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首页> 外文期刊>Journal of Theoretical Biology >Models for gibberellic acid transport and enzyme production and transport in the aleurone layer of barley.
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Models for gibberellic acid transport and enzyme production and transport in the aleurone layer of barley.

机译：大麦糊粉层中赤霉素酸运输，酶产生和运输的模型。

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摘要

Gibberellins are growth hormones produced in the embryo of grain released during germination. They promote growth through the production of enzymes in the aleurone layer surrounding the endosperm. These enzymes then diffuse into the endosperm and produce the sugars required by the growing acrospire. Here we model the transport of gibberellins into and along the aleurone layer, the consequent production of enzymes, and their transport into the endosperm. Simple approximate solutions of the governing equations are obtained which suggest that the enzymes are released immediately behind a gibberellin front which travels with almost constant speed along the aleurone layer. The model also suggests that this propagation speed is determined primarily by conditions near the scutellum-aleurone junction, which may enable the embryo to actively control the germination process.
机译：赤霉素是发芽过程中释放出的谷物胚中产生的生长激素。它们通过在胚乳周围的糊粉层中产生酶来促进生长。这些酶然后扩散到胚乳中，并产生不断增长的杂草所需的糖。在这里，我们模拟赤霉素进入糊粉层并沿着糊粉层的运输，随后产生的酶及其在胚乳中的运输。获得了控制方程的简单近似解，表明该酶立即在赤霉素前沿后面释放，赤霉素前沿以糊粉糊层几乎恒定的速度传播。该模型还表明，这种繁殖速度主要取决于盾片-神经元连接点附近的条件，这可能使胚胎能够主动控制发芽过程。

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