重力による植物根の形態変化における細胞接着因子

概要

論文の詳細を見る
Arabinogalactan-proteins (AGPs), a family of proteoglycans, are commonly found in higher plants and implicated in many physiological processes such as cell adhesion, cell-to-cell signaling, cell elongation, cell death, and stress responses. To address the molecular functions of AGP in the regulation of growth anisotropy of roots induced by the gravity signal, we visualized AGP species with GFP in living Arabidopsis plants. The dynamic changes of the gravity-responsive AGP species in the localization and accumulation were observed under the hypergravity condition. The results indicate that the expression of AGP genes is regulated by the magnitude of gravity. In the future study, the molecular functions of AGPs in the growth anisotropy should be clarified.