiation effects*; D008938:Mitosis / Q000528:radiation effects*; D008940:Mitotic Index; D019697:Onions / Q000166:cytology / Q000254:growth & development / Q000528:radiation effects*; D018518:Plant Root Cap / Q000254:growth & development / Q000528:radiation effects; D018517:Plant Roots / Q000254:growth & development / Q000528:radiation effects; D018520:Plant Shoots / Q000254:growth & development / Q000528:radiation effects; D011829:Radiation Dosage