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Articles de revues sur le sujet « Solubilizing microorganisms »

Auteur : Grafiati
Publié le 4 juin 2021
Mis à jour le 6 février 2022

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1

Rathore, Pragya, Nandini Phanse, and Bhavesh Patel. "Screening For Microorganisms Possessing Phosphate Solubilizing Potential." Paripex - Indian Journal Of Research 3, no. 1 (2012): 172–74. http://dx.doi.org/10.15373/22501991/jan2014/53.

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Umar, M. I. "P- SOLUBILIZING MICROORGANISMS PERFORMANCE ON MANURE AND ROCK PHOSPHATE AND THEIR INFLUENCES ON SOIL AND PLANT PHOSPHOROUS IN CALCAREOUS SOILS." IRAQI JOURNAL OF AGRICULTURAL SCIENCES 52, no. 2 (2021): 437–44. http://dx.doi.org/10.36103/ijas.v52i2.1305.

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Phosphate solubilizing microorganisms were isolated in vitro experiment, and wheat crops were planted in pots for 5 months and treated with rock phosphate, manure and with combination treatments of rock phosphate, manure, and phosphate solubilizing microorganisms to compare with control treatment. The result shows that the solubilizing index ranged between 1.4 to 1.6 for isolated microorganisms, the decrease in soil pH which has an enormous influence on phosphate solubility were significantly influenced by the addition of phosphate solubilizing microorganisms, and manure is 6.5 pH comparing with 8 pH for control. Soil soluble and extractable phosphorous also increased by a combination of phosphate solubilizing microorganisms and manure recording 0.46±0.03 ppm and 10.7±1.01 ppm respectively comparing to 0.39±0.01 ppm and 0.75±0.11ppm for control after one month of the experiment, and this significance continued to 3 and 5 months after planting followed by the combination treatment of rock phosphate and phosphate solubilizing microorganisms. Total phosphorous in both wheat shoot and root after 5 months of planting were increased significantly by the addition of phosphate solubilizing microorganisms and manure to record 0.792±0.11% in shoot and 0.66±0.13% in roots and more than other treatments, however the translocation of phosphorous is harder than nitrogen from roots to shoots. The addition of phosphate solubilizing microorganisms enhanced the growth ratio of wheat up to 96±5 comparing to 40±3 for control.
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Vassilev, N., B. Eichler-Löbermann, and M. Vassileva. "Stress-tolerant P-solubilizing microorganisms." Applied Microbiology and Biotechnology 95, no. 4 (2012): 851–59. http://dx.doi.org/10.1007/s00253-012-4224-8.

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Bashir, Zaffar. "Potassium Solubilizing Microorganisms: Mechanism and Diversity." International Journal of Pure & Applied Bioscience 5, no. 5 (2017): 653–60. http://dx.doi.org/10.18782/2320-7051.5446.

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Zhang, Shu Qing, Jian Feng Li, Shang Li Shi, et al. "Phosphate Solubilizing Microorganisms and Phosphate Solubilizing Rhizobium – Mini Review." Applied Mechanics and Materials 295-298 (February 2013): 2328–32. http://dx.doi.org/10.4028/www.scientific.net/amm.295-298.2328.

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Phosphorus is the main nutrient element for plant growth, whereas most of phosphate in soil is fixated by calcium, aluminum, iron and organic compounds. Available phosphate deficiency has been the main limiting factor that influences the yield and quality of agricultural products. P solubilizing microorganisms have been widely reported of solubilizing different forms of insoluble phosphates. P solubilizing Rhizobium, especially for strains with the ability of secreting 3-Indole acetic acid, which is also capable of fixating N and inoculation, is found excellent in promoting growth and yield of legume crops, which decreases the cost of agricultural production and the side effect of P application to the environment. The mechanism and amount range of P solubilization for Rhizobium are varied among strains. These results and phenomena from different studies are discussed in this paper.
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Priha, Outi K., Tuija H. Sarlin, Mona E. Arnold, and Päivi Kinnunen. "Enrichment and Isolation of Phosphorus Solubilizing Bacteria." Advanced Materials Research 825 (October 2013): 62–65. http://dx.doi.org/10.4028/www.scientific.net/amr.825.62.

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The aim of this study was to enrich phosphorus solubilizing microorganisms from high-phosphorus iron ores, apatite ores and phosphogypsum waste. Phosphorus solubilizing microorganisms can be utilized in dephosphorization of high-phosphorus iron ores and in phosphorus leaching from fluorapatite ores. Low grade fluorapatite ore (3.6% P, pH 6.8), fluorapatite concentrate (13% P, pH 8.3), phosphogypsum waste (0.7% P, pH 2.3), iron ore 1 (0.19% P, pH 7.6) and iron ore 2 (0.18% P, pH 7.6) were used as potential sources of phosphorus solubilizing microorganisms. The samples were cultured in NBRIP media at pH 5 and 8 with either glucose or sucrose as a carbon source, and in modified 9K media at pH 1.5 and 2.5 for 3 weeks. Phosphorus solubilizing bacteria were enriched only from the fluorapatite concentrate at the pH of 8. The four obtained heterotrophic isolates were identified by 16S rRNA gene sequencing, and were shown to be closest related to Burkholderia fungorum. These results indicate that the diversity of culturable phosphorus solubilizing bacteria present in apatite and iron ores is relatively low. The isolated Burkholderia strain showed phosphorus solubilizing potential.
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Mikanová, O., and J. Nováková. "Evaluation of the P-solubilizing activity of soil microorganisms and its sensitivity to soluble phosphate." Plant, Soil and Environment 48, No. 9 (2011): 397–400. http://dx.doi.org/10.17221/4386-pse.

