Are SCE frequencies indicative of adaptive response of plant cells?
作者信息
Schubert I, Heindorff K
机构信息
Zentralinstitut für Genetik und Kulturpflanzenforschung, Gatersleben G.D.R.
出版信息
Mutat Res. 1989 Apr;211(2):301-6. doi: 10.1016/0027-5107(89)90013-4.
PMID:2494443
Abstract
Low-dose pretreatments with maleic hydrazide, mitomycin C, and N-methyl-N-nitrosourea or sublethal heat shock were tested with regard to their effect on sister-chromatid exchange (SCE) induction by high doses of the same mutagens administered 2 h later to root-tip meristems of Vicia faba. Consecutive treatments resulted in either additive or, in a minority of experiments, in below-additive SCE frequencies. A model is proposed to explain the conflicting data reported on adaptation to SCE and aberration induction.
摘要
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