Researchers in Livermore California are using "four different 
imaging techniques to systematically drill down deep into the 
cells of Zinnia elegans." They are able to see detailed surfaces 
of cells and make out chemical composition, which will give better 
understanding of the nature of cell walls. Production of any 
lignocellulosic biofuel is dependent on effectively breaking the 
cell wall and releasing valuable sugars therefore, these imaging 
techniques may really help our ability to extract liquid fuel from 
biomass.

https://publicaffairs.llnl.gov/news/news_releases/2010/NR-10-07-03.html
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VINSON,FLORA P