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Description: English: Two cells of complementary mating types pair to exchange nuclei during sexual conjugation. Date: 8 March 2016. Source: Own work. Author:
Jmf368w.
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Description: English: Tetrahymena conjugation When nutrients are scarce, two individuals (A) pair with each other and begin sexual reproduction (conjugation). (B) The diploid micronucleus in each individual undergoes meiosis to form four haploid nuclei, and three of these are degraded. (C) The remaining haploid nucleus divides mitotically to form two pronuclei in each cell. (D) One of the two pronuclei in each cell is exchanged with the mating partner, and fusion leads to he formation of the diploid zygotic nucleus. (E) The zygotic nucleus divides twice mitotically to form four nuclei. (F) Two nuclei become micronuclei, and the other two differentiate to become macronuclei; the original parental macronucleus is degraded. (G) Cell division occurs and the nuclei are distributed to the daughter cells so that each progeny receives one micronucleus and one macronucleus. Date: 16 April 2014, 11:58:27. Source: Own work. Author:
Chaya5260.
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Tetrahymena pyriformis Scale bar indicates 10 µm. From the culture collection of University Duisburg-Essen, AG Boenigk, original culture from University Wuppertal. This image was taken using Zeiss Axioplan with Canon EOS 600D.Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: Protist culture of University Duisburg-Essen (Germany) Latitude: 51.463807 Longitude: 7.005321 Multiebenen-Abbildung, manuell gestapelt. Der Messbalken markiert eine Länge von 10 µm. Aus der Kulturensammlung der Uni Duisburg-Essen AG Boenigk; diese Kultur stammt von der Uni Wuppertal. Mikrotechnik: Zeiss Axioplan, Kamera: Canon EOS 600D. Creative Commons License V 3.0 (CC BY-NC-SA). For permission to use of (high-resolution) images please contact postmaster@protisten.de.
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Tetrahymena pyriformis Scale bar indicates 10 µm. From the culture collection of University Duisburg-Essen, AG Boenigk, original culture from University Wuppertal. This image was taken using Zeiss Axioplan with Canon EOS 600D.Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: Protist culture of University Duisburg-Essen (Germany) Latitude: 51.463807 Longitude: 7.005321 Multiebenen-Abbildung, manuell gestapelt. Der Messbalken markiert eine Länge von 10 µm. Aus der Kulturensammlung der Uni Duisburg-Essen AG Boenigk; diese Kultur stammt von der Uni Wuppertal. Mikrotechnik: Zeiss Axioplan, Kamera: Canon EOS 600D. Creative Commons License V 3.0 (CC BY-NC-SA). For permission to use of (high-resolution) images please contact postmaster@protisten.de.
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Tetrahymena pyriformis Scale bar indicates 25 µm. From the culture collection of University Duisburg-Essen, AG Boenigk, original culture from University Wuppertal. This image was taken using Zeiss Axioplan with Canon EOS 600D.Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: Protist culture of University Duisburg-Essen (Germany) Latitude: 51.463807 Longitude: 7.005321 Multiebenen-Abbildung, manuell gestapelt. Der Messbalken markiert eine Länge von 25 µm. Aus der Kulturensammlung der Uni Duisburg-Essen AG Boenigk; diese Kultur stammt von der Uni Wuppertal. Mikrotechnik: Zeiss Axioplan, Kamera: Canon EOS 600D. Creative Commons License V 3.0 (CC BY-NC-SA). For permission to use of (high-resolution) images please contact postmaster@protisten.de.
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Tetrahymena pyriformis Scale bar indicates 10 µm. From the culture collection of University Duisburg-Essen, AG Boenigk, original culture from University Wuppertal. This image was taken using Zeiss Axioplan with Canon EOS 600D.Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: Protist culture of University Duisburg-Essen (Germany) Latitude: 51.463807 Longitude: 7.005321 Multiebenen-Abbildung, manuell gestapelt. Der Messbalken markiert eine Länge von 10 µm. Aus der Kulturensammlung der Uni Duisburg-Essen AG Boenigk; diese Kultur stammt von der Uni Wuppertal. Mikrotechnik: Zeiss Axioplan, Kamera: Canon EOS 600D. Creative Commons License V 3.0 (CC BY-NC-SA). For permission to use of (high-resolution) images please contact postmaster@protisten.de.
