Complex sentence: Topographically, the "laimosphere" includes the soil around any portion of plant shoots other than roots where plant exudates influence microbial activities; subterranean organs with a laimosphere include hypocotyls, epicotyls, stems, stolons, corms, bulbs, and leaves.
Split into simpler sentences: Topographically, the "laimosphere" includes the soil around any portion of plant shoots other than roots where a plant exudates influence on microbial activities. Subterranean plant organs within a laimosphere include hypocotyls, epicotyls, stems, stolons, corms, bulbs, and leaves.