Stephen Long

 

Robert Emerson Professor
Departments of Plant Biology and Crop Sciences
Institute for Genomic Biology
379 Edward R. Madigan Laboratory  MC-051
(217) 333-2487

Education

Ph.D. 1976, University of Leeds
B.Sc., 1972, University of Reading

Teaching

IB 440, Plants and Global Change

Research Overview

The overall objectives of my research program are as follows.

 

1) To understand mechanisms of plant responses to both rising atmospheric carbon dioxide concentration and tropospheric ozone, with particular reference to photosynthesis and relating changes at the molecular and biochemical level to observations of whole systems in the field.

 

2) Establish the potential of mitigation of atmospheric change through the development of herbaceous energy crops.

 

3) Advance the development of accessible mechanistic mathematical models relating environmental effects on photosynthesis to plant productivity (see: http://www.life.uiuc.edu/plantbio/wimovac/).

 

4) To understand the limitations to C4 photosynthesis and the adaptation of the process to cooler climates. My lab integrates molecular and biochemical studies with physiological studies of photosynthesis, using state-of-the-art and custom built gas-exchange, fluorescence and controlled environment instrumentation. Much of the work involves developing and testing hypotheses on plant environmental responses under controlled conditions and then testing these in large-scale multi-partner field facilities.

 

The International journal: Global Change Biology (Blackwell Science; see: http://www.blackwellpublishing.com/journals/GCB/) is edited from my laboratory.
We have active research links with several global change laboratories within and outside the US, including Australia, Brazil, France, Italy, Japan, Switzerland and the U.K. A number of our laboratories graduate students have undertaken a part of their research at the overseas sites.


I was recently invited to meet with President Bush to discuss Bioenergy options.

Recent Publications

Wittig, V.E., Ainsworth, E.A., Long, S.P. (2007) To what extent do current and projected increases in surface ozone affect photosynthesis and stomatal conductance of trees? A meta-analytic review of the last three decades of experiments. Plant, Cell & Environment, 30:1150-1162.

 

Bernacchi, CJ; Kimball, BA; Quarles, DR; Long, SP; Ort, DR (2007) Decreases in stomatal conductance of soybean under open-air elevation of [CO2] are closely coupled with decreases in ecosystem evapotranspiration, Plant Physiology. 143: 134-144.

 

Long, SP; Ainsworth, EA; Leakey, ADB; Nosberger, J; Ort, DR (2006) Food for thought: Lower-than-expected crop yield stimulation with rising CO2 concentrations, Science 312: 1918- 1921.