The Chemical Biology of Plant Biostimulants

The Chemical Biology of Plant Biostimulants

Author: Danny Geelen

Publisher: John Wiley & Sons

Published: 2020-02-05

Total Pages: 328

ISBN-13: 1119357241

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Introduces readers to the chemical biology of plant biostimulants This book brings together different aspects of biostimulants, providing an overview of the variety of materials exploited as biostimulants, their biological activity, and agricultural applications. As different groups of biostimulants display different bioactivity and specificity, advances in biostimulant research is illustrated by different examples of biostimulants, such as humic substance, seaweed extracts, and substances with hormone-like activities. The book also reports on methods used to screen for new biostimulant compounds by exploring natural sources. Combining the expertise of internationally-renowned scientists and entrepreneurs in the area of biostimulants and biofertilisers, The Chemical Biology of Plant Biostimulants offers in-depth chapters that look at: agricultural functions and action mechanisms of plant biostimulants (PBs); plant biostimulants from seaweed; seaweed carbohydrates; and the possible role for electron shuttling capacity in elicitation of PB activity of humic substances on plant growth enhancement. The subject of auxins is covered next, followed closely by a chapter on plant biostimulants in vermicomposts. Other topics include: exploring natural resources for biostimulants; the impact of biostimulants on whole plant and cellular levels; the impact of PBs on molecular level; and the use of use of plant metabolites to mitigate stress effects in crops. Provides an insightful introduction to the subject of biostimulants Discusses biostimulant modes of actions Covers microbial biostimulatory activities and biostimulant application strategies Offers unique and varied perspectives on the subject by a team of international contributors Features summaries of publications on biostimulants and biostimulant activity The Chemical Biology of Plant Biostimulants will appeal to a wide range of readers, including scientists and agricultural practitioners looking for more knowledge about the development and application of biostimulants.


Toward a Sustainable Agriculture Through Plant Biostimulants

Toward a Sustainable Agriculture Through Plant Biostimulants

Author: Youssef Rouphael

Publisher: MDPI

Published: 2021-02-22

Total Pages: 708

ISBN-13: 3036500286

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Over the past decade, interest in plant biostimulants has been on the rise, compelled by the growing interest of researchers, extension specialists, private industries, and farmers in integrating these products in the array of environmentally friendly tools to secure improved crop performance, nutrient efficiency, product quality, and yield stability. Plant biostimulants include diverse organic and inorganic substances, natural compounds, and/or beneficial microorganisms such as humic acids, protein hydrolysates, seaweed and plant extracts, silicon, endophytic fungi like mycorrhizal fungi, and plant growth-promoting rhizobacteria belonging to the genera Azospirillum, Azotobacter, and Rhizobium. Other substances (e.g., chitosan and other biopolymers and inorganic compounds) can have biostimulant properties, but their classification within the group of biostimulants is still under consideration. Plant biostimulants are usually applied to high-value crops, mainly greenhouse crops, fruit trees and vines, open-field crops, flowers, and ornamentals to sustainably increase yield and product quality. The global biostimulant market is currently estimated at about $2.0 billion and is expected to reach $3.0 billion by 2021 at an annual growth rate of 13%. A growing interest in plant biostimulants from industries and scientists was demonstrated by the high number of published peer-reviewed articles, conferences, workshops, and symposia in the past ten years. This book compiles several original research articles, technology reports, methods, opinions, perspectives, and invited reviews and mini reviews dissecting the biostimulatory action of these natural compounds and substances and beneficial microorganisms on crops grown under optimal and suboptimal growing conditions (e.g., salinity, drought, nutrient deficiency and toxicity, heavy metal contaminations, waterlogging, and adverse soil pH conditions). Also included are contributions dealing with the effect as well as the molecular and physiological mechanisms of plant biostimulants on nutrient efficiency, product quality, and modulation of the microbial population both quantitatively and qualitatively. In addition, identification and understanding of the optimal method, time, rate of application and phenological stage for improving plant performance and resilience to stress as well as the best combinations of plant species/cultivar × environment × management practices are also reported. We strongly believe that high standard reflected in this compilation on the principles and practices of plant biostimulants will foster knowledge transfer among scientific communities, industries, and agronomists, and will enable a better understanding of the mode of action and application procedures of biostimulants in different cropping systems.


