Actinobacteria in Special and Extreme Habitats: Diversity, Function Roles and Environmental Adaptations, Second Edition
Actinobacteria in Special and Extreme Habitats: Diversity, Function Roles and Environmental Adaptations, Second Edition

Author: Wen-Jun Li

Publisher: Frontiers Media SA

Published: 2019-11-14

Total Pages: 230

ISBN-13: 2889459330

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Actinobacteria are well-known producers of a vast array of secondary metabolites. Compared with actinobacteria from temperate habitats, the community structure, diversity, biological activities and mechanisms of environmental adaptation of those actinobacteria in special and extreme environments are relatively unstudied and unclear, and their functions and utilization are even less reported. These actinobacteria are potential new sources of novel natural products and functions for exploitation in medicine, agriculture, and industry. Recent advances in cultivation, DNA sequencing technologies and -omics methods have greatly contributed to the rapid advancement of our understanding of microbial diversity, taxonomy, function and they interactions with environment. Following the success of the Research Topic “Actinobacteria in special and extreme habitats: diversity, functional roles and environmental adaptations” organized in 2015, we are happy to launch a second edition. This Research Topic second edition, comprising reviews and original articles, highlights recent discoveries on rare actinobacterial diversity, phylogenomics, biological compounds, ecological function and environmental adaptations of actinobacteria in special and extreme habitats; and broadens our knowledge of actinobacterial diversity and their ecophysiological function.

Actinobacteria in Special and Extreme Habitats: Diversity, Function Roles and Environmental Adaptations
Actinobacteria in Special and Extreme Habitats: Diversity, Function Roles and Environmental Adaptations

Author: Sheng Qin

Publisher: Frontiers Media SA

Published: 2016-11-09

Total Pages: 231

ISBN-13: 2889450139

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Actinobacteria are highly diverse prokaryotes that are ubiquitous in soil, freshwater and marine ecosystems. Although various studies have focused on the ecology of this phylum, data are still scant on the diversity, abundance and ecology of actinobacteria endemic to special and extreme environments, such as gut, plant, alkaline saline soil, deep sea sediments, hot springs and other habitats. Actinobacteria are well-known producers of a vast array of secondary metabolites, many of which have useful applications in medicine and agriculture. Furthermore, actinobacteria also have diverse functions in different environments apart from antibiotic production. For example, actinobacteria are reported to contribute to the break-down and recycling of organic compounds. They play a significant role in fixation of nitrogen, improvement plant growth, biodegradation, bioremediation and environmental protection. Therefore, understanding the actinobacterial diversity and distribution in such special environments is important in deciphering the ecological roles of these microorganisms and for biotechnological bioprospecting. Recent advances in cultivation, DNA sequencing technologies and -omics (metagenomics, metaproteomics etc) methods have greatly contributed to the rapid advancement of our understanding of microbial diversity, function and they interactions with environment. Furthermore, comparative genomic studies can provide overall information about actinobacterial speciation, evolution, metabolism and environment adaptation mechanisms. This research topic comprising reviews and original articles highlights the recent advances regarding the unexpectedly diverse/rare group of actinobacteria with special selective isolation methods or culture-independent methods, as well as their biological activities, ecophysiologica function and mechanisms from diverse special and extreme environments.

Green Synthesis of Silver Nanomaterials
Green Synthesis of Silver Nanomaterials

Author: Kamel A. Abd-Elsalam

Publisher: Elsevier

Published: 2021-10-28

Total Pages: 798

ISBN-13: 0128245093

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Green Synthesis of Silver Nanomaterials illustrates how to biologically scale up silver nanoparticle synthesis. This book covers green synthesis of silver nanomaterials, via plants, agricultural waste, fungi, and microorganisms. Sections cover the synthesis and characterization of chemical and green synthesis, various types of silver nanomaterialism, the ability of different fungal species, such as filamentous fungi, to produce silver nanoparticles, the microbial synthesis of silver NMs, biosynthesis mechanisms, toxicity, fate and commercialization. As examples, greener pathways and mechanisms, toxicity of silver nanoparticles in aquatic life and in natural eco-systems, and strategies for the scaling up of green-synthesized nanomaterials are discussed. With the extended work in enhancing nanomaterials synthesis performance, and discovering their biomedical, environmental, and agricultural applications, it is hoped that the execution of these methods on a large scale and their industrial applications in different fields will take place in the near future. - Assesses the impact of a large variety of silver-based nanostructures in the biomedical, environmental and agri-food sectors - Discusses the major synthesis methods used for effectively processing plant-based silver nanoparticles - Outlines the potential and major challenges for adopting green synthesis methods on a mass scale

Exploration and Valorization of Natural Resources from Arid Zones
Exploration and Valorization of Natural Resources from Arid Zones

Author: Cristobal Noé Aguilar

Publisher: CRC Press

Published: 2024-08-23

Total Pages: 283

ISBN-13: 1003832210

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This new book analyzes the exploration and sustainable valorization of natural resources from the arid zones, putting special emphasis on the challenges that the industry faces in an era of sustainable development and ecological conservation programs. The volume describes the geographic and climatic characteristics as well as the natural resources from arid zones, divided into three main groups: a) microbiological resources as biotechnological tools and change agents to produce and/or obtain compounds with industrial or medicinal applications; b) plants as an important source of principal compounds or subproducts produced by natural adaptation to the extreme environmental conditions; and c) animal resources, which includes insects, animal residues, products or subproducts derived from animal sources, as well as poisons. The authors focus on the processes or bioprocesses used in the valorization and transformation of these three main groups for research purposes as well as for biotechnological processing to obtain important compounds for use in various industries. The information provided in this volume, Exploration and Valorization of Natural Resources from Arid Zones, can be used as reference for investigation, training, and education, and also as main tool in under- and postgraduate university education on the sustainable uses of resources from arid zones.

