| 释义 |
myxamœba|mɪksəˈmiːbə|
Also myxo-amœba. Pl. -æ.
[f. myxo- + amœba.]
In a slime mould of the division Myxomycota, a cell lacking flagella but capable of amœboid movement. So myxaˈmœboid a.
1875Bennett & Dyer tr. Sachs' Bot. 10 In the Myxomycetes the swarm-spores (Myxo-amœbæ)..coalesce gradually in great numbers. 1887H. E. F. Garnsey tr. A. de Bary's Compar. Morphol. & Biol. Fungi viii. 423 Swarm-cells with purely amoeboid motion have been unnecessarily distinguished by the name of myxamoebae. 1888Rolleston & Jackson Anim. Life 908 Myxamœba. 1927Gwynne-Vaughan & Barnes Structure & Development of Fungi 45 In early stages of development they [sc. Myxomycetes] appear as small, naked uninucleate amoebae, the myxamoebae. Ibid., Eventually multiplication ceases, the zoospores resume the myxamoeboid form and fuse in pairs. 1947F. A. & F. T. Wolf Fungi I. iv. 40 In moist weather the spore walls open to emit swarm cells (myxamoebae), which ingest bacteria and fungus spores, assimilate them, and grow to become a large, multinucleate, naked mass of protoplasm (plasmodium). 1968H. Harris Nucleus & Cytoplasm vi. 118 The experiments..demonstrate the failure of high concentrations of actinomycin D to inhibit decisive events in the differentiation of colonial myxamoebae. 1971P. H. B. Talbot Princ. Fungal Taxonomy viii. 100 A myxamoeba may put out flagella and become a swarmer, or a swarmer may retract its flagella and become a myxamoeba. |