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Articles de revues sur le sujet "Solubilizing microorganisms"

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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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Thèses sur le sujet "Solubilizing microorganisms"

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Pasqualini, Diego. "Inoculação de fungos micorrízicos arbusculaes e bactérias solubilizadoras de fosfato como alternativas para agricultura familiar e recomposição florística." Universidade do Estado de Santa Catarina, 2013. http://tede.udesc.br/handle/handle/594.

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Made available in DSpace on 2016-12-08T15:50:04Z (GMT). No. of bitstreams: 1 PGMS13DA016.pdf: 762204 bytes, checksum: 51d4b0b6a684c027977c08cf9ff670a1 (MD5) Previous issue date: 2013-05-21<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>The use of microorganisms that help plant nutrition and growth is an important alternative to the use of chemical fertilizers. This study was divided into four distinct works, the first is related to the multiplication of mycorrhizal inoculant using the on farm method with pre inoculated plants, the second study involves the production of mycorrhizal inoculum using the on farm methodology and its application incorn,, the third evaluated the process of single or dual inoculation of phosphate solubilizing bacteria and arbuscular mycorrhizal fungi (AMF) in two forest species, and the fourth assessed the mycorrhizal dependency of the two forest species. The overall goal was to improve existing technologies for the use of soil microorganisms capable of providing better P uptake by plants. For the first experiment, pre inoculated sorghum plants were transplanted into bags with a capacity of 20L. After 3 months of growth under field conditions, the mycorrhizal inoculum potential, root mycorrhizal colonization and number of spores were evaluated. For the second experiment, we used field soil mixed with vermiculite (1:1) in 20 L bags.. Each bag received 10% of AMF inoculum mixed with the soil : vermiculite mix and seeded with oats as the host plant. After 3 months,this inoculums was used in corn to evaluate its effect on plant productivity. The third work was the isolation of phosphate solubilizing bacteria from soils near spring waters and forests in the municipality of Laurentino SC and subsequent inoculation (single or dual) with the AMF Rhizophagus clarus, in Acca sellowiana and Citharexilum myrianthum, under greenhouse and field conditions. The fourth experiment was conducted in a greenhouse where the Acca sellowiana and Citharexylum myrianthum were grown in 3 different levels of soil P and 4 mycorrhizal treatments (Rhizophagus clarus, Claroideoglomus etunicatus, Dentiscutata heterogama and control). After 3 months the experiment was collected and the mcyorrhizal dependency calculated. Results demonstrate that the process of dual inoculating of phosphate solubilizing bacteria and AMF was benefit to both forest species tested. Considering the production of mycorrhizal inoculant using the on farm method, it was demonstrated that: i)both method of inoculation (pre colonized plants and direct inoculation)increased the mycorrhizal inoculum potential, ii) the inoculant is feasible to apply, and iii) using on farm inoculant produced by direct inoculaton increased corn productivity.. Both forest species varied in their mycorrhizal dependency and the highest values were obtained when inoculated with Rhizophagus clarus compared to other two isolates.. The technologies studied here have shown the benefit although further studies are still nee de in order to be applied commercially<br>O uso de microrganismos que auxiliam na nutrição e no crescimento de plantas é uma importante alternativa ao uso de fertilizantes químicos. O presente estudo foi dividido em quatro trabalhos distintos, sendo o primeiro relacionado a multiplicação de inoculante micorrízico pelo método on farm com plantas pré inoculadas, o segundo relacionada a multiplicação de inóculo pelo método on farm e sua aplicação na cultura do milho, o terceiro tratou de processos de inoculação conjunta e isolada de bactérias solubilizadoras de fosfato e fungos micorrízicos arbusculares (FMAs) em duas espécies florestais e o quarto avaliou a dependência micorrízica das duas espécies florestais. Sendo assim, o objetivo geral foi aprimorar tecnologias já existentes na utilização de microrganismos do solo capazes de propiciar melhor absorção de P pelas plantas. Para o primeiro experimento foram utilizadas plantas de sorgo pré-inoculadas para multiplicação de inoculante em sacos de mudas com capacidade de 20L. Após 3 meses de crescimento em condições de campo foi avaliado o potencial de inóculo micorrízico, porcentagem de colinização radicular e número de esporos produzidos. Para o segundo experimento, foi utilizado solo do campo misturado com vermiculita (1:1) acondicionados em sacos de 20L. Cada saco recebeu 10% de inoculo contendo FMA adicionado de forma direta e com planta hospedeira utilizou-se aveia. Após 3 meses o inoculante produzido via inoculação direta foi utilizado na cultura do milho para posterior avaliação de produtividade. O terceiro trabalho contou com o isolamento de bactérias solubilizadoras de fosfato de solos de áreas de nascente e de florestas do município de Laurentino-SC e posterior inoculação de 5 bactérias solubilizadoras de fosfato, de forma conjunta ou não, ao isolado de FMA Rhizophagus clarus, nas espécies florestais Acca sellowiana e Citharexilum myrianthum em condições de casa de vegetação e a campo. O quarto experimento foi realizado em condições de casa de vegetação onde as duas espécies florestais utilizadas no experimento 1 foram submetidas a crescimento em 3 níveis distintos de P no solo e 4 tratamentos de FMAs (Rhizophagus clarus, Claroideoglomus etunicatus, Dentiscutata heterogama e controle). Após 3 meses, o experimento foi coletado e analisada a dependência micorrízica. Os resultados obtidos demonstram que o processo de inoculação conjunta de bactérias solubilizadoras de fosfato e FMAs beneficiaram o crescimento das duas espécies florestais testadas. Em relação a produção on farm de inoculante micorrízico, as duas metodologias apresentaram resultados positivos no aumento do potencial de inoculo micirrízico dos inoculantes produzidos, foram de fácil aplicabilidade e a utilização de inoculante multiplicado via inoculação direta proporcionou incremento significativo na produtividade do milho. As duas espécies florestais apresentaram variação na dependência micorrízica e o isolado R. clarus apresentou maiores valores absolutos em relação aos outros dois isolados testados. As tecnologias aqui estudadas, embora tenham demonstrado beneficio, ainda necessitam de estudos para poderem ser aplicadas de forma comercial
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Barroso, Cinthya Babá [UNESP]. "Produção de pellets livres e imobilizados e mecanismo de solubilização de fosfatos inorgânicos por Aspergillus niger." Universidade Estadual Paulista (UNESP), 2006. http://hdl.handle.net/11449/103916.

