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Root‐Soil Boundary Zones as Seen in the Electron Microscope

1963; Wiley; Volume: 27; Issue: 3 Linguagem: Inglês

10.2136/sssaj1963.03615995002700030018x

1435-0661

Hans Jenny, Karl Grossenbacher,

Biocrusts and Microbial Ecology

Abstract Plants were grown in bentonite clay and in permutite sand. After a suitable period, all void spaces were filled with liquid resin monomer which hardened to a stone‐like mass. Thin sections, a few hundred Angstrom units thick, were cut and observed in the electron microscope. The root is surounded by mucigel which fills the space between cell wall and mineral soil particles. Often it contains colonies of microbes. Contact between mucigel and clay surface is intimate. Colloid chemical interpretations are presented.