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Titolo:
A qualitative model for the mechanism of sugar accumulation in cold-stressed plant tissues
Autore:
Gounaris, Y;
Indirizzi:
Univ Thessaly, Dept Agr, New Ionia 38446, Magnesia, Greece Univ Thessaly New Ionia Magnesia Greece 38446 nia 38446, Magnesia, Greece
Titolo Testata:
THEORY IN BIOSCIENCES
fascicolo: 2, volume: 120, anno: 2001,
pagine: 149 - 165
SICI:
1431-7613(200109)120:2<149:AQMFTM>2.0.ZU;2-E
Fonte:
ISI
Lingua:
ENG
Soggetto:
SUCROSE-PHOSPHATE SYNTHASE; STORED POTATO-TUBERS; UDP-GLUCOSE PYROPHOSPHORYLASE; PEROXIDE-SCAVENGING SYSTEMS; SUSPENSION-CULTURED CELLS; RIBULOSE-1,5-BISPHOSPHATE CARBOXYLASE OXYGENASE; LYCOPERSICON-ESCULENTUM MILL; DIFFERENT CHILLING TOLERANCE; STARCH BIOSYNTHETIC GENES; MUNG BEAN HYPOCOTYLS;
Keywords:
chilling; low temperature; mitochondria; plastid; potato;
Tipo documento:
Review
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
132
Recensione:
Indirizzi per estratti:
Indirizzo: Gounaris, Y Univ Thessaly, Dept Agr, Fytokou St, New Ionia 38446, Magnesia, Greece Univ Thessaly Fytokou St New Ionia Magnesia Greece 38446 reece
Citazione:
Y. Gounaris, "A qualitative model for the mechanism of sugar accumulation in cold-stressed plant tissues", THEOR BIOSC, 120(2), 2001, pp. 149-165

Abstract

Summ. Low temperatures induce the accumulation of soluble sugars in plant cells. An attempt is made to identify the primary site of action of low temperatures and the sequence of physiological and biochemical events leading to sugar accumulation. The integration of all the available information points to a central role of increased intracellular calcium ion concentration generated by the inhibition of ATPases concerned with its homeostasis. A positive role of a cold-induced dysfunction of mitochondrial and chloroplast electron flow is also proposed. The biological significance of an explanation of this physiological response to a stress factor relies on its categorization into the major family of those employing alternative energy-producing pathways under stress conditions. More specifically, a connection of sugar mobilization to the needs of the cold-stressed cell to employ fermentative energy-producing mechanisms is made. From this ankle of view, new ways ofgenetically modifying the ability of plant cells to accumulate sugars become obvious.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 15/07/20 alle ore 08:18:58