Oral Assembly in Left-Handed Tetrahymena thermophila
We have investigated oral development in a non-genically derived left-handed (LH) form of Tetrahymena thermophila, in which the large-scale asymmetry of arrangement of cortical structures is reversed whereas the local asymmetry of ciliary architecture remains normal. Approximately 1/2 of the oral ap...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
NELSEN, E. MARLO [verfasserIn] FRANKEL, JOSEPH [verfasserIn] WILLIAMS, NORMAN E. [verfasserIn] |
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| Format: |
E-Artikel |
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| Erschienen: |
Oxford, UK: Blackwell Publishing Ltd ; 1989 |
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| Umfang: |
Online-Ressource |
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| Reproduktion: |
2007 ; Blackwell Publishing Journal Backfiles 1879-2005 |
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In: The journal of eukaryotic microbiology - Oxford [u.a.] : Wiley-Blackwell, 1954, 36(1989), 6, Seite 0 |
| Übergeordnetes Werk: |
volume:36 ; year:1989 ; number:6 ; pages:0 |
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| DOI / URN: |
10.1111/j.1550-7408.1989.tb01101.x |
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NLEJ240640683 |
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| 520 | |a We have investigated oral development in a non-genically derived left-handed (LH) form of Tetrahymena thermophila, in which the large-scale asymmetry of arrangement of cortical structures is reversed whereas the local asymmetry of ciliary architecture remains normal. Approximately 1/2 of the oral apparatuses (OAs) of LH cells develop in the form of superficial mirror-images of OAs of RH cells. In most of these OAs, membranelles are assembled from the cells’anterior to posterior. Nonetheless, the posterior ends of these membranelles undergo the basal body displacements that lead to a “sculptured” appearance, so that the membranelles of LH OAs become organized as rotational permutations of membranelles of normal RH OAs. Many of these membranelles re-orient to a normal orientation near the end of oral development. Membranelles and undulating membranes (UMs) may develop independently of each other, and formation of postciliary microtubules of UMs is separate from that of ribbed wall microtubules. In some cases, the entire OA develops and remains as a 180° rotational permutation of the normal, resembling the inverted OAs of mirror-image doublets and LH cells of Glaucoma scintillans described by Suhama [36, 37]. We present a model (Fig. 37) for these complex developmental outcomes. These developmental patterns resemble those described previously and less completely for “secondary” OAs of cells with mirror-image global patterns, including janus cells. The present study demonstrates that such alterations in oral development are not a direct outcome of genotypic changes. | ||
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10.1111/j.1550-7408.1989.tb01101.x doi (DE-627)NLEJ240640683 DE-627 ger DE-627 rakwb NELSEN, E. MARLO verfasserin aut Oral Assembly in Left-Handed Tetrahymena thermophila Oxford, UK Blackwell Publishing Ltd 1989 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We have investigated oral development in a non-genically derived left-handed (LH) form of Tetrahymena thermophila, in which the large-scale asymmetry of arrangement of cortical structures is reversed whereas the local asymmetry of ciliary architecture remains normal. Approximately 1/2 of the oral apparatuses (OAs) of LH cells develop in the form of superficial mirror-images of OAs of RH cells. In most of these OAs, membranelles are assembled from the cells’anterior to posterior. Nonetheless, the posterior ends of these membranelles undergo the basal body displacements that lead to a “sculptured” appearance, so that the membranelles of LH OAs become organized as rotational permutations of membranelles of normal RH OAs. Many of these membranelles re-orient to a normal orientation near the end of oral development. Membranelles and undulating membranes (UMs) may develop independently of each other, and formation of postciliary microtubules of UMs is separate from that of ribbed wall microtubules. In some cases, the entire OA develops and remains as a 180° rotational permutation of the normal, resembling the inverted OAs of mirror-image doublets and LH cells of Glaucoma scintillans described by Suhama [36, 37]. We present a model (Fig. 37) for these complex developmental outcomes. These developmental patterns resemble those described previously and less completely for “secondary” OAs of cells with mirror-image global patterns, including janus cells. The present study demonstrates that such alterations in oral development are not a direct outcome of genotypic changes. 2007 Blackwell Publishing Journal Backfiles 1879-2005 |2007|||||||||| Basal bodies FRANKEL, JOSEPH verfasserin aut WILLIAMS, NORMAN E. verfasserin aut In The journal of eukaryotic microbiology Oxford [u.a.] : Wiley-Blackwell, 1954 36(1989), 6, Seite 0 Online-Ressource (DE-627)NLEJ243927622 (DE-600)2126326-7 1550-7408 nnns volume:36 year:1989 number:6 pages:0 http://dx.doi.org/10.1111/j.1550-7408.1989.tb01101.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 36 1989 6 0 |