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Microbial solubilization of hardly soluble mineral phosphates in soil is an important process in natural ecosystems and in agricultural soils. Regulation of the P-solubilizing activity by the presence of soluble phosphates in medium was determined. For this reason we decided to test a number of soil bacteria showing a high P-solubilizing activity for its sensitivity to the presence of soluble dihydrogen potassium phosphate in medium. At these studies, the direct determination of the solubilized phosphate in medium was masked by the presence of relatively high concentrations of soluble phosphate added. Therefore, we have modified the method, determining the residual tricalcium phosphate. The effect of soluble phosphate in medium on the P-solubilizing activity of rhizosphere isolates and strains of Rhizobium were tested in liquid cultures with the addition of various concentrations of soluble KH<sub>2</sub>PO<sub>4</sub>. The medium was filtered after incubation and the remaining tricalcium phosphate was separated by filtration. Filter papers with the remaining tricalcium phosphate were hydrolysed with 2N H2SO4. Phosphorus was determined spectrophotometrically. The P-solubilizing activity was expressed as a difference between the tricalcium phosphate added and its remainder after the incubation. These results fully confirmed that there exist the strains, whose P-solubilizing activity is inhibited and other strains, whose P-solubilizing activity is not inhibited or is inhibited very little in the presence of soluble phosphate. The use of our adapted method was much more suitable for this type of experiments.
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Kalayu, Girmay. "Phosphate Solubilizing Microorganisms: Promising Approach as Biofertilizers." International Journal of Agronomy 2019 (June 9, 2019): 1–7. http://dx.doi.org/10.1155/2019/4917256.

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Phosphorus (P) is a macronutrient required for the proper functioning of plants. Because P plays a vital role in every aspect of plant growth and development, deficiencies can reduce plant growth and development. Though soil possesses total P in the form of organic and inorganic compounds, most of them remain inactive and thus unavailable to plants. Since many farmers cannot afford to use P fertilizers to reduce P deficits, alternative techniques to provide P are needed. Phosphate solubilizing microbes (PSMs) are a group of beneficial microorganisms capable of hydrolyzing organic and inorganic insoluble phosphorus compounds to soluble P form that can easily be assimilated by plants. PSM provides an ecofriendly and economically sound approach to overcome the P scarcity and its subsequent uptake by plants. Though PSMs have been a subject of research for decades, manipulation of PSMs for making use of increasing fixed P in the soil and improving crop production at the field level has not yet been adequately commercialized. The purpose of this review is to widen the understanding of the role of PSMs in crop production as biofertilizers.
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Vassilev, Nikolay, Bettina Eichler-Löbermann, Antonia Reyes Requena, Vanessa Martos, Ana Lopez, and Maria Vassileva. "Biodiesel by-products and P-solubilizing microorganisms." Reviews in Environmental Science and Bio/Technology 15, no. 4 (2016): 627–38. http://dx.doi.org/10.1007/s11157-016-9410-1.

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G. L. Bhoosreddy, G. L. Bhoosreddy. "Isolation and Screening of Efficient Phosphate Solubilizing Microorganisms From Different Soils." International Journal of Scientific Research 3, no. 4 (2012): 1–3. http://dx.doi.org/10.15373/22778179/apr2014/169.

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Wang, Ying-Ying, Pei-Shan Li, Bi-Xian Zhang, et al. "Identification of phosphate-solubilizing microorganisms and determination of their phosphate-solubilizing activity and growth-promoting capability." BioResources 15, no. 2 (2020): 2560–78. http://dx.doi.org/10.15376/biores.15.2.2560-2578.

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Phosphate-solubilizing microorganisms have been considered as a novel alternative approach to provide phosphate fertilizers that promote plant growth. In this study, three strains were isolated and identified as Penicillium oxalicum FJG21, Penicillium oxalicum FJQ5, and Bacillus subtilis BPM12, with a relatively high phosphate-solubilizing activity. Various phosphate sources were investigated, and Ca3(PO4)2 was identified as the effective phosphate source. Factors governing the phosphate-solubilizing activity of the strains included carbon and nitrogen sources, initial pH, and fermentation time. A high soluble phosphorus content was achieved with 529.0 μg·mL-1, 514.0 μg·mL-1, and 330.7 μg·mL-1 for Penicillium oxalicum FJG21, Penicillium oxalicum FJQ5, and Bacillus subtilis BPM12, respectively. An inverse correlation of the quantity of soluble phosphorus content and the pH value of the medium was observed. In addition, Bacillus subtilis BPM12 displayed a prominent capability of producing indole acetic acid. Penicillium oxalicum FJG21 and Penicillium oxalicum FJQ5 exhibited high cellulase activities. These phosphate-solubilizing microorganisms with good phosphate-solubilizing capability and growth-promoting ability are the promising strains for agricultural utilization.
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Li, Chong, Zhaohui Jia, Lu Zhai, et al. "Effects of Mineral-Solubilizing Microorganisms on Root Growth, Soil Nutrient Content, and Enzyme Activities in the Rhizosphere Soil of Robinia pseudoacacia." Forests 12, no. 1 (2021): 60. http://dx.doi.org/10.3390/f12010060.