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Made available in DSpace on 2014-06-11T19:32:54Z (GMT). No. of bitstreams: 0 Previous issue date: 2006-10-19Bitstream added on 2014-06-13T19:03:38Z : No. of bitstreams: 1 barroso_cb_dr_jabo.pdf: 424873 bytes, checksum: c11fcf246d6ada6dcb329194e9814468 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>Devido a baixa disponibilidade de P no solo e a alta capacidade do fungo Aspergillus niger F111 em solubilizar fosfatos inorgânicos, este trabalho teve por objetivo geral avaliar a possibilidade de inocular no solo esporos ou pellets imobilizados com vista a prolongar sua habilidade de solubilização e averiguar o mecanismo de solubilização de fosfatos inorgânicos de Ca, Al e Fe por este fungo. Os pellets inoculados em meio de cultura agitado proporcionaram maior solubilização dos fosfatos, principalmente o fosfato de Fe por ser de baixa solubilidade. No solo, os pellets livres e imobilizados promoveram as maiores solubilizações de fosfato de Fe e maior produção de CO2. Avaliando-se o efeito da fonte de N, as seguintes proporções foram obtidas na solubilização dos fosfatos de Ca, glicina > Al, nitrato de amônio > Fe, ácido l-glutâmico. Os açúcares que mais solubilizaram os fosfatos foram manitol, maltose e d-galactose. Dentre os metais somente o FeCl3.6H2O promoveu maior solubilização do fosfato de Fe e os metais FeSO4.7H2O e FeCl3.6H2O promoveram maiores solubilizações do fosfato de Ca. As concentrações de álcoois que mais favoreceram a solubilização do fosfato de Fe foram 3 e 4% de etanol e metanol, para o fosfato de Ca foi 3% de etanol. A combinação dos metais com o metanol, indicou que o metanol foi o principal responsável pela solubilização. Fatores como queda do pH, a maior produção de ácidos e o menor crescimento do fungo influíram neste trabalho, principalmente em relação a solubilização do fosfato de Fe. No solo, os pellets solubilizaram quantidades semelhantes de fosfato de Fe que os esporos imobilizados de A. niger, podendo ser utilizados com vantagem devido a sua facilidade de obtenção.<br>Considering the low P availability in the soil and the high capability of Aspergillus niger F111 in solubilizing inorganic phosphates, this work aimed to evaluate the possibility of inoculating spores or immobilized pellets in the soil to prolong the solubilization capability and study the solubilization mechanism of inorganic calcium phosphate, aluminum phosphate and iron phosphate by this fungus. Pellets inoculated in culture medium under agitation allowed higher phosphate solubilization, especially iron phosphate, which is low soluble. In the soil, free and immobilized pellets allowed the highest solubilization of iron phosphate and CO2 production. Evaluating the effect of N sources, the following proportions were obtained in the solubilization of calcium phosphates, glycine > Al, ammonium nitrate > Fe, l-glutamic acid. The sugars that most solubilized phosphates were mannitol, maltose and d-galactose. Among the metals, only FeCl3.6H2O promoted higher iron phosphate solubilization, and FeSO4.7H2O and FeCl3.6H2O promoted higher solubilization of calcium phosphate. The alcohol concentrations that most favored iron phosphate solubilization were 3 and 4% of ethanol and methanol, while the highest solubilization of calcium phosphate was reached with 3% ethanol. The combination of metals with methanol indicated this alcohol was mainly responsible for solubilization. Factors as pH decrease, higher acid production and lower A. niger growth influenced the results, especially in the solubilization of iron phosphate. In the soil, pellets and immobilized spores solubilized similar amounts of iron phosphate. Pellets are thus preferable because they are more easily obtained.
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Barroso, Cinthya Babá. "Produção de pellets livres e imobilizados e mecanismo de solubilização de fosfatos inorgânicos por Aspergillus niger /." Jaboticabal : [s.n.], 2006. http://hdl.handle.net/11449/103916.

