Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
The changes in the pathways of mitochondrial oxidation at the initial period of tuber development
Autore:
Shugaev, AG; Sokolova, SV;
Indirizzi:
Russian Acad Sci, KA Timiryazev Plant Physiol Inst, Moscow 127276, Russia Russian Acad Sci Moscow Russia 127276 hysiol Inst, Moscow 127276, Russia
Titolo Testata:
RUSSIAN JOURNAL OF PLANT PHYSIOLOGY
fascicolo: 1, volume: 48, anno: 2001,
pagine: 45 - 50
SICI:
1021-4437(200101/02)48:1<45:TCITPO>2.0.ZU;2-Y
Fonte:
ISI
Lingua:
ENG
Soggetto:
CYANIDE-RESISTANT RESPIRATION; ALTERNATIVE OXIDASE; ELECTRON-TRANSPORT; PLANT-MITOCHONDRIA; MOLECULAR-BIOLOGY; POTATO SLICES; CYTOCHROME;
Keywords:
Solanum tuberosum; nondifferentiated stolons; newly developed tubers; respiration; mitochondrial oxidases; inhibitors;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
24
Recensione:
Indirizzi per estratti:
Indirizzo: Shugaev, AG Russian Acad Sci, KA Timiryazev Plant Physiol Inst, Botanicheskaya Ul 35, Moscow 127276, Russia Russian Acad Sci Botanicheskaya Ul 35 Moscow Russia 127276 ia
Citazione:
A.G. Shugaev e S.V. Sokolova, "The changes in the pathways of mitochondrial oxidation at the initial period of tuber development", RUSS J PL P, 48(1), 2001, pp. 45-50

Abstract

The rate of oxygen consumption and the participation of the mitochondrial oxidases cytochrome oxidase (COX) and the alternative KCN-resistant mitochondrial oxidase (AOX) were determined in nondifferentiated stolons and smallnewly developed tubers. High rates of about 300 mul O-2/(g fr wt h) and low sensitivity to cyanide were characteristic of stolen respiration. The AOXactivity comprised the major part of the latter (60%). As tubers developed, their respiration rate declined and the proportion of mitochondrial oxidases changed: COX became the major terminal oxidase, while the AOX input dropped to 15% of the total oxygen consumption. The AOX input correlated with the total monosaccharide content in stolons and tubers. These data are in line with the concept that the alternative pathway of mitochondrial oxidation serves as a mechanism of energy overflow by which to utilize excess carbohydrates that the cell can neither store nor utilize.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/03/20 alle ore 10:53:53