Download or read book Soil microbiome community and functional succession mechanism driven by different factors in agricultural ecology written by Bin Huang and published by Frontiers Media SA. This book was released on 2023-09-29 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Soil Microbiomes for Sustainable Agriculture written by Ajar Nath Yadav and published by Springer Nature. This book was released on 2021-06-28 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book encompasses current knowledge of soil microbiomes and their potential biotechnological application for plant growth, crop yield, and soil health under the natural as well as harsh environmental conditions for sustainable agriculture. The microbes are ubiquitous in nature. The soil is a natural hotspot of the soil microbiome. The soil microbiome plays a critical role in the maintenance of global nutrient balance and ecosystem functioning. The soil microbiomes are associated with plant ecosystems through the intense network of plant–microbe interactions. The microbes present in bulk soil move toward the rhizospheric region due to the release of different nutrients by plant systems. The rhizospheric microbes may survive or proliferate in rhizospheric zone depending on the extent of influences of the chemicals secreted into the soil by roots. The root exudates contain the principal nutrients factors (amino acids, glucose, fructose, and sucrose). The microbes present in rhizospheric region have capabilities to fix atmospheric nitrogen, produce different phytohormones, and solubilize phosphorus, potassium, and zinc. The plant systems take these nutrients for their growth and developments. These soil and plant associated microbes also play an important role in protection of plants from different plant pathogenic organisms by producing different secondary metabolites such as ammonia, hydrogen cyanide, siderophores, and hydrolytic enzymes. The soil microbiomes with plant growth-promoting (PGP) attributes have emerged as an important and promising tool for sustainable agriculture. The soil microbiomes promote the plant growth and enhance the crop yield and soil fertility via directly or indirectly different plant growth-promoting mechanism. The soil microbes help the plant for adaptation in extreme habitats by mitigating the abiotic stress of high/low temperatures, hypersalinity, drought, and acidic/alkaline soil. These PGP microbes are used as biofertilizers/bioinoculants to replace the harmful chemical fertilizers for sustainable agriculture and environments. The aim of the book “Soil Microbiomes for Sustainable Agriculture” is to provide the recent advances in mechanisms of plant growth promotion and applications of soil microbiomes for mitigation of different abiotic stresses in plants. The book is useful to scientists, researchers, and students related to microbiology, biotechnology, agriculture, molecular biology, environmental biology, and related subjects.

Download or read book Unravelling the Soil Microbiome written by Rama Kant Dubey and published by Springer. This book was released on 2019-05-24 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores the significance of soil microbial diversity to understand its utility in soil functions, ecosystem services, environmental sustainability, and achieving the sustainable development goals. With a focus on agriculture and environment, the book highlights the importance of the microbial world by providing state-of-the-art technologies for examining the structural and functional attributes of soil microbial diversity for applications in healthcare, industrial biotechnology, and bioremediation studies. In seven chapters, the book will act as a primer for students, environmental biotechnologists, microbial ecologists, plant scientists, and agricultural microbiologists. Chapter 1 introduces readers to the soil microbiome, and chapter 2 discusses the below ground microbial world. Chapter 3 addresses various methods for exploring microbial diversity, chapter 4 discusses the genomics methods, chapter 5 provides the metaproteomics and metatranscriptomics approaches and chapter 6 details the bioinformatics tools for soil microbial community analysis, and chapter 7 concludes the text with future perspectives on further soil microbial uses and applications.

