单词 | aerotropism |
释义 | > as lemmasaerotropism aerotropism n. Brit. /ɛːˈrɒtrəpɪz(ə)m/ , U.S. /ɛˈrɑtrəˌpɪz(ə)m/ [ < aero- comb. form + -tropism comb. form, after German Aërotropismus (H. Molisch 1885, in Wiener Akad. Sitzungsberichte 90 i. 137)] Botany the property of bending or turning towards a source of air, exhibited esp. by the growing roots of plants.ΘΚΠ the world > plants > part of plant > growth, movement, or curvature of parts > [noun] > tropisms heliotropism1854 geotropism1873 apheliotropism1880 apogeotropism1880 nyctitropism1880 paraheliotropism1881 hydrotropism1882 selenotropism1883 selenotropy1883 rheotropism1884 orthotropism1885 plagiotropism1886 geotropy1888 haptotropism1888 aerotropism1889 phototropy1892 autotropism1897 plagiotropy1898 thermotropism1898 traumatropism1898 phototropism1899 gravitropism1969 1889 Cent. Dict. Aërotropism, in bot., deviation of roots from their normal direction by the action of gases. 1919 F. O. Bower Bot. Living Plant viii. 128 The roots [of pot-bound plants] grow towards a source of free oxygen... Such a response is styled aerotropism, and roots curving towards the source are positively aerotropic. 1947 A. Howard Soil & Health xiii. 151 The roots showed well defined aerotropism and..grew on the surface under the fallen potato leaves. 2007 J. D. van Elsas et al. Mod. Soil Microbiol. (ed. 2) vii. 195 Morphogenesis of mycelia is also highly regulated, with directional hyphal growth away from the center of the colony, possibly by positive aerotropism. < as lemmas |
随便看 |
|
英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。