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Proceedings Paper

Effect of He-Ne laser radiation on polytene chromosomes of Chironomus
Author(s): Gregory E. Brill; Oksana R. Apina; Svetlana I. Belyanina; Nadezda P. Panina
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Paper Abstract

In this work the influence of He-Ne laser irradiation (wavelength 632.8 nm, power density 1 mW/cm2, 15 and 30 min) on giant polytene chromosomes from salivary gland cells of larvae Chironomus plumosus and Chironomus balatonicus was studied. Increase of chromosome compactness depending on the dose, as well as formation of puffs de novo in different loci of different chromosomes, were revealed. The activity of the nucleolar organizer increased only in the case of initially low activity of this zone. Indices of genetic activity of Balbiani ring-7 in chromosome 4 and Balbiani ring-16 in chromosome 1 did not change.

Paper Details

Date Published: 15 February 1994
PDF: 6 pages
Proc. SPIE 2086, Medical Applications of Lasers, (15 February 1994); doi: 10.1117/12.169140
Show Author Affiliations
Gregory E. Brill, Saratov Medical Institute (Russia)
Oksana R. Apina, Saratov Medical Institute (Russia)
Svetlana I. Belyanina, Saratov Medical Institute (Russia)
Nadezda P. Panina, Saratov Medical Institute (Russia)


Published in SPIE Proceedings Vol. 2086:
Medical Applications of Lasers
Kazuhiko Atsumi; Cornelius Borst; Frank W. Cross; Herbert J. Geschwind; Dieter Jocham; Jan Kvasnicka; Hans H. Scherer; Mario A. Trelles; Eberhard Unsoeld, Editor(s)

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