ISSN:
1573-5036
Keywords:
actinorhizal plants
;
nitrogen fixation
;
oligonucleotide probes
;
ribosomal RNA
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Abstract Ecological studies on the actinomyceteFrankia are often influenced by the difficulty to isolate and identify this microorganism. The application of molecular biological techniques offers possibilities to detect microbes without isolation and cultivation.Nif genes or whole plasmids can serve as targets for the design of specific probes. Alternatively, ribosomal RNA (rRNA), commonly used in modern phylogenetic studies, can be used as a target molecule in ecological studies. This paper gives an overview of new developments on the use of 16S rRNA as a target molecule for oligonucleotide probes. Group-specific sequences in the 16S rRNA ofFrankia can be used as targets for oligonucleotide probes that a) recognize ineffectiveFrankia strains onAlnus, b) recognize effective strains onAlnus, c) recognize allFrankia strains tested so far. The present paper summarizes the essential steps needed for the use of these probes for the detection ofFrankia strains in soil without isolation and cultivation.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02187431
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