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Author: Shree Nath Singh
Publisher: Springer
ISBN: 3319451561
Category : Science
Languages : en
Pages : 233
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Book Description
This book focuses on the microbial degradation of endosulfan, lindane, chlorophenols, organochlorine, aldrin, dieldrin, isoproturon and atrazine, etc. which are commonly used in crop fields to kill the pests. Further, it illustrates the role of degradative enzymes, metabolic pathways of degradation, toxicity of metabolites, and the factors regulating the pesticide degradation. In view of persistence of synthetic pesticides, scientists have discovered suitable microbes, such as bacteria, fungi and algae (naturally occurring or genetically engineered) over the years. After successful trials under laboratory and field conditions, these microbes are being used to degrade chemical pesticides in agriculture. As of now 2.56 billion kg of chemical pesticides is used every year to protect agricultural fields against pest attack. These technologies have been found to be highly effective, eco-friendly and cost-effective without disturbing the agro-ecosystems. As this book contains review articles contributed by various researchers from different countries whose work demonstrates recent advances in microbial degradation of pesticides, it will serve as a ready reckoner and also a valuable quick reference guide for scientists, academicians, cultivators and industrialists alike.
Author: Shree Nath Singh
Publisher: Springer
ISBN: 3319451561
Category : Science
Languages : en
Pages : 233
Get Book
Book Description
This book focuses on the microbial degradation of endosulfan, lindane, chlorophenols, organochlorine, aldrin, dieldrin, isoproturon and atrazine, etc. which are commonly used in crop fields to kill the pests. Further, it illustrates the role of degradative enzymes, metabolic pathways of degradation, toxicity of metabolites, and the factors regulating the pesticide degradation. In view of persistence of synthetic pesticides, scientists have discovered suitable microbes, such as bacteria, fungi and algae (naturally occurring or genetically engineered) over the years. After successful trials under laboratory and field conditions, these microbes are being used to degrade chemical pesticides in agriculture. As of now 2.56 billion kg of chemical pesticides is used every year to protect agricultural fields against pest attack. These technologies have been found to be highly effective, eco-friendly and cost-effective without disturbing the agro-ecosystems. As this book contains review articles contributed by various researchers from different countries whose work demonstrates recent advances in microbial degradation of pesticides, it will serve as a ready reckoner and also a valuable quick reference guide for scientists, academicians, cultivators and industrialists alike.
Author: Rolando Chamy
Publisher: BoD – Books on Demand
ISBN: 953511154X
Category : Technology & Engineering
Languages : en
Pages : 382
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Book Description
This book contains a collection of different biodegradation research activities where biological processes take place. The book has two main sections: A) Polymers and Surfactants Biodegradation and B) Biodegradation: Microbial Behaviour.
Author: Kenneth D. Racke
Publisher:
ISBN:
Category : Business & Economics
Languages : en
Pages : 320
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Book Description
This new volume offers comprehensive information on microbial adaptation for pesticide degradation. Among the many topics covered in its 20 chapters are a general description of enhanced biodegradation as it occurs in an agricultural context; the microbial aspects of enhanced biodegradation, including the genetics, biochemistry, and ecology of pesticide-degrading microorganisms; and the potential impact of enhanced degradation on pesticide fate in aquatic systems and groundwater. Practical options for the management of enhanced biodegradation are also examined, both to enable continued agricultural use of susceptible pesticides and also to exploit the degrading capacity of microorganisms for waste disposal and environmental remediation.
Author: Doris F. Paris
Publisher:
ISBN:
Category : Aquatic biology
Languages : en
Pages : 66
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Book Description
Author: Pankaj Bhatt
Publisher: Springer Nature
ISBN: 9811638403
Category : Science
Languages : en
Pages : 566
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Book Description
Microorganisms are ubiquitous on earth. These microorganisms are able to perform various functions in the environment. Microbial applications are used as biofertilizers, bioremediation, biofortification and other sustainable approaches of environmental development. Indigenous microbial cultures have the potential to perform various functions that are beneficial to achieve the sustainable goals. To date, different strains have been commercialized for the industrial and common applications for the sustainable environment. This book will cover different aspects of microbial technology for sustainable development.
Author: Colin Ratledge
Publisher: Springer
ISBN: 9789401047388
Category : Science
Languages : en
Pages : 590
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Book Description
Life on the planet depends on microbial activity. The recycling of carbon, nitrogen, sulphur, oxygen, phosphate and all the other elements that constitute living matter are continuously in flux: microorganisms participate in key steps in these processes and without them life would cease within a few short years. The comparatively recent advent of man-made chemicals has now challenged the environment: where degradation does not occur, accumulation must perforce take place. Surprisingly though, even the most recalcitrant of molecules are gradually broken down and very few materials are truly impervious to microbial attack. Microorganisms, by their rapid growth rates, have the most rapid turn-over of their DNA of all living cells. Consequently they can evolve altered genes and therefore produce novel enzymes for handling "foreign" compounds - the xenobiotics - in a manner not seen with such effect in other organisms. Evolution, with the production of micro-organisms able to degrade molecules hitherto intractable to breakdown, is therefore a continuing event. Now, through the agency of genetic manipulation, it is possible to accelerate this process of natural evolution in a very directed manner. The time-scale before a new microorganism emerges that can utilize a recalcitrant molecule has now been considerably shortened by the application of well-understood genetic principles into microbiology. However, before these principles can be successfully used, it is essential that we understand the mechanism by which molecules are degraded, otherwise we shall not know where best to direct these efforts.
