Biomass pretreatment-derived degradation compounds, such as furfural and 5-hydroxymethyl-furfural (HMF),inhibit the growth of fermentation microorganisms that utilize biomass to produce biofuels and chemicals. Here we report that manganese(III) can degrade furfural and HMF, making them less toxic to microorganisms. Treatment with manganese(III) reduced furfural and HMF concentrations in a dose-dependent...
The demand for new fungicides to control plant diseases has
led to experimentation with both previously used and newly developed
fungicides. Silver, an older but little used fungicide, was selected for
evaluation because of its high toxicity to microorganisms. Silver
nitrate and a silver electrolytic cell were tested as potential...
Montane forest vegetation as it occurs on the east flank of the
central Oregon Cascades has provided excellent conditions for a
"natural experiment" in the use of various methodologies in studying
vegetational distribution. This "experiment" has reflected on some
theory and practice for the discipline of plant synecology. Detailed
descriptions,...
Three growth forms of the genus Microseris, of the tribe
Cichorieae, family Compositae, were compared with respect to their
anatomical structure. The purpose of this study was to clarify lines
of evolutionary specialization in the genus. Two of the three species
studied, M. laciniata and M. borealis, are perennials, while...
At the time of the eruptions of Lassen Peak in 1914-1915, an
area of vegetation along the east slope of the mountain approximately
1 1/4 miles wide and four miles long was destroyed. Except for a
few surviving trees, all vegetation was destroyed.
A study of the revegetation of this...