Otros
Re-addressing the biosafety issues of plant growth promoting rhizobacteria
Fecha
2019-11-10Registro en:
Science of the Total Environment, v. 690, p. 841-852.
1879-1026
0048-9697
10.1016/j.scitotenv.2019.07.046
2-s2.0-85068575028
Autor
Banaras Hindu University
National Centre for Cell Science
Savitribai Phule Pune University
Chinese Academy of Sciences (CAS)
Benemerita Universidad Autonoma de Puebla
Alltech
Germany and Humboldt University
Tallinn University of Technology
Universidade Estadual Paulista (Unesp)
University of Sorocaba
Institución
Resumen
To promote agronomic sustainability, extensive research is being carried out globally, investigating biofertilizer development. Recently, it has been realized that some microorganisms used as biofertilizers behave as opportunistic pathogens and belong to the biosafety level 2 (BSL-2) classification. This poses serious risk to the environmental and human health. Evidence presented in various scientific forums is increasingly favoring the merits of using BSL-2 microorganisms as biofertilizers. In this review, we emphasize that partial characterization based on traditional microbiological approaches and small subunit rRNA gene sequences/conserved regions are insufficient for the characterization of biofertilizer strains. It is advised herein, that research and industrial laboratories developing biofertilizers for commercialization or environmental release must characterize microorganisms of interest using a multilateral polyphasic approach of microbial systematics. This will determine their risk group and biosafety characteristics before proceeding with formulation development and environmental application. It has also been suggested that microorganisms belonging to risk-group-1 and BSL-1 category should be used for formulation development and for field scale applications. While, BSL-2 microorganisms should be restricted for research using containment practices compliant with strict regulations.