Author: Ian R. Hill
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 870
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Book Description
Pesticides; Microbiological aspects of the soil, plant, aquatic, air and animal environments - soil and plant; Aquatic environments; The air and animals; The behaviour and fate of pesticides in microbial environments; Microbial transformation of pesticides; Transformations of pesticides in the environment - the experimental approach; Some methods for assessing pesticide effects on non-target soil microorganisms and their activities; Pesticide effects on non-target soil microorganisms; Interactions of pesticides with micro-algae; Pesticides and the micro-fauna of soil and water; Microbial degradation of insecticides; Microbial degradation of herbicides; Microbial degradation of fungicides, fumigants and nematocides.
Author: Arthur Rosenberg
Publisher:
ISBN:
Category : DDT (Insecticide)
Languages : en
Pages : 40
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Book Description
The toxicity and degradation of pesticides introduced into sanitary sewer facilities has yet to be extensively studied. For this reason, the effect and fate of eight pesticides were investigated using the BOD method with a sewage inoculum. Six of the eight chemicals (Carbaryl, Malathion, Diazinon, Dursban, Dichlorvos, and 2,4,-dichlorophenoxyacetic acid) did not retard oxygen consumption by a 0.33% sewage inoculum in a one-week test period at concentrations ranging from 0.1 to 100 micro g/ml of active ingredient. Baygon at 10 and 100 micro g/ml was toxic in the test period. Ficam at 1 and 10 micro g/ml also slowed oxygen consumption during the decomposition of sewage as compared to a control with no pesticide. The BOD method was used to test the biodegradation of the pesticides with each chemical being used as a sole carbon source for an adapted or unadapted inoculum. Carbaryl was readily degraded, and Malathion and Diazinon also appeared to undergo oxidation, although the reaction was incomplete. Dichlorvos, Baygon, and 2,4-D were resistant to breakdown when tested by the BOD method.
Author: R. Lal
Publisher: Springer Science & Business Media
ISBN: 3642699170
Category : Science
Languages : en
Pages : 279
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Book Description
Of all the food produced in the world one third is lost to insect pests, weeds and diseases, and the total world population is estimated as growing from 4000 million in 1975 to about 6000 million by the year 2000. To satisfy these needs, the world's farmers must meet the extra requirement every year. The easiest way in which farmers can increase the amount of food they produce is to prevent the loss due to pests. The biological control measures which were once thought to be the safest methods of pest control have, as we now know, not proved successful on a commercial scale. In such a dismal situation the only solution is to use pesticides to save the losses from pests and to increase the crop yield. Apart from agriculture, pesticides have also contributed much to human com fort by controlling the vectors of typhoid, malaria, sleeping sickness, filariasis, dengue hemorrhage fever, plague etc. On the other hand, the indiscriminate use of insecticides and their harmful effects on nontarget organisms has attracted much attention from people in all walks of life, for example, scientists, administrators, the press and the public. The harmful effects of insecticides on higher organisms such as birds, fish and mammals are easy to observe and have received much attention. However, the interactions of insecticides with microorganisms such as bacteria, fungi, algae and protozoa have gone unnoticed until recently.
Author: Shree Nath Singh
Publisher: Springer Science & Business Media
ISBN: 9783642237898
Category : Science
Languages : en
Pages : 486
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Book Description
Our interest in the microbial biodegradation of xenobiotics has increased many folds in recent years to find out sustainable ways for environmental cleanup. Bioremediation and biotransformation processes harness the naturally occurring ability of microbes to degrade, transform or accumulate a wide range of organic pollutants. Major methodological breakthroughs in recent years through detailed genomic, metagenomic, proteomic, bioinformatic and other high-throughput analyses of environmentally relevant microorganisms have provided us unprecedented insights into key biodegradative pathways and the ability of organisms to adapt to changing environmental conditions. The degradation of a wide spectrum of organic pollutants and wastes discharged into the environment by anthropogenic activities is an emerging need today to promote sustainable development of our society with low environmental impact. Microbial processes play a major role in the removal of recalcitrant compounds taking advantage of the astonishing catabolic versatility of microorganisms to degrade or transform such compounds. New breakthroughs in sequencing, genomics, proteomics, bioinformatics and imaging are generating vital information which opens a new era providing new insights of metabolic and regulatory networks, as well as clues to the evolution of degradation pathways and to the molecular adaptation strategies to changing environmental conditions. Functional genomic and metagenomic approaches are increasing our understanding of the relative importance of different pathways and regulatory networks to carbon flux in particular environments and for particular compounds. New approaches will certainly accelerate the development of bioremediation technologies and biotransformation processes in coming years for natural attenuation of contaminated environments
