Download or read book Mycorrhizal Biotechnology written by Devarajan Thangadurai and published by CRC Press. This book was released on 2010-06-16 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: Several studies have demonstrated that mycorrhizal associations play vital role in plant nutrition. They greatly increase the efficiency of nutrient and water uptake, enhance resistance to pathogens, and buffer plant species against several environmental stresses and drought resistance. Mycorrhizae also improve plant growth and survival in soils co

Download or read book Microbial Activity in the Rhizosphere written by Krishna Gopal Mukerji and published by Springer Science & Business Media. This book was released on 2006-03-22 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: The rhizosphere is a very complex environment in which the effects of the plant on soil microorganisms and the effects of the microorganisms on the plant are interacting and are interdependent. Plant root exudates and breakdownproducts attract microbes and feed them and, in turn, the plants often bene?t from the microbes. Interactions among microorg- ismsandplantrootsareessentialfornutritionalrequirementsoftheplant. Plant growth, development and productivity are largely dependent on the soil environment in the root region rhizosphere. The new techniques of studying the rhizosphere enables us to get a much better understanding of the dynamics of the rhizosphere population, such rhizosphere studies beingofinteresttoagriculturists,soilbiologists,chemists,microbiologists andmolecularbiologists. The rhizosphere microbes in?uence the root environment in several ways. They may change the oxidation-reduction potential, in?uence the availabilityofmoistureandnutrients,producegrowthinhibitingorgrowth promoting substances in the form of exudates, provide competition and possiblyinducemanyothereffects.Mycorrhizalassociationsarebene?cial in mineral uptake and in increasing root surface area for effective ion absorption. Antagonism,competitionandsynergisminsoilandtherhizoplane(r- zosphere) are the most important microbial interactions to consider in the study of rhizosphere biology. With the growing information on the production of growth regulators, competitiveness of the microbes in the rhizosphere, microsymbionts, and other factors, their effect upon plant growth will become more evident. Experiments on the introduction of microbes or their products in the rhizosphere will help to improve our understandingofthebiologyoftherhizosphere.

Download or read book Biotechnology of Va Mycorrhiza written by Dr. Sudhir Chandra and published by New India Publishing. This book was released on 2006 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: knowledge on mycorrhiza-plant relationship has grown somewhat with slow pace until about 1970 when there was a sudden upsurge of interest on a specialized type of endomycorrhiza-vesicular arbuscular mycorrhiza (VA Mycorrhiza). The prodigious research made during last three decades clearly established its widespread occurrence in various plant species and under different agro-climatic conditions covering broad ecological range including deserts, forest and mangroves. It was also established that this symbiotic association benefits the plants through enhanced nutrient uptake, biological control of root pathogens, and synergistic interaction with nitrogen fixing microorganisms, hormone production and drought resistance. In view of its utility to plants, this bio-tool has now attracted the attention of microbiologist. agronomist, horticulturist and foresters at global level.

Download or read book Impact of Arbuscular Mycorrhizas on Sustainable Agriculture and Natural Ecosystems written by Silvio Gianiazzi and published by Birkhäuser. This book was released on 2012-12-06 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, prepared by participants of the European network COST ACTION 810 (1989-93) is the outcome of a meeting held in Switzerland (Einsiedeln, September 29 to October 2, 1993) on the "Impact of arbuscular mycorrhizas on sustainable agriculture and natural ecosystems". COST(Cooperation Scientifique et Technique) Networks were created in 1971 by the Commission of European Communities, and later enlarged to include non-European Member States, to promote pre-competitive scientific and technical research in fields of common interest. During the eighties, COST ACTIONS were launched in bio technological fields, including the network on arbuscular mycorrhizas. Arbuscular mycorrhizas are a universally found symbiosis between plants and certain soil fungi and essential components of soil-plant systems. They act as a major inter face by influencing or regulating resource allocation between abiotic and biotic components of the soil-plant system. Arbuscular mycorrhizas are involved in many key ecosystem processes including nutrient cycling and conservation of soil struc ture, and have been shown to improve plant health through increased protection against abiotic and biotic stresses. Sustainability can be defined as the successful management of resources to satisfy changing human needs while maintaining or enhancing the quality of the environ ment and conserving resources. Increasing environmental degradation and instability, due to anthropogenic activities and in particular the increasing fragility of the soil resource, has led to an increased awareness of the need to develop practices resulting in more sustainable natural and agroecosystems.

Download or read book Arbuscular Mycorrhizas written by Yoram Kapulnik and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent years have brought an upsurge of interest in the study of arbuscular mycorrhizal (AM) fungi, partly due to the realization that the effective utilization of these symbiotic soil fungi is likely to be essential in sustainable agriculture. Impressive progress has been made during the last decade in the study of this symbiosis largely as a result of increasing exploitation of molecular tools. Although early emphasis was placed on the use of molecular tools to study physiological processes triggered by the symbiosis, such as expression of symbiosis-specific polypeptides and modulation of host defences, other applications await. It was obvious to us that gathering leaders in the field to summarize these topics and point out research needs was necessary if we were to understand the physiology and function of AM fungi at a molecular level. In addition, we have taken the opportunity to present these reviews in a logical sequence of topics ranging from the initiation of the life cycle of the fungus to its functions in plant growth and in the below ground ecosystem. It was a challenge to limit this flood of information to the confines of one text. This is a very exciting time for mycorrhiza biologists and it is our hope that some of this excitement is conveyed to our readers.

