Results 251 to 260 of about 52,382 (302)
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1982
Many plant cell cultures are able to regenerate roots, shoots, embryos and complete plantlets. It is also known that the morphogenetic capabilities of plant cells can be regulated by changes to the levels of growth regulatory substances in the nutrient media on which the tissues are cultured.
Jakob Reinert, Michael Magson Yeoman
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Many plant cell cultures are able to regenerate roots, shoots, embryos and complete plantlets. It is also known that the morphogenetic capabilities of plant cells can be regulated by changes to the levels of growth regulatory substances in the nutrient media on which the tissues are cultured.
Jakob Reinert, Michael Magson Yeoman
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Blood pressure control in pithed rat
General Pharmacology: The Vascular System, 1986In the pithed Wistar rats Captopril (2 mg/kg) decreased the mean arterial pressure (MAP) 21%. Further injection of a specific antagonist decreased the vasoconstrictor action of vasopressin (aAVP, 10 micrograms/kg) an additional 6%. Reversal in the order of drug administration did not change these percentages. The osmotic stimulus evoked by the infusion
L F, Carbonell +5 more
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Phloem differentiation in tobacco pith culture
Journal of Ultrastructure Research, 1971Phloem cells differentiating in sterile pith cultures of tobacco have been fixed with formaldehyde-glutaraldehyde for electron microscopy. The phloem consists of sieve elements, companion cells and other parenchyma cells. The differentiation processes of these cells are similar to those in intact plants.
J, Cronshaw, R, Anderson
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Cardiovascular Effects of Acetaldehyde in Pithed Rats
Pharmacology, 1992The influence of acetaldehyde (30 mg/kg i.v.) on blood pressure and heart rate in anesthetized and pithed rats was studied. In anesthetized rats we observed a small increase, and a subsequent considerable decrease in mean blood pressure. The latter did not occur in pithed rats.
D, Pawlak, B, Malinowska, W, Buczko
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AJNR. American journal of neuroradiology, 2007
We describe a middle-aged woman who inserted a sewing needle into her spinal cord in an attempt at performing her own acupuncture. Reports of neurologic injury are rare in the literature, despite the widespread use of acupuncture. This is the first case we have identified involving spinal cord injury from self-performed acupuncture.
D W, Anderson, M, Datta
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We describe a middle-aged woman who inserted a sewing needle into her spinal cord in an attempt at performing her own acupuncture. Reports of neurologic injury are rare in the literature, despite the widespread use of acupuncture. This is the first case we have identified involving spinal cord injury from self-performed acupuncture.
D W, Anderson, M, Datta
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Sieve element pores in Nicotiana pith culture
Journal of Ultrastructure Research, 1970Sieve elements were induced to form in cultured pith cylinders of Nicotiana tabacum L. (var. Wisconsin 38). Both xylem and phloem differentiate in isolated nodules at the periphery of the cylinders. The mature sieve elements closely resemble sieve elements in intact plants but are more irregular in shape and usually not highly elongated.
R, Anderson, J, Cronshaw
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Tracheid differentiation in tobacco pith cultures
Planta, 1966Sterile pith cultures of Nicotiana tabacum have been induced to form localized regions of differentiating tracheids. These localized regions have been examined by phase, fluorescence, and electron microscopy, and polarization optics. Fixation for electron microscopy was with glutaraldehyde-osmium.
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Hypotensive effect of bopindolol in pithed rats
General Pharmacology: The Vascular System, 19931. Effects of bopindolol, a beta adrenoceptor antagonist with partial agonist activity, on the diastolic blood pressure and heart rate of pithed rats were compared with those of pindolol. 2. Both bopindolol and pindolol reduced the diastolic blood pressure (DBP) in pithed rats.
H, Tanaka, S, Takahashi, K, Shigenobu
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