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Background: Abandoned mining sites are becoming increasingly common due to anthropogenic activities. Consequently, external-soil spray seeding technology has attracted increasing attention as a strategy to remediate them. However, significant challenges remain that greatly inhibit the efficacy of such technologies, such as insufficient nutrients available for plants. Methods: For this study, we designed an experiment, which involved the addition of mineral-solubilizing microorganisms and R. pseudoacacia seedlings to the external-soil spray seeding (ESSS) substrate, and measured the soil nutrients, enzyme activities, and root growth of R. pseudoacacia. Results: First, the combination of certain mineral-solubilizing microorganisms with ESSS advanced its efficiency by increasing the availability of soil nutrients and soil enzymatic activities in association with R. pseudoacacia. Furthermore, the improvement of root growth of R. pseudoacacia was intimately related to soil nutrients, particularly for soil total nitrogen (TN) and total sulfur (TS). In general, the effects of the J2 (combined Bacillus thuringiensis and Gongronella butleri) treatment for soil nutrients, enzyme activities, and plant growth were the strongest. Conclusion: In summary, the results of our experiment revealed that these mineral-solubilizing microorganisms conveyed a promotional effect on R. pseudoacacia seedlings by increasing the soil nutrient content. These results provide basic data and microbial resources for the development and applications of mineral-solubilizing microorganisms for abandoned mine remediation.
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Prajapati, Dr Kalavati, and Dr H. A. Modi Dr. H.A. Modi. "The Study of Shelf Life of Potassium Solubilizing Microorganisms for Liquid Biofertilizer." Paripex - Indian Journal Of Research 3, no. 6 (2012): 13–14. http://dx.doi.org/10.15373/22501991/june2014/4.

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Gaind, S., and A. C. Gaur. "Shelf life of phosphate-solubilizing inoculants as influenced by type of carrier, high temperature, and low moisture." Canadian Journal of Microbiology 36, no. 12 (1990): 846–49. http://dx.doi.org/10.1139/m90-146.

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A charcoal–soil mixture, paddy straw compost, and wheat bran were tested to explore their possible use as carriers for phosphate-solubilizing bacteria and fungi. The charcoal–soil mixture was found to be the best carrier for phosphate-solubilizing bacteria, and wheat bran, for phosphate-solubilizing fungi. Higher temperatures during storage markedly influenced the shelf life of phosphate-solubilizing microorganisms. Thermotolerant strains, such as Bacillus subtilis, Bacillus circulans, and Aspergillus niger, were found to survive not only at high storage temperatures (40 and 45 °C), but also at low moisture status in the carrier. Key words: inoculum carriers, thermotolerant strains, shelf life.
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Stamenov, Dragana, Mirjana Jarak, Simonida Djuric, Hajnal Jafari, and Dragana Bjelic. "Microbiological transformations of phosphorus and sulphur compounds in acid soils." Zbornik Matice srpske za prirodne nauke, no. 123 (2012): 27–36. http://dx.doi.org/10.2298/zmspn1223027s.

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The dynamics of phosphorus and sulphur in soil is closely related to the dynamics of the biological cycle in which microorganisms play a central role. There is not much microbiological activity in acid soils because aerobes are scarce, rhizosphere is restricted to the shallow surface layer, and the biomass of microorganisms decreases with higher acidity. The aim of the research was to investigate the number of microorganisms, which decompose organic and inorganic phosphorus compounds and organic sulphur compounds in calcocambisol, luvisol, and pseudogley. The following parameters were determined in the soil samples: pH in H2O and in 1MKCl; the content of CaCO3 (%); humus content (%), nitrogen content (%); the content of physiologically active phosphorus and potassium (mg P2O5/100g of soil; mg K2O/100g of soil). The number of microorganisms was determined by the method of agar plates on appropriate nutrient media: the number of microorganisms solubilizing phosphates on a medium by Muramcov; the number of microorganisms that decompose organic phosphorus compounds on a medium with lecithin; and the number of microorganisms that transform organic sulphur compounds on a medium by Baar. All three types of soil are acid non-carbonate soils with a low level of available phosphorus and a more favorable amount of potassium, nitrogen, and humus. The largest number of bacteria, which transform organic phosphorus compounds, was found in calcocambisol. The largest number of phosphate solubilizing bacteria was recorded in pseudogley, whereas the largest number of phosphate solubilizing fungi was recorded in calcocambisol. The largest number of bacteria, which transform organic sulphur compounds, was recorded in pseudogley.
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GUPTA, RANI, REKHA SINGAL, APARNA SHANKAR, RAMESH CHANDER KUHAD, and RAJENDERA KUMAR SAXENA. "A modified plate assay for screening phosphate solubilizing microorganisms." Journal of General and Applied Microbiology 40, no. 3 (1994): 255–60. http://dx.doi.org/10.2323/jgam.40.255.

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Gomes, E. A., U. C. Silva, I. E. Marriel, C. A. Oliveira, and U. G. P. Lana. "Rock Phosphate Solubilizing Microorganisms Isolated from Maize Rhizosphere Soil." Revista Brasileira de Milho e Sorgo 13, no. 1 (2014): 69–81. http://dx.doi.org/10.18512/1980-6477/rbms.v13n1p69-81.

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Illmer, P., A. Barbato, and F. Schinner. "Solubilization of hardly-soluble AlPO4 with P-solubilizing microorganisms." Soil Biology and Biochemistry 27, no. 3 (1995): 265–70. http://dx.doi.org/10.1016/0038-0717(94)00205-f.

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Meena, Ram Swaroop, Prabhu Dayal Meena, Gulab Singh Yadav, and Surendra Singh Yadav. "Phosphate Solubilizing Microorganisms, Principles and Application of Microphos Technology." Journal of Cleaner Production 145 (March 2017): 157–58. http://dx.doi.org/10.1016/j.jclepro.2017.01.024.

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Hii, Yiik Siang, Chan Yen San, Shiew Wei Lau, and Michael Kobin Danquah. "Isolation and characterisation of phosphate solubilizing microorganisms from peat." Biocatalysis and Agricultural Biotechnology 26 (July 2020): 101643. http://dx.doi.org/10.1016/j.bcab.2020.101643.

