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Titolo:
Atomic force microscopy of the cell nucleus
Autore:
Jimenez-Garcia, LF; Fragoso-Soriano, R;
Indirizzi:
Univ Nacl Autonoma Mexico, Fac Ciencias, Dept Biol, Lab Microscopia Elect,Mexico City 04510, DF, Mexico Univ Nacl Autonoma Mexico Mexico City DF Mexico 04510 y 04510, DF, Mexico Univ Nacl Autonoma Mexico, Fac Ciencias, Dept Biol, Lab Microscopia Confocal, Mexico City 04510, DF, Mexico Univ Nacl Autonoma Mexico Mexico City DFMexico 04510 y 04510, DF, Mexico IPN, CINVESTAV, Dept Fis, Mexico City 07738, DF, Mexico IPN Mexico City DF Mexico 07738 , Dept Fis, Mexico City 07738, DF, Mexico
Titolo Testata:
JOURNAL OF STRUCTURAL BIOLOGY
fascicolo: 2-3, volume: 129, anno: 2000,
pagine: 218 - 222
SICI:
1047-8477(200004)129:2-3<218:AFMOTC>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
LACANDONIA-SCHISMATICA; ORGANIZATION; TRIURIDALES; PLANTS;
Keywords:
atomic force microscopy; cell nucleus; chromatin; nucleolus; plant cell;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
19
Recensione:
Indirizzi per estratti:
Indirizzo: Jimenez-Garcia, LF Univ Nacl Autonoma Mexico, Fac Ciencias, Dept Biol, LabMicroscopia Elect,Circuito Exterior,Ciudad Univ, Mexico City 04510, DF, Mexico Univ Nacl Autonoma Mexico Circuito Exterior,Ciudad Univ Mexico City DFMexico 04510
Citazione:
L.F. Jimenez-Garcia e R. Fragoso-Soriano, "Atomic force microscopy of the cell nucleus", J STRUCT B, 129(2-3), 2000, pp. 218-222

Abstract

In mammals and plants, the cell nucleus is organized in dynamic macromolecular domains involved in DNA and RNA metabolism. These domains can be visualized by light and electron microscopy and their composition analyzed by using several cytochemical approaches. They are composed of chromatin or ribonucleoprotein structures as interchromatin and perichromatin fibers and granules, coiled bodies, and nuclear bodies. In plants, DNA arrangement defines chromocentric and reticulated nuclei. We used atomic force microscopy to study the in situ structure of the plant cell nucleus. Samples of the plants Lacandonia schismatica and Ginkgo biloba were prepared as for electron microscopy and unstained semithin sections were mounted on glass slides. For comparison, we also examined entire normal rat kidney cells using the same approach, Samples were scanned with an atomic force microscope working in contact mode. Recognizable images of the nuclear envelope, pores, chromatin,and nucleolus were observed. Reticulated chromatin was observed in L. schismatica. Different textures in the nucleolus of G. biloba were also observed, suggesting the presence of nucleolar subcompartments. The observation ofnuclear structure in situ with the atomic force microscope offers a new approach for the analysis of this organelle at high resolution. (C) 2000 Academic Press.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/11/20 alle ore 16:13:53