Cyst Formation in a Freshwater Strain of the Choanoflagellate Desmarella moniliformis Kent
. Cyst formation in a freshwater strain of the colonial freshwater Choanoflagellate Desmarella moniliformis Kent (Protozoa; Choanoflagellida) has been studied with light and electron microscopy for the first time. Batch cultures inoculated with motile vegetative cells start to produce cysts within 3...
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| Autor*in: |
LEADBEATER, BARRY S. C. [verfasserIn] KARPOV, SERGUEI A. [verfasserIn] |
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| Format: |
E-Artikel |
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| Erschienen: |
Oxford, UK: Blackwell Publishing Ltd ; 2000 |
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Online-Ressource |
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2005 ; Blackwell Publishing Journal Backfiles 1879-2005 |
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In: The journal of eukaryotic microbiology - Oxford [u.a.] : Wiley-Blackwell, 1954, 47(2000), 5, Seite 0 |
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volume:47 ; year:2000 ; number:5 ; pages:0 |
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10.1111/j.1550-7408.2000.tb00071.x |
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| 520 | |a . Cyst formation in a freshwater strain of the colonial freshwater Choanoflagellate Desmarella moniliformis Kent (Protozoa; Choanoflagellida) has been studied with light and electron microscopy for the first time. Batch cultures inoculated with motile vegetative cells start to produce cysts within 3 days during the exponential phase of growth. Cyst production proceeds until in late stationary phase there is a preponderance of cysts. Transfer of cysts to fresh medium results in limited excystment. Encystment involves the production of electron-dense fibrillar wall material, firstly around the neck of the cell and then around the posterior end. As the wall material is deposited the neck of the cell elongates and the dictyosome rotates from the horizontal to vertical plane. The number of mitochondrial profiles seen in individual sections of cells increases. Finally the neck of the cell is retracted, the flagellum and collar tentacles are withdrawn, and the bottom of the neck of the cyst wall is sealed with a diaphragm of wall material. Excystment, which has not been observed directly, appears to involve the disruption of the wall at the base of the neck, the remainder of the cyst wall remains intact. Comparisons are made between encystment in Desmarella and cyst development in other protists. | ||
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10.1111/j.1550-7408.2000.tb00071.x doi (DE-627)NLEJ243275994 DE-627 ger DE-627 rakwb LEADBEATER, BARRY S. C. verfasserin aut Cyst Formation in a Freshwater Strain of the Choanoflagellate Desmarella moniliformis Kent Oxford, UK Blackwell Publishing Ltd 2000 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier . Cyst formation in a freshwater strain of the colonial freshwater Choanoflagellate Desmarella moniliformis Kent (Protozoa; Choanoflagellida) has been studied with light and electron microscopy for the first time. Batch cultures inoculated with motile vegetative cells start to produce cysts within 3 days during the exponential phase of growth. Cyst production proceeds until in late stationary phase there is a preponderance of cysts. Transfer of cysts to fresh medium results in limited excystment. Encystment involves the production of electron-dense fibrillar wall material, firstly around the neck of the cell and then around the posterior end. As the wall material is deposited the neck of the cell elongates and the dictyosome rotates from the horizontal to vertical plane. The number of mitochondrial profiles seen in individual sections of cells increases. Finally the neck of the cell is retracted, the flagellum and collar tentacles are withdrawn, and the bottom of the neck of the cyst wall is sealed with a diaphragm of wall material. Excystment, which has not been observed directly, appears to involve the disruption of the wall at the base of the neck, the remainder of the cyst wall remains intact. Comparisons are made between encystment in Desmarella and cyst development in other protists. 2005 Blackwell Publishing Journal Backfiles 1879-2005 |2005|||||||||| Encystment KARPOV, SERGUEI A. verfasserin aut In The journal of eukaryotic microbiology Oxford [u.a.] : Wiley-Blackwell, 1954 47(2000), 5, Seite 0 Online-Ressource (DE-627)NLEJ243927622 (DE-600)2126326-7 1550-7408 nnns volume:47 year:2000 number:5 pages:0 http://dx.doi.org/10.1111/j.1550-7408.2000.tb00071.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 47 2000 5 0 |