Download or read book Microbial Ecology in Sustainable Agroecosystems written by Tanya E. Cheeke and published by CRC Press. This book was released on 2012-07-17 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: While soil ecologists continue to be on the forefront of research on biodiversity and ecosystem function, there are few interdisciplinary studies that incorporate ecological knowledge into sustainable land management practices. Conventional, high fossil-fuel input-based agricultural systems can reduce soil biodiversity, alter soil community structure and nutrient cycling, and lead to greater dependence on energy-intensive practices. Microbial Ecology in Sustainable Agroecosystems brings together soil ecologists, microbial ecologists, and agroecologists working globally to demonstrate how research in soil ecology can contribute to the long-term sustainability of agricultural systems. The book identifies five key areas of research that can be combined to support and direct sustainable land management practices: agriculture, biodiversity, ecosystem services, integrated soil ecology research, and policy. Topics include: A broad range of soil microbial processes in terms of the importance of microbial heterogeneity Inputs by soil microorganisms into wheat-farming systems The importance of arbuscular mycorrhizal fungi in making nutrients more available to crops The benefits and environmental problems associated with the use of crops genetically modified with Bacillus thuringiensis The incorporation of soil ecological or microbial ecological theory into agricultural practice to improve agricultural productivity and sustainability Challenges in sustainable agricultural research and the need for coalescing new avenues of research in agriculture and soil ecology The contributors range from long-time ecological researchers to graduate students and early career scientists, representing a wide spectrum of experience, ages, diversity, and research interests in this area. They cover the diversity and complexity of microbial activity and interactions in soil systems and the many ways in which microorganisms may be manipulated and managed to improve the functions of crop rhizospheres and thereby maximize crop yields and overall productivity. These recommendations can be used to direct and influence agricultural and environmental policy and guide future research in sustainable agricultural systems management.

Download or read book Environmental Factors Shaping the Soil Microbiome written by and published by . This book was released on 2021-12-13 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Rhizosphere Microbes written by Sushil Kumar Sharma and published by Springer Nature. This book was released on 2021-01-20 with total page 689 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plants create a dynamic micro-biosphere in the soil, around the roots, called as ‘rhizosphere’, which harbors diverse number of microorganisms for sustaining their growth and development. A soil with diverse and multi-traits microbial communities is considered healthy to enhance crop productivity. In the last decades, rhizosphere biology has gained attention due to unraveling of new mechanisms, processes and molecules in the rhizosphere that contributes towards the promotion of plant productivity. The rhizospheric microbes and associated processes are being utilized for harnessing potential of soils in effective and sustainable functioning in the agro-ecosystems. Broadly, the book discusses rhizospheric microbes and their role in modulating functions of soil and crop plant. Specifically, it highlights conventional and modern aspects of rhizosphere microbes such as – microbiome in the rhizosphere, microbes as an indicator and promoter of soil health, rhizosphere microbes as biofertilizer, biostimulator and biofortifyer, microbial signaling in the rhizosphere, recent tools in deciphering rhizobiome, and regulatory mechanisms for commercialization of biofertilizer, biopesticide and biostimulator. The book is useful for agriculture scientist, biotechnologist, plant pathologist, mycologist, and microbiologist, farming community, scientist of R&D organization, as well as teaching community, researcher and student and policy maker.

Download or read book Understanding and Utilising Soil Microbiomes for a More Sustainable Agriculture written by Kari E. Dunfield and published by Burleigh Dodds Agricultural Sc. This book was released on 2024-08-27 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection summarises the wealth of recent research in understanding the fundamental importance of soil microbiomes in optimising soil and crop health. The book reviews advances in analytical techniques, the composition and dynamics of soil microbial communities and how they can be enhanced to deliver a range of ecosystem services.

Download or read book Microbial Interventions in Agriculture and Environment written by Dhananjaya Pratap Singh and published by Springer. This book was released on 2019-11-25 with total page 573 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microbial communities and their functions play a crucial role in the management of ecological, environmental and agricultural health on the Earth. Microorganisms are the key identified players for plant growth promotion, plant immunization, disease suppression, induced resistance and tolerance against stresses as the indicative parameters of improved crop productivity and sustainable soil health. Beneficial belowground microbial interactions with the rhizosphere help plants mitigate drought and salinity stresses and alleviate water stresses under the unfavorable environmental conditions in the native soils. Microorganisms that are inhabitants of such environmental conditions have potential solutions for them. There are potential microbial communities that can degrade xenobiotic compounds, pesticides and toxic industrial chemicals and help remediate even heavy metals, and thus they find enormous applications in environmental remediation. Microbes have developed intrinsic metabolic capabilities with specific metabolic networks while inhabiting under specific conditions for many generations and, so play a crucial role. The book Microbial Interventions in Agriculture and Environment is an effort to compile and present a great volume of authentic, high-quality, socially-viable, practical and implementable research and technological work on microbial implications. The whole content of the volume covers protocols, methodologies, applications, interactions, role and impact of research and development aspects on microbial interventions and technological outcomes in prospects of agricultural and environmental domain including crop production, plan-soil health management, food & nutrition, nutrient recycling, land reclamation, clean water systems and agro-waste management, biodegradation & bioremediation, biomass to bioenergy, sanitation and rural livelihood security. The covered topics and sub-topics of the microbial domain have high implications for the targeted and wide readership of researchers, students, faculty and scientists working on these areas along with the agri-activists, policymakers, environmentalists, advisors etc. in the Government, industries and non-government level for reference and knowledge generation.

