Absence of monoacylglycerol pathway for triacylglycerol synthesis in goat mammary gland.

Both subcellular fractions of lactating goat mammary gland and dispersed lactating goat mammary-gland cells were able to incorporate [U-3H]2-O-hexadecylglycerol into monoalkyl-monoacylglycerol. However, the incorporation of [U-3H]2-O-hexadecylglycerol into monoalkyl-monoacylglycerol by dispersed cells was not accompanied by incorporation of fatty acid synthesized de novo or added radiolabelled fatty acid. The result therefore shows that an active monoacylglycerol pathway does not exist in goat mammary gland.