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Orientador: Ely Nahas<br>Banca: Regina Teresa Rosim Monteiro<br>Banca: Jonas Contiero<br>Banca: Antônio Carlos Monteiro<br>Banca: Lúcia Maria Carareto Alves<br>Resumo: Devido a baixa disponibilidade de P no solo e a alta capacidade do fungo Aspergillus niger F111 em solubilizar fosfatos inorgânicos, este trabalho teve por objetivo geral avaliar a possibilidade de inocular no solo esporos ou pellets imobilizados com vista a prolongar sua habilidade de solubilização e averiguar o mecanismo de solubilização de fosfatos inorgânicos de Ca, Al e Fe por este fungo. Os pellets inoculados em meio de cultura agitado proporcionaram maior solubilização dos fosfatos, principalmente o fosfato de Fe por ser de baixa solubilidade. No solo, os pellets livres e imobilizados promoveram as maiores solubilizações de fosfato de Fe e maior produção de CO2. Avaliando-se o efeito da fonte de N, as seguintes proporções foram obtidas na solubilização dos fosfatos de Ca, glicina > Al, nitrato de amônio > Fe, ácido l-glutâmico. Os açúcares que mais solubilizaram os fosfatos foram manitol, maltose e d-galactose. Dentre os metais somente o FeCl3.6H2O promoveu maior solubilização do fosfato de Fe e os metais FeSO4.7H2O e FeCl3.6H2O promoveram maiores solubilizações do fosfato de Ca. As concentrações de álcoois que mais favoreceram a solubilização do fosfato de Fe foram 3 e 4% de etanol e metanol, para o fosfato de Ca foi 3% de etanol. A combinação dos metais com o metanol, indicou que o metanol foi o principal responsável pela solubilização. Fatores como queda do pH, a maior produção de ácidos e o menor crescimento do fungo influíram neste trabalho, principalmente em relação a solubilização do fosfato de Fe. No solo, os pellets solubilizaram quantidades semelhantes de fosfato de Fe que os esporos imobilizados de A. niger, podendo ser utilizados com vantagem devido a sua facilidade de obtenção.<br>Abstract: Considering the low P availability in the soil and the high capability of Aspergillus niger F111 in solubilizing inorganic phosphates, this work aimed to evaluate the possibility of inoculating spores or immobilized pellets in the soil to prolong the solubilization capability and study the solubilization mechanism of inorganic calcium phosphate, aluminum phosphate and iron phosphate by this fungus. Pellets inoculated in culture medium under agitation allowed higher phosphate solubilization, especially iron phosphate, which is low soluble. In the soil, free and immobilized pellets allowed the highest solubilization of iron phosphate and CO2 production. Evaluating the effect of N sources, the following proportions were obtained in the solubilization of calcium phosphates, glycine > Al, ammonium nitrate > Fe, l-glutamic acid. The sugars that most solubilized phosphates were mannitol, maltose and d-galactose. Among the metals, only FeCl3.6H2O promoted higher iron phosphate solubilization, and FeSO4.7H2O and FeCl3.6H2O promoted higher solubilization of calcium phosphate. The alcohol concentrations that most favored iron phosphate solubilization were 3 and 4% of ethanol and methanol, while the highest solubilization of calcium phosphate was reached with 3% ethanol. The combination of metals with methanol indicated this alcohol was mainly responsible for solubilization. Factors as pH decrease, higher acid production and lower A. niger growth influenced the results, especially in the solubilization of iron phosphate. In the soil, pellets and immobilized spores solubilized similar amounts of iron phosphate. Pellets are thus preferable because they are more easily obtained.<br>Doutor
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Huang, Yi, and 黃翊. "Screening and evaluating the phosphate-solubilizing ability of bone-solubilizing microorganisms." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/63175099248198481982.

