Urea is a plant metabolite derived either from root uptake or from catabolism of arginine by
arginase. In agriculture, urea is intensively used as a nitrogen fertilizer. Urea nitrogen enters …

We propose experimental strategies to expand our understanding of the role of Ni in plants,
beyond the Ni-metallocenter of urease, still the only identified Ni-containing plant enzyme …

Abstract The" Protein Abundances Across Organisms" database (PaxDb) is an integrative
metaresource dedicated to protein abundance levels, in tissue-specific or whole-organism …

Ecologists have long recognized that species are sustained by the flux, storage and turnover
of two biological currencies: energy, which fuels biological metabolism and materials (ie …

Ecology Letters (2011) 14: 244–250 Abstract One of the most intriguing patterns in the
biosphere is the similarity of the atomic nitrogen‐to‐phosphorus ratio (N: P)= 16 found in …

Pervasive relationships between growth rate, genome size and RNA content exist. One
interesting potential consequence of these interrelationships is that selection for high growth …

Abstract Background Selenium (Se) is an essential trace element that occurs in proteins in
the form of selenocysteine (Sec). It is transported throughout the body in the form of Sec …

Global change analyses usually consider biodiversity as a global asset that needs to be
preserved. Biodiversity is frequently analysed mainly as a response variable affected by …

Protein evolution is not simply a race toward improved function. Because organisms
compete for limited resources, fitness is also affected by the relative economy of an …

Plants release back to the atmosphere about half of the CO2 they capture by photosynthesis.
Decreasing the rate of crop respiration could therefore potentially increase yields, store …