Red drum larvae were fed, from day 11 to day 24 post-hatch, with Artemia (LP group) or two isoproteinic-formulated diets with varying lipid levels, 15% (L15 group) and 30% (L30 group). The lipid fraction was composed of a mixture of cod liver oil and soy lecithin. Larvae fed Artemia exhibited the greatest length; L30 diet induced a larvae length significantly greater than that obtained with L15...

Proteins L30 and 55 from the 50 S and 30 S subunits, respectively, of the Bacillus stearothermophilus ribosome have been crystallized. L30 crystals are tetragonal and the space group is P41212 (or P43212)vwith cell dimensions a = b = 46.3 A and c = 61.4 A. S5 crystals are trigonal with the space group P3,21 (or P3,21) *and cell dimensions a = b = 59.3 A and c = 109.8 A. In both cases, there app...

Ž . Red drum larvae were fed, from day 11 to day 24 post-hatch, with Artemia LP group or two Ž . Ž . isoproteinic-formulated diets with varying lipid levels, 15% L15 group and 30% L30 group . The lipid fraction was composed of a mixture of cod liver oil and soy lecithin. Larvae fed Artemia exhibited the greatest length; L30 diet induced a larvae length significantly greater than Ž . that obtain...

Fischer, Thomas M., Robert S. Zucker, and Thomas J. Carew. with a time course of milliseconds; augmentation , which Activity-dependent potentiation of synaptic transmission from L30 lasts for seconds to tens of seconds; and posttetanic potentiainhibitory interneurons of Aplysia depends on residual presynaptic tion (PTP), with a time course on the scale of minutes Ca but not on postsynaptic Ca. ...

The circuitry underlying the Aplysia siphon-elicited siphon-withdrawal reflex has been widely used to study the cellular substrates of simple forms of learning and memory. Nonetheless, the functional roles of the different neurons and synaptic connections modified with learning have yet to be firmly established. In this study we constructed a realistic computer simulation of the best-understood...

1 2 3 4 5 6 7 8 1 e0 e9 e11 e12 e10 e7 e15 2 e4 e2 e5 e6 L L L e13 3 e1 e3 e8 L L L L e16 4 L L L L L L e17 5 e0 e11 e12 e10 e9 L e15 6 e4 e2 e6 L19 e7 e5 L20 e13 7 e1 e3 L24 e8 L23 L22 e16 8 L25 L26 L30 L27 L28 L29 e17 9 e0 e12 e10 L31 e11 e9 e15 10 e4 e2 L19 L20 e6 e7 e13 11 e1 e3 L22 L23 L24 e8 e16 12 L L25 L26 L29 L30 L27 L28 e17 13 e0 e10 L21 e12 e9 e11 e15 14 e4 e2 e7 e6 L20 L19 e13 15 e1...

The 5 A resolution crystal structure analysis of ribosomal protein L30 from Bacillus stearothermophilus is described. The molecule is shown to be compact and extend to about 25-30 A in each dimension.

This research shows that short-term synaptic plasticity can play a critical role in shaping the behavioral response to environmental change. In Aplysia, exposure to turbulent environments produces a stable reduction in the duration of the siphon-withdrawal reflex (SWR) and the responsiveness of siphon motor neurons. Recovery takes >1 min after a brief (10 sec-5 min) exposure but <1 min after a ...