Effect of osmotic stress on carbon metabolism in Chlamydomonas reinhardtii: accumulation of glycerol as an osmoregulatory solute

NaCl, KCl, and sucrose at equiosmolar concentrations had similar inhibitory effects on photosynthetic carbon metabolism by the freshwater green alga, Chlamydomonas reinhardtii. Inhibitory concentrations of these solutes altered the products of photosynthetic 14CO2 incorporation, resulting in reduced...

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Veröffentlicht in:	Plant physiology (Bethesda) 1986-10, Vol.82 (2), p.594-596
Hauptverfasser:	Husic, H.D, Tolbert, N.E
Format:	Artikel
Sprache:	eng
Schlagworte:	ACIDE ORGANIQUE ACIDOS ORGANICOS ALGAE ALGUE ALMIDON AMIDON Biological and medical sciences CARBOHIDRATOS CARBOHYDRATES CARBON CARBONE CARBONO CICLO BIOGEOQUIMICO Communications CYCLE BIOGEOCHIMIQUE CYCLING Dunaliella Excretion FOSFATOS FOTOSINTESIS Fundamental and applied biological sciences. Psychology GLICEROL GLUCIDE GLYCEROL GLYCOLATES LACTATE LACTATES LACTATOS METABOLISM METABOLISME METABOLISMO ORGANIC ACIDS Phosphatases PHOSPHATE PHOSPHATES PHOTOSYNTHESE PHOTOSYNTHESIS Plant physiology and development Plants REGIME HYDRIQUE DU SOL REGIMEN HIDRICO DEL SUELO SALINIDAD SALINITE SALINITY Salts SOIL WATER REGIMES Solutes STARCH Sugar phosphates TRANSLOCACION TRANSLOCATION Water and solutes. Absorption, translocation and permeability
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Zusammenfassung:	NaCl, KCl, and sucrose at equiosmolar concentrations had similar inhibitory effects on photosynthetic carbon metabolism by the freshwater green alga, Chlamydomonas reinhardtii. Inhibitory concentrations of these solutes altered the products of photosynthetic 14CO2 incorporation, resulting in reduced incorporation into starch, sugar phosphates, lactate, and glycolate, but caused an accumulation of glycerol both intracellularly and in the medium.
ISSN:	0032-0889 1532-2548
DOI:	10.1104/pp.82.2.594