Download or read book Microbial Community Assembly in an Evolving Ecosystem written by Francisco Dini-Andreote and published by . This book was released on 2016 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Environmental Gradients Drive Biogeographic Patterns in Soil Microbial Communities written by Jieyun Wu and published by . This book was released on 2018 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the central goals of the field of microbial biogeography is to better understand spatial patterns of microbial community diversity and how communities respond to gradients in environmental conditions, be they natural or anthropogenic in origin. The main aim of this thesis was to investigate how gradients in environmental conditions (i.e., across a mountain elevational gradient and across different land-use types) affect soil microbial community structure, diversity and functional traits, and to assess how these communities respond to differing environmental variables, using next-generation sequencing technologies. Elevation gradients are commonly used to explore impact climate impacts on biological communities since declines in temperature with increased elevation can generate substantial climate gradients over small spatial scales. However, inconsistent spatial patterns in soil bacterial community structure observed across elevation gradients imply that communities are affected by a variety of factors at different spatial scales. Here, I investigated the biogeography of soil bacteria across broad (i.e., a ~ 1500 m mountain elevation gradient) and fine sampling scales (i.e., both aspects of a mountain ridge) using 16S rRNA gene sequencing. Across equivalent distances, variation in bacterial community composition changed more with variation in site aspect than elevation. Bacterial community composition and richness were most strongly associated with soil pH, despite the large variability in multiple soil climate variables across the site. These findings highlight the need to incorporate knowledge of multiple factors, including site aspect and soil pH for the appropriate use of elevation gradients as a proxy to explore the impacts of climate change on microbial community composition. Similar to , inconsistent elevational patterns in soil fungal community diversity suggest that these communities are driven by a complex underlying mechanism. Thus, to enhance understanding of whether distinct biogeographic patterns can be distinguished between different microorganisms and how such gradients influence the potential interactions among individual taxa, I assessed variation in the co-occurrence of different fungal taxa at different elevations along the aforementioned mountain ridge, using fungal internal transcribed spacer (ITS1) DNA sequencing. Fungal community composition changed significantly along the gradient, and their co-occurrences were less frequent with increasing elevation. Such changes with elevation were associated with soil nutrient concentrations, likely driven by the relative ability of different taxa to compete for nutrients at different environmental concentrations. Evidence of nutrient-driven shifts in fungal community diversity and function in soil will enhance our understanding of underground nutrient cycling and the likely impacts of climate change and agricultural disturbance on soil microbial communities. To further explore gradients in the functional potential of soil bacterial communities along an elevation gradient, I devised a method to 'infer' metagenomics data from bacterial 16S rRNA gene sequences. I evaluated the applicability of my 'inferred metagenomics' approach, by comparing bacterial community composition derived from the original bacterial data to communities derived only from the 400 taxa for which genomic information is available. The results generated from these two datasets were highly similar, suggesting that the subset of 'inferred' community was largely reflective of that of the wider environmental community. Further analysis indicates that bacteria with larger genome size appear to prevail across the elevation gradient, suggesting that microorganisms might successfully cope with harsh or various environmental conditions by retaining a larger burden of potential genes and related functions. These findings highlight the potential for using inferred genomic information, based on bacterial 16S rRNA gene data, to generate a general functional trait-based picture of microbial biogeographical patterns. Apart from studies on elevational patterns of soil microbial communities, many other environmental gradients impact distributions of bacterial communities, including gradients of anthropogenic disturbance. Therefore, I studied how pastoral land management practices affect soil bacteria, both in agricultural soils and adjacent forest fragments along 21 transects bisecting pasture-forest boundaries. Decreased compositional dispersion of bacterial communities in the grazed pasture soils resulting in a net loss of diversity caused by community homogenisation after forest-to-pasture conversion. Additionally, a greater richness of pastureonly taxa for sites with a fence on the boundary between the two land uses revealed that boundary fences play an important role in protecting the integrity of soil bacterial communities in forests surrounded by agricultural land via restricting livestock invasion. The observed variation in bacterial community richness and composition was most related to changes in soil physicochemical variables commonly associated with agricultural fertilisation. Overall, my findings demonstrate clear, and potentially detrimental, effects of agricultural disturbance on bacterial communities in forest soils adjacent to pastoral land. This thesis reports the findings of a comprehensive evaluation of the impact of different environmental gradients on soil microbial community composition and functional potential, encompassing sample data collected across different spatial scales and land use types, as well as between different microbial phylogenetic groups. These results confirm that spatial patterns in both bacterial and fungal community structure are driven by various interacting environmental variables related with natural gradients or agricultural disturbances.