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碩士<br>國立中興大學<br>土壤環境科學系所<br>98<br>Phosphate fertilizer has been recognized as the most limiting element in agriculture production. Its natural resource, unfortunately, is also limited. The recycle of animal bone meal will be increased its importance for most country prohibiting it used as animal feed. The aim of this thesis was to screen microorganisms which can directly dissolve phosphate from the raw bone meal with no fat removal. The fat contained in raw bone meal is assumed to be the carbon source for the phosphate solubilizing microorganism. Aspergillus niger is evaluated as the only microorganism which meets the requiring that the microorganism can directly release the phosphorus from the raw bone meal of pig and goat, after screened 62 calcium phosphate solubilizing microorganisms from different resources. The main mechanism of A. niger dissolves the raw bone meal is the release of oxalic acid. In liquid media, A. niger dissolved more phosphate from the goat bone than from pig bone. The addition of extra nitrogen to lower the C/N ratio can improve the release of phosphate from goat bone, but no significant increase from pig bone. In pot experiment, although, the inoculation of A. niger increased soil available phosphate concentration of addition of all bone meal treatments, no positive effect of maize dry weight and phosphate uptake in maize shoot. These results are due to the high C/N ratio of both raw bone meals and there was no fertilizers applied except the addition of bone meals. The lower ammonium and nitrate concentrations of the bone meal addition treatments evidenced the assumption.
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chen, yi pei, and 陳煜沛. "Diversity and Database of Phosphate-Solubilizing Microorganisms." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/12020707835809243880.

