Some aspects of the plant radioresistance.
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 futures are typical for investigated strains. There are several features typical for radioresistant mutant strains investigated by us: in some cases a relationship was found between radioresistance and ssb-DNA repair efficiency; a high level of SH-groups; SOD; pigments content, especially carotenoids and chlorophyll a; a lower level of Pro content; a stability of the ultrastructural cell components or/and of the presence and structure of the cell envelope.
Chankova
S G
SG
Central Laboratory of General Ecology-Bulgarian Academy of Sciences, Sofia, Bulgaria. steph.ch@ecolab.bas.bg
Kapchina
V M
VM
Stoyanova
D P
DP
D000818:Animals; D002696:Chlamydomonas / Q000528:radiation effects*; D002708:Chlorella / Q000528:radiation effects*; D004260:DNA Repair; D004277:DNA, Single-Stranded / Q000528:radiation effects; D009154:Mutation; D011836:Radiation Tolerance
D004277:DNA, Single-Stranded