Mobile Genetic Elements Involved in the Evolution of Bacteria that Degrade Recalcitrant Xenobiotic Compounds

Nagata, Yasunobu; Kato, Hiromi; Ohtsubo, Yoshiyuki; Tsuda, Masashi

doi:10.1007/978-981-13-3411-5_9

Cited by 4 publications

(4 citation statements)

References 77 publications

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“…The rate of adaptation of microorganisms to pesticides may be considered important in maintaining equilibrium upon addition of agrochemicals, as there is an increase in the population of microbes able to degrade the agrochemical. Some of the microbial genes responsible for pesticide degradation have been identified, e.g., lin A and lin B genes have a role in the degradation of different forms of hydrocarbons along with their degradation intermediates [ 119 , 120 , 121 ].…”

Section: Effect Of Pesticides On Microbial Diversitymentioning

confidence: 99%

Linking Soil Microbial Diversity to Modern Agriculture Practices: A Review

Gupta

Singh

Sahu

et al. 2022

IJERPH

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Agriculture is a multifarious interface between plants and associated microorganisms. In contemporary agriculture, emphasis is being given to environmentally friendly approaches, particularly in developing countries, to enhance sustainability of the system with the least negative effects on produce quality and quantity. Modern agricultural practices such as extensive tillage, the use of harmful agrochemicals, mono-cropping, etc. have been found to influence soil microbial community structure and soil sustainability. On the other hand, the question of feeding the ever-growing global population while ensuring system sustainability largely remains unanswered. Agriculturally important microorganisms are envisaged to play important roles in various measures to raise a healthy and remunerative crop, including integrated nutrient management, as well as disease and pest management to cut down agrochemicals without compromising the agricultural production. These beneficial microorganisms seem to have every potential to provide an alternative opportunity to overcome the ill effects of various components of traditional agriculture being practiced by and large. Despite an increased awareness of the importance of organically produced food, farmers in developing countries still tend to apply inorganic chemical fertilizers and toxic chemical pesticides beyond the recommended doses. Nutrient uptake enhancement, biocontrol of pests and diseases using microbial inoculants may replace/reduce agrochemicals in agricultural production system. The present review aims to examine and discuss the shift in microbial population structure due to current agricultural practices and focuses on the development of a sustainable agricultural system employing the tremendous untapped potential of the microbial world.

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Section: Effect Of Pesticides On Microbial Diversitymentioning

confidence: 99%

Linking Soil Microbial Diversity to Modern Agriculture Practices: A Review

Gupta

Singh

Sahu

et al. 2022

IJERPH

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“…As members of the well-known sphingomonads group, Novosphingobium spp. are also characterized by the outstanding degradation capacity of polycyclic aromatic compounds [2–5], such as Novosphingobium aromaticivorans , Novosphingobium pentaromativorans and Novosphingobium taihuense [6–8]. Until December 2019, 49 species of the genus had been validly published [9], including the recently described Novosphingobium meiothermophilum [10].…”

Section: Full-textmentioning

confidence: 99%

Novosphingobium silvae sp. nov., isolated from subtropical forest soil

Feng

Chen

Zhang

et al. 2020

International Journal of Systematic and Evolutionary Microbiology

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“…The third strategy allows for evolution in quantum leaps [53] and is mediated through mobile genetic elements (MGEs) like plasmids (conjugative and non-conjugative), transposons, integrative conjugative elements (ICEs) and genomic islands (GEIs), as well as phages and prophages. The association of MGEs with catabolic gene clusters, as well as high levels of similarity in gene organization and nucleotide sequences among phylogenetically and geographically distant microbial species suggest that HGT is the major player in acquisition and assembly of the degradative pathways in microorganisms [25,54,55,56,57]. The presence of PAH-degradation genes on MGEs is an indication of ease of mobilization of catabolic genes and hence better adaptability to the polluted environment [58].…”

Section: Horizontal Gene Transfer Elements Involved In Catabolism mentioning

confidence: 99%

Variability in Assembly of Degradation Operons for Naphthalene and its derivative, Carbaryl, Suggests Mobilization through Horizontal Gene Transfer

Phale

Shah

Malhotra

2019

Genes

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In the biosphere, the largest biological laboratory, increased anthropogenic activities have led microbes to evolve and adapt to the changes occurring in the environment. Compounds, specifically xenobiotics, released due to such activities persist in nature and undergo bio-magnification in the food web. Some of these compounds act as potent endocrine disrupters, mutagens or carcinogens, and therefore their removal from the environment is essential. Due to their persistence, microbial communities have evolved to metabolize them partially or completely. Diverse biochemical pathways have evolved or been assembled by exchange of genetic material (horizontal gene transfer) through various mobile genetic elements like conjugative and non-conjugative plasmids, transposons, phages and prophages, genomic islands and integrative conjugative elements. These elements provide an unlimited opportunity for genetic material to be exchanged across various genera, thus accelerating the evolution of a new xenobiotic degrading phenotype. In this article, we illustrate examples of the assembly of metabolic pathways involved in the degradation of naphthalene and its derivative, Carbaryl, which are speculated to have evolved or adapted through the above-mentioned processes.

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Mobile Genetic Elements Involved in the Evolution of Bacteria that Degrade Recalcitrant Xenobiotic Compounds

Cited by 4 publications

References 77 publications

Linking Soil Microbial Diversity to Modern Agriculture Practices: A Review

Linking Soil Microbial Diversity to Modern Agriculture Practices: A Review

Novosphingobium silvae sp. nov., isolated from subtropical forest soil

Variability in Assembly of Degradation Operons for Naphthalene and its derivative, Carbaryl, Suggests Mobilization through Horizontal Gene Transfer

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