QUANTITATIVE-ANALYSIS OF CELL-TYPES DURING GROWTH, DEGROWTH AND REGENERATION IN THE PLANARIANS DUGESIA-MEDITERRANEA AND DUGESIA-TIGRINA
QUANTITATIVE-ANALYSIS OF CELL-TYPES DURING GROWTH, DEGROWTH AND REGENERATION IN THE PLANARIANS DUGESIA-MEDITERRANEA AND DUGESIA-TIGRINA
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DOI：
10.1007/bf00026179
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发表时间：
1981-01-01
期刊：
影响因子：
2.6
通讯作者：
ROMERO, R
中科院分区：
文献类型：
--
作者：
BAGUNA, J;ROMERO, R
本文采用组织浸解法对三角洲三角洲和虎三角洲的基本细胞类型进行了鉴定，并对三角洲三角洲和虎三角洲在生长、退化和再生过程中的细胞总数和细胞类型的分布进行了测定，共鉴定出13种基本细胞类型。细胞总数随着体长和体积的增加而增加，而细胞类型的分布仅受到轻微影响。生长和退化主要通过总细胞数的变化发生，仅中度影响细胞分布。在再生过程中，在芽基中的neoblast密度的增加，随后在神经细胞的增加是更显着的变化detected.These结果进行了讨论有关的细胞更新，芽基的形成和组织极性的维持机制。
A method of tissue maceration (dissociation) of planarian tissues into single cells was used to characterize the basic cell types in the planariansDugesia mediterraneaandDugesia tigrina, and to determine the total cell number and distribution of cell types during growth, degrowth and regeneration.Using this method, 13 basic cell types have been determined for both species. The total number of cells increases with body length and volume whereas the distribution of cell types is only slightly affected. Growth and degrowth occur mainly through changes in total cell number leaving cell distribution only moderately affected. During regeneration, an increase in neoblast density in the blastema followed later on by increases in nerve cells are the more significant changes detected.These results are discussed in relation to mechanisms of cell renewal, blastema formation and maintenance of tissue polarity.