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A Molecular Understanding for Sustainable Future
Recent studies on extremophiles have focused on thermophiles, microbes that thrive in high temperatures, while psychrophiles, which prefer cold environments, have received less attention. However, interest in cold-adapted microbes, especially those in polar regions, has increased significantly in recent decades. Given that much of Earth’s biosphere remains below 5°C, psychrophiles likely outnumber thermophiles. Oceans, covering over 75% of the planet, maintain deep water temperatures between 2–4°C. Antarctica offers both terrestrial and aquatic cold habitats, including ice that melts seasonally. Other cold ecosystems include permafrost, alpine soils, cold deserts, marine sediments, glaciers, and sea ice.
This book explores microbial diversity and adaptation in extreme polar environments, emphasizing their potential for biotechnological applications. It presents a comprehensive overview of molecular diversity and genetic adaptations in cold-loving microorganisms. The chapters detail representative microbial groups, their habitats, and survival strategies in frigid conditions. It is designed for scientists interested in how life persists in extreme cold.
To survive in such harsh climates, polar microbes have evolved specific regulatory mechanisms to respond to environmental stressors. Over the past decade, research has uncovered microbial responses to anthropogenic challenges like UV-B radiation, nutrient scarcity, desiccation, heavy metals, and temperature extremes. These studies have provided the basis for understanding gene regulatory pathways involved in morphological, physiological, and metabolic adaptations.
Despite advances, the molecular diversity and adaptation mechanisms of polar microbes remain poorly studied. Research is dispersed, and there is a need for a unified resource. This book aims to fill that gap by offering a complete, up-to-date atlas of microbial life in polar regions, highlighting their unique adaptations and potential for future scientific and industrial exploration.
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Prof. Alysson Wagner Fernandes Duarte is an Adjunct Professor at the Federal University of Alagoas, Arapiraca Campus. Graduated in Biological Sciences from the Federal University of Alagoas (2007), Master in Human Nutrition - UFAL (2009) and PhD in Biotechnology - USP (2015). He completed a Postdoctoral internship at the Microbial Resources Division Laboratory - at the Multidisciplinary Center for Chemical, Biological and Agricultural Research - UNICAMP in 2015-2016. Participated as a researcher in November/December 2013 of the XXXII OPERANTAR (Brazilian Antarctic Research Expedition). Has experience in Microbiology, with emphasis on Food Microbiology, Microbiology of the Antarctic environment, Microbial ecology, Taxonomic evaluation of yeasts, Enzyme prospecting using cultivable (culture-dependent) and non-cultivable microorganisms (metagenomic libraries), Construction of metagenomic libraries, Heterologous expression of microbial enzymes and experimental planning aiming at the optimization of processes and products.
Prof. Michel Rodrigo Zambrano Passarini, Graduated and completed his PhD in Genetics and Molecular Biology of Microorganisms at the State University of Campinas. He has vast research experience in biotechnology, emphasizing molecular and microorganism genetics. His current research areas are microbial ecology and microbial bioprospecting of extreme environments in the search for enzymes and metabolites of industrial interest applicable to the production of biofuel and degradation processes of environmental pollutants, as well as Metagenomic and metabarcoding. He has published more than 60 research articles and book chapters of international repute.
Prof. Josef Elster, is a full professor at the Centre for Polar Ecology at the University of South Bohemia. His research focuses on the Polyphasic diversity of phototrophic microorganisms from cold environments and their bioprospection potential. He has published over 200 research articles and completed many cryobiology-related projects. He is also a fellow and member of various scientific societies.
Dr Prashant Kumar Singh, works at the Department of Biotechnology, Mizoram University (A Central University), Pachhunga University College Campus, Aizawl, Mizoram. He completed his PhD degree from Banaras Hindu University, Varanasi, India. In his 14 years of research career, he has published more than 80 articles and book chapters and four books. Dr Singh has also been exposed to various national and international institutes. The Young Scientist Award, UGC and Start-up research grant award. Dr Singh and lifetime members of different scientific societies and reviewers of various peer-reviewed journals.
Dr Ajay Kumar, is a visiting scientist in the Agriculture Research Organization, Volcani Centre, Rishon Leziyon, Ministry of Agriculture and Rural Development, Israel. Dr Kumar completed his doctoral research from Botany, Institute of Science, Banaras Hindu University, Varanasi, India. He has published over seventy-five research papers, including research articles, review papers, and book chapters in leading International and National journals or books. He has a wide area of research experience, especially in Plant -Microbiome, Plant-Microbe Interactions, and microbe-mediated environmental contamination management. In addition, he is an invited member of the editorial committee of “The International Journal of Current Microbiology and Applied Sciences” and “Journal of Plant Science and Agriculture Research. He also reviews journals like PLOS ONE, Postharvest Biology and Technology; Agriculture, Ecosystem and Environment, Biological Control, Plant Biochemistry and Biotechnology, 3Biotech, etc. He has already edited several books with “Elsevier” like “PGPR Amelioration in Sustainable Agriculture”, “Climate Change and Agriculture Ecosystem”, “Role of Plant growth-promoting bacteria in sustainable Agriculture and Nanotechnology”, “Microbial Endophytes: Prospects for Sustainable Agriculture”, “Abatements of Environmental Pollutants” Fungi Bio-prospects in Sustainable Agriculture, Environment and Nanotechnology (volume 1-3) and several are under the production.
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