The incorporation of 57Fe into two lipoxygenase isoenzymes from soybeans has been achieved making possible the first observations of the iron environment in these proteins using Mössbauer spectroscopy. Immature soybean seeds were grown in tissue culture medium supplied with 57Fe. The iron in the active lipoxygenases that were isolated from the cultured seeds was readily detected in Mössbauer me...

Mössbauer spectrometry gives electronic, magnetic, and structural information from within materials. A Mössbauer spectrum is an intensity of γ-ray absorption versus energy for a specific resonant nucleus such as Fe or Sn. For one nucleus to emit a γ-ray and a second nucleus to absorb it with efficiency, both nuclei must be embedded in solids, a phenomenon known as the “Mössbauer effect.” Mössba...

Introduction: Mössbauer spectroscopy has been used to characterise and quantify the mineralogy of chondritic meteorites by detecting Fe bound in a crystal lattice [1]. The technique investigates the oxidation state and electronic configuration of Fe atoms in minerals [2]. Mössbauer spectra for meteorites frequently show overlapping or poorly separated absorption peaks for olivine and pyroxene, ...