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10.1111/j.1550-7408.2000.tb00071.x doi (DE-627)NLEJ243275994 DE-627 ger DE-627 rakwb LEADBEATER, BARRY S. C. verfasserin aut Cyst Formation in a Freshwater Strain of the Choanoflagellate Desmarella moniliformis Kent Oxford, UK Blackwell Publishing Ltd 2000 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier . Cyst formation in a freshwater strain of the colonial freshwater Choanoflagellate Desmarella moniliformis Kent (Protozoa; Choanoflagellida) has been studied with light and electron microscopy for the first time. Batch cultures inoculated with motile vegetative cells start to produce cysts within 3 days during the exponential phase of growth. Cyst production proceeds until in late stationary phase there is a preponderance of cysts. Transfer of cysts to fresh medium results in limited excystment. Encystment involves the production of electron-dense fibrillar wall material, firstly around the neck of the cell and then around the posterior end. As the wall material is deposited the neck of the cell elongates and the dictyosome rotates from the horizontal to vertical plane. The number of mitochondrial profiles seen in individual sections of cells increases. Finally the neck of the cell is retracted, the flagellum and collar tentacles are withdrawn, and the bottom of the neck of the cyst wall is sealed with a diaphragm of wall material. Excystment, which has not been observed directly, appears to involve the disruption of the wall at the base of the neck, the remainder of the cyst wall remains intact. Comparisons are made between encystment in Desmarella and cyst development in other protists. 2005 Blackwell Publishing Journal Backfiles 1879-2005 |2005|||||||||| Encystment KARPOV, SERGUEI A. verfasserin aut In The journal of eukaryotic microbiology Oxford [u.a.] : Wiley-Blackwell, 1954 47(2000), 5, Seite 0 Online-Ressource (DE-627)NLEJ243927622 (DE-600)2126326-7 1550-7408 nnns volume:47 year:2000 number:5 pages:0 http://dx.doi.org/10.1111/j.1550-7408.2000.tb00071.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 47 2000 5 0 |
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10.1111/j.1550-7408.2000.tb00071.x doi (DE-627)NLEJ243275994 DE-627 ger DE-627 rakwb LEADBEATER, BARRY S. C. verfasserin aut Cyst Formation in a Freshwater Strain of the Choanoflagellate Desmarella moniliformis Kent Oxford, UK Blackwell Publishing Ltd 2000 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier . Cyst formation in a freshwater strain of the colonial freshwater Choanoflagellate Desmarella moniliformis Kent (Protozoa; Choanoflagellida) has been studied with light and electron microscopy for the first time. Batch cultures inoculated with motile vegetative cells start to produce cysts within 3 days during the exponential phase of growth. Cyst production proceeds until in late stationary phase there is a preponderance of cysts. Transfer of cysts to fresh medium results in limited excystment. Encystment involves the production of electron-dense fibrillar wall material, firstly around the neck of the cell and then around the posterior end. As the wall material is deposited the neck of the cell elongates and the dictyosome rotates from the horizontal to vertical plane. The number of mitochondrial profiles seen in individual sections of cells increases. Finally the neck of the cell is retracted, the flagellum and collar tentacles are withdrawn, and the bottom of the neck of the cyst wall is sealed with a diaphragm of wall material. Excystment, which has not been observed directly, appears to involve the disruption of the wall at the base of the neck, the remainder of the cyst wall remains intact. Comparisons are made between encystment in Desmarella and cyst development in other protists. 2005 Blackwell Publishing Journal Backfiles 1879-2005 |2005|||||||||| Encystment KARPOV, SERGUEI A. verfasserin aut In The journal of eukaryotic microbiology Oxford [u.a.] : Wiley-Blackwell, 1954 47(2000), 5, Seite 0 Online-Ressource (DE-627)NLEJ243927622 (DE-600)2126326-7 1550-7408 nnns volume:47 year:2000 number:5 pages:0 http://dx.doi.org/10.1111/j.1550-7408.2000.tb00071.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 47 2000 5 0 |
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10.1111/j.1550-7408.2000.tb00071.x doi (DE-627)NLEJ243275994 DE-627 ger DE-627 rakwb LEADBEATER, BARRY S. C. verfasserin aut Cyst Formation in a Freshwater Strain of the Choanoflagellate Desmarella moniliformis Kent Oxford, UK Blackwell Publishing Ltd 2000 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier . Cyst formation in a freshwater strain of the colonial freshwater Choanoflagellate Desmarella moniliformis Kent (Protozoa; Choanoflagellida) has been studied with light and electron microscopy for the first time. Batch cultures inoculated with motile vegetative cells start to produce cysts within 3 days during the exponential phase of growth. Cyst production proceeds until in late stationary phase there is a preponderance of cysts. Transfer of cysts to fresh medium results in limited excystment. Encystment involves the production of electron-dense fibrillar