Further studies on the development of the eye of Drosophila melanogaster. II. The interommatidial bristles

作者：Margaret M. Perry · 发表于：Journal of Morphology · 年份：1968 · DOI：10.1002/jmor.1051240209 · 被引用次数：58 · 研究领域：Silk-based biomaterials and applications、Neurobiology and Insect Physiology Research、Proteins in Food Systems

Abstract An electron microscope examination of the minute bristle organules in the Drosophila eye revealed an organisation characteristic of insect hair sensilla. They were derived from four concentrically arranged cells which were active at the mid‐pupal stage in producing the bristle, socket and receptor structures. Two of the cells degenerated towards the end of pupation, the mature organule consisting of a bipolar sense cell and an accessory cell. Growth in length of the bristle was accompanied by a proliferation of longitudinally oriented microtubules which gradually disappeared after maximum growth had been achieved. The breakdown of microfibrillar aggregates, which were also present as transient structures in the developing bristle and showed some correspondence with the longitudinal ridges formed at the surface, may similarly be related to the establishment of cell shape by the deposition of the cuticle which occurred at the same time.