Results 141 to 150 of about 1,542 (192)
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Benzophenone Photophores in Biochemistry

Biochemistry, 1994
The photoactivatable aryl ketone derivatives have been rediscovered as biochemical probes in the last 5 years. The expanding use of benzophenone (BP) photoprobes can be attributed to three distinct chemical and biochemical advantages. First, BPs are chemically more stable than diazo esters, aryl azides, and diazirines. Second, BPs can be manipulated in
G, Dormán, G D, Prestwich
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Nervous control of photophores in luminescent fishes

Acta Histochemica, 2011
Functional studies of the autonomic innervation in the photophores of luminescent fishes are scarce. The majority of studies have involved either the stimulation of isolated photophores or the modulatory effects of adrenaline-induced light emission.
ZACCONE, Giacomo   +5 more
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Simple and Versatile Method for Tagging Phenyldiazirine Photophores

Journal of the American Chemical Society, 2006
The first effective method for the introduction of a versatile substituent on 3-phenyl-3-trifluoromethyldiazirine has been developed. The simple preparation of a useful aldehyde intermediate allows easy access to various elaborated photoaffinity ligands, including a l-phenylalanine analog bearing a diazirine ring (TmdPhe).
Hiroyuki, Nakashima   +4 more
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Luminescence of Chauliodus photophores by electrical stimulation

Comparative Biochemistry and Physiology Part A: Physiology, 1979
Abstract 1. 1. Photophores isolated from living specimens of the bathypelagic fish Chauliodus sloanei emit bright flashes or luminus when they are electrically stimulated. 2. 2. Anodic stimuli of long duration (4–8 msec) and high strength (50 V) evoke quick flashes (10–130 10 6 quanta/sec) that fuse in a erratic way when the frequency of ...
B Christophe, F Baguet, G Marechal
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The luminescence and photophores of euphausiid crustaceans

Journal of Zoology, 1978
Euphausiid shrimps bear light organs, two pairs in the thorax, and four similar single organs in the abdomen: A pair on the eyestalks differ in structure from these others, and are not considered further by us. In most species the size of the organs is related to that of the animal, but they are relatively smaller in deeper living species.
P. J. Herring, N. A. Locket
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Fluorescence and Luminescence of Isolated Photophores of Porichthys

Journal of Experimental Biology, 1979
ABSTRACT Isolated photophores of Porichthys exposed to u.v. light (365 nm) exhibit a green fluorescence localized in the photocytes and a bluish fluorescence originating from the lens-like body. The luminescence of photophores evoked by epinephrine, nor-epinephrine or potassium cyanide decreases with the intensity of the green ...
F, Baguet, A M, Zietz-Nicolas
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Oxygen consumption and luminescence of Maurolicus photophores stimulated by adrenalin

Comparative Biochemistry and Physiology Part C: Comparative Pharmacology, 1987
1. Abdominal photophores isolated from Maurolicus muelleri freshly collected in the Strait of Messina show a stable oxygen consumption rate of 149.8 +/- 10.1 nmoles g-1 min-1 (N = 31). 2. In the presence of adrenalin (5 X 10(-4) mol/l), the photophores that did not luminesce showed a 78% decrease of the resting oxygen uptake.
J, Mallefet, F, Baguet
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Adrenergic stimulation of isolated photophores of Maurolicus muelleri

Comparative Biochemistry and Physiology Part C: Comparative Pharmacology, 1983
1. Abdominal and caudal photophores isolated from freshly captured specimens of Maurolicus muelleri, in the Strait of Messina, respond to adrenaline and noradrenaline by a light emission which is proportional to the fresh weight of the photophores. 2.
F. Bagliet, B. Christophe
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