Insecticide‐tolerant and plant‐growth‐promoting <i>Rhizobium</i> improves the growth of lentil (<i>Lens esculentus</i>) in insecticide‐stressed soils

Ahemad, Munees; Khan, Mohammad Saghir

doi:10.1002/ps.2080

Cited by 25 publications

(3 citation statements)

References 30 publications

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“…In the same vein, Cappelini et al [ 59 ] observed that the bacterium Burkholderia thailandensis belonging to the phylum Proteobacteria also showed potential for fipronil degradation. Another example is the result observed by Ahemad et al [ 60 ], where the authors stated that the Rhizobium strain MRL3 could grow in a medium with fipronil as the sole source of carbon and nitrogen. Finally, Gangola et al [ 61 ] have demonstrated the potential of Bacillus sp.…”

Section: Discussionmentioning

confidence: 93%

New Insights into the Effect of Fipronil on the Soil Bacterial Community

et al. 2022

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Fipronil is a broad-spectrum insecticide with remarkable efficacy that is widely used to control insect pests around the world. However, its extensive use has led to increasing soil and water contamination. This fact is of concern and makes it necessary to evaluate the risk of undesirable effects on non-target microorganisms, such as the microbial community in water and/or soil. Studies using the metagenomic approach to assess the effects of fipronil on soil microbial communities are scarce. In this context, the present study was conducted to identify microorganisms that can biodegrade fipronil and that could be of great environmental interest. For this purpose, the targeted metabarcoding approach was performed in soil microcosms under two environmental conditions: fipronil exposure and control (without fipronil). After a 35-day soil microcosm period, the 16S ribosomal RNA (rRNA) gene of all samples was sequenced using the ion torrent personal genome machine (PGM) platform. Our study showed the presence of Proteobacteria, Actinobacteria, and Firmicutes in all of the samples; however, the presence of fipronil in the soil samples resulted in a significant increase in the concentration of bacteria from these phyla. The statistical results indicate that some bacterial genera benefited from soil exposure to fipronil, as in the case of bacteria from the genus Thalassobacillus, while others were affected, as in the case of bacteria from the genus Streptomyces. Overall, the results of this study provide a potential contribution of fipronil-degrading bacteria.

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Section: Discussionmentioning

confidence: 93%

New Insights into the Effect of Fipronil on the Soil Bacterial Community

et al. 2022

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“…Studies suggest that Rhizobium strain MRL3 may be exploited as a bioinoculant to augment the efficiency of lentil exposed to insecticide-stressed soils. [5] . On the other hand fungicides such as Dithane M-45 and Bevistin do not have any adverse effect on Rhizobium.…”

Section: Typical Characteristics Of Different Liquid Biofertilizersmentioning

confidence: 99%

Liquid microbial consortium: A potential tool for sustainable soil health

Krishnaprabu¹

2020

J Pharmacogn Phytochem

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The green revolution brought amazing consequences in food grain production but with insufficient concern for agricultural sustainability. The availability and affordability of fossil fuel based chemical fertilizers at farm level in India have been ensured only through imports and subsidies which are largely dependent on GDP of the country. Dependence on chemicals for future agricultural needs would result in further loss in soil health, possibilities of water contamination and calculated burden on the fiscal system. Indiscriminate synthetic fertilizer usage has polluted the soil, water basins, destroyed micro-organisms and eco-friendly insects, made the crop more susceptible to diseases and depleted soil fertility at the primary levels as of today, which is the main concern of the write up. In this critical context Microorganisms have been emerged as the potential alternative for the productivity, reliability and sustainability of the global food chain. Carrier based biofertilzers has already proved to be the best over the agro chemicals and have been showing the tremendous effect on the global agriculture productivity since the past two decades. Rectifying the disadvantages of the carrier based biofertilizers, liquid biofertilizers have been developed which would be the only alternative for the cost effective sustainable agriculture. The article focuses on Liquid Biofertilizer Technology providing reliable reasons for their necessity, specificity and emphasizes that "Use of agriculturally important microorganisms in different combinations i.e. Liquid microbial consortium (LMC) is the only solution for restoration of soil health". Even though biofertilizers are being produced and distributed constantly by private agencies, NGO's, State and Central Government production units for the last three decades, their corresponding usage is not in the satisfactory proportions. To cope with the rising demands for food commodities, serious efforts are being made by the State and Central Governments (under the National Projects) for the sufficient agricultural production by popularizing biofertilizers and making them available to the farmer community. In spite of these efforts, the rate of consumption of biofertilizers is not to the optimum level in comparison with the agrochemicals. The reason attributed is the "non-availability of good and suitable carrier materials" that raises contamination problems and shorter shelf life.

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“…Among PGPR, Pseudomonas and Bacillus are the most commonly described genera possessing plant growth promoting activities but many other taxa are also included in PGPR group. Selected strains of PGPR are being used as seed inoculant ( Sahin et al, 2004;Zahir et al, 2004;Rani et al, 2009;Ahemad and Khan, 2009;Ahemad and Khan, 2010c). The use of PGPR to augment crop productivity has been limited largely due to the variability and inconsistency of results observed under laboratory, greenhouse and field trials.…”

Section: Organisms Acting As Bioinoculantsmentioning

confidence: 99%

A review on plant growth promoting rhizobacteria acting as bioinoculants and their biological approach towards the production of sustainable agriculture

Nehra

Choudhary

2015

JANS

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Plant growth promoting rhizobacteria are the soil bacteria inhabiting around/on the root surface and are directly or indirectly involved in promoting plant growth and development via production and secretion of various regulatory chemicals in the vicinity of rhizosphere. There has been much research interest in PGPB and there is now an increasing number of PGPB being commercialized for various crops. Today a lot of efforts have been made for searching and investigating the PGPB and their mode of action, so that they can be exploited commercially as biofertilizers. Because of the various challenges faced in screening, formulation, and application, PGPB have yet to fulfill their promise and potential as commercial inoculants. Recent progress in our understanding of their diversity, colonization ability, mechanisms of action, formulation, and application should facilitate their development as reliable components in the management of sustainable agricultural systems. Several reviews have discussed specific aspects of PGPB as bioinoculants. We have tried to critically evaluate the current status of bacterial inoculants for contemporary agriculture in developed and developing countries. This review focuses on some important information regarding the biofertilizing potential of some important group of microbes, their formulations, their application for the development of sustainable technology, scope of improvement by genetic engineering, steps to be undertaken for their commercialization and their future prospects.

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Insecticide‐tolerant and plant‐growth‐promoting Rhizobium improves the growth of lentil (Lens esculentus) in insecticide‐stressed soils

Abstract: This study suggests that Rhizobium strain MRL3 may be exploited as a bioinoculant to augment the efficiency of lentil exposed to insecticide-stressed soils.

Cited by 25 publications

References 30 publications

New Insights into the Effect of Fipronil on the Soil Bacterial Community

New Insights into the Effect of Fipronil on the Soil Bacterial Community

Liquid microbial consortium: A potential tool for sustainable soil health

A review on plant growth promoting rhizobacteria acting as bioinoculants and their biological approach towards the production of sustainable agriculture

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