Larvae of @entity4079 are facultative specialists on plants in the family Solanaceae. Larvae reared on solanaceous foliage develop a strong preference for their host; otherwise, they remain polyphagous. The host-specific recognition cue in @entity415 foliage for Manduca larvae is the @entity30433 , @entity68928 . Two pairs of @entity1702 , the lateral and medial sensilla styloconica, are both necessary and sufficient for the feeding preferences of host-restricted larvae. We conducted electrophysiological tip recordings from sensilla of solanaceous or @entity3505 germ diet-reared larvae. For each animal, recordings of the responses to @entity68928 , @entity413 , @entity68929 and @entity4338 were compared. All responses included both phasic and tonic portions. The sensilla styloconica of solanaceous-reared larvae were tuned to @entity68928 , defined as maintaining a high sensitivity to @entity68928 , while showing lower sensitivity to other plant compounds. Half of the sensillar neurons of solanaceous-reared larvae were 'tuned' to @entity68928 , whereas those of @entity3505 germ diet-reared larvae were not. The different responses between the two types of animals were a result of changes of individual receptor cells' responses in the sensilla. Feeding on solanaceous foliage therefore appears to result in a modification of the physiological responses of individual taste receptor cells that causes them to be tuned to the host-recognition cue @entity68928 . We propose that this tuning is the basis for the host-restricted larvae's strong behavioral preferences for solanaceous foliage.

Chemosensory tuning to a host recognition cue in the facultative specialist larvae of the moth XXXX .

@entity4079 :: ('7130', 'Species') :: ['Manduca sexta'] @entity30433 :: ('CHEBI:61655', 'Chemical') :: ['steroidal glycoside'] @entity4338 :: ('CHEBI:32588', 'Chemical') :: ['KCl'] @entity68929 :: ('MESH:D014053', 'Chemical') :: ['tomatine'] @entity68928 :: ('MESH:C428264', 'Chemical') :: ['indioside D'] @entity1702 :: ('MESH:D013651', 'Disease') :: ['galeal taste sensilla'] @entity415 :: ('4113', 'Species') :: ['potato'] @entity3505 :: ('4565', 'Species') :: ['wheat'] @entity413 :: ('MESH:D005947', 'Chemical') :: ['glucose']
@entity4079 :: (7130,Species) :: ['Manduca sexta']
