TY - JOUR
T1 - Fate of the glycerol and acyl moieties from dietary trioleoylglycerol in the sea star, Asterias rubens
AU - Oudejans, R. C.H.M.
AU - Rutten, V. P.M.G.
PY - 1982/1/1
Y1 - 1982/1/1
N2 - 1. 1. The metabolic fate of the acyl and glycerol moieties of dietary triacylglycerols was studied in the female sea star Asterias rubens, 1, 6 and 24 hr after oral administration of radiolabelled precursors. 2. 2. In the lipids of the pyloric caeca, ovaries and coelomocytes only low percentages of recovery (<10% of the dose) were found, indicating that much of the precursor remains elsewhere in the digestion system or that the acyl moieties have been used for energy production. 3. 3. Changes occurring in the 3H/14C ratio of all lipid fractions suggest a "sparing effect" for fatty acids. 4. 4. Differences were found at various stages of gonadal development and also in the distribution pattern of the radiolabel over individual lipid classes from pyloric caeca, ovaries and coelomocytes. 5. 5. High radioactivities found in coelomocyte lipids may point to a rapid turnover of structural lipid or some role of coelomocytes in lipid transport.
AB - 1. 1. The metabolic fate of the acyl and glycerol moieties of dietary triacylglycerols was studied in the female sea star Asterias rubens, 1, 6 and 24 hr after oral administration of radiolabelled precursors. 2. 2. In the lipids of the pyloric caeca, ovaries and coelomocytes only low percentages of recovery (<10% of the dose) were found, indicating that much of the precursor remains elsewhere in the digestion system or that the acyl moieties have been used for energy production. 3. 3. Changes occurring in the 3H/14C ratio of all lipid fractions suggest a "sparing effect" for fatty acids. 4. 4. Differences were found at various stages of gonadal development and also in the distribution pattern of the radiolabel over individual lipid classes from pyloric caeca, ovaries and coelomocytes. 5. 5. High radioactivities found in coelomocyte lipids may point to a rapid turnover of structural lipid or some role of coelomocytes in lipid transport.
UR - http://www.scopus.com/inward/record.url?scp=49049141283&partnerID=8YFLogxK
U2 - 10.1016/0305-0491(82)90097-9
DO - 10.1016/0305-0491(82)90097-9
M3 - Article
AN - SCOPUS:49049141283
SN - 0305-0491
VL - 73
SP - 685
EP - 692
JO - Comparative Biochemistry and Physiology -- Part B: Biochemistry and
JF - Comparative Biochemistry and Physiology -- Part B: Biochemistry and
IS - 3
ER -