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10.1111/j.1550-7408.1989.tb01101.x doi (DE-627)NLEJ240640683 DE-627 ger DE-627 rakwb NELSEN, E. MARLO verfasserin aut Oral Assembly in Left-Handed Tetrahymena thermophila Oxford, UK Blackwell Publishing Ltd 1989 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We have investigated oral development in a non-genically derived left-handed (LH) form of Tetrahymena thermophila, in which the large-scale asymmetry of arrangement of cortical structures is reversed whereas the local asymmetry of ciliary architecture remains normal. Approximately 1/2 of the oral apparatuses (OAs) of LH cells develop in the form of superficial mirror-images of OAs of RH cells. In most of these OAs, membranelles are assembled from the cells’anterior to posterior. Nonetheless, the posterior ends of these membranelles undergo the basal body displacements that lead to a “sculptured” appearance, so that the membranelles of LH OAs become organized as rotational permutations of membranelles of normal RH OAs. Many of these membranelles re-orient to a normal orientation near the end of oral development. Membranelles and undulating membranes (UMs) may develop independently of each other, and formation of postciliary microtubules of UMs is separate from that of ribbed wall microtubules. In some cases, the entire OA develops and remains as a 180° rotational permutation of the normal, resembling the inverted OAs of mirror-image doublets and LH cells of Glaucoma scintillans described by Suhama [36, 37]. We present a model (Fig. 37) for these complex developmental outcomes. These developmental patterns resemble those described previously and less completely for “secondary” OAs of cells with mirror-image global patterns, including janus cells. The present study demonstrates that such alterations in oral development are not a direct outcome of genotypic changes. 2007 Blackwell Publishing Journal Backfiles 1879-2005 |2007|||||||||| Basal bodies FRANKEL, JOSEPH verfasserin aut WILLIAMS, NORMAN E. verfasserin aut In The journal of eukaryotic microbiology Oxford [u.a.] : Wiley-Blackwell, 1954 36(1989), 6, Seite 0 Online-Ressource (DE-627)NLEJ243927622 (DE-600)2126326-7 1550-7408 nnns volume:36 year:1989 number:6 pages:0 http://dx.doi.org/10.1111/j.1550-7408.1989.tb01101.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 36 1989 6 0 |
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10.1111/j.1550-7408.1989.tb01101.x doi (DE-627)NLEJ240640683 DE-627 ger DE-627 rakwb NELSEN, E. MARLO verfasserin aut Oral Assembly in Left-Handed Tetrahymena thermophila Oxford, UK Blackwell Publishing Ltd 1989 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We have investigated oral development in a non-genically derived left-handed (LH) form of Tetrahymena thermophila, in which the large-scale asymmetry of arrangement of cortical structures is reversed whereas the local asymmetry of ciliary architecture remains normal. Approximately 1/2 of the oral apparatuses (OAs) of LH cells develop in the form of superficial mirror-images of OAs of RH cells. In most of these OAs, membranelles are assembled from the cells’anterior to posterior. Nonetheless, the posterior ends of these membranelles undergo the basal body displacements that lead to a “sculptured” appearance, so that the membranelles of LH OAs become organized as rotational permutations of membranelles of normal RH OAs. Many of these membranelles re-orient to a normal orientation near the end of oral development. Membranelles and undulating membranes (UMs) may develop independently of each other, and formation of postciliary microtubules of UMs is separate from that of ribbed wall microtubules. In some cases, the entire OA develops and remains as a 180° rotational permutation of the normal, resembling the inverted OAs of mirror-image doublets and LH cells of Glaucoma scintillans described by Suhama [36, 37]. We present a model (Fig. 37) for these complex developmental outcomes. These developmental patterns resemble those described previously and less completely for “secondary” OAs of cells with mirror-image global patterns, including janus cells. The present study demonstrates that such alterations in oral development are not a direct outcome of genotypic changes. 2007 Blackwell Publishing Journal Backfiles 1879-2005 |2007|||||||||| Basal bodies FRANKEL, JOSEPH verfasserin aut WILLIAMS, NORMAN E. verfasserin aut In The journal of eukaryotic microbiology Oxford [u.a.] : Wiley-Blackwell, 1954 36(1989), 6, Seite 0 Online-Ressource (DE-627)NLEJ243927622 (DE-600)2126326-7 1550-7408 nnns volume:36 year:1989 number:6 pages:0 http://dx.doi.org/10.1111/j.1550-7408.1989.tb01101.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 36 1989 6 0 |