Download or read book Mycorrhiza Nutrient Uptake Biocontrol Ecorestoration written by Ajit Varma and published by Springer. This book was released on 2018-01-15 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the fourth updated and revised edition of a well-received book that emphasises on fungal diversity, plant productivity and sustainability. It contains new chapters written by leading experts in the field. This book is an up-to-date overview of current progress in mycorrhiza and association with plant productivity and environmental sustainability. The result is a must hands-on guide, ideally suited for agri-biotechnology, soil biology, fungal biology including mycorrrhiza and stress management, academia and researchers. The topic of this book is particularly relevant to researchers involved in mycorrhiza, especially to food security, plant microbe interaction and environmental protection. Mycorrhizas are symbioses between fungi and the roots of higher plants. As more than 90% of all known species of plants have the potential to form mycorrhizal associations, the productivity and species composition and the diversity of natural ecosystems are frequently dependent upon the presence and activity of mycorrhizas. The biotechnological application of mycorrhizas is expected to promote the production of food while maintaining ecologically and economically sustainable production systems.

Download or read book Techniques for the Study of Mycorrhiza Part II written by and published by Academic Press. This book was released on 1992-01-10 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volumes 23 and 24 of this highly acclaimed series focus on methods used for the study of both ectomycorrhiza and vesicular-arbuscular mycorrhiza. Written by a team of international experts, these volumes comprise the most extensive compilation of methods available on this topic.

Download or read book Mycorrhiza in Tropical and Neotropical Ecosystems written by Mohamed Hijri and published by Frontiers Media SA. This book was released on 2018-10-19 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mycorrhizal symbiosis is a mutualistic association of plant roots and fungi that plays a major role in ecosystem function and diversification, as well as its stability and productivity. It also plays a key role in the biology and ecology of forest trees, affecting growth, water and nutrient absorption and protection against soil-borne pathogens. However, the mycorrhizal research in tropical and neotropical ecosystems remains largely unexplored despite its importance in tropical and neotropical ecosystems. These ecosystems represent more than 0.6% of the total land ecosystems and they have a crucial role in the Earth’s biogeochemical cycling and climate. Threats to tropical forest biodiversity should therefore encourage investigations and inventories of mycorrhizal diversity, function and ecology in tropical latitudes because they concern ecologically and economically important plant species. This Research Topic aims to provide an overview of the knowledge of mycorrhizal symbioses in tropical and neotropical ecosystems. For this Research Topic, we welcome articles that address the diversity, ecology and function of mycorrhiza associated with plants, the impacts of mycorrhiza on plant diversity and composition, the regeneration and dynamics of ecosystems, and biomass production in ecosystems.