wall material, firstly around the neck of the cell and then around the posterior end. As the wall material is deposited the neck of the cell elongates and the dictyosome rotates from the horizontal to vertical plane. The number of mitochondrial profiles seen in individual sections of cells increases. Finally the neck of the cell is retracted, the flagellum and collar tentacles are withdrawn, and the bottom of the neck of the cyst wall is sealed with a diaphragm of wall material. Excystment, which has not been observed directly, appears to involve the disruption of the wall at the base of the neck, the remainder of the cyst wall remains intact. Comparisons are made between encystment in Desmarella and cyst development in other protists. 2005 Blackwell Publishing Journal Backfiles 1879-2005 |2005|||||||||| Encystment KARPOV, SERGUEI A. verfasserin aut In The journal of eukaryotic microbiology Oxford [u.a.] : Wiley-Blackwell, 1954 47(2000), 5, Seite 0 Online-Ressource (DE-627)NLEJ243927622 (DE-600)2126326-7 1550-7408 nnns volume:47 year:2000 number:5 pages:0 http://dx.doi.org/10.1111/j.1550-7408.2000.tb00071.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 47 2000 5 0 |
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10.1111/j.1550-7408.2000.tb00071.x doi (DE-627)NLEJ243275994 DE-627 ger DE-627 rakwb LEADBEATER, BARRY S. C. verfasserin aut Cyst Formation in a Freshwater Strain of the Choanoflagellate Desmarella moniliformis Kent Oxford, UK Blackwell Publishing Ltd 2000 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier . Cyst formation in a freshwater strain of the colonial freshwater Choanoflagellate Desmarella moniliformis Kent (Protozoa; Choanoflagellida) has been studied with light and electron microscopy for the first time. Batch cultures inoculated with motile vegetative cells start to produce cysts within 3 days during the exponential phase of growth. Cyst production proceeds until in late stationary phase there is a preponderance of cysts. Transfer of cysts to fresh medium results in limited excystment. Encystment involves the production of electron-dense fibrillar wall material, firstly around the neck of the cell and then around the posterior end. As the wall material is deposited the neck of the cell elongates and the dictyosome rotates from the horizontal to vertical plane. The number of mitochondrial profiles seen in individual sections of cells increases. Finally the neck of the cell is retracted, the flagellum and collar tentacles are withdrawn, and the bottom of the neck of the cyst wall is sealed with a diaphragm of wall material. Excystment, which has not been observed directly, appears to involve the disruption of the wall at the base of the neck, the remainder of the cyst wall remains intact. Comparisons are made between encystment in Desmarella and cyst development in other protists. 2005 Blackwell Publishing Journal Backfiles 1879-2005 |2005|||||||||| Encystment KARPOV, SERGUEI A. verfasserin aut In The journal of eukaryotic microbiology Oxford [u.a.] : Wiley-Blackwell, 1954 47(2000), 5, Seite 0 Online-Ressource (DE-627)NLEJ243927622 (DE-600)2126326-7 1550-7408 nnns volume:47 year:2000 number:5 pages:0 http://dx.doi.org/10.1111/j.1550-7408.2000.tb00071.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 47 2000 5 0 |
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Cyst Formation in a Freshwater Strain of the Choanoflagellate Desmarella moniliformis Kent |
| abstract |
. Cyst formation in a freshwater strain of the colonial freshwater Choanoflagellate Desmarella moniliformis Kent (Protozoa; Choanoflagellida) has been studied with light and electron microscopy for the first time. Batch cultures inoculated with motile vegetative cells start to produce cysts within 3 days during the exponential phase of growth. Cyst production proceeds until in late stationary phase there is a preponderance of cysts. Transfer of cysts to fresh medium results in limited excystment. Encystment involves the production of electron-dense fibrillar wall material, firstly around the neck of the cell and then around the posterior end. As the wall material is deposited the neck of the cell elongates and the dictyosome rotates from the horizontal to vertical plane. The number of mitochondrial profiles seen in individual sections of cells increases. Finally the neck of the cell is retracted, the flagellum and collar tentacles are withdrawn, and the bottom of the neck of the cyst wall is sealed with a diaphragm of wall material. Excystment, which has not been observed directly, appears to involve the disruption of the wall at the base of the neck, the remainder of the cyst wall remains intact. Comparisons are made between encystment in Desmarella and cyst development in other protists. |
| abstractGer |
