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. 1970 Sep 1;46(3):553–563. doi: 10.1083/jcb.46.3.553

BASAL BODY REPLICATION AND CILIOGENESIS IN A SUCTORIAN, TOKOPHRYA INFUSIONUM

Lyndell L Millecchia 1, Maria A Rudzinska 1
PMCID: PMC2107878  PMID: 4349131

Abstract

Basal body replication and ciliogenesis in Tokophrya infusionum were studied in synchronized cultures. Basal body replication occurs during the 1st hr of reproduction, which in Tokophrya is by internal budding. The number of basal bodies increases from about 20 to over 300 within this period. New basal bodies develop in association with mature basal bodies; they are formed at right angles to the mature basal body as short "probasal" bodies, which elongate, slant upward, become parallel to the mature basal body, and elongate to the mature size. Ciliogenesis occurs only during reproduction; the nonreproducing adult is not ciliated, and has only 18–25 barren basal bodies. Cilia first appear as short bulges above the basal body. The axonemal structure is incomplete at first, with one or both central microtubules absent, and occasionally the B fibers of the outer doublets are missing. Several accessory fibers are associated with the basal bodies, both in the adult and during reproduction. One of the fibers appears only after the cilia have sprouted. The scheme of basal body replication and ciliogenesis in Tokophrya is compared to that reported in other organisms, and the role of the accessory fibers is discussed.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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