NDLI: The reaction of Lupinus angustifolius L. root meristematic cell nucleoli to lead

Content Provider	Springer Nature Link
Author	Balcerzak, Łucja Glińska, Sława Godlewski, Mirosław
Copyright Year	2010
Abstract	The effect of 2–48 h treatment of Lupinus angustifolius L. roots with lead nitrate at the concentration of 10−4 M on the nucleoli in meristematic cells was investigated. In the lead presence the number of ring-shaped as well as segregated nucleoli increased especially after 12–48 h of treatment, while spindle-shaped nucleoli appeared after 24 h and 48 h. Lead presence also increased the frequency of cells with silver-stained particles in the nucleus and the number of these particles especially from the 12th hour of treatment. It was accompanied by significant decline of nucleolar area. Analysis of these cells in transmission electron microscope confirmed the presence of ring-shaped and segregated nucleoli. Moreover, electron microscopy revealed compact structure nucleoli without granular component. Additionally, one to three oval-shaped fibrillar structures attached to nucleolus or lying free in the nucleoplasm were visible. The possible mechanism of lead toxicity to the nucleolus is briefly discussed.
Starting Page	353
Ending Page	361
Page Count	9
File Format	PDF
ISSN	0033183X
Journal	Protoplasma
Volume Number	248
Issue Number	2
e-ISSN	16156102
Language	English
Publisher	Springer Vienna
Publisher Date	2010-07-13
Publisher Place	Vienna
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Lead Stress Nucleolus Root meristem Lupinus angustifolius L. Cell Biology Plant Sciences Zoology
Content Type	Text
Resource Type	Article
Subject	Cell Biology Plant Science Medicine

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