Tolerance strategies in cyanobacterium Fischerella sp. under pesticide stress and possible role of a carbohydrate-binding protein in the metabolism of methyl parathion (MP)

Tiwari, Balkrishna; Verma, Ekta; Chakraborty, Sindhunath; Srivastava, Alok Kumar; Mishra, Arun Kumar

doi:10.1016/j.ibiod.2017.11.025

Cited by 34 publications

(5 citation statements)

References 56 publications

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“…Studies have reported that the two-component system regulates the bacterial physiology according to environmental conditions, such as nitrogen limitation and the presence of xenobiotics compounds. Tiwari et al (2018) reported the importance of this signaling system as a strategy for the tolerance and biodegradation of MP in the cyanobacterium Fischerella sp. In this study, we report the positive regulation of hypothetical proteins in the presence of MP.…”

Section: Discussionmentioning

confidence: 99%

“…Organophosphorus pesticides are one of the most commonly used groups of pesticides worldwide (Tiwari et al, 2018); they have been used extensively in agricultural and household pest control, mainly against insects (Pope, 1999). Their intensive use is often related to environmental pollution events in agricultural soils and the surrounding water (Diagne, Oturan & Oturan, 2007; Begum & Arundhati, 2016; Ahn et al, 2018; Tiwari et al, 2018). These pesticides can inhibit the activity of the acetylcholinesterase enzyme (AChE, EC 3.1.1.7), resulting in the accumulation of the neurotransmitter acetylcholine in synapses.…”

Section: Introductionmentioning

confidence: 99%

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Transcriptional analysis reveals the metabolic state ofBurkholderia zhejiangensisCEIB S4-3 during methyl parathion degradation

Castrejón-Godínez

Ortiz-Hernández

Salazar

et al. 2019

PeerJ

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Burkholderia zhejiangensis CEIB S4-3 has the ability to degrade methyl parathion (MP) and its main hydrolysis byproduct p-nitrophenol (PNP). According to genomic data, several genes related with metabolism of MP and PNP were identified in this strain. However, the metabolic state of the strain during the MP degradation has not been evaluated. In the present study, we analyzed gene expression changes during MP hydrolysis and PNP degradation through a transcriptomic approach. The transcriptional analysis revealed differential changes in the expression of genes involved in important cellular processes, such as energy production and conversion, transcription, amino acid transport and metabolism, translation, ribosomal structure and biogenesis, among others. Transcriptomic data also exhibited the overexpression of both PNP-catabolic gene clusters (pnpABA′E1E2FDC and pnpE1E2FDC) present in the strain. We found and validated by quantitative reverse transcription polymerase chain reaction the expression of the methyl parathion degrading gene, as well as the genes responsible for PNP degradation contained in two clusters. This proves the MP degradation pathway by the strain tested in this work. The exposure to PNP activates, in the first instance, the expression of the transcriptional regulators multiple antibiotic resistance regulator and Isocitrate Lyase Regulator (IclR), which are important in the regulation of genes from aromatic compound catabolism, as well as the expression of genes that encode transporters, permeases, efflux pumps, and porins related to the resistance to multidrugs and other xenobiotics. In the presence of the pesticide, 997 differentially expressed genes grouped in 104 metabolic pathways were observed. This report is the first to describe the transcriptomic analysis of a strain of B. zhejiangensis during the biodegradation of PNP.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Transcriptional analysis reveals the metabolic state ofBurkholderia zhejiangensisCEIB S4-3 during methyl parathion degradation

Castrejón-Godínez

Ortiz-Hernández

Salazar

et al. 2019

PeerJ

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“…Their proteome characterization ventured to cover 70% of the 1458 annotated protein-coding sequences, offering a comprehensive glimpse into the proteins engaged in this biodegradation. Tiwari et al (2018) unveiled the potent role of proteomics in understanding Fischerella spp. 's response to methyl parathion (MP) exposure [160].…”

