Decker E L, Frank W, Sarnighausen E, Reski R
Faculty of Biology, Plant Biotechnology, University of Freiburg, Schänzlestrasse 1, 79104 Freiburg, Germany.
Plant Biol (Stuttg). 2006 May;8(3):397-405. doi: 10.1055/s-2006-923952.
The moss Physcomitrella patens has become a powerful model system in modern plant biology. Highly standardized cell culture techniques, as well as the necessary tools for computational biology, functional genomics and proteomics have been established. Large EST collections are available and the complete moss genome will be released soon. A simple body plan and the small number of different cell types in Physcomitrella facilitate the study of developmental processes. In the filamentous juvenile moss tissue, developmental decisions rely on the differentiation of single cells. Developmental steps are controlled by distinct phytohormones and integration of environmental signals. Especially the phytohormones auxin, cytokinin, and abscisic acid have distinct effects on early moss development. In this article, we review current knowledge about phytohormone influences on early moss development in an attempt to fully unravel the complex regulatory signal transduction networks underlying the developmental decisions of single plant cells in a holistic systems biology approach.
小立碗藓已成为现代植物生物学中一个强大的模式系统。高度标准化的细胞培养技术以及计算生物学、功能基因组学和蛋白质组学所需的工具已经建立起来。有大量的EST文库可供使用，完整的藓类基因组也将很快发布。小立碗藓简单的身体结构和少量不同的细胞类型便于对发育过程进行研究。在丝状的幼年藓类组织中，发育决策依赖于单个细胞的分化。发育步骤由不同的植物激素和环境信号的整合来控制。特别是植物激素生长素、细胞分裂素和脱落酸对藓类早期发育有明显影响。在本文中，我们综述了目前关于植物激素对藓类早期发育影响的知识，试图以整体系统生物学方法全面揭示单个植物细胞发育决策背后复杂的调控信号转导网络。
