Ecological implications of correlative inhibition between plant shoots
Ecological implications of correlative inhibition between plant shoots
复制标题
植物芽之间相关抑制的生态学意义
DOI：
10.1111/j.1399-3054.1989.tb05989.x
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发表时间：
1989
影响因子：
6.4
通讯作者：
T. Sachs
中科院分区：
文献类型：
--
作者：
A. Novoplansky;Daniel Cohen;T. Sachs
豌豆属植物。阿文斯·波尔。CV。Dun在不同的光照条件下，保持两个相等的枝条生长。在这些植物中，变暗的枝条受到抑制，最终枯萎死亡；只有在强光下的枝条被移除时，枝条才会伸长并变黄。在模拟的生态条件下，当弱光下的嫩枝只被遮蔽时，也得到了类似的结果：虽然它确实存活了，但受到了严重的抑制。当植物受到去除大部分子叶储备的胁迫时，遮荫枝条的抑制作用更加明显。这些结果表明，对光环境的反应与同一植物的地上部之间的相关抑制是相结合的。这种整合使植物能够在不同的环境中最佳地利用其发展资源，而不仅仅是在条件合适的地方种植。
Plants of Pisum sativum var. arvense Poir. cv. Dun were grown with two equal shoots kept in different light conditions. In these plants a darkened shoot was inhibited and it eventually withered and died; it elongated and became etiolated only when the shoot in the stronger light was removed. A similar result was obtained in simulated ecological conditions, when the shoot in the inferior light was merely shaded: this shoot was severely inhibited, though it did survive. The inhibition of the shaded shoot was more pronounced when the plants were stressed by the removal of large parts of their cotyledonary reserves. These results demonstrate an integration of responses to the light environment with the correlative inhibition between shoots of the same plant. This integration enables the plant to use its developmental resources optimally in heterogeneous environments, rather than merely growing where conditions are ‘appropriate’.