Streptomyces in Nature and Medicine
Streptomyces in Nature and Medicine

Author: D. A. Hopwood

Publisher: Oxford University Press

Published: 2007-02-03

Total Pages: 261

ISBN-13: 019515066X

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This is an insiders account of 50 years of genetic studies of the soil-inhabiting microbes that produce most of the antibiotics used to treat infections, as well as anti-cancer, anti-parasitic and immunosuppressant drugs. The book begins by describing how these microbes the actinomycetes were discovered in the latter part of the nineteenth century, but remained a Cinderella group until, in the 1940s, they shot to prominence with the discovery of streptomycin, the first effective treatment for tuberculosis and only the second antibiotic, after penicillin, to become a medical marvel. There followed a massive effort over several decades to find further treatments for infectious diseases and cancer, tempered by the rise of antibiotic resistance consequent on antibiotic misuse and over-use. The book goes on to describe the discovery of gene exchange in the actinomycetes in the context of the rise of microbial genetics in the mid-20th century, leading to determination of the complete DNA sequence of a model member of the group at the turn of the millennium. There follow chapters in which the intricate molecular machinery that adapts the organisms metabolism and development to life in the soil, including antibiotic production, is illuminated by the DNA blueprint. Then come an up-to-the minute account of the use of genetic engineering to make novel, hybrid, antibiotics, and a topical description of techniques to learn the roles of the thousands of genes in a genome sequence, throwing a powerful light on the biology of the organisms and their harnessing for increasing antibiotic productivity. In the final chapter we return to the mycobacteria that cause tuberculosis and leprosy, the first actinomycetes to be discovered, and how methodology, in part derived from the study of the streptomycetes, is being applied to understand and control these still deadly pathogens.

Recent Advancements in Microbial Diversity
Recent Advancements in Microbial Diversity

Author: Surajit de Mandal

Publisher: Academic Press

Published: 2020-06-02

Total Pages: 624

ISBN-13: 0128212667

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Microorganisms are a major part of the Earth's biological diversity. Although a lot of research has been done on microbial diversity, most of it is fragmented. This book creates the need for a unified text to be published, full of information about microbial diversity from highly reputed and impactful sources. Recent Advancements in Microbial Diversity brings a comprehensive understanding of the recent advances in microbial diversity research focused on different bodily systems, such as the gut. Recent Advancements in Microbial Diversity also discusses how the application of advanced sequencing technologies is used to reveal previously unseen microbial diversity and show off its function. - Gives insight into microbial diversity in different bodily systems - Explains novel approaches to studying microbial diversity - Highlights the use of omics to analyze the microbial community and its functional attributes - Discusses the techniques used to examine microbial diversity, including their applications and respective strengths and weaknesses

Actinobacteria
Actinobacteria

Author: Dharumadurai Dhanasekaran

Publisher: BoD – Books on Demand

Published: 2016-02-11

Total Pages: 401

ISBN-13: 9535122487

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This book presents an introductory overview of Actinobacteria with three main divisions: taxonomic principles, bioprospecting, and agriculture and industrial utility, which covers isolation, cultivation methods, and identification of Actinobacteria and production and biotechnological potential of antibacterial compounds and enzymes from Actinobacteria. Moreover, this book also provides a comprehensive account on plant growth-promoting (PGP) and pollutant degrading ability of Actinobacteria and the exploitation of Actinobacteria as ecofriendly nanofactories for biosynthesis of nanoparticles, such as gold and silver. This book will be beneficial for the graduate students, teachers, researchers, biotechnologists, and other professionals, who are interested to fortify and expand their knowledge about Actinobacteria in the field of Microbiology, Biotechnology, Biomedical Science, Plant Science, Agriculture, Plant pathology, Environmental Science, etc.

Microbial and Natural Macromolecules
Microbial and Natural Macromolecules

Author: Surajit Das

Publisher: Academic Press

Published: 2020-09-15

Total Pages: 864

ISBN-13: 0128200855

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Microbial and Natural Macromolecules: Synthesis and Applications brings together active scientists and academicians in the field who share updated information and research outcomes from global experts. Microbial macromolecular diversity, molecular composure, genetics, usability of advanced molecular tools and techniques for their study as well as their applicability are discussed with detailed research perspectives. - Illustrates fundamental discoveries and methodological advancements - Discusses novel functional attributes of macromolecules - Updates progress on microbial macromolecular research