ダウンロード数 : ?
言語
英語
著者
Inoue-Matsuo, Asuka
Onodera, Itaru
内容記述(抄録等)
This study presented detailed descriptions of parenchymal arrangements in the livers of 23 reptilian species using light microscopy, and extensively discussed this from a phylogenetic viewpoint. Hepatocyte sinusoidal structures (HSS) were classified into three different types: (I) the several-cell-thick plate type, (II) two-cell-thick plate type, and (III) one-cell-thick plate type. Parenchymal arrangements showed either the combined two- and one-cell-thick plate type or one-cell-thick plate type, whereas the sea snake in the sub-order Serpentes showed the several-cell-thick plate type. In the order Testudines, peripheral sinusoids near terminal portal veins were tortuous, becoming straighter toward terminal central veins. Melanomacrophages (MMs) were observed in sinusoidal capillaries in the order Testudinata, Crocodilia, and Squamata, but not in the sub-order Serpentes (except for the sea snake). This study showed that the architecture of the parenchymal arrangement was related to the phylogenetic relationship, whereas the distribution of MMs may not be. The MMs systems of turtles, alligators, and sea snakes, whose place of main habitation is underwater, may have adapted according to ecological and behavioral patterns. Based on the hepatic architecture of parenchymal arrangements and the distribution of MMs, it was suggested that reptilian livers acquired the division of three zones in the acinus.
主題
Liver
Reptilian
Parenchymal arrangements
Melanomacrophages
Phylogeny
Evolution
掲載誌名
Journal of Phylogenetics & Evolutionary Biology
4
1
開始ページ
1000161
ISSN
23299002
発行日
2015-12-11
DOI
出版者
OMICS International
資料タイプ
学術雑誌論文
権利関係
© 2015 Akiyoshi H, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
業績ID
e29847
部局
生物資源科学部 生物科学科
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