Phytohormones and the cell wall in Arabidopsis during seedling growth

• Published in: Trends in plant science Vol. 15; no. 5; pp. 291 - 301
• Main Authors: Sánchez-Rodríguez, Clara, Rubio-Somoza, Ignacio, Sibout, Richard, Persson, Staffan
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.05.2010; [Kidlington, Oxford, UK]: Elsevier Science Ltd; Elsevier
• Subjects: Arabidopsis - cytology; Arabidopsis - genetics; Arabidopsis - growth & development; Arabidopsis - metabolism; Biological and medical sciences; Cell Size; Cell Wall - metabolism; Fundamental and applied biological sciences. Psychology; Life Sciences; Plant Growth Regulators - metabolism; Seedlings - growth & development; Seedlings - metabolism; Vegetal Biology; Arabidopsis thaliana; Cruciferae; Growth; Dicotyledones; Plant juvenile growth stage; Angiospermae; Spermatophyta; Phytohormone; Plant sciences; Experimental plant; Cell wall; plant growth regulators; plantes; régulateur de croissance; cell wall; plant sciences; cell size; seedling; phytohormones
• ISSN: 1360-1385; 1878-4372
• DOI: 10.1016/j.tplants.2010.03.002

Cell wall biosynthesis, and remodelling, is a prerequisite for plant growth; from cell plate formation in dividing cells, to the strengthening of the vascular tissue by secondary cell wall deposits. Many plant hormones are also essential for plant growth and development, such as auxin that controls cell proliferation and differentiation. Direct links between hormone actions and changes in cell wall structure have therefore been assumed, and long sought. While many studies during recent decades have supported such relationships, the vast majority have been inferred through indirect means. In an era that embraces cell-wall-related products, including cellulosic biofuels, we attempt to give an overview of phytohormone-mediated cell expansion, and cell wall biosynthesis in Arabidopsis during seedling growth.