Isolation and Characterization of Phosphate Solubilizing Bacteria Isolated from Tropical Upland Reforestation Soil
Isolation and Characterization of Phosphate Solubilizing Bacteria Isolated from Tropical Upland Reforestation Soil

Author: Zulaikha Mohamad Azam

Publisher:

Published: 2013

Total Pages: 106

ISBN-13:

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Microorganisms of solubilizing phosphorus (P) pools in soils are considered essential in promoting P bioavailability. A study was conducted in laboratory to screen and isolate Phosphate solubilizing bacteria (PSB) taken from tropical upland reforestation soil in Sungai Chuchuh UniMAP Campus, Perlis and to evaluate the biodiversity between the sampling from Housing area (HA) and Orchard area (OA). The PSB were isolated from rhizhosphere on nutrient agar (NA) medium by the serial dilutions. Bacterial cells concentration was determined by using colony forming unit (CFU) method. On the other hand, the most efficient phosphate solubilizers were detected on National Botanical Research Institute Phosphorus (NBRIP) selective medium by measuring the clear zone around the bacterial colony. The highest Solubilizing efficiency (SE) activity (123.61 %) was found in PSB 5 (OA) strains grown in NBRIP selective media plate. The results were shown that about twelve (12) PSB strains were isolated and has been characterize as eight (8) gram positive and four (4) gram negative bacteria also has been classified based on their morphological criteria. Isolated PSB strains were capable to produce organic acids since the pH of medium has been reduced. PSB inoculants with their beneficial traits would be considered as potential biofertilizer for the sustainable agricultural systems especially in Tropical Upland Reforestation Soil in Sungai Chuchuh as well as in other places.

First International Meeting on Microbial Phosphate Solubilization
First International Meeting on Microbial Phosphate Solubilization

Author: E. Velazquez

Publisher: Springer Science & Business Media

Published: 2007-05-27

Total Pages: 352

ISBN-13: 1402057652

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In 2002, sixty international specialists met to discuss problems of high P-unavailability as a soil nutrient for crops, and the hazards of increased phosphate input to aquatic habitats from industrial and mining activities, sewage disposal, detergents, and other sources. Among the presentations were updated solutions to enhance P-uptake by plants, bioremediation potential in the rehabilitation of ecosystems, taxonomic characterization interactions with mycorrizae, the physiological and molecular basis of PSM, and more.

Organic Farming
Organic Farming

Author: Sarath Chandran

Publisher: Woodhead Publishing

Published: 2018-11-23

Total Pages: 436

ISBN-13: 0128132736

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Organic Farming: Global Perspectives and Methods explores the core definition and concepts of organic farming in sustainability, its influence on the ecosystem, the significance of seed, soil management, water management, weed management, the significance of microorganisms in organic farming, livestock management, and waste management. The book provides readers with a basic idea of organic farming that presents advancements in the field and insights on the future. Written by a team of global experts, and with the aim of providing a current understanding of organic farming, this resource is valuable for researchers, graduate students, and post-doctoral fellows from academia and research institutions. Presents the basic principles of organic farming and sustainable development Discusses the role of soil in organic agriculture Addresses various strategies in seed processing and seed storing, seed bed preparation, watering of seeds and seed quality improvement Includes updated information on organic fertilizers and their preparation techniques

Phosphate Solubilizing Microbes for Crop Improvement
Phosphate Solubilizing Microbes for Crop Improvement

Author: Mohammad Saghir Khan

Publisher:

