Signals for Survival
If plants had brains, they'd be single-minded, indeed. Their mantra would be
"survive and reproduce." But plants don't use, or express, many of their genes
until absolutely necessary, such as when they are under stress. The ability of
genes to hibernate saves precious energy, says IPG member Shuqun Zhang, associate professor
of biochemistry. Zhang has recently earned high praise in the scientific community
for his studies of the complex internal signals plants send when they are
subject to stress, including extreme heat or cold, viruses or ultraviolet
light.
Roots’ Response to Light May Determine a Plant’s Drought Tolerance
Drought is an ongoing concern for farmers. According to the Missouri Department of Natural Resources, a reduction of one bushel per acre of soybean due to drought reduces Missouri net farm income by approximately $25 million, while a similar reduction in corn yields results in a $5 million decrease. A recent connection made between plant response to light and drought tolerance could help MU scientists develop drought-resistant crops.