Model
Digital Document
Publisher
Florida Atlantic University
Description
Antennular chemoreceptors of P. argus were surveyed electro-physiologically
to determine their relative sensitivity to low molecular
weight components of the shrimp, Penaeus duorarum. An ultrafiltrate
(less than 1,000 molecular weight) of shrimp extract did not differ
significantly in stimulus value from the total extract itself. A
mixture of the 19 amino acids present in the ultrafiltrate was slightly
less stimulatory than the total extract. Taurine alone approximated
the stimulus value of the amino acid mixture at its component concentration.
Taurine was also the most stimulatory of the 19 amino acids when
compared at the homogeneous 10^-3 M concentration. Taurine is the major
individual stimulant of shrimp extract but a contribution is also made
from other non-amino acid low molecular weight compounds.
to determine their relative sensitivity to low molecular
weight components of the shrimp, Penaeus duorarum. An ultrafiltrate
(less than 1,000 molecular weight) of shrimp extract did not differ
significantly in stimulus value from the total extract itself. A
mixture of the 19 amino acids present in the ultrafiltrate was slightly
less stimulatory than the total extract. Taurine alone approximated
the stimulus value of the amino acid mixture at its component concentration.
Taurine was also the most stimulatory of the 19 amino acids when
compared at the homogeneous 10^-3 M concentration. Taurine is the major
individual stimulant of shrimp extract but a contribution is also made
from other non-amino acid low molecular weight compounds.
Member of