Researchers have conducted detailed laboratory experiments to figure out which groups of soil fungi and bacteria that break down sulphur-containing molecules in soil.
Plants require sulphur to grow, but they cannot absorb it as it mostly exists in soil – as part of large organic molecules. For this, they need networks of arbuscular mycorrhiza (fungi) and bacteria that break down these organic molecules and make the sulphur available to plant roots.
Further details: Symbiotic fungi help plants get enough sulphur