Establishment of Vesicular-Arbuscular Mycorrhizal Fungi and Other Microorganisms on a Beach Replenishment Site in Florida

摘要: Beach replenishment is a widely used method of controlling coastal erosion. To reduce erosional losses from wind, beach grasses are often planted on the sands. However, there little information microbial populations in this material that may affect plant establishment and growth. The objectives research were to document changes vesicular-arbuscular mycorrhizal (VAM) fungi other soil microorganisms materials determine whether roots transplanted become colonized by beneficial microbes. study was conducted over 2-year period project northeastern Florida. Three sampling locations established at 1-km intervals along beach. Each location consisted three plots: an dune, sand with Uniola paniculata Panicum sp., left unplanted. Fungal bacterial increased rapidly rhizosphere plots. no bacteria recovered could fix significant amounts N2. VAM slowly grasses. Even after two growing seasons, levels root colonization sporulation significantly below those found dune. There shift dominant zone respect dunes. most abundant species dunes Glomus deserticola, followed Acaulospora scrobiculata Scutellospora weresubiae. globiferum, G. deserticola aggregatum.