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10.1111/j.1550-7408.1989.tb01101.x doi (DE-627)NLEJ240640683 DE-627 ger DE-627 rakwb NELSEN, E. MARLO verfasserin aut Oral Assembly in Left-Handed Tetrahymena thermophila Oxford, UK Blackwell Publishing Ltd 1989 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We have investigated oral development in a non-genically derived left-handed (LH) form of Tetrahymena thermophila, in which the large-scale asymmetry of arrangement of cortical structures is reversed whereas the local asymmetry of ciliary architecture remains normal. Approximately 1/2 of the oral apparatuses (OAs) of LH cells develop in the form of superficial mirror-images of OAs of RH cells. In most of these OAs, membranelles are assembled from the cells’anterior to posterior. Nonetheless, the posterior ends of these membranelles undergo the basal body displacements that lead to a “sculptured” appearance, so that the membranelles of LH OAs become organized as rotational permutations of membranelles of normal RH OAs. Many of these membranelles re-orient to a normal orientation near the end of oral development. Membranelles and undulating membranes (UMs) may develop independently of each other, and formation of postciliary microtubules of UMs is separate from that of ribbed wall microtubules. In some cases, the entire OA develops and remains as a 180° rotational permutation of the normal, resembling the inverted OAs of mirror-image doublets and LH cells of Glaucoma scintillans described by Suhama [36, 37]. We present a model (Fig. 37) for these complex developmental outcomes. These developmental patterns resemble those described previously and less completely for “secondary” OAs of cells with mirror-image global patterns, including janus cells. The present study demonstrates that such alterations in oral development are not a direct outcome of genotypic changes. 2007 Blackwell Publishing Journal Backfiles 1879-2005 |2007|||||||||| Basal bodies FRANKEL, JOSEPH verfasserin aut WILLIAMS, NORMAN E. verfasserin aut In The journal of eukaryotic microbiology Oxford [u.a.] : Wiley-Blackwell, 1954 36(1989), 6, Seite 0 Online-Ressource (DE-627)NLEJ243927622 (DE-600)2126326-7 1550-7408 nnns volume:36 year:1989 number:6 pages:0 http://dx.doi.org/10.1111/j.1550-7408.1989.tb01101.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 36 1989 6 0 |
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10.1111/j.1550-7408.1989.tb01101.x doi (DE-627)NLEJ240640683 DE-627 ger DE-627 rakwb NELSEN, E. MARLO verfasserin aut Oral Assembly in Left-Handed Tetrahymena thermophila Oxford, UK Blackwell Publishing Ltd 1989 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We have investigated oral development in a non-genically derived left-handed (LH) form of Tetrahymena thermophila, in which the large-scale asymmetry of arrangement of cortical structures is reversed whereas the local asymmetry of ciliary architecture remains normal. Approximately 1/2 of the oral apparatuses (OAs) of LH cells develop in the form of superficial mirror-images of OAs of RH cells. In most of these OAs, membranelles are assembled from the cells’anterior to posterior. Nonetheless, the posterior ends of these membranelles undergo the basal body displacements that lead to a “sculptured” appearance, so that the membranelles of LH OAs become organized as rotational permutations of membranelles of normal RH OAs. Many of these membranelles re-orient to a normal orientation near the end of oral development. Membranelles and undulating membranes (UMs) may develop independently of each other, and formation of postciliary microtubules of UMs is separate from that of ribbed wall microtubules. In some cases, the entire OA develops and remains as a 180° rotational permutation of the normal, resembling the inverted OAs of mirror-image doublets and LH cells of Glaucoma scintillans described by Suhama [36, 37]. We present a model (Fig. 37) for these complex developmental outcomes. These developmental patterns resemble those described previously and less completely for “secondary” OAs of cells with mirror-image global patterns, including janus cells. The present study demonstrates that such alterations in oral development are not a direct outcome of genotypic changes. 2007 Blackwell Publishing Journal Backfiles 1879-2005 |2007|||||||||| Basal bodies FRANKEL, JOSEPH verfasserin aut WILLIAMS, NORMAN E. verfasserin aut In The journal of eukaryotic microbiology Oxford [u.a.] : Wiley-Blackwell, 1954 36(1989), 6, Seite 0 Online-Ressource (DE-627)NLEJ243927622 (DE-600)2126326-7 1550-7408 nnns volume:36 year:1989 number:6 pages:0 http://dx.doi.org/10.1111/j.1550-7408.1989.tb01101.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 36 1989 6 0 |
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Oral Assembly in Left-Handed Tetrahymena thermophila |