Biostimulants in Agriculture II: Towards a Sustainable Future

Biostimulants in Agriculture II: Towards a Sustainable Future

Author: Maurizio Ruzzi

Publisher: Frontiers Media SA

Published: 2024-06-11

Total Pages: 1221

ISBN-13: 2832550177

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Modern agriculture needs to review and broaden its practices and business models, by integrating opportunities coming from different adjacent sectors and value chains, including the bio-based industry, in a fully circular economy strategy. Searching for new tools and technologies to increase crop productivity under optimal and sub-optimal conditions and to improve resources use efficiency is crucial to ensure food security while preserving soil quality, microbial biodiversity, and providing business opportunities for farmers. Biostimulants based on microorganisms or organic substances obtained from renewable materials represent a sustainable, efficient technology or complement to synthetic counterparts, to improve nutrient use efficiency and secure crop yield stability. Under the new European Union Regulation 2019/1009, plant biostimulants were defined based on four agricultural functional claims as follows: Plant biostimulants are products that stimulate plant nutrition processes independently of the product's nutrient content with the sole aim of improving one or more of the following characteristics of the plant and/or the plant rhizosphere: 1) nutrient use efficiency, 2) tolerance resistance to (a)biotic stress, 3) quality characteristics or 4) availability of confined nutrients in the soil or rhizosphere’. Many diverse natural substances and chemical derivatives of natural or synthetic compounds, as well as beneficial microorganisms, are cataloged as plant biostimulants including i) humic substances, ii) plant or animal-based protein hydrolysates, iii) macro and micro-algal extracts, iv) silicon, v) arbuscular mycorrhizal fungi (AMF) and vi) plant growth-promoting rhizobacteria (PGPR) belonging to the Azotobacter, Azospirillum and Rhizobium genera.


Biostimulants in Plant Protection and Performance

Biostimulants in Plant Protection and Performance

Author: Azamal Husen

Publisher: Elsevier

Published: 2024-03-22

Total Pages: 424

ISBN-13: 0443158851

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Biostimulants (a diverse class of compounds including substances or microorganisms) are helpful in sustainable plants growth and development. They accelerate plant growth, yield, and chemical composition even under unfavorable conditions. The main biostimulants are nitrogen-containing compounds, humic materials, some specific compounds released by microbes, plants, and animals, various seaweed extracts, bio-based nanomaterials, phosphite, silicon, and so on. Additionally, new generation products and bioproducts are being developed for sustainable plant growth and protection. Some research works in the area of biotechnology and nanobiotechnology have shown improved sustainable plant growth and production. The protective roles of biostimulants are varied depends on the compound and plant species. Exposure of biostimulants have shown accelerated plants growth and developmental processes for instance, manage stomatal conductance and rate of transpiration, and increase rate of photosynthesis etc. They also increased crop plants immune systems against the adverse situation. Thus, use of innovations of new generation biostimulants also enhance plant production systems, through a significant reduction of synthetic chemicals such as pesticides and fertilizers. Moreover, bioinoculants commercial products obtained from seaweed extract, humic acids, amino acids, fulvic acids, and some microbial inoculants have shown their potential role in adventitious root induction in plants. Microbial inoculants or microbial-based biostimulants, as a promising and eco-friendly technology, can be widely used to address environmental concerns and fulfill the need for developing sustainable or modern agriculture practices. They have great potential to elicit plant tolerance to various climate change-related stresses and thus enhance plant growth and overall performance-related features. However, for successful implementation biostimulants-based agriculture in the field under changing climate conditions, an understanding of plant functions and biostimulants interaction or action mechanisms coping with various abiotic as well as biotic stresses at the physicochemical, metabolic, and molecular levels is required. Mycorrhizae are beneficial fungi that form symbiotic associations with plants and aid in plant development, disease resistance, and soil health is well established. Similarly, phyllospheric microbiome are known to possess different plant growth promotion attributes like nitrogen fixation, phosphate solubilization, biocontrol activity, and increase plant resistance towards abiotic stresses. The plant growth promotion traits possessed by these phyllospheric microbiota can be judiciously harbored for phyllospheric and rhizospheric engineering. The engineered phyllospheric and rhizospheric microbiome can increase the plant growth and productivity, thereby, can act as a driving force for increasing the agricultural production in a sustainable manner. Taken together, this book aims to contribute to the recent understanding associated with the various role and application of biostimulants on different plant for their sustainable growth and management. Discusses our current understanding of, and advances in, biostimulants, along with their application in plants growth performance and overall management Explores new techniques, new generation products, and bioproducts Highlights the role of seaweed extract, humic acids, protein hydrolysates, amino acids, melatonin, paramylon, fulvic acids, microbial inoculants (phyllospheric and rhizospheric), and more


Microbial Biostimulants for Sustainable Agriculture and Environmental Bioremediation

Microbial Biostimulants for Sustainable Agriculture and Environmental Bioremediation

