Larvae transport [.sup.14]C-glycine from seawater into the intracellular free amino acid pool
. The endogenous pool of non-radiolabeled glycine remains nearly constant during the relatively short period of the transport assay (~50 min); however, the ratio of [.sup.14]C-radiolabeled to non-radiolabeled glycine changes (i.e., the specific activity of glycine in the free amino acid pool
changes continuously during the transport assay).
bistortoides, as evidenced by large seasonal variations in the rhizome amino acid pool
The amount of glycine in the free amino acid pool
increased significantly during development (ANOVA: [F.sub.[1,46]] = 45.43, P [less than] 0.0005; [ILLUSTRATION FOR FIGURE 1B OMITTED]).
AC Caribou harvested at 600 GDD showed an increase in total N and total amino acid pools
from the time of the third harvest (7 Oct.
Unlike systems [y.sup.+]L, [b.sup.0,+] and [B.sup.0,+], system [y.sup.+] is ubiquitously expressed and functions to accumulate lysine and arginine intracellular amino acid pools
for nitrogen metabolism (Verrey et al., 2000).
During June, when extractable amino acid pools
were maximal, populations (most probable numbers, MPN) capable of growth on glycine or glutamate were also high [ILLUSTRATION FOR FIGURE 5B OMITTED].
Intracellular free amino acid pools
function in cell volume regulation (Pierce, 1982; Yancey et al., 1982; Rice and Stephens, 1988), and the primary function of taurine may be as a compatible osmolyte, a function which is conserved throughout the animal kingdom (Allen and Garrett, 1971; Huxtable, 1992).