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Tetrahymena pyriformis Scale bar indicates 25 µm. From the culture collection of University Duisburg-Essen, AG Boenigk, original culture from University Wuppertal. This image was taken using Zeiss Axioplan with Canon EOS 600D.Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: Protist culture of University Duisburg-Essen (Germany) Latitude: 51.463807 Longitude: 7.005321 Multiebenen-Abbildung, manuell gestapelt. Der Messbalken markiert eine Länge von 25 µm. Aus der Kulturensammlung der Uni Duisburg-Essen AG Boenigk; diese Kultur stammt von der Uni Wuppertal. Mikrotechnik: Zeiss Axioplan, Kamera: Canon EOS 600D. Creative Commons License V 3.0 (CC BY-NC-SA). For permission to use of (high-resolution) images please contact postmaster@protisten.de.
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Tetrahymena pyriformis Scale bar indicates 10 µm. From the culture collection of University Duisburg-Essen, AG Boenigk, original culture from University Wuppertal. This image was taken using Zeiss Axioplan with Canon EOS 600D.Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: Protist culture of University Duisburg-Essen (Germany) Latitude: 51.463807 Longitude: 7.005321 Multiebenen-Abbildung, manuell gestapelt. Der Messbalken markiert eine Länge von 10 µm. Aus der Kulturensammlung der Uni Duisburg-Essen AG Boenigk; diese Kultur stammt von der Uni Wuppertal. Mikrotechnik: Zeiss Axioplan, Kamera: Canon EOS 600D. Creative Commons License V 3.0 (CC BY-NC-SA). For permission to use of (high-resolution) images please contact postmaster@protisten.de.
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Galende, Castilla y Len, Espaa
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Tetrahymena (tet-ra-high-men-a), only one thread on the entire slide and it has to land on me.
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Tetrahymena (tet-ra-high-men-a) is an oligohymenophoran ciliate. There are cilia in about 20 kineties (rows) over the body and which are used for cell locomotion. There is also a group of three membranelles and an undulating membrane around the cytostome (upper left), and these are the buccal or oral cilia and are used in food capture. In nature often associated with damaged animals or dead tissue, may eat bacteria. Widely used in laboratory studies, and axenic (bacteria-free) cultures are maintained within high protein medium. This cell is slightly compressed. Phase contrast.
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Tetrahymena (tet-ra-high-men-a) is an oligohymenophoran ciliate. There are cilia in about 20 kineties (rows) over the body and which are used for cell locomotion. There is also a group of three membranelles and an undulating membrane around the cytostome, and these are the buccal or oral cilia and are used in food capture. In nature often associated with damaged animals or dead tissue, may eat bacteria. Widely used in laboratory studies, and axenic (bacteria-free) cultures are maintained within high protein medium. cells pear-shaped. Phase contrast.
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Tetrahymena (tet-ra-high-men-a) is an oligohymenophoran ciliate. There are cilia in about 20 kineties (rows) over the body and which are used for cell locomotion. There is also a group of three membranelles and an undulating membrane around the cytostome (upper right), and these are the buccal or oral cilia and are used in food capture. In nature often associated with damaged animals or dead tissue, may eat bacteria. Widely used in laboratory studies, and axenic (bacteria-free) cultures are maintained within high protein medium. Cells are pear-shaped. Differential interference contrast.
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Tetrahymena (tet-ra-high-men-a) is an oligohymenophoran ciliate. There are cilia in about 20 kineties (rows) over the body and which are used for cell locomotion. There is also a group of three membranelles and an undulating membrane around the cytostome (upper left), and these are the buccal or oral cilia and are used in food capture. In nature often associated with damaged animals or dead tissue, may eat bacteria. Widely used in laboratory studies, and axenic (bacteria-free) cultures are maintained within high protein medium. Cells pear-shaped. Phase contrast.
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Tetrahymena (tet-ra-high-men-a) is an oligohymenophoran ciliate. There are cilia in about 20 kineties (rows) over the body and which are used for cell locomotion. There is also a group of three membranelles and an undulating membrane around the cytostome (upper left), and these are the buccal or oral cilia and are used in food capture. In nature often associated with damaged animals or dead tissue, may eat bacteria. Widely used in laboratory studies, and axenic (bacteria-free) cultures are maintained within high protein medium. Cells pear-shaped. Phase contrast.
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Tetrahymena (tet-ra-high-men-a) is an oligohymenophoran ciliate. Widely used in laboratory studies, and axenic (bacteria-free) cultures are maintained within high protein medium. In nature often associated with damaged animals or dead tissue. This occurrence within the cytoskeleton where they may feed on residual tissue (pieces left behind if the cytoskeleton has been shed) or on the body tissue (if the crustacea was damaged) is a good example of where this genus might be found in nature. Dark ground.
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