John E. Sheehy, 76, a crop ecologist and crop modeler at the International Rice Research Institute (IRRI) for 14 years (1995-2009), passed away last Friday (7 June 2019) after battling Parkinson’s disease and multiple system atrophy (MSA) for several years in Marlow, Buckinghamshire, UK.
For his entire time at IRRI, he headed the Applied Photosynthesis and Systems Modeling Laboratory. He was also head of IRRI’s Climate Unit and Systems Modeling Group and was adjunct professor in the Agronomy Department of the University of the Philippines Los Bańos.
At the turn of the century, he kick-started a project designed to make rice utilize photosynthesis more efficiently. It all started with a think tank that he organized, which was attended by a small group of elite modelers, systems analyzers, ecologists, and environmental and crop physiologists who were on a quest to reduce hunger by redesigning rice photosynthesis. The gathering was at IRRI in the Philippines, 30 November–3 December 1999. The result was
a proceedings that became the “Bible” for a while as research got underway. It was superseded by
Charting new pathways to C4 rice, published by IRRI and World Scientific, emanating from a 2006 follow-up workshop to catch up with the rapidly growing literature.
In an interview (15:11) given at IRRI on 26 March 2013, Dr. Sheehy talked about the project’s concept. “C4 rice is the ultimate goal of rice scientists' attempt to supercharge photosynthesis, the process by which a plant uses sunlight, carbon dioxide, and water to produce carbohydrates—in rice so that it yields more grain. Rice, a C3 plant, uses these resources far less efficiently than C4 plants (e.g., maize) do. A C4 rice plant would use less water and fertilizer and produce at least 50% more grain.”
Dr. Sheehy appreciated that IRRI could not realize the dream of developing C4 rice alone. So, after the 1999 think tank, he set about persuading, and bringing together, a group of many of the best scientists worldwide to join in the
C4 Rice Project. In 2008, he helped secure partial funding from the Bill & Melinda Gates Foundation, which continues support to this day. At the time of his death, and after 20 years of research, C4 rice is not yet a reality, but significant progress has been made. The ongoing Project is indeed an important part of Dr. Sheehy’s scientific legacy.