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Experimental Protocol for Detecting Cyanobacteria in Liquid and Solid Samples with an Antibody Microarray Chip
Published on: February 7, 2017
Developing biochemical and molecular markers for cyanobacterial inoculants
R Prasanna1, K Madhan, R N Singh
1Division of Microbiology, Indian Agricultural Research Institute, New Delhi 110 012, India. radhapr@gmail.com
Folia Microbiologica
|October 14, 2010
Summary
Researchers developed new methods to identify beneficial cyanobacteria strains. These methods use antibiotic resistance, sugar use, and DNA fingerprinting to track these plant growth-promoting bacteria in soil.
Area of Science:
- Microbiology
- Agricultural Science
- Biotechnology
Background:
- Cyanobacteria are vital microorganisms in various ecosystems.
- Certain cyanobacteria strains exhibit plant growth-promoting (PGP) abilities.
- Effective methods are needed to track and identify specific cyanobacteria strains in agricultural settings.
Purpose of the Study:
- To develop reliable markers for identifying and evaluating the establishment of plant growth-promoting cyanobacteria.
- To differentiate between selected cyanobacteria strains isolated from diverse agro-ecosystems.
Main Methods:
- Developed antibiotic resistance/sensitivity profiles against 40 antibiotics.
- Assessed saccharide utilization patterns using a chromogenic identification system.
- Generated strain-specific DNA fingerprints using PCR amplification with repeat sequence-based primers.
Main Results:
- Identified unique antibiotic resistance/sensitivity profiles for each of the four selected cyanobacteria strains.
- Discovered distinct saccharide utilization capabilities among strains, with some uniquely utilizing melibiose, cellobiose, maltose, and glucosamine.
- Utilized three specific primers to generate unique PCR-based DNA fingerprints for each strain.
Conclusions:
- Established selectable antibiotic markers for individual cyanobacteria strains.
- Biochemical and molecular fingerprinting methods provide robust tools for strain identification and monitoring.
- These developed markers facilitate the evaluation of diazotrophs and their plant growth-promoting efficacy in agro-ecosystems.