Author: Inamuddin

Publisher: CRC Press

Published: 2022-06-29

Total Pages: 291

ISBN-13: 1000600521

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Today, the agriculture industry is confronted with simultaneous issues of how to fully embrace mass production of safer food in terms of both quality and quantity. Most industries are concerned with avoiding significant levels of soil pollution and environmental threats as a result of the excessive and harmful use of synthetic products on crops. Therefore, there is a need to adopt sustainable technological innovations that can ensure the sustainability of agricultural production systems. Microbial Biostimulants for Sustainable Agriculture and Environmental Bioremediation discusses the benefits, challenges, and practical applications of eco-friendly biotechnological techniques using biostimulants derived from beneficial microorganisms. The chapters cover the use of these organisms to increase crop production, enhance soil fertility and maintain soil health, create crop and plant tolerance to different abiotic stressors, release required nutrients to the soil, increase resistance to plant pathogens/pests, improve nutrient use efficiency of crops, and rejuvenate polluted environments. FEATURES Explores the physiological, morpho-anatomical, and biochemical molecular plant rejoinders involved in stimulating crop productivity Provides information on the physiological, cellular, and molecular modes of action underlying microbial biostimulant interfaces Summarizes methods and approaches for executing microbial stimulant technology Outlines numerous environmental management and remediation strategies This book is an ideal resource for researchers, engineers, and academics working in soil science, crop science, water remediation, microbiology, and biotechnology.


Microbial Biostimulants

Microbial Biostimulants

Author: Faheem Ahmad

Publisher: CRC Press

Published: 2024-10-03

Total Pages: 479

ISBN-13: 1040036570

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This new volume explores the field of microbial biostimulants, a new and emerging field of plant study that emphasizes the benefit of microbes for plants. Microbial biostimulants can have a positive influence on plant health and growth, enhancing agricultural yield and improving resistance to negative environmental changes with zero harmful discharges. This book, Microbial Biostimulants: Biorational Pesticides for Management of Plant Pathogens, explores how microbial-based biopesticides can be used for managing pests and plant diseases as well as for the promotion of growth. It looks at the advantages of employing microbial biostimulants over other pest and disease control methods. It also looks at the application of microbial biostimulants as a response to the modern agricultural need for increased productivity and plant health. This book brings together an extensive collection of information on beneficial microorganisms, including newly introduced microorganisms, their biological activities and specificity, resistance mechanisms to pests, formulation, application in agricultural practices, etc. Key features: Provides a roadmap for using microbial biostimulant practices for pest and disease control as a sustainable approach in agriculture Covers the essential aspects of biorational lines for crop stress management Looks at the use of microbial biostimulants for management of specific diseases, including root-knot disease, various soil-borne diseases, etc. Considers the role of rhizobacteria in plant disease management Microbial Biostimulants: Biorational Pesticides for Management of Plant Pathogens will be extremely useful for students, academicians, researchers, and policymakers in the field of food security and diverse disciplines of agricultural sciences.


Structural and Functional Analysis of Extracts in Plants

Structural and Functional Analysis of Extracts in Plants

Author: Stefania Lamponi

Publisher: Mdpi AG

Published: 2021-10-22

Total Pages: 494

ISBN-13: 9783036518954

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Structural and Functional Analysis of Extracts in Plants collects 1 editorial, 3 reviews, and 26 research articles reporting recent research findings which cover several aspects of plant-derived bioactive compounds, to correlate extraction techniques with the chemical composition of extracts and their bioactivity for identifying molecules that might be used as active substances in a wide variety of areas. This book is a valuable resource for members of the scientific community wishing to further explore plants and the therapeutic applications of their bioactive compounds. It will appeal to scholars, teachers and scientists involved in plant product research, and facilitate the development of innovative new drugs.


Biostimulants in Plant Science

Biostimulants in Plant Science

Author: Seyed Mahyar Mirmajlessi

Publisher: BoD – Books on Demand

Published: 2020-07-08

Total Pages: 162

ISBN-13: 1838801618

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Natural-based substances, ‘plant biostimulants’, have been considered as environmentally friendly alternatives to agrichemicals. Biostimulants may comprise microbial inoculants, humic acids, fulvic acids, seaweed extracts, etc. These biostimulants have biopesticide and biostimulant utilities. Elucidations on direct or microbially mediated functions of biostimulants are presented in this book to illustrate fundamental principles and recent applications underlying this technology. This book has encompassed a cross-section of topics on different concepts to describe effective strategies by using these substances and/or beneficial microorganisms within sustainable agroecosystems. I sincerely hope that the information provided adequately reflects the objectives of this compilation. “One of the first conditions of happiness is that the link between man and nature shall not be broken.” Leo Tolstoy