Download or read book Interactions in Soil Promoting Plant Growth written by John Dighton and published by Springer. This book was released on 2016-09-18 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book investigates soil ecology and biodiversity for its ability to maintain a balance of beneficial organisms to support plant growth. This subject is discussed by a group of international authors in natural, agricultural and urban systems. The importance of biodiversity per se and, specifically, the feedbacks between the plant and soil biota in mediating soil function are emphasized. Examples are selected from allelopathy and invasive plant species along with the, hitherto overlooked, role of viruses in soil. The book is intended to provide a framework for a holistic understanding of the essential role of soil organisms in promoting plant growth.

Download or read book Microbes in Land Use Change Management written by Jay Shankar Singh and published by Elsevier. This book was released on 2021-08-20 with total page 611 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microbes in Land Use Change Management details the various roles of microbial resources in management of land uses and how the microbes can be used for the source of income due to their cultivation for the purpose of biomass and bioenergy production. Using various techniques, the disturbed and marginal lands may also be restored eco-friendly in present era to fulfil the feeding needs of mankind around the globe. Microbes in Land Use Change Management provides standard and up to date information towards the land use change management using various microbial technologies to enhance the productivity of agriculture. Needless to say that Microbes in Land Use Change Management also considers the areas including generation of alternative energy sources, restoration of degraded and marginal lands, mitigation of global warming gases and next generation -omics technique etc. Land use change affects environment conditions and soil microbial community. Microbial population and its species diversity have influence in maintaining ecosystem balance. The study of changes of microbial population provides an idea about the variation occurring in a specific area and possibilities of restoration. Meant for a multidisciplinary audience Microbes in Land Use Change Management shows the need of next-generation omics technologies to explore microbial diversity. Describes the role of microbes in generation of alternative source of energy Gives recent information related to various microbial technology and their diversified applications Provides thorough insight in the problems related to landscape dynamics, restoration of soil, reclamation of lands mitigation of global warming gases etc. eco-friendly way using versatility of microbes Includes microbial tools and technology in reclamation of degraded, disturbed and marginal lands, mitigation of global warming gases

