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Showing 1 to 12 of 59 entries
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Membrane changes in yeast cells caused by sulfhydryl reagents and accompanied by a selective release of sugar.

The Journal of membrane biology

Spoerl E.
PMID: 24174061
J Membr Biol. 1969 Dec;1(1):468-78. doi: 10.1007/BF01869793.

Iodoacetic acid or N-ethylmaleimide included in cell suspensions during measurements of sorbose exit from yeast cells caused sorbose efflux to occur at a uniform rate in contrast to the usual two-phase exit. Cells pretreated with these agents were still...

A Specific Ascorbate Free Radical Reductase Isozyme Participates in the Regeneration of Ascorbate for Scavenging Toxic Oxygen Species in Potato Tuber Mitochondria.

Plant physiology

De Leonardis S, De Lorenzo G, Borraccino G, Dipierro S.
PMID: 12228637
Plant Physiol. 1995 Nov;109(3):847-851. doi: 10.1104/pp.109.3.847.

Ascorbate free radical (AFR) reductase from isolated potato tuber (Solanum tuberosum L.) mitochondria was studied. The enzyme was purified to homogeneity and its physico-chemical and kinetic properties were compared to those of the cytosolic enzyme. The molecular mass of...

Characterization of sucrose uptake system in cassava (Manihot esculenta Crantz).

Plant science : an international journal of experimental plant biology

Eksittikul T, Chulavatnatol M, Limpaseni T.
PMID: 11448748
Plant Sci. 2001 Mar;160(4):733-737. doi: 10.1016/s0168-9452(00)00455-6.

A leaf disc system was developed to study sucrose uptake in cassava (Manihot esculenta Crantz). The uptake of (U-(14)C) sucrose by cassava leaf discs followed Michaelis-Menten kinetics with a K(m) value for sucrose of 1.3 mM. It was found...

Purification and Characterization of Sucrose Synthetase from the Shoot of Bamboo Leleba oldhami.

Plant physiology

Su JC.
PMID: 16660030
Plant Physiol. 1977 Jul;60(1):17-21. doi: 10.1104/pp.60.1.17.

A 108-fold purification of the sucrose synthetase from the extract of the shoot of bamboo Lelaba oldhami was achieved by ammonium sulfate fractionation, calcium phosphate gel adsorption, and chromatographic separations on Sephadex G-100 and diethylaminoethyl-cellulose columns. Some properties of...

Effect of sulfhydryl reagents on k efflux from rose cells: relationship to ultraviolet-stimulated efflux.

Plant physiology

Murphy TM.
PMID: 16663558
Plant Physiol. 1984 May;75(1):138-41. doi: 10.1104/pp.75.1.138.

N-Ethylmaleimide causes a rapid efflux of K(+) from suspension-cultured cells of Rosa damascena. This efflux shows many characteristics of the ultraviolet-induced efflux of K(+), including the appearance of HCO(3) (-) together with the K(+) and inhibition by respiratory inhibitors....

Purification and properties of two proteolytic enzymes with carboxypeptidase activity in germinated wheat.

Plant physiology

Preston KR, Kruger JE.
PMID: 16659708
Plant Physiol. 1976 Oct;58(4):516-20. doi: 10.1104/pp.58.4.516.

Two proteolytic enzymes with carboxypeptidase activity have been isolated from a germinated wheat extract and partially characterized. Both enzymes rapidly released amino acids from hemoglobin and gluten and hydrolyzed carbobenzoxy-phenylalanylalanine. The enzymes were inhibited by diisopropylphosphofluoridate, but unaffected by...

An acetaldehyde dehydrogenase from germinating seeds.

Plant physiology

Oppenheim A, Castelfranco PA.
PMID: 16656475
Plant Physiol. 1967 Jan;42(1):125-32. doi: 10.1104/pp.42.1.125.

An acetaldehyde dehydrogenase from germinating peanut cotyledons has been purified and its properties have been studied. At the highest purification achieved the preparation is free of alcohol dehydrogenase activity.The enzyme is specific toward diphosphopyridine nucleotide, and can oxidize a...

Effect of Sulfhydryl Reagents on the Biophysical Properties of the Plasmalemma of Chara corallina.

Plant physiology

Lichtner FT, Lucas WJ, Spanswick RM.
PMID: 16662022
Plant Physiol. 1981 Oct;68(4):899-904. doi: 10.1104/pp.68.4.899.

The administration of the sulfhydryl reagent N-ethyl-maleimide (NEM) to internodal cells of Chara corallina caused alterations in the biophysical properties of the plasmalemma, as measured with electrophysiological and radioactive tracer techniques. The membrane potential depolarized to, or near, the...

Neutral peptidases in the stroma of pea chloroplasts.

Plant physiology

Liu XQ, Jagendorf AT.
PMID: 16664864
Plant Physiol. 1986 Jun;81(2):603-8. doi: 10.1104/pp.81.2.603.

One endopeptidase (EP1) and at least three aminopeptidases (AP1, AP2, and AP3) were discovered in the stroma of chloroplasts isolated from pea seedlings (Pisum sativum L.), and purified over 100-fold. EP1 requires added Mg(2+) or Ca(2+) for activity, may...

Choline acetyltransferase from a temperature-sensitive mutant of caenorhabditis elegans.

Neurochemistry international

Sassa T, Hosono R, Kuno S.
PMID: 20501178
Neurochem Int. 1987;11(3):323-9. doi: 10.1016/0197-0186(87)90053-2.

A temperature dependent paralytic mutant of C. elegans was isolated and mapped to be an allele of the cha-1 gene that has been shown to be the structural gene for acetyl-CoA: choline-O-acetyltransferase (EC 2.3.1.6; ChAT) (Hosono et al., J....

Inhibition of glycolipid biosynthesis in chloroplasts by ozone and sulfhydryl reagents.

Plant physiology

Mudd JB, McManus TT, Ongun A, McCullogh TE.
PMID: 16657793
Plant Physiol. 1971 Sep;48(3):335-9. doi: 10.1104/pp.48.3.335.

The metabolism of uridine 5'-pyrophosphate-galactose by spinach (Spinacia oleracea) chloroplast preparations was inhibited by ozone. The formation of digalactosyl diglyceride and trigalactosyl diglyceride was inhibited much more than the formation of monogalactosyl diglyceride, steryl glycoside, and acylated steryl glycoside....

Identification and Characterization of High-Affinity Binding Sites for Inositol Trisphosphate in Red Beet.

The Plant cell

Brosnan JM, Sanders D.
PMID: 12271091
Plant Cell. 1993 Aug;5(8):931-940. doi: 10.1105/tpc.5.8.931.

Inositol 1,4,5-trisphosphate (InsP3) is thought to play a primary role in intracellular Ca2+ mobilization during signal transduction in plant cells. Although InsP3-elicited Ca2+ release across the vacuolar membrane has been demonstrated in a variety of species, little is known...

Showing 1 to 12 of 59 entries