Peroxidases are enzymes that break down hydrogen peroxide in organisms. Since their discovery in 1998, the electron source of ...

Iron sulfide plaques have been observed on roots of wild rice (Zizania palustris) and other wetland plants grown in sulfur-impacted freshwater ecosystems, but the mechanism of their formation and ...

From the column: "The Keetac plant’s jobs and an important national-security asset (could) be preserved ... (while) the land ...

Venus has long been called a dry, hellish planet veiled in clouds of liquid acid. But new study of old spacecraft data tells ...

Biomineralization in animals exclusively features oxygen-based minerals with a single exception of the scaly-foot gastropod Chrysomallon squamiferum, the only metazoan with an iron sulfide skeleton.