[Dissociation-reaggregation experiments in cnidarians as a model system for study of regulative capacity of metazoan development].

Pub Date : 2016-11-01
A O Kirillova, Yu A Kraus, A V Markov
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引用次数: 0

Abstract

Developmental processes of cnidarians, the basal metazoan representatives, possess extremely high regulative ability. It is known that any isolated fragment of the freshwater polyp hydra's body can regenerate an intact animal. Moreover, in many cnidarian species, suspension of single dissociated cells can form aggregates, which regenerate normal body plan of polyp or medusa. This process can be considered as an extreme case of regeneration. The development of cell reaggregates of Hydra is a conventional experimental system to study the physical basis of morphogenesis. Investigations of the cnidarians' reaggregate development help to clarify basic rules and mechanisms of the metazoan body plan formation and the role of self-organization in the metazoan early development. In this review, we summarize the data revealed by dissociation - reaggregation experiments performed on the representatives of different cnidarian taxa. We also analyze the data on the morphogenetic and molecular basis of the reaggregate development from randomly organized group of cells to cnidarian-specific body plan.

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[刺胞动物的解离-再聚集实验作为后生动物发育调节能力研究的模型系统]。
作为基础后生动物的代表,刺胞动物的发育过程具有极高的调控能力。众所周知,淡水水螅身体的任何分离碎片都可以再生成完整的动物。此外,在许多刺胞动物物种中,单个分离细胞的悬浮液可以形成聚集体,从而再生出正常的水螅或水母体表。这个过程可以被认为是再生的一个极端情况。九头蛇细胞重聚集体的发育是研究形态发生物理基础的常规实验系统。研究刺胞动物的重组发育有助于阐明后生动物体形形成的基本规律和机制,以及自组织在后生动物早期发育中的作用。本文综述了不同刺胞动物分类群的分离-再聚集实验结果。我们还分析了从随机组织的细胞群到刺胞细胞特异性体计划的再聚集发育的形态发生和分子基础数据。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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