Published September 2000 | Version v1
Journal article Metadata-only

Some aspects of the plant radioresistance

Creators

  • 1. Central Lab. of General Ecology - Bulgarian Academy of Sciency, Sofia (Bulgaria)
  • 2. Sofia Univ., Faculty of Biology, Sofia (Bulgaria)

Description

Mutant strains of unicellular green algae - Chlorella and Chlamydomonas which differ in their radioresistance have been investigated at different levels: cellular, molecular, biochemical and ultrastructural. It is obtained that several features are typical for investigated strains. There are several features typical for radioresistant mutant strains investigated. In some cases a relationship was found between radioresistance and DNA single-strain breaks repair efficiency; a high level of SH-groups; SOD; pigments content, especially carotenoids and chlorophyll A; a lower level of proline content; stability of the ultrastructural cell components or/and of the presence and structure of cell envelope

Abstract (Russian)

Мутагенные штаммы одноклеточных зеленых водорослей Chlorella и Chlamydomonas, различающиеся по радиоустойчивости, исследовались на разных уровнях: клеточном, молекулярном, биохимическом и ультраструктурном. Показано, что исследованные штаммы имеют несколько типичных особенностей. Существует ряд черт, типичных для исследованных радиоустойчивых мутанных штаммов. В некоторых случаях была обнаружена взаимосвязь между радиоустойчивостью и эффективностью репарации однонитевых разрывов ДНК, высоким уровнем SH-групп, СОД, содержанием пигментов, особенно каратиноидов и хлорофилла А, пониженным уровнем содержания пролина, стабильностью ультраструктурных клеточных компонентов или/и наличием и структурой клеточной оболочки

Additional details

Publishing Information

Journal Title
Radiatsionnaya Biologiya, Radioehkologiya
Journal Volume
40
Journal Issue
5
Journal Page Range
p. 535-543
ISSN
0869-8031

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
32053898
Subject category
S63: RADIATION, THERMAL, AND OTHER ENVIRONMENTAL POLLUTANT EFFECTS ON LIVING ORGANISMS AND BIOLOGICAL MATERIALS;
Descriptors DEI
CELL MEMBRANES; CHLAMYDOMONAS; CHLORELLA; DNA; DNA REPAIR; DOSE-RESPONSE RELATIONSHIPS; GAMMA RADIATION; GENETIC RADIATION EFFECTS; MUTANTS; PIGMENTS; PLANT CELLS; PROLINE; RADIATION DOSES; RADIOSENSITIVITY; STRAND BREAKS; SUPEROXIDE DISMUTASE; SURVIVAL CURVES
Descriptors DEC
ALGAE; AMINES; AMINO ACIDS; AZOLES; BIOLOGICAL EFFECTS; BIOLOGICAL RADIATION EFFECTS; BIOLOGICAL RECOVERY; BIOLOGICAL REPAIR; CARBOXYLIC ACIDS; CELL CONSTITUENTS; CHLOROPHYCOTA; DNA DAMAGES; DOSES; ELECTROMAGNETIC RADIATION; ENZYMES; GENETIC EFFECTS; HETEROCYCLIC ACIDS; HETEROCYCLIC COMPOUNDS; IONIZING RADIATIONS; MEMBRANES; MICROORGANISMS; NUCLEIC ACIDS; ORGANIC ACIDS; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; OXIDOREDUCTASES; PLANTS; PROTEINS; PYRROLES; PYRROLIDINES; RADIATION EFFECTS; RADIATIONS; REPAIR; UNICELLULAR ALGAE

Optional Information

Notes
43 refs., 4 figs., 6 tabs.