PMID: 3772830Sep 1, 1986Paper

Chemosensory stimuli in feeding behavior of the leech Hirudo medicinalis

Journal of Comparative Physiology. A, Sensory, Neural, and Behavioral Physiology
E J Elliott

Abstract

The involvement of chemotherapy stimuli in the feeding behavior of the blood-sucking leech Hirudo medicinalis was investigated using a behavioral feeding test in which test solutions were encased in a highly permeable membrane and presented to the leech. Whole human blood or plasma at ambient temperature elicited the complete sequence of feeding behavior: probing, attachment, biting and ingestion. Spring water, 300 mM sucrose, or dialyzed plasma did not elicit any of these responses. Spring water warmed to 38 degrees C elicited probing and transient attachment but not ingestion. Thus, appropriate chemical stimuli were necessary for complete feeding behavior. A chemically defined artificial blood mix, containing the major components of low molecular weight found in blood, elicited all aspects of leech feeding behavior. Eliminating either NaCl or arginine from the mix resulted in complete loss of effectiveness. Moreover, a solution containing only NaCl (150 mM) and arginine (90 microM) was also an effective feeding stimulus. Thus, appropriate chemical stimuli are sufficient for complete feeding behavior. Neither NaCl nor arginine alone induced feeding although NaCl alone elicited probing. Sensory detection of blood was localized ...Continue Reading

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Citations

Aug 13, 1999·Journal of Neurophysiology·K Ogawa, J Caprio
Nov 10, 2011·Die Naturwissenschaften·Jan-Peter Hildebrandt, Sarah Lemke
Jul 1, 1995·Journal of Neurobiology·S E Blackshaw, J G Nicholls
Mar 21, 2006·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Peter D BrodfuehrerMaureen Convery
Jun 7, 2014·The Journal of Experimental Biology·Chris R PalmerWilliam B Kristan
Dec 22, 1999·Physiology & Behavior·L Kornreich, A L Kleinhaus
Nov 1, 1988·Behavioral and Neural Biology·T Karrer, C L Sahley
Nov 2, 2005·Progress in Neurobiology·William B KristanW Otto Friesen
Mar 17, 2010·Current Biology : CB·Daniel A WagenaarKathleen A French

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