Identification of a 40 kDa Protein Kinase Activated by Stress in a Halotolerant Green Alga Dunaliella tertiolecta.
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چکیده
منابع مشابه
Halotolerant Alga Dunaliella safina'
Na+/H+ exchange activity in whole cells of the halotolerant alga DunaIfeila saUna can be elicited by intracellular acidification due to addition of weak acids at appropriate external pH. The changes in both intracellular pH and Nat were followed. Following a mild intracellular acidification, intracellular Nat content increased dramatically and then decreased. We interpret the phase of Nat influ...
متن کاملFatty Acid Acylated Proteins of the Halotolerant Alga Dunaliella salina.
The unicellular, wall-less alga Dunaliella salina has been shown to contain an array of proteins modified by the covalent attachment of fatty acids. Myristic acid (14:0) comprised approximately 80% by weight of the protein-linked acyl groups in samples derived from cells cultured in medium containing 1.7 molar NaCl and 93% in samples from cells grown in medium containing 3.0 molar NaCl. Palmiti...
متن کاملIdentification of Low Molecular Mass GTP-Binding Proteins in Membranes of the Halotolerant Alga Dunaliella salina.
A family of specific guanine nucleotide-binding proteins in Dunaliella salina was studied. Polypeptides of different subcellular fractions were separated by electrophoresis and transferred to nitrocellulose or Immobilon membranes. Incubation of the transfer blots with [(35)S]GTPgammaS or [alpha-(32)P]GTP showed no evidence for GTP-binding proteins in the chloroplast and cytosol fractions. Howev...
متن کاملIron uptake by the halotolerant alga Dunaliella is mediated by a plasma membrane transferrin.
A 150-kDa transferrin-like protein (Ttf) is associated with the plasma membrane of the halotolerant unicellular alga Dunaliella salina (Fisher, M., Gokhman, I., Pick, U., and Zamir, A. (1997) J. Biol. Chem. 272, 1565-1570). The Ttf level rises with medium salinity or upon iron depletion. Evidence that Ttf is involved in iron uptake by Dunaliella is presented here. Algal iron uptake exhibits cha...
متن کاملNaCl-induced phosphorylation of light harvesting chlorophyll a/b proteins in thylakoid membranes from the halotolerant green alga, Dunaliella salina.
Light could induce phosphorylation of light harvesting chlorophyll a/b binding proteins (LHCII) in Dunaliella salina and spinach thylakoid membranes. We found that neither phosphorylation was affected by glycerol, whereas treatment with NaCl significantly enhanced light-induced LHCII phosphorylation in D. salina thylakoid membranes and inhibited that in spinach. Furthermore, even in the absence...
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ژورنال
عنوان ژورنال: Microbes and Environments
سال: 2002
ISSN: 1342-6311,1347-4405
DOI: 10.1264/jsme2.2002.39