| Citation | Professor Tony Trewavas has made a seminal contribution to the understanding of plant cell signal transduction. Early internationally-acclaimed studies on signal induced macromolecule turnover preceded a series of original and cogent papers which successfully challenged and replaced prevailing orthodoxies concerning plant hormonal signals in development. Pioneering investigations using specifically constructed technologies for measurement, imaging, caged probe and protein kinase experimentation have established calcium as a primary transduction pathway for plant signals. The construction of genetically-engineered luminous plants and bacteria whose luminescence directly reports cytoplasmic calcium is an outstanding and widely recognised achievement. This discovery is transforming our understanding of the processes of transduction, cellular orchestration and communication of both stress and mechanical signals and has enormous future potential for technological agriculture. |