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schizogony

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Journal Article
Published: 01 January 1999
Journal of Foraminiferal Research (1999) 29 (1): 75-84.
... on the formation of reproductive cysts and the nearly total decalcification of the parental test during schizogony. These studies also follow the ontogenic development of the test in individuals produced by schizogony. Irregularities during development of the early stages lead to adults with characteristic...
Journal Article
Published: 01 July 1992
Micropaleontology (1992) 38 (3): 313-314.
Journal Article
Published: 01 April 1970
Micropaleontology (1970) 16 (2): 227-232.
Journal Article
Published: 01 October 2006
Journal of Foraminiferal Research (2006) 36 (4): 279-290.
... of the supposed gamonts from 36.5–41.7 μm. The proportions of the three generations are used to infer long-term life cycles in time-averaged assemblages. Samples from Bottsand (Kiel Bight, Germany) contain particularly high proportions of schizonts, indicating that schizogony may be the dominant or sole mode...
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Image
Hypothetical life cycle of  Trochammina inflata . The upper part depicts th...
Published: 01 October 2006
) with its offspring produced by multiple fission. The lower part represents the megalospheric schizont (A1) reproducing by cyclic schizogony inserted between agamont and gamont, according to the hypothesis of trimorphism. M: meiosis. Test size of gamont 474 μm, prolocular size of gamont 35 μm, test size
Journal Article
Published: 01 July 2014
Journal of Foraminiferal Research (2014) 44 (3): 316-324.
... schizogony. Tests having two or more embryonic apparatuses are called polyvalent individuals ( Le Calvez, 1934 , 1938 ; Hottinger, 2006 ), irrespective of whether the test is normal or irregular. Juveniles released from the mother test in schizogony usually have two or three chambers. The juveniles may...
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Journal Article
Published: 01 January 2009
Journal of Foraminiferal Research (2009) 39 (1): 8-14.
... of juveniles detected in our parental specimen thus argues in favor of schizogony as a potential reproductive mode. According to Lehmann and others (2006) , schizogony may be the dominant mode of reproduction at some sites, at least in Trochammina inflata , and might explain the high densities of schizonts...
FIGURES
Journal Article
Published: 01 January 2006
Journal of Foraminiferal Research (2006) 36 (1): 77-89.
...) After schizogony, new reproductive nuclei were formed by means of multiple fission, possibly by spherical cytoplasmic areas that might have been externally calcified (protoconch). They were released through the cuniculi of the microspheric B-generation (agamont). (2) The growth of the reproductive...
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Journal Article
Published: 01 July 2009
Journal of Foraminiferal Research (2009) 39 (3): 155-165.
... juvenile). Scale bars are 100 μm. Only asexual reproduction or schizogony (multiple fission) was observed. A single parent was in the reproduction cyst and, after cytoplasmic division, the empty adult test separated from the cyst but remained among the offspring, which created their own cysts...
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Journal Article
Published: 20 April 2018
Journal of Foraminiferal Research (2018) 48 (2): 156-163.
..., 1976 ), where the size of reproducing specimens ranged from 120–230 µm. Reproduction by schizogony has been reported by Angell (1990) for Trochammina inflata collected from the Great Barrier Reef, while a biphasic life cycle with microspheric and megalospheric generations was described...
FIGURES
Journal Article
Published: 01 October 2008
Journal of Foraminiferal Research (2008) 38 (4): 318-336.
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Series: Geological Society, London, Special Publications
Published: 01 January 2001
DOI: 10.1144/GSL.SP.2001.187.01.19
EISBN: 9781862394353
... sinistral in the western tropical Pacific and dextral progressively eastward to Hawaii. Those workers found that, during asexual reproduction (schizogony), both dextrally and sinistrally coiled parent individuals produced young that were coiled both dextrally and sinistrally within a single clone...
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Journal Article
Published: 01 July 2012
Journal of Micropalaeontology (2012) 31 (2): 121-129.
... by schizogony (repeated asexual reproduction) in the spring and summer and that there is an increase in the number of nuclei in the parent from autumn to spring. The maximum number of nuclei was 116 in an individual collected in March. She reported on two broods of megalospheric forms born in Petri dish...
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Journal Article
Published: 01 January 2003
Journal of Foraminiferal Research (2003) 33 (1): 1-9.
... , V. , Lesourd , M. , and Debenay , J.-P. , 1999b , Laboratory observations on asexual reproduction (schizogony) and ontogeny of Ammonia tepida with comments on the life cycle : Journal of Foraminiferal Research , v. 29 , p. 75 – 84 . Stubbles , S.J. , Green , J.C...
FIGURES
Journal Article
Published: 11 January 2019
Journal of Foraminiferal Research (2019) 49 (1): 76-93.
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Journal Article
Journal: Paleobiology
Published: 13 July 2018
Paleobiology (2018) 44 (3): 460-489.
... whorl; (ii) the early fusion of two juveniles, which both develop after their fusion; (iii) the attachment of a juvenile to a parental test after schizogony, followed by the development of the juvenile specimen. According to Montgomery ( 1990 ), twinned specimens indicate reproductive difficulties...
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Journal Article
Published: 01 July 2002
Journal of Foraminiferal Research (2002) 32 (3): 201-216.
... schizogony ( Kuwano, 1956 ). This variant is not present at Green Island Reef. However some variants of B. sphaerulata from Green Island Reef differ from the typical morphotype in being smaller in size and more elliptical in shape with up to eighteen short channeled spines, many of which are not restricted...
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Journal Article
Published: 01 October 2006
Journal of Sedimentary Research (2006) 76 (10): 1137-1161.
... sunlight, and/or test damage in turbulent water (e.g., Larsen 1976 ; ter Kuile and Erez 1984; Hallock and Glenn 1986 ). A-form-dominated LBF communities can be the result of apogamic schizogony (repetitive asexual reproduction resulting in successive generations of megalospheric schizonts, e.g...
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