Hydra have thin, parallel actomyosin fibers running throughout their body, like our muscle tissue.

水螅有细而平行的肌动球蛋白纤维遍布全身，就像我们的肌肉组织一样。

Open rings did even worse – that extra cut made figuring out actomyosin alignment even trickier.

开口环的效果更糟——额外的切割使得肌动球蛋白排列变得更加棘手。

The alignment of actomyosin fibers in the spheroid lays out a structure that gets inherited throughout the new hydra’s body.

球状体中肌动球蛋白纤维的排列构成了一种结构，该结构在整个新水螅体内得到遗传。

Square tissue chunks folded really well, because the actomyosin fibers were stable and aligned, and the outer edges were flexible and could follow those fibers’ lead.

正方形组织块折叠得非常好，因为肌动球蛋白纤维稳定且排列整齐， 外缘柔韧，可以跟随这些纤维的引导。

On the other hand, slices of hydra shaped like closed rings didn’t fold so well, and formed spheroids with different regions of actomyosin aligned in different ways.

另一方面，形状像闭合环的水螅切片折叠得不太好， 形成了不同区域的肌动球蛋白以不同方式排列的球体。

But here’s the thing: when the researchers threaded thin platinum wires into these ring-shaped fragments, they were more likely to regenerate correctly, and do it faster – maybe because the actomyosin fibers had more of a guide.

但事情是这样的：当研究人员将细铂丝穿入这些环形碎片时，它们更有可能正确再生，而且再生速度更快——可能是因为肌动球蛋白纤维有更多的导向。