Download or read book The Social Biology of Microbial Communities written by Institute of Medicine and published by National Academies Press. This book was released on 2013-01-10 with total page 633 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beginning with the germ theory of disease in the 19th century and extending through most of the 20th century, microbes were believed to live their lives as solitary, unicellular, disease-causing organisms . This perception stemmed from the focus of most investigators on organisms that could be grown in the laboratory as cellular monocultures, often dispersed in liquid, and under ambient conditions of temperature, lighting, and humidity. Most such inquiries were designed to identify microbial pathogens by satisfying Koch's postulates.3 This pathogen-centric approach to the study of microorganisms produced a metaphorical "war" against these microbial invaders waged with antibiotic therapies, while simultaneously obscuring the dynamic relationships that exist among and between host organisms and their associated microorganisms-only a tiny fraction of which act as pathogens. Despite their obvious importance, very little is actually known about the processes and factors that influence the assembly, function, and stability of microbial communities. Gaining this knowledge will require a seismic shift away from the study of individual microbes in isolation to inquiries into the nature of diverse and often complex microbial communities, the forces that shape them, and their relationships with other communities and organisms, including their multicellular hosts. On March 6 and 7, 2012, the Institute of Medicine's (IOM's) Forum on Microbial Threats hosted a public workshop to explore the emerging science of the "social biology" of microbial communities. Workshop presentations and discussions embraced a wide spectrum of topics, experimental systems, and theoretical perspectives representative of the current, multifaceted exploration of the microbial frontier. Participants discussed ecological, evolutionary, and genetic factors contributing to the assembly, function, and stability of microbial communities; how microbial communities adapt and respond to environmental stimuli; theoretical and experimental approaches to advance this nascent field; and potential applications of knowledge gained from the study of microbial communities for the improvement of human, animal, plant, and ecosystem health and toward a deeper understanding of microbial diversity and evolution. The Social Biology of Microbial Communities: Workshop Summary further explains the happenings of the workshop.

Download or read book Linking Restoration and Ecological Succession written by Lawrence R. Walker and published by Springer Science & Business Media. This book was released on 2007-10-16 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: This innovative book integrates practical information from restoration projects around the world with the latest developments in successional theory. It recognizes the critical roles of disturbance ecology, landscape ecology, ecological assembly, invasion biology, ecosystem health, and historical ecology in habitat restoration. It argues that restoration within a successional context will best utilize the lessons from each of these disciplines.

Download or read book Principles and Applications of Soil Microbiology written by Terry Gentry and published by Elsevier. This book was released on 2021-06-06 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by leading experts in their respective fields, Principles and Applications of Soil Microbiology 3e, provides a comprehensive, balanced introduction to soil microbiology, and captures the rapid advances in the field such as recent discoveries regarding habitats and organisms, microbially mediated transformations, and applied environmental topics. Carefully edited for ease of reading, it aids users by providing an excellent multi-authored reference, the type of book that is continually used in the field. Background information is provided in the first part of the book for ease of comprehension. The following chapters then describe such fundamental topics as soil environment and microbial processes, microbial groups and their interactions, and thoroughly addresses critical nutrient cycles and important environmental and agricultural applications. An excellent textbook and desk reference, Principles and Applications of Soil Microbiology, 3e, provides readers with broad, foundational coverage of the vast array of microorganisms that live in soil and the major biogeochemical processes they control. Soil scientists, environmental scientists, and others, including soil health and conservation specialists, will find this material invaluable for understanding the amazingly diverse world of soil microbiology, managing agricultural and environmental systems, and formulating environmental policy. - Includes discussion of major microbial methods, embedded within topical chapters - Includes information boxes and case studies throughout the text to illustrate major concepts and connect fundamental knowledge with potential applications - Study questions at the end of each chapter allow readers to evaluate their understanding of the materials

Download or read book Fantastic plants and soil microorganisms The secrets of interaction mechanisms in a warmer world written by Xin Sui and published by Frontiers Media SA. This book was released on 2023-08-16 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Soil Protists written by Stefan Geisen and published by Sudwestdeutscher Verlag Fur Hochschulschriften AG. This book was released on 2015-10-13 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Protists are by far the most diverse and abundant eukaryotes in soils. Nevertheless, very little is known about individual representatives, the diversity and community composition and ecological functioning of these important organisms. For instance, soil protists are commonly lumped into a single functional unit, i.e. bacterivores. This work tackles missing knowledge gaps on soil protists and common misconceptions using multi-methodological approaches including cultivation, microcosm experiments and environmental sequencing. In a first part, several new species and genera of amoeboid protists are described showing their immense unknown diversity. In the second part, the enormous complexity of soil protists communities is highlighted using cultivation- and sequence-based approaches. In the third part, the present of diverse mycophagous and nematophagous protists are shown in functional studies on cultivated taxa and their environmental importance supported by sequence-based approaches. This work is just a start for a promising future of soil Protistology that is likely to find other important roles of these diverse organisms.