. Cyst formation in a freshwater strain of the colonial freshwater Choanoflagellate Desmarella moniliformis Kent (Protozoa; Choanoflagellida) has been studied with light and electron microscopy for the first time. Batch cultures inoculated with motile vegetative cells start to produce cysts within 3 days during the exponential phase of growth. Cyst production proceeds until in late stationary phase there is a preponderance of cysts. Transfer of cysts to fresh medium results in limited excystment. Encystment involves the production of electron-dense fibrillar wall material, firstly around the neck of the cell and then around the posterior end. As the wall material is deposited the neck of the cell elongates and the dictyosome rotates from the horizontal to vertical plane. The number of mitochondrial profiles seen in individual sections of cells increases. Finally the neck of the cell is retracted, the flagellum and collar tentacles are withdrawn, and the bottom of the neck of the cyst wall is sealed with a diaphragm of wall material. Excystment, which has not been observed directly, appears to involve the disruption of the wall at the base of the neck, the remainder of the cyst wall remains intact. Comparisons are made between encystment in Desmarella and cyst development in other protists. |
| abstract_unstemmed |
. Cyst formation in a freshwater strain of the colonial freshwater Choanoflagellate Desmarella moniliformis Kent (Protozoa; Choanoflagellida) has been studied with light and electron microscopy for the first time. Batch cultures inoculated with motile vegetative cells start to produce cysts within 3 days during the exponential phase of growth. Cyst production proceeds until in late stationary phase there is a preponderance of cysts. Transfer of cysts to fresh medium results in limited excystment. Encystment involves the production of electron-dense fibrillar wall material, firstly around the neck of the cell and then around the posterior end. As the wall material is deposited the neck of the cell elongates and the dictyosome rotates from the horizontal to vertical plane. The number of mitochondrial profiles seen in individual sections of cells increases. Finally the neck of the cell is retracted, the flagellum and collar tentacles are withdrawn, and the bottom of the neck of the cyst wall is sealed with a diaphragm of wall material. Excystment, which has not been observed directly, appears to involve the disruption of the wall at the base of the neck, the remainder of the cyst wall remains intact. Comparisons are made between encystment in Desmarella and cyst development in other protists. |
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Cyst Formation in a Freshwater Strain of the Choanoflagellate Desmarella moniliformis Kent |
| url |
http://dx.doi.org/10.1111/j.1550-7408.2000.tb00071.x |
| remote_bool |
true |
| author2 |
KARPOV, SERGUEI A. |
| author2Str |
KARPOV, SERGUEI A. |
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NLEJ243927622 |
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z |
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| doi_str |
10.1111/j.1550-7408.2000.tb00071.x |
| up_date |
2024-07-06T04:55:21.675Z |
| _version_ |
1803804183547084800 |
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C.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Cyst Formation in a Freshwater Strain of the Choanoflagellate Desmarella moniliformis Kent</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="a">Oxford, UK</subfield><subfield code="b">Blackwell Publishing Ltd</subfield><subfield code="c">2000</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zzz</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">z</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zu</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">. Cyst formation in a freshwater strain of the colonial freshwater Choanoflagellate Desmarella moniliformis Kent (Protozoa; Choanoflagellida) has been studied with light and electron microscopy for the first time. Batch cultures inoculated with motile vegetative cells start to produce cysts within 3 days during the exponential phase of growth. Cyst production proceeds until in late stationary phase there is a preponderance of cysts. Transfer of cysts to fresh medium results in limited excystment. Encystment involves the production of electron-dense fibrillar wall material, firstly around the neck of the cell and then around the posterior end. As the wall material is deposited the neck of the cell elongates and the dictyosome rotates from the horizontal to vertical plane. The number of mitochondrial profiles seen in individual sections of cells increases. Finally the neck of the cell is retracted, the flagellum and collar tentacles are withdrawn, and the bottom of the neck of the cyst wall is sealed with a diaphragm of wall material. Excystment, which has not been observed directly, appears to involve the disruption of the wall at the base of the neck, the remainder of the cyst wall remains intact. 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|
| score |
7.401473 |