Section: Proteomicsmentioning

confidence: 99%

“…Tiwari et al (2018) unveiled the potent role of proteomics in understanding Fischerella spp. 's response to methyl parathion (MP) exposure [160]. Through proteomics, they discovered that even after 8 days of incubation with MP, the growth of Fischerella spp.…”

Section: Proteomicsmentioning

confidence: 99%

Phytomicrobiomes: A Potential Approach for Sustainable Pesticide Biodegradation

Salam,

Mahmood,

Asghar

et al. 2024

Applied Sciences

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Globally, pest-induced crop losses ranging from 20% to 40% have spurred the extensive use of pesticides, presenting a double-edged sword that threatens not only human health but also our environment. Amidst various remediation techniques, bioremediation stands out as a compelling and eco-friendly solution. Recently, the phytomicrobiome has garnered increasing attention as endophytic microbes, colonizing plants from their roots, not only foster plant growth but also enhance the host plant’s resilience to adverse conditions. Given the persistent demand for high crop yields, agricultural soils often bear the burden of pesticide applications. Biodegradation, the transformation of complex pesticide compounds into simpler forms through the activation of microbial processes and plant-based enzymatic systems, emerges as a pivotal strategy for restoring soil health. Manipulating the phytomicrobiome may emerge as a viable solution for this purpose, offering a native metabolic pathway that catalyzes pollutant degradation through enzymatic reactions. This review delves into the pivotal role of phytomicrobiomes in the degradation of diverse pesticides in soil. It explores contemporary innovations and paves the way for discussions on future research directions in this promising field.

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“…Interestingly, another tested pesticide, methyl parathion, at 0.25 ppm resulted in faster growth and increased ARA in both species. Tiwari et al (2018) observed changes in growth, phycobiliprotein and carbohydrate contents, and protein- and gene-expression patterns in Fischerella sp. under methyl parathion stress.…”

Section: The Response Of Cyanobacteria To the Presence Of Aromatic Comentioning

confidence: 99%

Metabolic relation of cyanobacteria to aromatic compounds

Żyszka-Haberecht

Niemczyk

Lipok

2018

Appl Microbiol Biotechnol

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Cyanobacteria, also known as blue-green (micro)algae, are able to sustain many types of chemical stress because of metabolic adaptations that allow them to survive and successfully compete in a variety of ecosystems, including polluted ones. As photoautotrophic bacteria, these microorganisms synthesize aromatic amino acids, which are precursors for a large variety of substances that contain aromatic ring(s) and that are naturally formed in the cells of these organisms. Hence, the transformation of aromatic secondary metabolites by cyanobacteria is the result of the possession of a suitable “enzymatic apparatus” to carry out the biosynthesis of these compounds according to cellular requirements. Another crucial aspect that should be evaluated using varied criteria is the response of cyanobacteria to the presence of extracellular aromatic compounds. Some aspects of the relationship between aromatic compounds and cyanobacteria such as the biosynthesis of aromatic compounds, the influence of aromatic compounds on these organisms and the fate of aromatic substances inside microalgal cells are presented in this paper. The search for this information has suggested that there is a lack of knowledge about the regulation of the biosynthesis of aromatic substances and about the transport of these compounds into cyanobacterial cells. These aspects are of pivotal importance with regard to the biotransformation of aromatic compounds and understanding them may be the goals of future research.

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Tolerance strategies in cyanobacterium Fischerella sp. under pesticide stress and possible role of a carbohydrate-binding protein in the metabolism of methyl parathion (MP)

Cited by 34 publications

References 56 publications

Transcriptional analysis reveals the metabolic state ofBurkholderia zhejiangensisCEIB S4-3 during methyl parathion degradation

Transcriptional analysis reveals the metabolic state ofBurkholderia zhejiangensisCEIB S4-3 during methyl parathion degradation

Phytomicrobiomes: A Potential Approach for Sustainable Pesticide Biodegradation

Metabolic relation of cyanobacteria to aromatic compounds

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