抄録
Biochemical analyses with DNA and histones extracted from ovules of cold treated Trillium and of the control were undertaken.
When the DNA fraction of cold treated plants was treated with sequential RNase-trypsin-chloroform procedure after SDS-phenol extraction, supplemental minor peaks in MAK-column chromatographical profile were detected.
Histones extracted from cold treated plants were different from those of the control in a high ratio of p-histone/s-histone and in the relative ratios of the fractions separated by CMC-column chromatography.
A possible relationship between differential staining of heterochromatin in the mitotic chromosomes and these biochemical phenomena was discussed.
