In thefield of material sciences,nano-based formulations have attracted the attention of researchers,as they are highly suit-able for applications in differentfields.Conventionally,physical and chemical techniques have...In thefield of material sciences,nano-based formulations have attracted the attention of researchers,as they are highly suit-able for applications in differentfields.Conventionally,physical and chemical techniques have been employed to synthesize silver nanoparticles(AgNPs).However,they use hazardous and poisonous ingredients,which are toxic to human health and the environment.Therefore,it necessitates the development of an eco-friendly and economical method for the fabrication of silver nanoparticles.Biogenic AgNPs have been synthesized using plants and microorganisms due to the presence of reducing agents such as metabolites and enzymes in their extracts.The size,shape,and other properties of the biogenic AgNPs have been characterized using various biophysical techniques.AgNPs are widely used to treat infections and diseases in humans and plants.They have demonstrated antifungal and antibacterial activities and,therefore,have been applied in various therapeutic applications like the treatment of cancer,wound dressing,orthopedic and cardiovascular implants,and dental composites.Biogenic AgNPs have been applied for the remediation of environmental pollution,including that of water and air via the detoxification of synthetic dyes and other contaminants.They have improved seed germination and plant growth after application as nanofertilizers and nano-pesticides,as well as in masking the effects of stress.This review describes various biological routes used in the green synthesis of silver nanoparticles and their potential applications in agricultural,environmental,and medicalfields.展开更多
Phytases belong to the class of phosphohydrolases that begin the step-wise hydrolysis of phosphates from phytates. Phytates are a derivative of myo-inositol, which is the primary storage form of organic phosphorus in ...Phytases belong to the class of phosphohydrolases that begin the step-wise hydrolysis of phosphates from phytates. Phytates are a derivative of myo-inositol, which is the primary storage form of organic phosphorus in plant cells. Phytase has been used globally to diminish phosphorus pollution and to enhance nutrition in monogastrics. In this review, the classification, sources, and diversity of microbial phytases, and their practical applications, as well as supplementation of the soil with transgenic and wild types of microbial strains, which can release phytase to enhance phosphorus availability for plant uptake and reduce the need for fertilizers, are discussed. The overexpressed microbial phytases in transgenic plants enhance the growth capacity of co-cultivated plants and can therefore be employed in agricultural and biotechnological practices, such as intercropping. The introduction of phytases into the soil for improved plant growth and enhanced crop yield can be accomplished without extra cost. A diverse group of photoautotrophic microalgae can synthesize phytase and will likely be useful in many human food and animal industries.展开更多
Globally,urbanization and a steady increase in population generate a huge amount of wastes,which leads to a series of economic,social,and environmental changes,mainly in developing countries.There is an utmost need fo...Globally,urbanization and a steady increase in population generate a huge amount of wastes,which leads to a series of economic,social,and environmental changes,mainly in developing countries.There is an utmost need for efficient management strategies for the beneficial utilization of these wastes into useful products.Among these strategies,composting is gaining attention due to its benefits of solid waste management,such as proper sterilization,and economical and effective bioconversion of lignocellulosic wastes to valuable products.Composting is an effective and sustainable approach for the management of various lignocellulosic wastes.This process comprises a series of effective waste treatment steps to ensure sustainable agriculture.Different composting methods have been explored for solid waste management.Furthermore,the influence of various factors relevant to composting has been elucidated.Microbes play a significant role in enhancing the degradation of lignocellulosic residues by secreting different hydrolytic enzymes.Compost has been utilized for increasing soil properties and improving plant growth.展开更多
文摘In thefield of material sciences,nano-based formulations have attracted the attention of researchers,as they are highly suit-able for applications in differentfields.Conventionally,physical and chemical techniques have been employed to synthesize silver nanoparticles(AgNPs).However,they use hazardous and poisonous ingredients,which are toxic to human health and the environment.Therefore,it necessitates the development of an eco-friendly and economical method for the fabrication of silver nanoparticles.Biogenic AgNPs have been synthesized using plants and microorganisms due to the presence of reducing agents such as metabolites and enzymes in their extracts.The size,shape,and other properties of the biogenic AgNPs have been characterized using various biophysical techniques.AgNPs are widely used to treat infections and diseases in humans and plants.They have demonstrated antifungal and antibacterial activities and,therefore,have been applied in various therapeutic applications like the treatment of cancer,wound dressing,orthopedic and cardiovascular implants,and dental composites.Biogenic AgNPs have been applied for the remediation of environmental pollution,including that of water and air via the detoxification of synthetic dyes and other contaminants.They have improved seed germination and plant growth after application as nanofertilizers and nano-pesticides,as well as in masking the effects of stress.This review describes various biological routes used in the green synthesis of silver nanoparticles and their potential applications in agricultural,environmental,and medicalfields.
文摘Phytases belong to the class of phosphohydrolases that begin the step-wise hydrolysis of phosphates from phytates. Phytates are a derivative of myo-inositol, which is the primary storage form of organic phosphorus in plant cells. Phytase has been used globally to diminish phosphorus pollution and to enhance nutrition in monogastrics. In this review, the classification, sources, and diversity of microbial phytases, and their practical applications, as well as supplementation of the soil with transgenic and wild types of microbial strains, which can release phytase to enhance phosphorus availability for plant uptake and reduce the need for fertilizers, are discussed. The overexpressed microbial phytases in transgenic plants enhance the growth capacity of co-cultivated plants and can therefore be employed in agricultural and biotechnological practices, such as intercropping. The introduction of phytases into the soil for improved plant growth and enhanced crop yield can be accomplished without extra cost. A diverse group of photoautotrophic microalgae can synthesize phytase and will likely be useful in many human food and animal industries.
基金the financial assistance as Senior Research Fellowship(No.09/382(0179)/2016-EMR1)from the Council of Scientific and Industrial Research(CSIR),New Delhi,India during the tenure of this research workthe Haryana State Council for Science and Technology,Panchkula,India(Nos.1743 and HSCST/R&D/2017/62)for providing financial support during the tenure of this research work。
文摘Globally,urbanization and a steady increase in population generate a huge amount of wastes,which leads to a series of economic,social,and environmental changes,mainly in developing countries.There is an utmost need for efficient management strategies for the beneficial utilization of these wastes into useful products.Among these strategies,composting is gaining attention due to its benefits of solid waste management,such as proper sterilization,and economical and effective bioconversion of lignocellulosic wastes to valuable products.Composting is an effective and sustainable approach for the management of various lignocellulosic wastes.This process comprises a series of effective waste treatment steps to ensure sustainable agriculture.Different composting methods have been explored for solid waste management.Furthermore,the influence of various factors relevant to composting has been elucidated.Microbes play a significant role in enhancing the degradation of lignocellulosic residues by secreting different hydrolytic enzymes.Compost has been utilized for increasing soil properties and improving plant growth.
