Phototactic motility in the unicellular cyanobacterium Synechocystis sp. PCC 6803
Phototactic motility in the unicellular cyanobacterium Synechocystis sp. PCC 6803
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DOI：
10.1039/b402320j
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发表时间：
2004-05
影响因子：
3.1
通讯作者：
Shizue Yoshihara;M. Ikeuchi
中科院分区：
文献类型：
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作者：
Shizue Yoshihara;M. Ikeuchi
Synechocystis sp. PCC 6803是一种单细胞活动蓝藻，在侧向光照下在琼脂板上表现出正、负趋光性。近年来对聚囊藻趋光性分子机制的研究表明，许多基因与聚囊藻的菌依赖趋光性和趋光性有关。在这里，我们描述了关于这些基因的已知信息。我们还讨论了聚囊藻中光敏色素样光感受器PixJ1的新光谱特性，这对正趋光性至关重要，并揭示了蓝藻中存在一组新的发色团结合蛋白。
Synechocystis sp. PCC 6803 is a unicellular motile cyanobacterium that shows positive and negative phototaxis on agar plates under lateral illumination. Recent studies on the molecular mechanisms of the phototactic motility of Synechocystis have revealed that a number of genes are responsible for its pilus-dependent motility and phototaxis. Here we describe what is known about these genes. We also discuss the novel spectral properties of the phytochrome-like photoreceptor PixJ1 in Synechocystis , that is essential for positive phototaxis and which has revealed the existence of a new group of chromophore-binding proteins in cyanobacteria.