Published: 2009

Total Pages: 0

ISBN-13: 9781608761128

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This book provides a comprehensive source of information on strategies and concepts of microbial technology especially phosphate-solubilising microbes for the improvement of crops in different agro-ecosystems. The book presents the biological importance of phosphorus and strategies adopted for isolation and screening of PSM (s), mechanisms of P solubilisation, mechanisms of plant growth promotion, and method for the development of microphos. Furthermore, some novel approaches including molecular tools used to identify the potential phosphate-solubilising microbes are presented. The recent advances in understanding the genetics and molecular biology of phosphate-solubilizing bacteria and the genetic engineering of bacterial strains with enhanced phosphate-solubilising activity are discussed that is likely to lead to improve the efficiency of microphos inoculants and crop productivity. The problems, prospect and potentials of phosphate-solubilising microbes and their impact on agronomically important crops grown in conventional soils are discussed separately. Special attention is paid to highlight the functional variations within phosphate-solubilising microbes and to understand the impact of various factors on the phosphate-solubilising efficiency and colonization of such naturally occurring organisms. The synergism between phosphate-solubilizing microbes and other plant growth promoting rhizobacteria/arbuscular mycorrhizal fungi and their interactive effect on crop productivity is highlighted separately. The book also presents a broad and updated view of the management of plant diseases using phosphate-solubilising microbes. The book further describes as to how the growth promoting rhizobacteria facilitate plant growth and how advanced information strategies can be used to manipulate and modify the soil environment.

Advances in Fungal Biotechnology for Industry, Agriculture, and Medicine
Advances in Fungal Biotechnology for Industry, Agriculture, and Medicine

Author: Jan S. Tkacz

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 455

ISBN-13: 1441988599

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In the past half century, filamentous fungi have grown in commercial importance not only in the food industry but also as sources of pharmaceutical agents for the treatment of infectious and metabolic diseases and of specialty proteins and enzymes used to process foods, fortify detergents, and perform biotransformations. The commercial impact of molds is also measured on a negative scale since some of these organisms are significant as pathogens of crop plants, agents of food spoilage, and sources of toxic and carcinogenic compounds. Recent advances in the molecular genetics of filamentous fungi are finding increased application in the pharmaceutical, agricultural, and enzyme industries, and this trend promises to continue as the genomics of fungi is explored and new techniques to speed genetic manipulation become available. This volume focuses on the filamentous fungi and highlights the advances of the past decade, both in methodology and in the understanding of genomic organization and regulation of gene and pathway expression.

Rhizosphere Engineering
Rhizosphere Engineering

Author: Ramesh Chandra Dubey

Publisher: Academic Press

Published: 2022-02-15

Total Pages: 566

ISBN-13: 0323885950

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Rhizosphere Engineering is a guide to applying environmentally sound agronomic practices to improve crop yield while also protecting soil resources. Focusing on the potential and positive impacts of appropriate practices, the book includes the use of beneficial microbes, nanotechnology and metagenomics. Developing and applying techniques that not only enhance yield, but also restore the quality of soil and water using beneficial microbes such as Bacillus, Pseudomonas, vesicular-arbuscular mycorrhiza (VAM) fungi and others are covered, along with new information on utilizing nanotechnology, quorum sensing and other technologies to further advance the science. Designed to fill the gap between research and application, this book is written for advanced students, researchers and those seeking real-world insights for improving agricultural production. Explores the potential benefits of optimized rhizosphere Includes metagenomics and their emerging importance Presents insights into the use of biosurfactants

Phosphate Solubilizing Bacteria
Phosphate Solubilizing Bacteria

Author: Mudivarthi S. Krishnaveni

Publisher: LAP Lambert Academic Publishing

Published: 2012-04

Total Pages: 104

ISBN-13: 9783845407036

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Phosphorus is an essential and major nutrient for microorganisms and plants. Phosphorus influences plant growth and productivity throughout the world. Also it is an essential component of DNA and RNA in biological systems. Since most of the compounds of phosphorus occurring in nature especially in soils are insoluble, microorganisms, in particular, rhizobacteria play a significant role in the solubilization of these compounds. Hence the present study on phosphate-solubilizing bacteria in the rhizosphere of foxtail millet is essentially concerned with the following aspects: Isolation and enumeration of populations of phosphate-solubilizing bacteria from the rhizosphere and non-rhizosphere soil samples of foxtail millet. Purification and identification of the representative isolates. Estimation of the extent of solubilization by the different isolates of the phosphate-solubilizing bacteria. Seeds of 3 different varieties viz., Chitra, Lepakshi and Prasad were treated with individual inoculation of both bacteria and after 3 days of incubation seeds were sown. Shoot length was observed in respective concentrations i.e., 10-1 to 10-7 dilutions."