Catalogue Search | MBRL
Are you sure you want to remove the book from the shelf?
{{itemTitle}}
43,852
result(s) for
"Soil Microbiology"
Sort by:
Insecticides-soil microbiota interactions
This book provides information about the nontarget nature of selected soil enzymes which are implicated in soil fertility and health and the methods for their assay. It also shows how these soil enzymes are affected by two different pesticides, buprofezin and acephate, used both extensively and intensively in modern agriculture.
Book
The interplay between microbial communities and soil properties
In recent years, there has been considerable progress in determining the soil properties that influence the structure of the soil microbiome. By contrast, the effects of microorganisms on their soil habitat have received less attention with most previous studies focusing on microbial contributions to soil carbon and nitrogen dynamics. However, soil microorganisms are not only involved in nutrient cycling and organic matter transformations but also alter the soil habitat through various biochemical and biophysical mechanisms. Such microbially mediated modifications of soil properties can have local impacts on microbiome assembly with pronounced ecological ramifications. In this Review, we describe the processes by which microorganisms modify the soil environment, considering soil physics, hydrology and chemistry. We explore how microorganism–soil interactions can generate feedback loops and discuss how microbially mediated modifications of soil properties can serve as an alternative avenue for the management and manipulation of microbiomes to combat soil threats and global change.In this Review, Philippot et al. explore how soil microorganisms can affect the physical and chemical properties of soil and discuss the ecological and evolutionary consequences of these microbially driven shifts in soil properties. They also explore how microbially mediated changes in soil properties can be used to combat threats to soil health and other environmental challenges.
Journal Article
Microbial basis of Fusarium wilt suppression by Allium cultivation
Crop rotation and intercropping with
Allium
plants suppresses Fusarium wilt in various crops. However, the mechanisms underlying this phenomenon have not been fully elucidated. This study was designed to assess the role of microorganisms inhabiting
Allium
rhizospheres and antifungal compounds produced by
Allium
roots in Fusarium wilt suppression by
Allium
cultivation. Suppression of cucumber Fusarium wilt and the pathogen multiplication by
Allium
(Welsh onion and/or onion)-cultivated soils were eliminated by heat treatment at 60 °C, whereas those by Welsh onion-root extract were lost at 40 °C. The addition of antibacterial antibiotics eliminated the suppressive effect of Welsh onion-cultivated soil on pathogen multiplication, suggesting the contribution of antagonistic gram-negative bacteria to the soil suppressiveness. The Illumina MiSeq sequencing of 16S rRNA gene amplicons revealed that genus
Flavobacterium
was the predominant group that preferentially accumulated in
Allium
rhizospheres.
Flavobacterium
species recovered from the rhizosphere soils of these
Allium
plants suppressed Fusarium wilt on cucumber seedlings. Furthermore, confocal laser scanning microscopy revealed that
Flavobacterium
isolates inhibited the multiplication of the pathogen in soil. Taken together, we infer that the accumulation of antagonistic
Flavobacterium
species plays a key role in Fusarium wilt suppression by
Allium
cultivation.
Journal Article
Soil Biodiversity in Amazonian and Other Brazilian Ecosystems
The loss of biological diversity has become an increased concern over recent years and is now enshrined in international conventions. Most biodiversity in fact occurs in the soil. Soil organisms (especially bacteria, fungi and soil invertebrates) play a major role in the formation of soil structure and are primary agents of decomposition and are drivers of nutrient cycling, and hence agricultural production.This book reviews soil biodiversity in one of the key biodiversity hotspots of the world, i.e. the Amazon and nearby regions of Brazil. It covers both the tropical savannah and rain forests . The work reported is based on a project \"Conservation and Sustainable Management of Below-Ground Biodiversity\", executed by TSBF-CIAT with co-financing from the Global Environment Facility (GEF) and implementation support from the United Nations Environment Programme (UNEP). The book represents a major contribution to the literature and will interest those in biodiversity conservation, soil science and ecology and biodiversity conservation.
eBook
Framework for Developing Research Protocols for Evaluation of Microbial Hazards and Controls during Production that Pertain to the Application of Untreated Soil Amendments of Animal Origin on Land Used to Grow Produce that may be Consumed Raw
Application of manure or soil amendments of animal origin (untreated soil amendments; UTSAs) to agricultural land has been a long-standing practice to maintain or improve soil quality through addition of organic matter, nitrogen, and phosphorus. Much smaller quantities of these types of UTSAs are applied to land used for food crops than to land used for animal grain and forage. UTSAs can harbor zoonotic enteric pathogens that may survive for extended periods after application. Additional studies are needed to enhance our understanding of preharvest microbial food safety hazards and control measures pertaining to the application of UTSAs especially for land used to grow produce that may be consumed raw. This document is intended to provide an approach to study design and a framework for defining the scope and type of data required. This document also provides a tool for evaluating the strength of existing data and thus can aid the produce industry and regulatory authorities in identifying additional research needs. Ultimately, this framework provides a means by which researchers can increase consistency among and between studies and facilitates direct comparison of hazards and efficacy of controls applied to different regions, conditions, and practices.
Journal Article
The hidden half of nature : the microbial roots of life and health
\"Prepare to set aside what you think you know about yourself and microbes. Good health--for people and for plants--depends on Earth's smallest creatures. [This book] tells the story of our tangled relationship with microbes and their potential to revolutionize agriculture and medicine, from garden to gut\"--Dust jacket flap.
BOOK
Molecular approaches to soil, rhizosphere and plant microorganism analysis
There have been major developments in the field of plant-microbe interactions in recent years, due to newly developed techniques and the availability of genomic information. Molecular Plant-microbe Interactions explores these new discoveries, focusing primarily on the mechanisms controlling plant disease resistance, the cross-talk among the pathways involved and the strategies used by the pathogens to suppress these defences. By exploring developments in plant defences, pathogen's counter-defences and mutually beneficial plant-microbe interactions, this book will be useful for researchers and students in plant pathology and plant biology-related areas.
eBook