Cytokinin is an important plant hormone and its mode of action has been extensively studied; however, to date, the subcellular localisation of cytokinin perception and signal transduction remains a matter of debate. This study describes cytokinin receptor–phosphotransmitter interaction and its subcellular localisation in living plant cells and it provides several experimental evidences for receptor activity at the endoplasmic reticulum (ER) membrane. It is concluded that intracellular cytokinins within the ER lumen may play an important role in cytokinin signalling, at least in some cell types.
Welcome to the Department of Botany and Plant Sciences at the University of California, Riverside. Our website provides visitors with information about the Department, our faculty, students and staff, and our many programs and support facilities. Our mission is to conduct cutting-edge research in plant biology to advance fundamental scientific knowledge and solve critical issues for the state of California, and to educate and train graduate and undergraduate students to become science professionals and informed global citizens. The department has strong programs in basic plant cell biology, responses of plants to environmental stresses, plant ecology, genetics, genomics, and evolution. These strengths in basic research complement applied research programs that use the traditional tools of plant science and the new technologies of genomics to meet the evolving needs of California's $27 billion agricultural industry. Development of new varieties and crop management strategies help address the challenges of climate change and new pest and disease.