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We have investigated oral development in a non-genically derived left-handed (LH) form of Tetrahymena thermophila, in which the large-scale asymmetry of arrangement of cortical structures is reversed whereas the local asymmetry of ciliary architecture remains normal. Approximately 1/2 of the oral apparatuses (OAs) of LH cells develop in the form of superficial mirror-images of OAs of RH cells. In most of these OAs, membranelles are assembled from the cells’anterior to posterior. Nonetheless, the posterior ends of these membranelles undergo the basal body displacements that lead to a “sculptured” appearance, so that the membranelles of LH OAs become organized as rotational permutations of membranelles of normal RH OAs. Many of these membranelles re-orient to a normal orientation near the end of oral development. Membranelles and undulating membranes (UMs) may develop independently of each other, and formation of postciliary microtubules of UMs is separate from that of ribbed wall microtubules. In some cases, the entire OA develops and remains as a 180° rotational permutation of the normal, resembling the inverted OAs of mirror-image doublets and LH cells of Glaucoma scintillans described by Suhama [36, 37]. We present a model (Fig. 37) for these complex developmental outcomes. These developmental patterns resemble those described previously and less completely for “secondary” OAs of cells with mirror-image global patterns, including janus cells. The present study demonstrates that such alterations in oral development are not a direct outcome of genotypic changes. |
| abstractGer |
We have investigated oral development in a non-genically derived left-handed (LH) form of Tetrahymena thermophila, in which the large-scale asymmetry of arrangement of cortical structures is reversed whereas the local asymmetry of ciliary architecture remains normal. Approximately 1/2 of the oral apparatuses (OAs) of LH cells develop in the form of superficial mirror-images of OAs of RH cells. In most of these OAs, membranelles are assembled from the cells’anterior to posterior. Nonetheless, the posterior ends of these membranelles undergo the basal body displacements that lead to a “sculptured” appearance, so that the membranelles of LH OAs become organized as rotational permutations of membranelles of normal RH OAs. Many of these membranelles re-orient to a normal orientation near the end of oral development. Membranelles and undulating membranes (UMs) may develop independently of each other, and formation of postciliary microtubules of UMs is separate from that of ribbed wall microtubules. In some cases, the entire OA develops and remains as a 180° rotational permutation of the normal, resembling the inverted OAs of mirror-image doublets and LH cells of Glaucoma scintillans described by Suhama [36, 37]. We present a model (Fig. 37) for these complex developmental outcomes. These developmental patterns resemble those described previously and less completely for “secondary” OAs of cells with mirror-image global patterns, including janus cells. The present study demonstrates that such alterations in oral development are not a direct outcome of genotypic changes. |
| abstract_unstemmed |
We have investigated oral development in a non-genically derived left-handed (LH) form of Tetrahymena thermophila, in which the large-scale asymmetry of arrangement of cortical structures is reversed whereas the local asymmetry of ciliary architecture remains normal. Approximately 1/2 of the oral apparatuses (OAs) of LH cells develop in the form of superficial mirror-images of OAs of RH cells. In most of these OAs, membranelles are assembled from the cells’anterior to posterior. Nonetheless, the posterior ends of these membranelles undergo the basal body displacements that lead to a “sculptured” appearance, so that the membranelles of LH OAs become organized as rotational permutations of membranelles of normal RH OAs. Many of these membranelles re-orient to a normal orientation near the end of oral development. Membranelles and undulating membranes (UMs) may develop independently of each other, and formation of postciliary microtubules of UMs is separate from that of ribbed wall microtubules. In some cases, the entire OA develops and remains as a 180° rotational permutation of the normal, resembling the inverted OAs of mirror-image doublets and LH cells of Glaucoma scintillans described by Suhama [36, 37]. We present a model (Fig. 37) for these complex developmental outcomes. These developmental patterns resemble those described previously and less completely for “secondary” OAs of cells with mirror-image global patterns, including janus cells. The present study demonstrates that such alterations in oral development are not a direct outcome of genotypic changes. |
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| title_short |
Oral Assembly in Left-Handed Tetrahymena thermophila |
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http://dx.doi.org/10.1111/j.1550-7408.1989.tb01101.x |
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FRANKEL, JOSEPH WILLIAMS, NORMAN E. |
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| doi_str |
10.1111/j.1550-7408.1989.tb01101.x |
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2024-07-06T10:31:42.681Z |
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