The morphological and the Biochemical characteristics of the 5 good Potassium solubilizers are presented in Tables 2. Most of these isolates are aerobic, capsulated, motile and 2 of them are Gram positive while 3 are gram negative. The biochemical characters are studied for the five isolates of potassium solubilizing bacteria presented in ...
Maurya BR, Meena VS, Meena OP (2014) Influence of Inceptisol and Alfisol's potassium solubilizing bacteria (KSB) isolates on release of K from waste mica. Vegetos 27(1):181–187 Google Scholar Meena OP, Maurya BR, Meena VS (2013) Influence of K- solubilizing bacteria on release of potassium from waste mica.
The molecular mechanisms of KSMs for enhancement of crop production under organic farming.- 6 Mycorrhizal Fungi: Role in the solubilization of potassium.- 7 Diversity of potassium solubilizing microorganisms and their interactions with plants.- 8 Interactions between arbuscular mycorrhizal fungi and potassium solubilizing microorganisms on ...
The production of organic acids is considered as the principal mechanism for mineral phosphate solubilization in bacteria, this assumption has been corroborated by the cloning of two genes involved in gluconic acid production viz., pqq and gab Y. Gluconic acid is the principal organic acid produced by Pseudomonas spp., Erwinia herbicola, Bacillus spp., Burkholderia spp., Rhizobium spp.
It is known that potassium solubilizing bacteria (KSB) can solubilize K-bearing minerals and convert the insoluble K to soluble forms of K available to plant uptake. Many bacteria such as Acidothiobacillus ferrooxidans, Paenibacillus spp., Bacillus mucilaginosus, B. edaphicus, and B. circulans have capacity to solubilize K minerals (e.g., biotite, feldspar, illite, muscovite, orthoclase, and mica).
The variability among the microbe indicates the importance of exploration of different mineral potassium solubilizing bacteria and their solubilizing mechanisms. 4. Conclusion All the KSM were found to be capable of solubilizing K from insoluble K-bearing minerals source, and the solubilization zone ranged from 0.15 to 4.5 cm. 13.3% isolate has Solubility Index (SI) more than four on solid medium.
Phosphate solubilizing bacteria (PSB) have the potential to enhance phosphate-induced immobilization of metals to remediate contaminated soil. However, there is a limit on the amount of phosphate which can be added to the environment due to the issue of eutrophication.
Indonesia reached 8857 million tons, but the potassium contained in mineral form is not available to plants. Potassium in minerals can become available to plants one of them through the process of weathering in a very long time. The process of dissolving potassium can be accelerated through Potassium-Solubilizing Bacteria (KSB).
Potassium Solubilization by Rhizosphere Bacteria: Influence of Nutritional and Environmental Conditions Priyanka Parmar, S. S. Sindhu* Department of Microbiology, CCS Haryana Agricultural University, Hisar, 125004, India . Abstract. Potassium (K) is the third major essential macronutrient for plant growth. The concentrations of soluble
Mechanism of Potassium Solubilization in the Agricultural Soils by the Help of Soil Microorganisms. Abstract Potassium (K) is an essential macronutrient, largely required for normal functioning of plants; however, its solubilization is an important detriment for limiting agricultural productivity.
Potassium solubilizing bacteria (KSB) such as Bacillus mucilagenosus and Bacillus edaphicus are example of microorganisms that used in biofertilizer. KSB are able to solubilize potassium rock through production and secretion of organic acids (Han and Lee, 2005). Fundamentally, potassium is a macronutrient in plants
Comparative efficiency of five potash and phosphate solubilizing bacteria and their key enzymes useful for enhancing and improvement of soil fertility Sajidmohammad A Saiyad*, Dr. Yogeshvari K Jhala**, Dr. R. V. Vyas** * Shri P.M. Patel institute of P.G. studies & research in science, India
Potassium solubilizing bacteria (KSB): Mechanisms, promotion of plant growth, and future prospects - a review Hassan Etesami1*, Somayeh Emami1, Hossein Ali Alikhani 1 1Department of Soil Science, Faculty of Agricultural Engineering & Technology, University College of Agriculture & Natural Resources, University of Tehran, Karaj- Iran.
