Study of the chemoreception in mollusca
Kamardin, N.N.; Salanki, J.; Rozsa, K.S.; Nozdrachev, A.D.
Rossiiskii Fiziologicheskii Zhurnal Imeni I.M. Sechenova 85(12): 1533-1543
1999
ISSN/ISBN: 0869-8139 PMID: 10687189 Document Number: 505654
Recording of the mollusc osphardium nerve activity revealed the osphardium sensitivity to hyperosmotic pressure, sodium chloride, and aminoacidosis. The osphardium was found to detect quality of the water where the animals were kept. Pont snail osphradium preserves ancestors' multisensority which unites perception of different chemical and physical signals. Patch-clamp method revealed membrane currents in certain ganglia and receptor cells which are sensitive to Na+ and L-aspartate increase in the solution around the osphardium. Inward components of these currents are, probably, of the sodium and/or calcium nature, whereas the outward components--of the potassium one.