The Role of the Cotyledons in Gibberellin‐ and Auxin‐Induced Elongation of the Cucumber Hypocotyl
The Role of the Cotyledons in Gibberellin‐ and Auxin‐Induced Elongation of the Cucumber Hypocotyl
复制标题
子叶在赤霉素和生长素诱导的黄瓜下胚轴伸长中的作用
DOI：
10.1111/j.1399-3054.1965.tb06916.x
复制
发表时间：
1965
影响因子：
6.4
通讯作者：
J. Kato
中科院分区：
文献类型：
--
作者：
M. Katsumi;W. K. Purves;B. Phinney;J. Kato
五种生长素对有子叶和无子叶黄瓜下胚轴的伸长均有促进作用。在子叶存在的情况下，赤霉素引起黄瓜下胚轴的显著伸长，而在没有子叶的情况下，这种促进作用很小。赤霉素反应的大小与子叶的数量直接相关。有人认为，子叶提供的一个因素是必要的赤霉素的生长反应，但不是生长素的生长反应。现有的证据表明，假设的因素不是生长素。
Five auxins promoted elongation of cucumber hypocotyls either with or without cotyledons. While gibberellin caused marked elongation of cucumber hypocotyls in the presence of the cotyledons, the promotion was only slight in their absence. The magnitude of the gibberellin response was directly related to the amount of cotyledon present. It is argued that a factor supplied by the cotyledons is necessary for the gibbereilin growth response, but not the auxin growth response. Available evidence suggests that the hypothetical factor is not auxin.