Temat: respiratory chain - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Cd2+-promoted mitochondrial permeability transition: a comparison with other heavy metals.
Autorzy:: Belyaeva, Elena
Glazunov, Vadim
Korotkov, Sergey
Powiązania:: https://bibliotekanauki.pl/articles/1043302.pdf
Data publikacji:: 2004
Wydawca:: Polskie Towarzystwo Biochemiczne
Tematy:: copper
mercury
mitochondrial permeability transition
respiratory chain
cadmium
Opis:: We compared action of Cd2+, Hg2+, and Cu2+ on isolated rat liver mitochondria in the absence of added Ca2+ and Pi. The heavy-metal ions produced dose-dependently: (1) enhanced membrane permeabilizaton manifested in mitochondrial swelling and activation of basal respiration, (2) inhibition of uncoupler-stimulated respiration, and (3) membrane potential dissipation. Among the metals, Cu2+ exhibited maximal stimulatory effect on basal respiration and minimal inhibitory action on DNP-uncoupled respiration whilst Cd2+ promoted the strongest depression of uncoupled respiration and the largest swelling in NH4NO3 medium. Dithiothreitol induced a basal respiration release if added after high [Cd2+] and [Hg2+], and the stimulation was CsA-insensitive.
Źródło:: Acta Biochimica Polonica; 2004, 51, 2; 545-551
0001-527X
Pojawia się w:: Acta Biochimica Polonica
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Alternative oxidase in higher plants.
Autorzy:: Juszczuk, Izabela
Rychter, Anna
Powiązania:: https://bibliotekanauki.pl/articles/1043421.pdf
Data publikacji:: 2003
Wydawca:: Polskie Towarzystwo Biochemiczne
Tematy:: mitochondrial respiratory chain
ubiquinol
post-translational/post-transcriptional regulation
respiration
reactive oxygen species
alternative oxidase
Opis:: Plant respiratory chain branches at the level of ubiquinone from where the electrons flow through the cytochrome pathway or to alternative oxidase. Transfer of electrons from ubiquinone to oxygen by alternative oxidase has a non-protonmotive character and, by bypassing two sites of H+ pumping in complexes III and IV, lowers the energy efficiency of respiration. In this paper we review theoretical and experimental studies about the structure and possible function of alternative oxidase. The evidence for specific gene expression dependent on the physiological, developmental and environmental conditions is also described. We underline the physiological role of alternative oxidase as a "survival" protein that allows plants to cope with the stressful environment.
Źródło:: Acta Biochimica Polonica; 2003, 50, 4; 1257-1271
0001-527X
Pojawia się w:: Acta Biochimica Polonica
Dostawca treści:: Biblioteka Nauki

Artykuł

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