In the sulfur cycle, sulfur can be forever recycled as a source of energy.

Over a shorter time scale (ten million years) changes in the sulfur cycle are easier to observe and can be even better constrained with oxygen isotopes.

Human activities have had a major effect on the global sulfur cycle.

These together with the bacterium species play an important role in the lake's sulfur cycle.

In plants, sulfolipids are important intermediates in the sulfur cycle.

Did you know the sulfur cycle was off by two sigs?

During passive carbonatogenesis, two metabolic cycles can be involved, the nitrogen cycle and the sulfur cycle.

In sulfur cycle, bacteria follow the dissimilatory reduction of sulfate.

The sulfur cycle was the first of the biogeochemical cycles to be discovered.

As such, it is a significant compound in the global sulfur cycle.