title: [Nucleotide composition of the cold-sensitive heterochromatin regions of Paris hainanensis Merrill chromosomes].
abstract: Cold-induced decondensation of heterochromatic regions (CSR-bands) in Paris hainanensis (= Daiswa hainanensis Merrill Takht.) (2n = 10; 10 + b) was studied. The comparison of CSR-banding patterns with those obtained by nucleotide-specific staining with fluorochromes DAPI and chromomycin A3 demonstrated that low temperatures induced decondensation only of large AT-rich heterochromatic regions. It is suggested that this is characteristic of all plant species.
authors.affiliation: Komarov Botanical Institute, Russian Academy of Sciences, St. Petersburg, 197376 Russia. punina@EP2600.spb.edu
authors.forename: E O
authors.initials: EO
authors.lastname: Punina
authors.forename: A V
authors.initials: AV
authors.lastname: Rodionov
authors.forename: Iu A
authors.initials: IuA
authors.lastname: Miakoshina
authors.forename: V G
authors.initials: VG
authors.lastname: Grif
mesh_terms: D002871:Chromosome Banding; D003080:Cold Temperature; D018744:DNA, Plant / Q000235:genetics*; D006570:Heterochromatin / Q000235:genetics*; D019684:Magnoliopsida / Q000235:genetics*; D009711:Nucleotides / Q000235:genetics
chemical_list: D018744:DNA, Plant; D006570:Heterochromatin; D009711:Nucleotides