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Thomas, Subin, and Dr M. Nandhini. "A Study on the Farmers’ Awareness and Acceptance of Biofertilizers in Kottayam District." GIS Business 14, no. 6 (2019): 425–31. http://dx.doi.org/10.26643/gis.v14i6.13572.

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Biofertilizers are fertilizers containing microorganisms that promote plant growth by improving the supply of nutrients to the host plant. The supply of nutrients is improved naturally by nitrogen fixation and solubilizing phosphorus. The living microorganisms in biofertilizers help in building organic matter in the soil and restoring the natural nutrient cycle. Biofertilizers can be grouped into Nitrogen-fixing biofertilizers, Phosphorous-solubilizing biofertilizers, Phosphorous-mobilizing biofertilizers, Biofertilizers for micro nutrients and Plant growth promoting rhizobacteria. This study conducted in Kottayam district was intended to identify the awareness and acceptance of biofertilizers among the farmers of the area. Data have been collected from 120 farmers by direct interviews with structured questionnaire.
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Avivi, Sholeh, Ida Sugeng Suyani, and Sugeng Winarso. "EFEK BAKTERI PELARUT FOSFAT TERHADAP PERTUMBUHAN ASPERGILLUS FLAVUS PADA PERKECAMBAHAN KACANG TANAH." Jurnal Hama dan Penyakit Tumbuhan Tropika 10, no. 1 (2010): 64–72. http://dx.doi.org/10.23960/j.hptt.11064-72.

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Effect of phosphate solubilizing microorganism to Aspergillus flavus development on peanut germination. Phosphate solubilizing microorganisms (PSM) are microorganisms which could increase the available P in plant media. The aim of this research is to determine the effect of PSM on A. flavus growth, and to identify it’s effects on the growth dynamics of A. flavus as long as the peanut germination. The research were conducted in the Laboratory of Plant Diseases Department, Faculty of Agriculture, University of Jember, from August 2005 to May 2006 and divided in 2 stages: in vitro and germination stage. Base on in-vitro stage we concluded that Bacillus subtilis strain SK had better inhibition toward the growth of A. flavus than Pseudomonas fluorescent strain GM. B. subtilis strain SK could inhibit A. flavus as much as 74%, whereas P. fluorescent strain GM was only reached 60% compared to control. Base on the germination stage, B. subtilis in the desiccator supernatant (BsDS) could increase the dry weight of root up to 24.1 g better than P. fluorescens strain GM and control. We also found that B. subtilis strain SK was more effective to change the availability of P on plant media.
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Patel, Taniya P. "Isolation and Screening of Zinc and Potassium Solubilizing Microorganisms from Different Rhizospheric Soil." International Journal for Research in Applied Science and Engineering Technology 9, no. VI (2021): 616–23. http://dx.doi.org/10.22214/ijraset.2021.36394.

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Zinc is considered as a crucial trace micronutrient for proper growth, reproduction and driving of many metabolic reactions in all crops. Potassium is classified as a macronutrient associated with movement of water and nutrients as well as enzyme activation. The present study was aimed for isolation and screening of zinc and potassium solubilizing microorganisms from different rhizospheric soil of rice. Eight different isolates- ZSB1, ZSB2, ZSB3, ZSB4, KSB1, KSB2, KSB3 and KSB4 were obtained and were screened for their Zinc and Potassium solubilizing activities on TRIS minimal agar medium and Aleksandrov’s medium, respectively. Upon characterization, ZSB1, ZSB4 and KSB3 were observed as motile Gram-negative organisms, ZSB2, KSB2 and KSB4 as motile Gram-positive organisms while ZSB3 and KSB1 had mycelial growth with some conidial spore. All isolates gave positive results for starch and lipid hydrolysis. In gelatin hydrolysis, only ZSB3, ZSB4, KSB1 and KSB2 gave positive results. The main purpose to obtain these zinc and potassium solubilizing microorganisms was for their use in plant growth promotion as biofertilizers to increase soil fertility and crop yield.
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Vasconcellos, Rafael Leandro Figueiredo de, Mylenne Calciolari Pinheiro da Silva, Carlos Marcelo Ribeiro, and Elke Jurandy Bran Nogueira Cardoso. "Isolation and screening for plant growth-promoting (PGP) actinobacteria from Araucaria angustifolia rhizosphere soil." Scientia Agricola 67, no. 6 (2010): 743–46. http://dx.doi.org/10.1590/s0103-90162010000600019.

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Actinobacteria are capable of playing several different roles in soil ecosystems. These microorganisms affect other organisms by producing secondary metabolites and are responsible for the degradation of different complex and relatively recalcitrant organic compounds. In our survey of actinobacteria isolated from the rhizosphere of Araucaria angustifolia, five culture media (AI, WYE, YCED, MSSC and LNMS) were compared for their effectiveness in isolating these microorganisms. When summing up all the isolates randomly obtained, we got 103 isolates. After isolation, the phosphate-solubilizing ability and the "in vitro" production of indole-acetic acid and chitinases were evaluated. The AI medium was ineffective for actinobacteria isolation, when it was compared with the other four culture media. Indole-acetic acid and chitinase were produced by respectively 36% and 24% of the strains tested. However, only 2% of the 103 strains presented some phosphate-solubilizing ability. These results demonstrate the biotechnological potential of these microorganisms.
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Qayum, Parwez, and J. D. Shaikh. "BIODIVERSITY OF PHOSPHATE SOLUBILIZING FUNGIISOLATED FROM AGRICULTURAL FIELDS OF MARATHWADA REGION." International Journal of Advanced Research 9, no. 07 (2021): 799–804. http://dx.doi.org/10.21474/ijar01/13179.

