Abrams Michael J, Goentoro Lea
Division of Biology and Biological Engineering, California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125, USA.
Division of Biology and Biological Engineering, California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125, USA.
Zoology (Jena). 2016 Feb;119(1):1-3. doi: 10.1016/j.zool.2015.10.001. Epub 2015 Nov 4.
We recently reported a previously unidentified strategy of self-repair in the moon jellyfish Aurelia aurita. Rather than regenerating lost parts, juvenile Aurelia reorganize remaining parts to regain essential body symmetry. This process that we called symmetrization is rapid and frequent, and is not driven by cell proliferation or cell death. Instead, the swimming machinery generates mechanical forces that drive symmetrization. We found evidence for symmetrization across three other species of jellyfish (Chrysaora pacifica, Mastigias sp., and Cotylorhiza tuberculata). We propose reorganization to regain function without recovery of initial morphology as a potentially broad class of self-repair strategy beyond radially symmetrical animals, and discuss the implications of this finding on the evolution of self-repair strategies in animals.
我们最近报道了一种此前未被识别的海月水母（Aurelia aurita）自我修复策略。幼年海月水母并非再生失去的部分，而是重新组织剩余部分以恢复基本的身体对称性。我们将这个过程称为对称化，它迅速且频繁，并非由细胞增殖或细胞死亡驱动。相反，游泳机制产生驱动对称化的机械力。我们发现了另外三种水母（太平洋海蜇、Mastigias sp.和地中海蛋黄水母）存在对称化的证据。我们提出，重新组织以恢复功能而不恢复初始形态是一种可能广泛存在于辐射对称动物之外的自我修复策略，并讨论了这一发现对动物自我修复策略进化的影响。
