[In situ distribution and configuration of rDNA in the nucleolus of Pisum sativum].
Distribution and configuration of nucleolar DNA in the nucleolus of pea (Pisum sativum) were analyzed using cytochemical NAMA-Ur DNA specific stain method. The results showed that nucleolar DNA distributed in FC and juncture of FC/DFC in the forms of surrounding FC. rDNA in different positions existed in either condensed or uncondensed forms. Nucleolus-associated chromatin outside nucleolus extended in the periphery of FC via channels in the nucleolus.
College of Life Sciences, Nankai University, Tianjin 300071.
Hong
H
Long
Hai Jing
HJ
Sun
Xian Lu
XL
Zeng
Ming Da
MD
Jiao
Shui
S
Hao
D002466:Cell Nucleolus / Q000737:chemistry / Q000235:genetics* / Q000648:ultrastructure; D002843:Chromatin / Q000648:ultrastructure; D018744:DNA, Plant / Q000032:analysis*; D004275:DNA, Ribosomal / Q000032:analysis*; D008854:Microscopy, Electron; D018532:Pisum sativum / Q000235:genetics* / Q000648:ultrastructure; D018517:Plant Roots / Q000235:genetics / Q000648:ultrastructure
D002843:Chromatin; D018744:DNA, Plant; D004275:DNA, Ribosomal