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Fungi are the core components of soil microorganisms, accounting for more of the soil biomass than bacteria, depending on soil depth and nutritional requirements. In the current study, phosphate solubilizing fungi were isolated from the soil of Maharashtras Marathwada area, and all fungal isolates were examined for their ability to solubilize phosphate.Only 11 fungal isolates out of a total of 40 were found to have P-solubilizing activity. After 48 hours of incubation, the fungal isolates Aspergillus niger (PQ9), Trichoderma spp (PQ36), and Penicillium spp (PQ19) demonstrated a considerable zone of solubilization with 34, 31 to 30 mm on selective agar medium. The potent phosphate solubilizing fungi were identified in 18SrRNA analysis.The study, therefore, proposed that these fungal species have strong phosphate solubilizing properties and can be used for excellent crop productivity as a biofertilizer.
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Souchie, Edson L., Orivaldo J. Saggin-Júnior, Eliane M. R. Silva, Eduardo F. C. Campello, Rosario Azcón, and Jose M. Barea. "Communities of P-solubilizing bacteria, fungi and arbuscular mycorrhizal fungi in grass pasture and secondary forest of Paraty, RJ - Brazil." Anais da Academia Brasileira de Ciências 78, no. 1 (2006): 183–93. http://dx.doi.org/10.1590/s0001-37652006000100016.

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Communities of P-solubilizing bacteria, fungi and arbuscular mycorrhizal fungi, were evaluated in two different ecosystems. Samplings taken from two areas of Atlantic forest, in Paraty - RJ, Brazil, one with a secondary forest and the other with a grass pasture were studied. Four growth media: GL (glucose and yeast extract), GES (glucose, soil extract, KNO3, CaCl2, MgSO4, NaCl, FeEDTA and micronutrients solution), GAGES (glucose, soil extract, arabinose, glycerol, CaCl2, MgSO4 and NaCl) and GELP (glucose, soil extract, yeast extract, peptone, CaCl2, MgSO4 and NaCl) were evaluated for the isolation of P-solubilizing microorganisms. The identification of P-solubilizing bacteria was based on 16 S rDNA sequence analysis, while the identification of P-solubilizing fungi and arbuscular mycorrhizal fungi was based on morphology. The greatest number of P-solubilizing bacteria was isolated using GL and GELP growth media. The greatest number of P-solubilizing fungi was isolated using GAGES and GES. The bacteria were identified as Enterobacteriaceae and Bacillus sp., while the P-solubilizing fungi were identified as Aspergillus sp. Glomus macrocarpum and Glomus etunicatum were the dominant mycorrhizal fungi in the secondary forest and grass pasture area, respectively.
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Dermiyati, Jeni Antari, Sri Yusnaini, and Sutopo Ghani Nugroho. "Perubahan Populasi Mikroroganisme Pelarut Fosfat pada Lahan Sawah dengan Sistem Pertanian Intensif menjadi Sistem Pertanian Organik Berkelanjutan." Journal of Tropical Soils 14, no. 2 (2013): 143–48. http://dx.doi.org/10.5400/jts.2009.v14i2.143-148.

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The research aimed to study the change of population of phosphate solubilizing microorganisms according to the application time of bokashi which were applied continously on organic paddy rice fields since years of 2000 up to 2006. The research was conducted in a Randomized Completely Block Design in four replicates. The treatments were without bokashi (control; with intensively application of NPK fertilizers), bokashi application for 3 planting seasons (12 t ha-1), bokashi application for 4 planting seasons (16 t ha-1), bokashi application for 7 planting seasons (28 t ha-1), and bokashi application for 9 planting seasons (36 t ha-1). The results showed that the population of phosphate solubilizing microorganisms were not affected by continously applied of bokashi and did not have correlations to organic carbon, total nitrogen, ratio C/N, soil pH, and soil water content. However, the phosphate solubilizing microorganisms had played a role in the availability of the soil available-P which were shown by increasing of paddy yields year by year, although the contribution of soil phosphorus from bokashi is a relatively low. Yet, the bokashi application on the organic paddy fields did not increase the soil availble-P because most of the P which was absorbed by the plants coming from residual P fertilizers either from bokashi or SP-36 which were intensevely given before.
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K., Lavane,. "Phosphate solubilizing microorganisms isolated from manoa soil in Oahu, Hawai’i." Can Tho University Journal of Science 05 (2017): 80. http://dx.doi.org/10.22144/ctu.jen.2017.009.

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Dandessa, Chala, and Ketema Bacha. "Review on Role of Phosphate Solubilizing Microorganisms in Sustainable Agriculture." International Journal of Current Research and Academic Review 6, no. 11 (2018): 48–55. http://dx.doi.org/10.20546/ijcrar.2018.611.006.

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Khan, Mohammad Saghir, Almas Zaidi, and Parvaze A. Wani. "Role of phosphate-solubilizing microorganisms in sustainable agriculture — A review." Agronomy for Sustainable Development 27, no. 1 (2007): 29–43. http://dx.doi.org/10.1051/agro:2006011.

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Gaind, S., and A. C. Gaur. "Thermotolerant phosphate solubilizing microorganisms and their interaction with mung bean." Plant and Soil 133, no. 1 (1991): 141–49. http://dx.doi.org/10.1007/bf00011908.

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Nautiyal, C. Shekhar. "An efficient microbiological growth medium for screening phosphate solubilizing microorganisms." FEMS Microbiology Letters 170, no. 1 (1999): 265–70. http://dx.doi.org/10.1111/j.1574-6968.1999.tb13383.x.

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Larasati, Ella Dewani, MG Isworo Rukmi, Endang Kusdiyantini, and R. Cinta Badia Ginting. "Isolasi dan Identifikasi Bakteri Pelarut Fosfat dari Tanah Gambut." Bioma : Berkala Ilmiah Biologi 20, no. 1 (2018): 1. http://dx.doi.org/10.14710/bioma.20.1.1-8.

