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Studies on the rhizosphere bacteria of ericaceous plants

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Summary

Comparative studies of the rhizosphere of ericaceous plants have indicated that the viable counts of bacteria were higher in the rhizosphere than in the control soil (acid forest soil, pH 3.8). Neither physiological nor morphological dissimilarities were very distinct. The number of auxoautotrophic bacteria was lower in the rhizosphere than in the surrounding soil. In the soil pleomorphic bacteria were as common as non-pleomorphic ones, whereas in the rhizosphere, organisms belonging to the non-pleomorphic group dominated. Further studies of ten different strains (five from the rhizosphere and five from the soil) have shown that the non-pleomorphic strains belong to the genera Pseudomonas, Achromobacter, and Flavobacterium, while the pleomorphic organisms showed properties corresponding to characteristics of the soil corynebacteria. The taxonomic position of these bacteria was less clear, but the observations indicate that they belong to the genus Arthrobacter.

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  1. Department of Microbiology, Agricultural College of Norway, Vollebekk, Norway

    Aaslaug Lode

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  1. Aaslaug Lode
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Lode, A. Studies on the rhizosphere bacteria of ericaceous plants. Plant Soil 23, 161–170 (1965). https://doi.org/10.1007/BF01358342

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