The influence of amino acid prestarvation on both the resistance to u.v. and the postirradiation repair synthesis of E. coli 15 T ‐ 555‐7 thy meth arg trp and E. coli B/r (HCR + ) was followed. Prestarvation increased the number of survivors about 30–100 fold in both strains at doses 600‐1200ergs/mm 2 . In contrast to survival no increase in repair synthesis was observed. Thus, the increase in survival has to be brought about by a mechanism which seems to be independent of additional repair synthesis.
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Sedliaková et al. (1970) studied this question.
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