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ISSN 2522-9028 (Print)
ISSN 2522-9036 (Online)
DOI: https://doi.org/10.15407/fz

Fiziologichnyi Zhurnal

is a scientific journal issued by the

Bogomoletz Institute of Physiology
National Academy of Sciences of Ukraine

Editor-in-chief: V.F. Sagach

The journal was founded in 1955 as
1955 – 1977 "Fiziolohichnyi zhurnal" (ISSN 0015 – 3311)
1978 – 1993 "Fiziologicheskii zhurnal" (ISSN 0201 – 8489)
1994 – 2016 "Fiziolohichnyi zhurnal" (ISSN 0201 – 8489)
2017 – "Fiziolohichnyi zhurnal" (ISSN 2522-9028)

Fiziol. Zh. 2014; 60(4): 97-104

The effect of altered oxygen partial pressure on the resisitance to hypoxia and expression of oxygen-sensitive genes in Drosophila melanogaster

Berezovs'kyĭ VIa, Chaka OH, Litovka IH, Levashov MI, Ianko RV

    O.O. Bogomoletz Institute of Physiology, National Academyof Sciences of Ukraine, Kyiv, Ukraine
DOI: https://doi.org/10.15407/fz60.04.097


Abstract

As a result of resistance test to hypoxia of Drosophilas melanogaster of Оregon strain, we identified a high resistance (Group II) and low resistance (Group III) subpopulations of flies. Flies from groups II and III were incubated in a constant normobaric hypoxiа (Ро2=62-64 mm Hg) for 10 generations. A highly resistant group (Group IV) were exposed to a shortterm anoxia (Ро2=1,5 mm Hg, 5 min) every generation. Larvae from Groups II, III, and IV demonstrated significantly elevated levels of Sir and CG14740 expression. Larvae from Group II had a significantly higher expression of CG14740 compared to group III. The restitution time after exposure to anoxia was significantly reduced in Group II (on 31% of the control values) Our results suggest that long-term adaptation to low oxygen partial pressure of highly resistant Drosophila significantly reduces the time of restitution and increases the expression of Sir2 and CG14740 genes. Key words: hypoxia, drosophila, expression of genes Sir2, CG14740, PyK.

Keywords: hypoxia, drosophila, expression of genes Sir2,CG14740, PyK.

Full text: (PDF, in Ukrainian)

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