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BASAL BODY REPLICATION AND CILIOGENESIS IN A SUCTORIAN, TOKOPHRYA INFUSIONUM

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 ba...

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Autores principales: Millecchia, Lyndell L., Rudzinska, Maria A.
Formato: Texto
Lenguaje:English
Publicado: The Rockefeller University Press 1970
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2107878/
https://www.ncbi.nlm.nih.gov/pubmed/4349131
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author Millecchia, Lyndell L.
Rudzinska, Maria A.
author_facet Millecchia, Lyndell L.
Rudzinska, Maria A.
author_sort Millecchia, Lyndell L.
collection PubMed
description 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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spelling pubmed-21078782008-05-01 BASAL BODY REPLICATION AND CILIOGENESIS IN A SUCTORIAN, TOKOPHRYA INFUSIONUM Millecchia, Lyndell L. Rudzinska, Maria A. J Cell Biol Article 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. The Rockefeller University Press 1970-09-01 /pmc/articles/PMC2107878/ /pubmed/4349131 Text en Copyright © 1970 by The Rockefeller University Press This article is distributed under the terms of an Attribution–Noncommercial–Share Alike–No Mirror Sites license for the first six months after the publication date (see http://www.rupress.org/terms). After six months it is available under a Creative Commons License (Attribution–Noncommercial–Share Alike 4.0 Unported license, as described at http://creativecommons.org/licenses/by-nc-sa/4.0/).
spellingShingle Article
Millecchia, Lyndell L.
Rudzinska, Maria A.
BASAL BODY REPLICATION AND CILIOGENESIS IN A SUCTORIAN, TOKOPHRYA INFUSIONUM
title BASAL BODY REPLICATION AND CILIOGENESIS IN A SUCTORIAN, TOKOPHRYA INFUSIONUM
title_full BASAL BODY REPLICATION AND CILIOGENESIS IN A SUCTORIAN, TOKOPHRYA INFUSIONUM
title_fullStr BASAL BODY REPLICATION AND CILIOGENESIS IN A SUCTORIAN, TOKOPHRYA INFUSIONUM
title_full_unstemmed BASAL BODY REPLICATION AND CILIOGENESIS IN A SUCTORIAN, TOKOPHRYA INFUSIONUM
title_short BASAL BODY REPLICATION AND CILIOGENESIS IN A SUCTORIAN, TOKOPHRYA INFUSIONUM
title_sort basal body replication and ciliogenesis in a suctorian, tokophrya infusionum
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2107878/
https://www.ncbi.nlm.nih.gov/pubmed/4349131
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