Ontogeny of the lymphoid organs of Japanese flounder, Paralichthys olivaceus |
| |
Authors: | Liu Yun Jiang Guoliang and Zhang Shicui |
| |
Institution: | (1) College of Marine Life Sciences, Ocean University of China, 266003 Qingdao, P.R. China |
| |
Abstract: | Histological study on the ontogeny of the lymphoid organs, kidney, thymus and spleen of Japanese flounder, Paralichthys olivaceus, from hatching to 40 d was carried out. The pronephric kidney duct appeared early in hatching although the primordial haemopoietic
stem cells were observed within a week after hatching. The spleen was first seen after 8d of hatching. The thymus appeared
after 15d, situated near the pronephric kidney. Small lymphoid cells appeared during the later phase of the post-larval stage
in the sequence of thymus, kidney and spleen. During the 40d of observations, there were no distinct inner or outer zones
in thymus and no red or white pulp in spleen. These results suggest that the nonspecific defense immune system plays a very
important role in the early larval stage of Japanese flounder. |
| |
Keywords: | ontogeny lymphoid organs Japanese flounder |
本文献已被 SpringerLink 等数据库收录! |
|