摘要

A novel site for hematopoietic organ closely associated with the dorsal vessel (HPO-DV) in the fifth-final larvae of Bombyx mori L. was described. HPO-DV is composed of several lobes located very close to the dorsal vessel in the thorax and in the abdominal segments of the larvae. The anterior lobes contain big secretory cells. Loose hemocyte clusters among the secretory cells were observed particularly in the posterior lobes. When the HPO-DV was cultured in the absence of hemolymph; prohemocytes, plasmatocytes, and granulocytes were released from the hematopoietic organ. Cultured hemocytes from two sources, released from HPO-DV and circulating in the hemolymph, were compared under inverted microscope. They remained the suspended in culture medium. Conversely, the cells in the hemolymph immediately adhered on the flask. This different behavior of the cells obtained from different sources implies that the cells produced from the HPO-DV probably continue to differentiate in the hemocoel.

  • 出版日期2010-6