Each one has a central supporting rod of microtubules that gives it this rigid structure.

每一个都有一个由微管组成的中央支撑杆，使其具有这种刚性结构。

Dr Schwartz and his team coaxed embryonic stem cells to become retinal pigment epithelium tissue which supports the rod and cone cells that actually respond to light

他的团队诱导胚胎干细胞成为视网膜色素上皮组织细胞－其中的杆细胞及锥晶细胞对光线敏感。