Kolesnikov N N, Zhimulev I F
Ontogenez. 1975;6(2):177-82.
The process of mucoprotein (glue) accumulation is described. This substance is secreted by salivary glands of the III instar larvae of Drosophila melanogaster. Granules of the secretory substance appear in the glandular cells 90 hrs after egg laying. Its secretion takes place within 120 hrs. The template RNA of glue proteins appears to be synthesized within the range of 72-85 hrs since actinomycin treatment of larvae at this time suppresses the formation of secretory substance. The portion of secretory proteins amounts to 23-32% of the total gland protein. In a mutant, 13tl, deficient by the absence of pupation, no PAS-positive, staining of glands or secretory granules identified under the phase-contrast microscope was found. A possible participation of fat body in the formation of mucoprotein secretory substance is discussed.
描述了粘蛋白（胶水）积累的过程。这种物质由黑腹果蝇三龄幼虫的唾液腺分泌。产卵后90小时，分泌物质的颗粒出现在腺细胞中。其分泌在120小时内发生。由于此时用放线菌素处理幼虫会抑制分泌物质的形成，所以粘蛋白的模板RNA似乎是在72 - 85小时范围内合成的。分泌蛋白的比例占腺体总蛋白的23 - 32%。在一个因不能化蛹而缺陷的突变体13tl中，在相差显微镜下未发现腺体或分泌颗粒的PAS阳性染色。讨论了脂肪体在粘蛋白分泌物质形成中的可能参与情况。
