rhizosphere the epicenter of soil biogeochemical processes. With this opinion article, we
argue to rethink the rhizosphere boundaries: as gases can diffuse several centimeters away
from the roots into the soil, the portion of soil influenced by root activities is larger than the
strictly root-adhering soil. Indeed, gases are key drivers of biogeochemical processes due to
their roles as energy sources or communication molecules, which has the potential to modify …