Contact: Richard Hund
American Journal of Botany
Caption: An experiment with invasive grass found that the biomass and rhizome production was severely stunted without bacteria. The larger, red-striped plant on the right had the bacteria and high rates of nitrogen fixation, whereas the plant on the left is smaller because bacteria were inhibited and was not fixing nitrogen. The tin foil wrapping protects the substrate from light. These were grown from sterilized seeds in a growth chamber at the University of Montana.
Credit: Courtesy of Marnie Rout, University of North Texas Health Science Center.
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