| 词汇 | heliotropism |
| 语种 | 英语、汉语、英汉翻译、汉英翻译 |
| 释义 | heliotropism noun[ U ] biology specializeduk /ˌhiː.liˈɒt.trə.pɪ.zəm/ us /ˈhiː.li.ə.troʊ.pɪ.zəm/ the growth or movement of a plant, or of a particular part of a plant, towards the sun or away from it: 向日性 Sunflowers in the bud stage exhibit heliotropism.含苞待放的向日葵表现出向日性。 Heliotropism is like a plant sense; the way that a plant senses the sun and grows toward it. Geotropism and heliotropism cause roots to strike into the earth and leaves to turn to the light. He has performed experiments in heliotropism, clearly establishing the power of light in lower forms of organisms. Where a plant exhibits positive heliotropism, the part away from the light attains a greater length than that towards it. Biochemistry adipose adrenalin albumin aldosterone amino acid endonuclease endorphin enzymatic enzymatically enzyme mRNA mycoprotein non-enzymatic nuclease nucleic acid spike protein T level testosterone trace element transfer RNA Comparegeotropism |
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