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碩士<br>國立中興大學<br>土壤環境科學系<br>89<br>In soil, a lot of soluble inorganic phosphate is fixed and rapidly immobilized to forms which are unavailable to plants. The phosphate-solubilizing microorganisms (PSM) are capable of solubilizing insoluble inorganic phosphate into forms that can be utilized by plants. It is generally accepted that the major mechanism of mineral phosphate solubilization is the action of organic acids secreted by microorganisms. Our objective was to understand the diversity of phosphate-solubilizing microorganisms in the subtropical zone, Taiwan. Thirteen six strains were isolated and identified by sequencing partial 16S rDNA. Isolates were analysed by RAPD to examine in detail the divergence among genomes and the secreted organic acids were analyzed by HPLC. The results of 34 identified strains are Arthrobacter nicotinovorans, 1 strain, Arthrobacter ureafaciens, 5 strains, Bacillus sp., 10 strains, Chryseobacterium indoltheticum, 1 strain, Gordonia sp., 1 strain, Nocardioides simplex, 1 strain, Phyllobacterium rubiacearum, 1 strain, Rhodococcus erythropolis, 8 strains and Serratia sp., 5 strains. One unnamed organism (bc13) is close to cucurbit yellow vine disease bacterium in the alignment of RDP database. Another unnamed organism (bc21) shows no close relationship to any bacteria specie in RDP database. The unnamed organism (bc21) may be a new local strain in Taiwan. Among the identified strains, Arthrobacter nicotinovorans, Arthrobacter ureafaciens, Nocardioides simplex, Phyllobacterium rubiacearum and Rhodococcus erythropolis were not ever reported in their phosphate solubilizing capability. It is thus clear that phosphate-solubilizing microorganisms distribute widely. The result of RAPD analysis can be divided into 4 clusters. The correlation coefficient of isolates among populations, pH values and P-concentrations showed significance (P<0.05). Chryseobacterium indoltheticum (bc05) had a lot of P-concentrations (289.8 mgL-1) with middle pH value at 6.0. We found there was unknown3 substance in HPLC analysis. Whether unknown3 substance effected capability of solubilizing phosphate or other factors existed, that needs to research further. The more organic acids secreted and the more P-concentrations existed in the media which was clearly demonstrated in Arthrobacter nicotinovorans (bc03, bc34). Other isolates also produced more than one organic acid. Some organic acids secreted such as gluconic acid, citric acid, lactic acid, succinic acid, unknown1 and unknown2 were found among other strains. In this study, organic acids truly play an important role in solubilizing phosphate and these strains which we isolated in the subtropical zone, Taiwan, are divergent in genome and metabolism of organic acids.
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Chuang, Chun-Chao, and 莊浚釗. "Distribution and application of phosphate-solubilizing microorganisms in soils of northern Taiwan." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/93875913453139886216.

