Abundance and adaptation level of some soil microbes in salt-affected soils
2002
Biro, B. | Villanyi, I. | Koves-Pechy, K.
The abundance of some culturable soil microorganisms (bacteria and fungi) was examined at two Hungarian salt-affected soils of the Hortobagy region. In addition to the so-called "helper bacteria" (Pseudomonas sp., nitrogen fixers), which are mainly attached to the rhizoplane, the abundance of other microbial groups (total number of bacteria, micromycetes, Actinomycetes) were also assessed. A modified, selective plate dilution assay was used with increasing salt (NaCl) concentrations, for assessing the salt tolerant ratio of specific microbial groups. The type of main salt-specific ions differed at two sites, resulting more or less stressed pH conditions in the rhizosphere of the most typical halophytes.
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