are there rhizospheric roots or soil in marine

Yes, in marine ecosystems, rhizospheric roots are found in submerged aquatic vegetation like seagrasses, mangroves, and salt marsh plants. While not soil in the classical sense, the sediment around these roots acts as the rhizosphere, supporting microbial activity and nutrient transformations. Oxygen leakage from roots creates micro-oxic zones, fostering a unique microbial community that can detoxify sulfides, cycle nutrients, and assist in plant survival under submerged, low-oxygen conditions.