The oxygen isotope composition of phosphate released from phytic acid by the activity of wheat and Aspergillus niger phytase

• Published in: Biogeosciences Vol. 12; no. 13; pp. 4175 - 4184
• Main Authors: von Sperber, C., Tamburini, F., Brunner, B., Bernasconi, S. M., Frossard, E.
• Format: Journal Article
• Language: English
• Published: Katlenburg-Lindau Copernicus GmbH 14.07.2015; Copernicus Publications
• Subjects: Acid phosphatase; Acids; Adenosine monophosphate; Amino acid sequence; Amino acid sequences; Amino acids; AMP; Aspergillus niger; Atomic properties; Bioavailability; Chemical composition; DNA; Enzymes; Enzymolysis; Extracellular; Extracellular enzymes; Fractionation; Glycerophosphate; Histidine; Hostages; Hydrolysis; Inositol; Isotope composition; Isotope fractionation; Isotopes; Microorganisms; Organic phosphorus; Organic phosphorus compounds; Organophosphorus compounds; Oxygen; Oxygen atoms; Oxygen isotopes; Phosphatase; Phosphatases; Phosphates; Phosphorus; Phosphorus compounds; Phytase; Phytic acid; Potatoes; Reaction mechanisms; Seeds; Soil; Substrates; Wheat; Wheat germ

Phosphorus (P) is an essential nutrient for living organisms. Under P-limiting conditions plants and microorganisms can exude extracellular phosphatases that release inorganic phosphate (Pi) from organic phosphorus compounds (Porg). Phytic acid (myo-inositol hexakisphosphate, IP6) is an important fo...