ISSN:
1432-0789
Keywords:
Mycorrhiza
;
Inoculation
;
Microbial populations
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Geosciences
,
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Summary We examined methods for the introduction and establishment of microorganisms in soils treated with inocula commonly used in research with vesicular-arbuscular mycorrhizal (VAM) fungi. Our purpose was to test the assumption that similar microbial groups become established in VAM fungal and control treatments. Microbial activity (CO2 evolution) and/or the populations of protein-, chitin-, and cellulose-decomposing organisms, fluorescentPseudomonas spp., and total. fungi, bacteria, and protozoa were quantified. In closed, nonplanted systems, the establishment of microbial groups in soil, and their populations, was influenced by the type of inoculum used. In open, planted pots, the type of inoculum used affected microbial populations, shoot dry weight, and shoot and root P content, but did not affect root dry weight or shoot and root N content. We conclude that similar functional groups of microorganisms can establish in VAM and control treatments if a VAM-fungal inoculum wash is applied to both treatments. Inoculum prepared from a non VAM plant does not provide an adequate control treatment.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00640633
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