PGP Bacteria Isolation and Determinations of N 2-fixing, P- and K-solubilizing Ability. In each bacterial isolation, a total of 10.0 g of purple soil from each plot was mixed with 90 ml sterilized tap-water and shaken at 120 rpm for 0.2 h at 28 ± 2°C (Zhang et al., 2012).
Principal mechanism in soil for mineral phosphate solubilization is lowering of soil pH by microbial production of organic acids and mineralization of organic P by acid phosphatases. Use of phosphorus solubilizing bacteria as inoculants increases P uptake. These bacteria also increase prospects of using phosphatic rocks in crop production.
The readily available potassium in soil solution is just 2 % out of the total, and the remaining part of soil potassium is locked up in soil minerals and hence most of it is unavailable for plant uptake. Also, in most of the soils, potassium decreases easily due to crop uptake, runoff, leaching and soil erosion.
potassium solubilizing microorganisms, which solubilize fixed forms of potassium to plant available K by various mechanisms including acidolysis, chelation, exchange reactions, complexlysis, and production of organic acids, are considered one such available alternative.
Isolation and Screening of Potassium and Zinc Solubilizing Bacteria from Different Rhizosphere Soil Bhagwan Singh Dhaked*, S. Triveni, R. Subhash Reddy and G. Padmaja Department of Agricultural Microbiology and Bioenergy, College of Agriculture, Professor Jayashankar Telangana State Agricultural University, Rajendranagar, Hyderabad-500030, India
The main mechanism of KSMs is acidolysis, chelation, exchange reactions, complexolysis and production of organic acid. According to literature, currently negligible use of potassium fertilizer as a chemical form has been recorded in agriculture for enhancing crop yield.
Introduction. These potassium solubilizing bacteria (KSB) were found to dissolve potassium, silicon and aluminium from insoluble K-bearing minerals such as micas, illite and orthoclases, by excreting organic acids which either directly dissolved rock K or chelated silicon ions to bring K into the solution [14-16].
The enhanced release of mineral K might be attributed to the release of organic acids from the bacteria, a mechanism which plays a pivotal role in solubilizing phosphate from inorganic sources. The results confirmed the enhanced phosphate solubilization by the bacterial strains in the presence of muscovite.
Potassium-solubilizing bacteria (KSB) could serve as inoculants. They convert insoluble potassium in the soil into a form that plants can access. This is a promising strategy for the improvement of plant absorption of potassium and so reducing the use of chemical fertilizer.
Isolation and purification of potassium solubilizing bacteria from different regions of India and its effect on crop's yield Anukriti Verma1,*, Yamini Patidar2, Aditi Vaishampayan3 1Senior Scientist, 2PG Student, 3Assistant Microbiologist, Indore Biotech Inputs & Research Private Limited, Madhya Pradesh *Corresponding Author:
Biofertilizer is a good platform to deliver this primary macronutrient by assistance of Potassium Solubilizing microorganisms. Solubilization of this soil mineral, by fungi and bacteria are well established, which reflects their use as competent biofertilizers.
Desert soils are infertile, and the ability to improve them by P-fertilization is limited by the solubility of phosphate. We aimed to understand the function of phosphate solubilizing bacteria and the mechanisms behind phosphate solubilization in desert soils.
Acta Biotech. 7: 299-306. present investigation, revealed that the expected mechanism by which gluconic acid is able to dissolve insoluble metal Han, H. S. Supanjani. and Lee, K. D. Effect of co-inoculation with phosphate and potassium solubilizing bacteria on mineral uptake and compounds is mainly by acidification.
Potassium Solubilizing Microorganisms for Sustainable Agriculture. However, the KSMs are most important microorganisms for solubilizing fixed form of K in soil system. The KSMs are an indigenous rhizospheric microorganism which show effective interaction between soil-plant systems. The main mechanism of KSMs is acidolysis, chelation,...
Copyright © 2019. Richest Group All rights reserved.