Erica Cezarine de Arruda

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The production of both ribitol (which is the translocatable form of reduced carbon) and mannitol (which is the main accumulation form of carbon) by thallus samples of Cladonia sandstedei increases when exogenous urea is supplied to the lichen. In addition, the synthesis of atranorin and its precursor, methyl β-orcinol carboxylate, is also enhanced by urea.(More)
The Araguaia River floodplain is a large wetland in the tropical savanna belt (cerrado) in the southern Amazon basin. Studies using multitemporal satellite Landsat 5 TM images with a spatial resolution of 30 m indicate a surface area at maximum flood level of 88,119 km2. During the low-water period, only 3.3 % of the area is covered by water. Flooding is(More)
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