Download or read book The Mycorrhizae written by S.C. Sati, Manoj Tiwari and published by Daya Books. This book was released on 2008 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many plants benefit greatly from symbiotic relationship with soil fungi known as mycorrhizal fungi. These fungi live on and in the root systems of plants and provide nutrients to the plant in exchange for carbohydrates exuded by the plants. Some of the ecological uses of mycorrhizae include (i) enchancing plant growth and disease resistance (ii) improving transplant success (iii) building soil structure (iv) reducing fertilizer dependency and (v) accelerating revegetation of degraded lands. While over 80 percent of the terrestrial plants show mycorrhizal association, the depth of its application towards industries seems to be under-exploited. Moreover, severe deforestation and land degradation have removed the host plants from the habitats giving way to loss of diversity of the mycorrhizal fungi. Particularly, this problem is acute in the tropical region of the world, where various naturals calamities such as floods, landslides, fire, etc in addition to the human exploitation of natural resources have degraded the major part of the ecosystems. Although, causes are known, Strategies to rebuild the degraded systems remain bliss. There are many national and international journals that bring out the information about the mycorrhizal fungi and their symbiotic relationship with plants but the recent knowledge is almost in scattered state. This scattered information could be kept in a book to provide up-to-date information about mycorrhizal research especially being done in different corner of India. This book is a very selective monograph on mycorrhizae covering its different aspects. It is excellent collection of 21 articles dealing with different disciplines of mycorrhizae and mycorrhizal research carried out by Indian scientists. In order to consummate the collective ideas on mycorrhizal association, its diversity and applications, a number of themes have been identified for this book, including (i) Biodiversity and Ecological issues on mycorrhizal association (ii) Physiology and molecular biology of plant-mycorrhizal fungal interactions (iii) Potential industrial applications. It is doubtless to say that this book would be very useful to all scientists, teachers, students and readers whosoever in interested on mycology and mycological literature. Contents Chapter 1: Rhizoendomutualmycota (REMM): A New Phylum for the Farmers Friend Number One by S P Gautam and U S Patel; Chapter 2: Diversity of Arbuscular Mycorrhizal Fungi in India by V S Mehrotra; Chapter 3: Diversity and Integration in Mycorrhizas: Meaning to Plant Ecology by Subhendu Chaudhuri and Birendranath Panja; Chapter 4: Mycorrhizal Biotechnology for Increasing Growth and Productivity of Fruit Plants by Pradeep B Patil and Chaya P Patil; Chapter 5: Arbuscular Mycorrhizal Symbiosis: An Overview of Research and Extension Needs by Mukesh K Meghvansi, K K Chaudhary and Kamal Prasad; Chapter 6: Vesicular Arbuscular Mycorrhizae: Modern Research Trends and Future Prospects by Ashok Aggarwal, Vipin Parkash, R S Mehrotra, Anil Gupta and Sunits Kaushish; Chapter 7: Arbuscular Mycorrhizal Fungi Under the Dynamics of Rhizosphere by Shruti Chaturvedi, Nisha Verma and A K Sharma; Chapter 8: Arbuscular Mycorrhiza Fungi Under the Dynamics of Rhizosphere by Shruti Chaturvedi, Nisha Verma and A K Sharma; Chapter 8: Arbuscular Mycorrhiza on Root-Organ Cultures by Nishi Mathur, Joginder Singh, Sachendra Bohra, Avinash Bohra and Anil Vyas; Chapter 9: Application of AM Technology for Phytoremediation of Heavy Metal Contaminated Soils by Harbans Kaur Kehri, Nidhi Sharma and Varun Khare; Chapter 10: Mycorrhizal Technology in Revegetation Practices in India Thar Desert by Nishi Mathur, Joginder Singh, Sachendra Bohra, Avinash Bohra and Anil Vyas; Chapter 11: Approaches to Utilize Native Arbuscular Mycorrhizal Association for Improving P Nutrition in Upland Rice Under Rainfed Ecosystem by D Maiti, M K Barnwal, R K Singh and S K Rana; Chapter 12: Arbuscular Mycorrhizal Fungi in Forest Tree Seedling Production by T Muthukumar and K Udaiyan; Chapter 13: Reclamation of Saline Soils through Arbuscular Mycorrhizae by Sudhir Chandra, Anshu Tiwari and H K Kehri; Chapter 14: Role of Mycorrhizal Association in Growth of Forest Trees by Lakshmi Tewari, Salil K Tewari and Rajesh Kaushal; Chapter 15: Vesicular Arbuscular Mycorrhiza in Artinorhizal Plants and their Management Implications by Kiran Bargali and S S Bargali; Chapter 16: Methods for Arbuscular Mycorrhizal Research by Purshotam Kaushik and Supriya Gaur; Chapter 17: Diversity of Arbuscular Mycorrhizal Fungi in the Kaumaun Region of India Central Himalaya by Bhaskar Chaurasia, Anita Pandey and Lok Man S Palni; Chapter 18: Effect of AM Fungi on the Growth and Nutrition Uptake in Some Endemic Myristicaceae Members of the Western Ghats, India by P Rama Bhat and K M Kaveriappa; Chapter 19: Diversity of AM Fungi in Some Endemic Members of Myristicaceae of the Western Ghats, India by P Rama Bhat and K M Kaveriappa; Chapter 20: Role of Vesicular Arbuscular Mycorrhizal (Glomus aggregatum) Fungi on Plant Growth Promotion in Chickpea by Daljeet Singh and R S Singh; Chapter 21: Mycrorrhiza for Growth Enhancement and Pathogen Suppression in Black Pepper.

Download or read book The Rhizosphere and Plant Growth written by Donald L. Keister and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: Papers Presented at a Symposium held May 8--11, 1989, at the Beltsville Agricultural Research Center (BARC), Beltsville, Maryland, U.S.A.

Download or read book Methods and Principles of Mycorrhizal Research written by Norman Carl Schenck and published by . This book was released on 1982 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Taxonomy of the fungi forming endomycorrhizae; Morphology and histology of vesicular-arbuscular mycorrhizae; Methods for the recovery and quantitative estimation of propagules from soil; Quantification of vesicular-arbuscular mycorrhizae in plant roots; Production of endomycorrhizal inoculum; Procedures for inoculation of plants with vesicular-arbuscular mycorrhizae in the laboratory, greenhouse and field; Evaluationof plant response to colonization by vesicular-arbuscular mycorrhizal fungi; Spore germination and axenic culture of endomycorrhizae; Taxonomy of ecto- and ectendomycorrhizal fungi; Morphology and development of ecto- and ectendomycorrhizae; Isolation, maintenance, and pure culture manipulation of ectomycorrhizal fungi; Production of ectomycorrhizal fungus inoculum; Ectomycorrhizal inoculation procedures for greenhouse and nursery studies; Quantitative measurement of ectomycorrhizae on plant roots; Evaluation of plant response to inoculation; Radiotracer methods for mycorrhizal research; Electron mycroscopy of mycorrhizae; Mycorrhizae in interactions with other microorganisms.