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单词 myxamoeba
释义

myxamoeban.

Brit. /ˌmɪksəˈmiːbə/, U.S. /ˌmɪksəˈmibə/
Forms: Plural 1800s– myxamoebae, 1800s– myxoamoebae, 1900s– myxamebae, 1900s– myxamebas, 1900s– myxamoebas.
Origin: Formed within English, by compounding; modelled on a German lexical item. Etymons: myxo- comb. form, amoeba n.
Etymology: < myxo- comb. form + amoeba n., after German Myxoamoebe (L. Crenkowski 1863, in Jahrbücher f. wissensch. Bot. 3 326).
Biology.
In slime moulds: a motile feeding cell lacking flagella but capable of amoeboid movement. Cf. myxoflagellate n.
ΘΚΠ
the world > life > biology > substance > cell > types of cells > [noun] > motile or amoebic cell
myxamoeba1875
immigrant1885
microcyst1887
amœbocyte1892
wandering cells1896
streptocyte1897
swarmer cell1950
swarmer1964
1875 A. W. Bennett & W. T. T. Dyer tr. J. von Sachs Text-bk. Bot. 10 In the Myxomycetes the swarm-spores (Myxo-amœbæ [Ger. Myxoamöben])..coalesce gradually in great numbers.
1887 H. E. F. Garnsey & I. B. Balfour tr. H. A. de Bary Compar. Morphol. & Biol. Fungi viii. 423 Swarm-cells with purely amoeboid motion have been unnecessarily distinguished by the name of myxamoebae.
1927 H. Gwynne-Vaughan & B. F. Barnes Struct. & Devel. Fungi 45 In early stages of development they [sc. Myxomycetes] appear as small, naked uninucleate amoebae, the myxamoebae.
1956 Science 29 June 1172/1 The myxamebas depend on a gradient in order to know in which direction to move.
1971 P. H. B. Talbot Princ. Fungal Taxon. viii. 100 A myxamoeba may put out flagella and become a swarmer, or a swarmer may retract its flagella and become a myxamoeba.
1994 New Phytologist 126 176/1 Myxamoebae may also act as gametes, fusing in pairs to give diploid zygotes.
This entry has been updated (OED Third Edition, June 2003; most recently modified version published online March 2022).
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n.1875
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