Occurrence of plant-uncoupling mitochondrial protein (PUMP) in diverse organs and tissues of several plants
Jazyk angličtina Země Spojené státy americké Médium print
Typ dokumentu časopisecké články, práce podpořená grantem
PubMed
15254369
DOI
10.1023/a:1005648226431
PII: 291201
Knihovny.cz E-zdroje
- MeSH
- adenosintrifosfát metabolismus farmakologie MeSH
- druhová specificita MeSH
- iontové kanály metabolismus MeSH
- kyselina linolová farmakologie MeSH
- membránový potenciál mitochondrií účinky léků MeSH
- mitochondriální proteiny metabolismus MeSH
- mitochondrie metabolismus MeSH
- rostlinné proteiny metabolismus MeSH
- rostliny účinky léků metabolismus MeSH
- rozpřahující látky farmakologie MeSH
- spotřeba kyslíku MeSH
- tkáňová distribuce MeSH
- uncoupling protein 1 MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Názvy látek
- adenosintrifosfát MeSH
- iontové kanály MeSH
- kyselina linolová MeSH
- mitochondriální proteiny MeSH
- rostlinné proteiny MeSH
- rozpřahující látky MeSH
- uncoupling protein 1 MeSH
The presence of plant-uncoupling mitochondrial protein (PUMP), previously described by Vercesi et al. (1995), was screened in mitochondria of various organs or tissues of several plant species. This was done functionally, by monitoring purine nucleotide-sensitive linoleic acid-induced uncoupling, or by Western blots. The following findings were established: (1) PUMP was found in most of the higher plants tested; (2) since ATP inhibition of linoleic acid-induced membrane potential decrease varied, PUMP content might differ in different plant tissues, as observed with mitochondria from maize roots, maize seeds, spinach leaves, wheat shoots, carrot roots, cauliflower, broccoli, maize shoots, turnip root, and potato calli. Western blots also indicated PUMP presence in oat shoots, carnation petals, onion bulbs, red beet root, green cabbage, and Sedum leaves. (3) PUMP was not detected in mushrooms. We conclude that PUMP is likely present in the mitochondria of organs and tissues of all higher plants.
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