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博士<br>國立中興大學<br>土壤環境科學系所<br>95<br>Organic farming system has become more popular in Taiwan nowadays. In case that compost can be used in the farm soil, it could not only solve the pollution problem of agricultural wastes but also increase the soil fertility favorable for the crop production as well as for the multiplication of soil microorganisms. The purpose of this study was to evaluate the effect of organic and conventional farming on the population dynamics of soil microorganisms and soil fertility. Soil microorganisms with strongest phosphate-solubilizing capacity were isolated and their inoculation methods were also developed in this study. In order to determine the effect of phosphate-solubilizing microorganisms on the growth and nutrients uptake of Pai-tsai (Brassica campestris L. ssp. chinensis (L.) Makino) and cabbage (Brassica oleracea L. var. capitata L.), the rock phosphate and compost were applied in the field during inoculation of the soil microorganisms. The result showed the biomass nitrogen and microorganism population in organic farming soil were 2~3 times higher than those in conventional farming soil. However, the biomass nitrogen and microorganism population in vegetable field were 2~5 times higher than those in rice field. The population of microorganisms in rhizosphere soil was 6~20 times higher than those in non-rhizosphere soil. And the population of Ca-PSB, Fe-PSB, Ca-PSF and Fe-PSF microorganisms in organic farming rhizosphere soil was 4, 8, 7, and 10 times, respectively, as compared to those in non-rhizosphere soil. However, the population of Ca-PSB, Fe-PSB, Ca-PSF and Fe-PSF microorganisms in conventional farming rhizosphere soil was 5, 15, 9, and 6 times, respectively, as compared to those in non-rhizosphere soil. A total of 12 isolates performed strong phosphate-solubilizing capacity, 10 and 2 of them were bacteria and fungi, respectively. Drenching 10 ml plant-1 Pseudomonas spinosa strain TY6 suspension into the root zone of Pai-tsai after transplant, and drenching 10 ml tray-1 Aspergillus sp. SU4 suspension into root of Pai-tsai seeding were suitable inoculation method for the growth and nutrient uptake of Pai-tsai. Experimental results showed that Pai-tsai applying 15 g pot-1 compost and inoculated with 10 ml plant-1 Pseudomonas spinosa strain TY6 suspension increased fresh weights 6 g plant-1, dried weights 0.22 g plant-1, nitrogen uptake 17 mg plant-1 and phosphorous uptake 0.8 mg plant-1, respectively, as compared to non-inoculation treatments. Inoculating with 10 ml plant-1 Aspergillus sp. SU4 suspension could increase fresh weights 1 g plant-1, dried weights 0.02 g plant-1, phosphorous uptake 1.2 mg plant-1, respectively, as compared to non-inoculation treatments. In the study inoculation of 10 ml plant-1 Pseudomonas spinosa strain TY6 suspension into the root zone with the application of 10 t ha-1 composts for cabbage after transplant one month later. Showed that could give the best treatment, which increased the yield of cabbage 4.8 t ha-1, dry weights 0.43 t ha-1, nitrogen uptake 5 kg ha-1, phosphorus uptake 1.09 kg ha-1 and potassium uptake 13 kg ha-1, respectively, as compared to non-inoculation. And it has 5% significantly different among the treatments.
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Pateechob, Weerachat, and 彭勇俊. "Effects of Phosphate Solubilizing Microorganisms (PSMs) on Composting and Fertilizer Efficiency of Chicken manures." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/52968608299927238859.

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碩士<br>國立中興大學<br>土壤環境科學系所<br>103<br>The poultry industry is currently facing a number of environmental problems. One of the major problems is the accumulation of large amount of wastes, especially manure and litter, generated by intensive production voided by a layer as Large-scale accumulation of these wastes may pose disposal and pollution problems unless environmentally and economically. Sustainable management technologies are imperative for recycling these wastes (Power and Dick, 2000; Kelleher et al., 2002; Sharpley et al., 2007). Poultry manure contains all 13 of the essential plant nutrients that are used by plants. These include nitrogen (N), phosphorous (P), potassium (K), calcium (Ca), magnesium (Mg), sulfur (S), manganese (Mn), copper (Cu), zinc (Zn), chlorine (Cl), boron (B), iron (Fe) , and molybdenum (Mo). The amount of nutrients provided depends on the nutrient content of the manure and the amount of manure applied. Phosphorus is the most important key element in the nutrition of plants, next to nitrogen (N) and phosphate solubilizing microorganisms (PSMs) are an integral component of the soil P cycle and are important for the transfer of P between different pools of soil P (Khan et al. 2010). A greenhouse experiment was conducted to determine the effect of PSMs on composting egg chicken manures ECM1 (no PSMs) and ECM2 (add PSMs) and broiler chicken manures BCM1 (no PSMs) and BCM2 (add PSMs) during 14 days of composting process by control moisture at 55% - 60%. The compost sample at 0, 3, 5, 7, 11 and 14 days of composting were used to study their effects on seed germination and plant growth under greenhouse conditions. The results showed more than 80% of seed germination rate using compost extracts form the samples collected at 11 days of composting and more than 85% for those collected at 14 days of composting. PSMs showed survivability colony forming unit (CFU) after the temperature decrease to 45 °C temperature. ECM1 and ECM2 showed PSMs survivability CFU greater than BCM1 and BCM2. The compost samples collected at 0, 7 and 14 days of composting were used grow amaranth plants (Amaranthus mangostanus L.) and compare control1 (no fertilizer) and control2 (fertilizer). Plant grown in soil applied with twelve treatment (E1.0, E2.0, E1.7, E2.7, E1.14 and E2.14 of egg chicken manure composts and B1.0, B2.0, B1.7, B2.7, B1.14 and B2.14 of broiler chicken manure composts) showed better growth than two controls while plants supplied with broiler chicken manure composts showed better growth then those with egg chicken manure composts. In conclusion, phosphate solubilizing microorganisms (PSMs) survive in egg chicken manure composts better than in broiler chicken manure composts. Broiler chicken manures contain nutrients than egg chicken manures. Moreover, the temperature affects population density of phosphate solubilizing microorganisms (PSMs). Keywords: Phosphate solubilizing microorganisms, chicken manure compost, seed germination, Amaranthus mangostanus L., nutrient uptake, plant growth promoting phosphate solubilizing microorganisms.
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Li, Wen Yu, and 李文玉. "Availability of phosphorus in hog manure compost and a soil added with rock phosphate as affected by inoculating phosphate-solubilizing microorganisms." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/25709507138553012402.