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Phosphate (P) are macronutrients that necessary for growth and development of plants, But the availability of phosphate dissolved in the ground are very limited because trend is bound to minerals ground form phosphate complexs. One of the alternative to improve the efficiency of phosphate is by utilize phosphate solubilizing bacteria. Phosphate solubilizing bacteria is bacteria capable of dissolving phosphate that is not available become available, so that it can be absorbed by plants. Peat soils can be used as a source of phosphate solubilizing bacteria because , peat soils formed from litter and organic matter so, many microorganisms which live in peat soils one of them is a phosphate solubilizing bacteria. The aim of this research is to isolat, identify bacteria to species level using Biolog system GenIII Mircoplate, and test the ability of phosphate dissolution. The isolation is done with the methods spread plate in a media pikovkaya solid and testing the ability to isolat qualitatively glimpsed clear zone around colonies, measuring phosphate solubilizing index. testing the ability isolats quantitatively by measuring solubility phosphate using spektrofotometer, and identification isolats using Biolog System. Eighteen isolates phosphate solubilizing bacteria successfully obtained from of peat soils, two isolates of them potential in solubilizing phosphate, According to Biolog system the second isolates identified as Pseudomonas tolaasii (isolate PG2T.5) and a Bacillus pumilus (isolate PG3TT.2), each is about phosphate dissolved successive of 24,81 mg/L and 22,62 mg/L Key words: Peat Soil, Isolation, Phosphate Solubilizing Bacteria, Biolog System Identification
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Shams El-Deen, Rawia O., Samy A. M. Abd El-Azeem, Atef F. Abd Elwahab, and Saleh S. Mabrouk. "Effects of Phosphate Solubilizing Microorganisms on Wheat Yield and Phosphatase Activity." Egyptian Journal of Microbiology 55, no. 1 (2020): 71–86. http://dx.doi.org/10.21608/ejm.2020.20675.1137.

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D. Yalda, Bahjat. "PHOSPHATE SOLUBILIZING MICROORGANISMS 1 -EFFECT ON PHOSPHORUS AVAILABILITY TO WHEAT PLANT." Mesopotamia Journal of Agriculture 37, no. 2 (2009): 127–33. http://dx.doi.org/10.33899/magrj.2009.27401.

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Güneş, Adem, Nizamettin Ataoğlu, Metin Turan, Ahmet Eşitken, and Quirine M. Ketterings. "Effects of phosphate-solubilizing microorganisms on strawberry yield and nutrient concentrations." Journal of Plant Nutrition and Soil Science 172, no. 3 (2009): 385–92. http://dx.doi.org/10.1002/jpln.200800121.

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Kitamura, Keiko, Naoya Ohmura, and Hiroshi Saiki. "Isolation of coal-solubilizing microorganisms and utilization of the solubilized product." Applied Biochemistry and Biotechnology 38, no. 1-2 (1993): 1–13. http://dx.doi.org/10.1007/bf02916408.

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Er, F., and M. Ogut. "Survival of a Phosphate Solubilizing Microorganism in Ion-Sterile Carriers." Eurasian Chemico-Technological Journal 12, no. 3,4 (2010): 219. http://dx.doi.org/10.18321/ectj48.

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<p>A cold-tolerant phosphate solubilizing bacterium (PSB) was isolated from roots of ryegrass (<em>Lolium perenne</em> L.). Studies involving phosphate solubilization in liquid culture and survival of the PSB in non-sterile zeolite, leonardite, peat, rock phosphate, and an organic fertilizer were performed. The PSB was able to dissolve 163 ppm P with a simultaneous fall in pH (from 7.7 to 5.7) in Pikovskaya’s medium during a ten-day incubation. The number of PSB declined logarithmically in 28 <sup>o</sup>C incubation regardless of the carrier. The rate of decrease in PSB population was less pronounced in zeolite. However, the PSB’s population density increased up to 10<sup>9</sup> cfu g<sup>-1</sup>, and stayed in the range of 10<sup>8</sup> to 10<sup>9</sup> cfu g<sup>-1</sup> in zeolite and rock phosphate after 13-weeks of storage at +4 <sup>o</sup>C. The contaminant microorganisms also grew in the carriers, with population densities ranging between 10<sup>8</sup> to 10<sup>9</sup> cfu g<sup>-1</sup> at week-9. The suppression of the local microorganisms is required to increase the quality of organic fertilizer by the addition of PSB. Zeolite could be a good carrier, due to its large surface area and porosity, which allow high number of microorganisms to occupy.</p>
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López, Silvina, Graciela Pastorino, Ismael Malbran, and Pedro Balatti. "Enterobacteria isolated from an agricultural soil of Argentina promote plant growth and biocontrol activity of plant pathogens." Revista de la Facultad de Agronomía 118, no. 2 (2019): 022. http://dx.doi.org/10.24215/16699513e022.

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Bacteria promote growth by different mechanisms like phosphate (Pi) solubilization, Indol Acetic Acid (IAA) synthesis and siderophores production. The purpose of this study was to isolate bacteria that promote the growth of plants and may also act as antagonistic organisms of plant pathogens. Pi solubilizing microorganisms that were isolated from the soils of Tres Arroyos, Buenos Aires; were also able to synthesize IAA and produce siderophores. The ability of these bacteria to solubilize Pi was directly related with the synthesis of organic acids that lowered the pH and was not related with phosphatase activity. The ability of the organisms to solubilize Pi was indirectly related with the amount of soluble Pi present in the media. Though Pi solubilizing microorganisms are mainly associated with the rhizoplane exudates, in this case did not induce Pi solubilization. In addition to promote plant growth, these bacteria proved to be antagonistic of plant pathogens such as Fusarium graminearum and F. solani.
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Garzón, Andrea Fernández, Laura Patricia Perdomo Rivas, and Lizeth Manuela Avellaneda Torres. "Effect of management (ecological and conventional) on functional groups of soil microorganisms in coffee agroecosystems with different resilience to climate variability, Colombia." Acta Scientiarum. Biological Sciences 42 (May 19, 2020): e48620. http://dx.doi.org/10.4025/actascibiolsci.v42i1.48620.

