SEM-EDS probing of morphological and physiological changes produced by a porphyrin photosensitizer in Psammobatis extenta electrocytes.
Morphological and physiological changes produced by the intracellular localization of an alkyl long-chain tetraphenylporphyrin photosensitizer in Psammobatis extenta electrocytes were studied by means of SEM-EDS. Immediately after photosensitizer penetration, electrocytes swell and their convex faces lose all invaginations. This effect is due to chloride and sodium ion flux into electrocytes, in accordance with energy dispersive X-ray microanalysis.
Prado Figueroa
María
M
Instituto de Investigaciones Bioquímicas (CONICET), Universidad Nacional del Sur, C.C. 857, B-8000FWB Bahía Blanca, Argentina.
Santiago Contreras
Julio
J
D000818:Animals; D004557:Electric Organ / Q000166:cytology* / Q000187:drug effects* / Q000502:physiology; D004577:Electron Probe Microanalysis; D008855:Microscopy, Electron, Scanning; D017319:Photosensitizing Agents / Q000494:pharmacology*; D011166:Porphyrins / Q000494:pharmacology*; D012860:Skates, Fish / Q000502:physiology*
D017319:Photosensitizing Agents; D011166:Porphyrins; C409084:tetraphenylporphyrin