VISUALIZATION OF CHLOROPLAST 3 DIMENSIONAL ARCHITECTURE BY SEM

我们正在研究叶绿体的结构。 光合作用 包含两个组成部分“光反应”和“暗“反应。 的 光反应发生在三维膜网络（类胸腺素）上， 叶绿体和涉及线性电子传递通过几个 蛋白质复合物，最显著的是光系统II（PSH）和I（PSI）。 这两种蛋白质复合物存在于细胞膜的不同区域。 类囊体 因此，电子必须在移动的上穿梭， 可扩散电子载体质体花青酮（PQ）和质体花青蛋白 （PC）。 PC和PQ的扩散速率是已知的，但不是平均值 扩散距离，因为类囊体的3-D结构是未知的。 没有平均扩散距离的值，理论家们 他们渴望用数学模型模拟光合作用， 电子转移速率 SEM图像将用于推导以下值： 两个光系统之间的平均扩散距离， 将被用来测试理论模型。

We are studying the architecture of chloroplasts. Photosynthesis contains two components "light reactions and "dark " reactions. The light reactions occur on a 3-D membrane network (thykaloids) in chloroplasts and involve linear electron transport through several protein complexes, most notably photosystems II (PSH) and I (PSI). These two protein complexes are found in distinct regions of the thylakoid. Therefore, electrons must be shuttled on mobile, diffusible electron carriers plastouinonone (PQ) and plasotcyanin (PC). The diffusion rates of PC and PQ are known but not the average diffasional distance because the thykaloid 3-D structure is unknown. Without a value for average diffusional distance, theorists are stymied in their desire to mathematically model photosynthetic electron transfer rates. SEM images will be used to derive values for the average diffusional distance between the two photosystems that will then be used to test theoretical models.