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The effect of management (ecological and conventional) on functional groups of microorganisms of soil in agroecosystems with different resilience scores reported to climate variability in Anolaima, Colombia was evaluated. Were found clustering associated with management and cellulolytic bacteria and fungi abundances. No differences found in diversity of phosphate solubilizing or nitrogen-fixing microorganisms, related to management. The diversity of microbial functional groups was affected by the climatic condition of sampling season. Management was relevant in relationships between resilience scores to climate variability and cellulolytic microorganisms; in ecological agroecosystems, biodiversity knowledge, agroecological main structure, and the participation of farmers in organizations were important
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Jones, Imogen Anne, and Lovleen Tina Joshi. "Biocide Use in the Antimicrobial Era: A Review." Molecules 26, no. 8 (2021): 2276. http://dx.doi.org/10.3390/molecules26082276.

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Biocides are widely used in healthcare and industry to control infections and microbial contamination. Ineffectual disinfection of surfaces and inappropriate use of biocides can result in the survival of microorganisms such as bacteria and viruses on inanimate surfaces, often contributing to the transmission of infectious agents. Biocidal disinfectants employ varying modes of action to kill microorganisms, ranging from oxidization to solubilizing lipids. This review considers the main biocides used within healthcare and industry environments and highlights their modes of action, efficacy and relevance to disinfection of pathogenic bacteria. This information is vital for rational use and development of biocides in an era where microorganisms are becoming resistant to chemical antimicrobial agents.
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Rice, W. A., N. Z. Lupwayi, P. E. Olsen, D. Schlechte, and S. C. Gleddie. "Field evaluation of dual inoculation of alfalfa with Sinorhizobium meliloti and Penicillium bilaii." Canadian Journal of Plant Science 80, no. 2 (2000): 303–8. http://dx.doi.org/10.4141/p99-055.

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Field experiments were conducted at five sites to evaluate the effects of dual inoculation of alfalfa (Medicago sativa L.) with Sinorhizobium meliloti and Penicillium bilaii, a phosphorus-solubilizing fungus, on the yield and quality of alfalfa hay. Dual inoculation with S. meliloti strain NRG-34 and P. bilaii strain PB-50 increased nodule number and occupancy, but resulted in only small increases in hay yield and total nitrogen and phosphorus concentrations of hay compared with inoculation with S. meliloti alone. There was little response of alfalfa to phosphorus fertilizer at the sites, and this may partly explain the small effects of dual inoculation of the two microorganisms. There were no significant differences in nodulation, hay yield or hay nutrient concentrations between alfalfa inoculated with separate NRG-34 and PB-50 inoculant products and that inoculated with a co-cultured inoculant. This similarity in response supports use of a single effective delivery system for the two different rhizosphere microorganisms, which is of great practical relevance as producers are more likely to adopt technology that requires a single inoculation procedure than one requiring two separate inoculation procedures at planting time. Key words: Co-cultured inoculant, Medicago sativa, phosphorus-solubilizing microorganisms, Penicillium bilaii, Sinorhizobium meliloti
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Hedrich, Sabrina, Sören Bellenberg, René Kermer, et al. "Biotechnological Recovery of Valuable Metals from Lignite Ash." Advanced Materials Research 1130 (November 2015): 664–67. http://dx.doi.org/10.4028/www.scientific.net/amr.1130.664.

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Ashes from lignite combustion for power generation contain considerable amounts of strategic metals, metalloids and rare earth elements. Within the presented project bioleaching with different types of microorganisms was investigated to recover valuable metals from lignite ashes. An increased mobilization of several metals ions was observed with the gluconic acid-producing bacteriumAcetobacter methanolicusand the silicate-solubilizing bacteriumBacillus circulans. Most promising results were achieved with sulfuric acid-producing microorganisms and bioleaching could even be increased at higher temperatures or by reductive bioleaching using acidophilic, iron-reducing bacteria.
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Agic, Rukie, Mariјa Zdravkovska, Gordana Popsimonova, Daniela Dimovska, Zvezda Bogevska, and Margarita Davitkovska. "Yield and Quality of Beetroot (Beta vulgaris ssp. esculenta L. ) as a Result of Microbial Fertilizers." Contemporary Agriculture 67, no. 1 (2018): 40–44. http://dx.doi.org/10.2478/contagri-2018-0006.

