mitosomen.

Brit.

/ˈmʌɪtə(ʊ)səʊm/, U.S.

/ˈmaɪdəˌsoʊm/

Origin: A borrowing from German. Etymon: German Mitosoma.

Etymology: < German Mitosoma (G. Platner 1889, in Arch. f. mikrosk. Anat. 33 199) < mito- (see mito- comb. form) + -soma (see -some comb. form). Compare French mitosome (1897).The form mitosoma is recorded earlier in English:1891 Jrnl. Royal Microsc. Soc. 461 The portion of the mitosoma which becomes attached to the nucleus becomes chromatic and wanders to the anterior end of the spermatozoon.

Cell Biology.

An area of a cell in which mitochondria are aggregated (now rare, perhaps obsolete); (later) an organelle in the cytoplasm of certain protozoans that corresponds to a mitochondrion. Also: †a cytoplasmic structure formed by the remains of the mitotic spindle (obsolete). Cf. nebenkern n.

ΘΚΠ

the world > life > biology > biological processes > genetic activity > genetic components > [noun] > chromosome > spindle or spindle fibre

spindle1878

spindle fibre1878

mitosome1895

mantle fibre1896

monaster1901

cleavage-spindle1912

telomere1940

1895 Jrnl. Morphol. 11 237 Since the middle piece or ‘Nebenkern’ of the echinoderm spermatozoön is formed from the mitotic spindle, the term ‘mitosome’, introduced by Platner, has been adopted and will be used to designate the middle piece, = Nebenkern = corpuscle accessoire of other writers.

1905 Bull. Torrey Bot. Club 33 256 These cells contained in their basal portions a ball of thread-like fibers which is termed pancreatic mitosome, or ‘Nebenkern’.

1920 L. Doncaster Introd. Study Cytol. vii. 95 (note) This mitochondrial mass (‘mitosome’) constitutes the ‘Nebenkern’ of some authors, but as the word has been used to designate the remains of the division-spindle.., the ‘idiozome’..and other cell-structures, it is now dropping out of use.

1925 E. B. Wilson Cell (ed. 3) iv. 366 One of these [formed elements] is the spindle-remnant, sometimes called the ‘mitosome’.

1934 L. W. Sharp Introd. Cytol. (ed. 3) xiv. 218 In insects generally the chondriosomes form a single more or less compact body, the nebenkern (the mitosome of Gatenby).

1999 Molecular Microbiol. 32 1013 We have localized native E[ntamoeba] histolytica CPN60 to a previously undescribed organelle of putative mitochondrial origin, the mitosome.

2000 Current Opinion Microbiol. 3 404 It is becoming increasingly evident that all eukaryotes characterized to date bear some mitochondrial trait, whether it be a ‘real’ mitochondrion, a hydrogenosome, a mitosome or a few genes left behind from secondary losses of organelles.

This entry has been updated (OED Third Edition, June 2002; most recently modified version published online March 2022).

单词	mitosome
释义	mitosomen. Brit. /ˈmʌɪtə(ʊ)səʊm/, U.S. /ˈmaɪdəˌsoʊm/ Origin: A borrowing from German. Etymon: German Mitosoma. Etymology: < German Mitosoma (G. Platner 1889, in Arch. f. mikrosk. Anat. 33 199) < mito- (see mito- comb. form) + -soma (see -some comb. form). Compare French mitosome (1897).The form mitosoma is recorded earlier in English:1891 Jrnl. Royal Microsc. Soc. 461 The portion of the mitosoma which becomes attached to the nucleus becomes chromatic and wanders to the anterior end of the spermatozoon. Cell Biology. An area of a cell in which mitochondria are aggregated (now rare, perhaps obsolete); (later) an organelle in the cytoplasm of certain protozoans that corresponds to a mitochondrion. Also: †a cytoplasmic structure formed by the remains of the mitotic spindle (obsolete). Cf. nebenkern n. ΘΚΠ the world > life > biology > biological processes > genetic activity > genetic components > [noun] > chromosome > spindle or spindle fibre spindle1878 spindle fibre1878 mitosome1895 mantle fibre1896 monaster1901 cleavage-spindle1912 telomere1940 1895 Jrnl. Morphol. 11 237 Since the middle piece or ‘Nebenkern’ of the echinoderm spermatozoön is formed from the mitotic spindle, the term ‘mitosome’, introduced by Platner, has been adopted and will be used to designate the middle piece, = Nebenkern = corpuscle accessoire of other writers. 1905 Bull. Torrey Bot. Club 33 256 These cells contained in their basal portions a ball of thread-like fibers which is termed pancreatic mitosome, or ‘Nebenkern’. 1920 L. Doncaster Introd. Study Cytol. vii. 95 (note) This mitochondrial mass (‘mitosome’) constitutes the ‘Nebenkern’ of some authors, but as the word has been used to designate the remains of the division-spindle.., the ‘idiozome’..and other cell-structures, it is now dropping out of use. 1925 E. B. Wilson Cell (ed. 3) iv. 366 One of these [formed elements] is the spindle-remnant, sometimes called the ‘mitosome’. 1934 L. W. Sharp Introd. Cytol. (ed. 3) xiv. 218 In insects generally the chondriosomes form a single more or less compact body, the nebenkern (the mitosome of Gatenby). 1999 Molecular Microbiol. 32 1013 We have localized native E[ntamoeba] histolytica CPN60 to a previously undescribed organelle of putative mitochondrial origin, the mitosome. 2000 Current Opinion Microbiol. 3 404 It is becoming increasingly evident that all eukaryotes characterized to date bear some mitochondrial trait, whether it be a ‘real’ mitochondrion, a hydrogenosome, a mitosome or a few genes left behind from secondary losses of organelles. This entry has been updated (OED Third Edition, June 2002; most recently modified version published online March 2022). < n.1895
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