Results 241 to 250 of about 47,150 (283)
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Fungicidal activity of three putrescine analogues
Pesticide Science, 1994AbstractThe synthetic putrescine analogues (E)‐N,N,N′,N′‐tetraethyl‐l,4‐diaminobut‐2‐ene(E‐TED), the (Z)‐isomer (Z‐TED) and (E)‐N,N‐dimethyl‐1,4‐diaminobut‐2‐ene(E‐DMD) were prepared as their salts, and controlled five important crop pathogens (Erysiphe graminis DC f.sp.
Havis, ND +4 more
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An enzymatic-isotopic microassay for putrescine
Biochimica et Biophysica Acta (BBA) - General Subjects, 1973Abstract A highly sensitive enzymatic isotopic microassay procedure for the measurement of putrescine (1,4-diaminobutane) is described. The method depends on the enhancement by putrescine of the decarboxylation of S- adenosyl - L -[carboxy- 14 C ] methionine by baker's yeast (Saccharomyces cerevisiae) S- adenosyl - L ...
S I, Harik, G W, Pasternak, S H, Snyder
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Putrescine and spermidine transport in Leishmania
Molecular and Biochemical Parasitology, 2000The transport of putrescine and spermidine into Leishmnania donovani promastigotes and Leishmania mexicana promastigotes and amastigotes has been characterised. Polyamine transport was shown to be saturable and temperature-sensitive for both developmental stages of Leishmania.
M, Basselin, G H, Coombs, M P, Barrett
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Putrescine has analgesic activity, in rats
Life Sciences, 1984Putrescine, intraperitoneally injected into rats at doses of 200, 300 and 400 mg/Kg, had a dose-dependent analgesic effect (hot plate, 55.5 degrees C), which was not antagonized by naloxone. Analgesia was also obtained by intracerebroventricular injection (1,000 nmoles/rat). Chronic administration (300 mg/Kg/day i.p. for 8 consecutive days) resulted in
GENEDANI, Susanna +2 more
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Putrescine, Spermidine, and Spermine
Physiology, 1986Putrescine was first isolated from putrifying meat and was thought of as a decomposition product;spermine was named from its occurrence in semen. These polyamines, however, are now known to have important roles in cell growth and differentiation. Their physiological significance can be studied by analyzing the consequences of depletion of the cellular
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Putrescine metabolism in human brain tumors
Journal of Neuro-Oncology, 1986The metabolism of the polyamines, putrescine, spermidine and spermine, was studied in human brain and brain tumors. Samples of brain and tumors were incubated with 3H-putrescine and the amounts of labeled polyamines were measured. The amount of putrescine conversion was found to be greater in tumors that in normal brain samples.
S S, Goldman +3 more
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1984
The diamine putrescine and the polyamines spermidine and spermine are now known to be ubiquitous, and studies with micro-organisms, animals, and plants have shown the importance of these amines in metabolism and growth. Their ability to interact with the anionic phosphate residues in nucleic acids and membranes is well established.
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The diamine putrescine and the polyamines spermidine and spermine are now known to be ubiquitous, and studies with micro-organisms, animals, and plants have shown the importance of these amines in metabolism and growth. Their ability to interact with the anionic phosphate residues in nucleic acids and membranes is well established.
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