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Summary The purpose of this study is to examine the effect of two different types of microbial fertilizers, namely Micro-Vita I (containing several groups of Azotobacter, nitrifying microorganisms and phosphate-solubilizing microorganisms) and Micro-Vita II (containing Azotobacter, nitrifying microorganisms, phosphate-solubilizing microorganisms and iron), on the yield and quality of beetroot (Beta vulgaris ssp. esculenta, cv Kestrel). Beetroots grown in the field without using microbial fertilizers served as the experimental control. The experiments were conducted in a field located in the village of Jurumleri, near Skopje, characterized by a well-drained and sandy soil, in 2013. The purpose of the study is to determine how different microbial fertilizers influence the production and quality of beetroot. The yields obtained were significantly higher in the beetroot grown using Micro-Vita II (69.43 t ha−1) and Micro-Vita I (58.13 t·ha−1) fertilizers, compared to the control yield (54.8 t/ha). The beetroot grown under the Micro-Vita I regime indicated significantly higher contents of vitamin C (6.86%), cellulose (13.79%) and protein (18.18%) compared to the control crops. Furthermore, the beetroot grown under the Micro-Vita II regime indicated significantly higher contents of vitamin C (14.71%), cellulose (27.59%), protein (44.62%), minerals (6.25%) and Fe (100%) compared to the control crops. According to the results obtained, the application of microbiological fertilizers is recommended for beetroot (cv. Kestrel), with regard to the beetroot quality and bioactive compounds, and can be used in organic farming.
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Alice, Mutiti Mweetwa, Ann Eckhardt Elizabeth, Elizabeth Stott Diane, et al. "Isolation and characterization of Chilembwe and Sinda rock phosphate solubilizing soil microorganisms." African Journal of Microbiology Research 8, no. 34 (2014): 3191–203. http://dx.doi.org/10.5897/ajmr2014.6923.

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Badawi, M. A. "ROLE OF PHOSPHORUS SOLUBILIZING MICROORGANISMS IN THE GROWTH OF DATE PALM TREES." Acta Horticulturae, no. 882 (December 2010): 115–20. http://dx.doi.org/10.17660/actahortic.2010.882.12.

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Kim, Yong-hak, Bumhan Bae, and Youn-kyoo Choung. "Optimization of biological phosphorus removal from contaminated sediments with phosphate-solubilizing microorganisms." Journal of Bioscience and Bioengineering 99, no. 1 (2005): 23–29. http://dx.doi.org/10.1263/jbb.99.23.

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Vassilev, Nikolay, Maria Vassileva, and Iana Nikolaeva. "Simultaneous P-solubilizing and biocontrol activity of microorganisms: potentials and future trends." Applied Microbiology and Biotechnology 71, no. 2 (2006): 137–44. http://dx.doi.org/10.1007/s00253-006-0380-z.

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Widawati, Sri. "AKTIVITAS ENZIM PELARUT FOSFAT DAN EFEKTIVITAS MIKROBA ASAL WAMENA UNTUK MENUNJANG PERTANIAN RAMAH LINGKUNGAN PADA DAERAH MARGINAL." Jurnal Teknologi Lingkungan 11, no. 3 (2016): 481. http://dx.doi.org/10.29122/jtl.v11i3.1194.

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The activity of phosphate solubilizing enzyme and the effectivity of microbe from Wamena for support agriculture of environmental friendliness at marginal area. Phosphate dissolution of enzyme by microbial effective in compost plus from Wamena forest was stored in the freezer for 4 years, have been conducted in Ecofisiology laboratory,Microbiology devision, Research Center for Biology, Indonesian Institute of Science. This research was conducted to know the microbial affectivity and the activity of phosphate solubilizing enzyme of 20 microorganisms in inoculants stored 4 years in refrigerated room and to support soil fertility and biofertilizer agent in organic farming system. This research used plate count methode for counting the amount of microbial population, Scinner method was used toanalizer enzyme of alkaline and acid PME-ase,and statistical analysis use Duncan methode. The storage of 20 inoculants invected 20microorganisms for 4 years in refrigerated room showed that the microbial activity still high with the amount of mean population 107 and the activity of phosphate solubilizing enzyme with mean diameter of clear zone (holozone) 1 cm – 2 cm. The effectivity and the highest activity of phosphate solubilizing enzyme were : Azotobacter indicus (A), Bacillus panthothenticus (D), Bacillus megaterium (M), Bacillus thuringiensis (O), Ceratia sp. (R),Chromobacterium lividum (G), Chromobacterium violaceum (S), Flavobacterium breve(T), Klebsiella aerogenes (H), Pseudomonas fluorescent (J), Rhizobium legurxinosarium (L), and the lowest were: Streptomyces sp. (I) .Key word: Alkaline and acid PMEase, Phosphate solubilizing bacteria,Biofertolizer
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Shaarani, Shalyda Md, Yap Shu Jia, Zatul Iffah Mohd Arshad, Rohaida Che Man, Siti Kholijah Abdul Mudalip, and Siti Zubaidah Sulaiman. "Isolation and Characterization of Bacteria from Earthworms’ Intestines." International Journal of Engineering & Technology 7, no. 4.30 (2018): 322. http://dx.doi.org/10.14419/ijet.v7i4.30.22295.

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Vermicomposting; breaking down of organic material by earthworms that feed on wastes and converts them to soil-like mass and liquid, is an alternative to reduce waste into the environment. Nitrogen fixing and Phosphorus solubilizing bacteria in the earthworms’ intestines are important in promoting plant growth by increasing the Nitrogen (N) and Phosphorus (P) uptake when used as biofertilizers. The objectives of this study are to isolate, identify and characterize N-fixing and P-solubilizing bacteria from the earthworms’ intestines. The preparation of vermibeds included the introduction of leachate taken from Sungai Ikan Landfill, Kuala Terengganu. Standard serial dilution procedure was performed to isolate the microorganisms. Next, identification and characterization of bacteria were conducted via gram staining and bacteria morphological characteristic studies. Qualitative screening of N-fixing bacteria was performed by Hach Method 8039 while screening of P-solubilizing bacteria used Pikovskaya’s Agar containing insoluble tri-calcium phosphate (TCP). Six isolates, (A1, A2, B1, B2, C1 and D1) were successfully isolated. However, only single colony of A1, A2, B1 and B2 were obtained. All were gram negative and bacilli except for A1. A2 showed the highest nitrogen fixing and phosphate solubilizing activity though with the nitrate content (148.6 mg/L) and high phosphate solubilization efficiency (10.6).
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