当小孢子发育至成熟期，细胞内的微管束变得纤细，而网络则变得紧密。
At the late stage of microspore formation, microtubule bundles became thinner and reticulately oriented to form a tightly knitted network.
结论：CDPS能促进细胞进入分裂期，并推断其对小鼠胸腺淋巴细胞增殖的促进作用与其促进小鼠胸腺淋巴细胞内钙释放有关。
Conclusion: The enhancing effect of CDPS on murine thymus lymphocyte proliferation is related to its promotion on thymus intracellular calcium delivering.
用本法试测立克次体在宿主细胞内的生长曲线，只表现出迟缓期及对数生长期，而无稳定期及衰退期。
Determined growth curve of R. prowazekii in host cells displayed only the lag and log phases without stationary and declining phases.
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