英语词汇“hyponasty”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

　

单词	hyponasty
释义	hyponasty hy·po·nas·ty H0367900 (hī′pə-năs′tē)n. The upward bending of a leaf or other plant part, resulting from greater growth of the lower side than of the upper side. hy′po·nas′tic adj. hyponasty (ˈhaɪpəˌnæstɪ) n (Botany) increased growth of the lower surface of a plant part, resulting in an upward bending of the part. Compare epinasty ˌhypoˈnastic adj ˌhypoˈnastically adv hy•po•nas•ty (ˈhaɪ pəˌnæs ti) n. increased growth along the lower surface of a plant or plant part, causing it to bend upward. [1870–75] hy`po•nas′tic, adj. hy`po•nas′ti•cal•ly, adv. hyponasty an increase in growth in a lower part of a plant causing it to bend upward. — hyponastic, adj.See also: Plants Hyponasty hyponasty [′hī·pə‚nas·tē] (botany) A nastic movement involving inward and upward bending of a plant part. Hyponasty more rapid growth of the lower side of leaves, petals, sepals, and other organs of plants in comparison with the upper side. As a result of hyponasty, a given plant organ bends upward. Hyponasty may be conditioned by the age of the organ. For example, young flower buds remain tightly closed because of hyponasty. This phenomenon is superseded by epinasty—that is, more rapid growth of the upper side of the sepals and petals, as a result of which the flower opens. Hyponasty may also be caused by changes in environmental conditions. For example, during overcast, wet, or cold weather hyponasty of the perianths sometimes occurs, and the flowers close. hyponasty hyponasty the more rapid growth of the lower side of an organ, compared with the upper side, that results in curving.
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更新时间：2024/11/12 10:40:02