What we learn from extremophiles

Schröder, Carola; Burkhardt, Christin; Antranikian, Garabed

doi:10.1007/s40828-020-0103-6

Cited by 24 publications

(7 citation statements)

References 23 publications

(26 reference statements)

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“…Those that survive in acidic pH are termed acidophiles. Those that live in alkaline pH are called alkaliphiles, while those that survive neutral pH are called neutrophils (Schröder et al, 2020). The optimum pH observed when A. niger was used to bioremediate Hg, Cu, Co., Zn, and Ag was between 4-5.5 (Acosta-Rodríguez et al, 2018).…”

Section: Factors Affecting the Efficiency Of Renamentioning

confidence: 99%

Remediation by enhanced natural attenuation; an environment-friendly remediation approach

Ayilara,

Adeleke,

Adebajo

et al. 2023

Front. Environ. Sci.

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The uncontrolled use of chemicals, urban wastes, nuclear resources, mining, petrochemicals and disposal of sewage sludge only a few anthropogenic activities that have contributed to the rapid industrialization and severe heavy metal contamination of soils and waterways. Both inorganic and organic pollutants, such as heavy metals, pesticides, petroleum hydrocarbons, and polycyclic aromatic hydrocarbons, can impact the composition and functionality of soils. Soils and plants are affected by pollution, thus, pose a dire threat to food security. This directly renders the soil unuseful for agricultural purposes, destroys the beneficial microbes in the soil, reduces the soil organic matter content, causes the imbalance of soil nutrients, affects plant growth and the interaction between the plants and microbes, subsequently affecting the soil and crop productivity. In addition, environmental pollutants affect human health, leading to different illnesses such as headaches, allergies, coughs, depression, chest pain, nausea, diabetes, liver problems, cancers, eye problems, and so on. Remediation (physical, chemical or biological) is therefore necessary to reduce the impacts of these pollutants in the environment. Bioremediations involve using natural products from plants, microbes, and so on, to detoxify the environment and make it useful or productive again. A key type of remediation is the Remediation by Enhanced Natural Attenuation (RENA) which involves the turning of soil to promote microbial proliferation, aeration, nutrient availability, moisture and consequently, the degradation of pollutants. This review discusses the technology of RENA, the associated microbes, the mechanism of its action, challenges associated with its usage and recommendations to advance the use of RENA for a sustainable environment.

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Section: Factors Affecting the Efficiency Of Renamentioning

confidence: 99%

Remediation by enhanced natural attenuation; an environment-friendly remediation approach

Ayilara,

Adeleke,

Adebajo

et al. 2023

Front. Environ. Sci.

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“…Extremophiles are organisms which survive and thrive under conditions considered hostile from an anthropogenic point of view. Extreme environments can be natural, such as hypersaline lakes, hydrothermal vents, volcanos, arid deserts, the deep ocean, the upper atmosphere, or artificial, such as spacecrafts and operating rooms ( Merino et al, 2019 ; Schröder et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Industrial Biotechnology Based on Enzymes From Extreme Environments

Mesbah

2022

Front. Bioeng. Biotechnol.

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Biocatalysis is crucial for a green, sustainable, biobased economy, and this has driven major advances in biotechnology and biocatalysis over the past 2 decades. There are numerous benefits to biocatalysis, including increased selectivity and specificity, reduced operating costs and lower toxicity, all of which result in lower environmental impact of industrial processes. Most enzymes available commercially are active and stable under a narrow range of conditions, and quickly lose activity at extremes of ion concentration, temperature, pH, pressure, and solvent concentrations. Extremophilic microorganisms thrive under extreme conditions and produce robust enzymes with higher activity and stability under unconventional circumstances. The number of extremophilic enzymes, or extremozymes, currently available are insufficient to meet growing industrial demand. This is in part due to difficulty in cultivation of extremophiles in a laboratory setting. This review will present an overview of extremozymes and their biotechnological applications. Culture-independent and genomic-based methods for study of extremozymes will be presented.

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“…Algal biomass as well as lignocellulose from land plants hence represent an inexpensive renewable energy source. Extreme environments are attractive ecosystems for the isolation of heat- or salt-tolerant enzymes from (hyper)thermophilic or halophilic microorganisms, respectively (Schröder et al, 2020 ). These enzymes are relevant to the bioenergy sector as well as to other industries in the production of paper food and other crops, and textiles.…”

mentioning

confidence: 99%