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Interactions between Proteins and Soil Mineral Surfaces: Environmental and Health Consequences

¹ Biogéochimie du Sol et de la Rhizosphère
Equipe Protéines dans l'Environnement
INRA-SupAgro
2 Place Pierre Viala
34060 Montpellier, France
E-mail: quiquampoix{at}montpellier.inra.fr
² School of Land, Crop and Food Sciences
The University of Queensland
Brisbane, Queensland 4072, Australia
E-mail: r.burns{at}uq.edu.au

Proteins have long been recognized as important compounds in the biogeochemical cycles of terrestrial ecosystems. They can, for example, provide a source of nitrogen for plants and soil microorganisms following proteolysis and ammonification. Extracellular enzymes liberated in soil are essential catalysts in the mobilization of carbon, nitrogen, phosphorus and sulphur from macromolecular organic matter. Proteins are also implicated in new environmental topics, such as soil carbon storage, horizontal transmission of spongiform encephalopathies and potential negative effects of insecticidal toxins released from transgenic plants.

KEYWORDS: soil biogeochemical cycle, soil enzyme, prion, Bt toxin, glomalin

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