| 单词 | gas vacuole |
| 释义 | > as lemmasgas vacuole gas vacuole n. Botany a gas-containing vacuole found in certain bacteria and blue-green algae, thought to be involved in regulating buoyancy in water. ΚΠ 1881–2 W. Saville-Kent Man. Infusoria II. 811 Contractile vesicles minute, variable in number, supplemented by a large non-contractile gas-vacuole, having a diameter of one-half that of the body. 1904 New Phytologist 3 108 There are two kinds of vacuoles; cell-sap vacuoles and gas vacuoles... The latter are found only in certain forms which float on the water surface. 2002 Paleobiology 28 152/1 After their death, planktonic cyanobacteria tend to sink to the bottom, following gas vacuole decay. < as lemmas |
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