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Livres sur le sujet "Solubilizing microorganisms"

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Khan, Mohammad Saghir, Almas Zaidi, and Javed Musarrat, eds. Phosphate Solubilizing Microorganisms. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-08216-5.

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Meena, Vijay Singh, Bihari Ram Maurya, Jay Prakash Verma, and Ram Swaroop Meena, eds. Potassium Solubilizing Microorganisms for Sustainable Agriculture. Springer India, 2016. http://dx.doi.org/10.1007/978-81-322-2776-2.

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Meena, Ram Swaroop, Vijay Singh Meena, Bihari Ram Maurya, and Jay Prakash Verma. Potassium Solubilizing Microorganisms for Sustainable Agriculture. Springer, 2018.

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Meena, Ram Swaroop, Vijay Singh Meena, Bihari Ram Maurya, and Jay Prakash Verma. Potassium Solubilizing Microorganisms for Sustainable Agriculture. Springer, 2016.

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Chapitres de livres sur le sujet "Solubilizing microorganisms"

1

Kuhad, Ramesh Chander, Surender Singh, Lata, and Ajay Singh. "Phosphate-Solubilizing Microorganisms." In Soil Biology. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-19769-7_4.

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Zaidi, Almas, Md Saghir Khan, and Ees Ahmad. "Microphos: Principles, Production and Application Strategies." In Phosphate Solubilizing Microorganisms. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-08216-5_1.

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Zaidi, Almas, Ees Ahmad, and Md Saghir Khan. "Role of Phosphate-Solubilizing Microbes in the Management of Plant Diseases." In Phosphate Solubilizing Microorganisms. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-08216-5_10.

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Panwar, Meenu, Rupinder Tewari, and Harsh Nayyar. "Microbial Consortium of Plant Growth-Promoting Rhizobacteria Improves the Performance of Plants Growing in Stressed Soils: An Overview." In Phosphate Solubilizing Microorganisms. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-08216-5_11.

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Rizvi, Asfa, Md Saghir Khan, and Ees Ahmad. "Inoculation Impact of Phosphate-Solubilizing Microorganisms on Growth and Development of Vegetable Crops." In Phosphate Solubilizing Microorganisms. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-08216-5_12.

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Khan, Md Saghir, Almas Zaidi, and Ees Ahmad. "Mechanism of Phosphate Solubilization and Physiological Functions of Phosphate-Solubilizing Microorganisms." In Phosphate Solubilizing Microorganisms. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-08216-5_2.

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Musarrat, Javed, and Md Saghir Khan. "Factors Affecting Phosphate-Solubilizing Activity of Microbes: Current Status." In Phosphate Solubilizing Microorganisms. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-08216-5_3.

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Sahoo, Hruda Ranjan, and Nibha Gupta. "Phosphate-Solubilizing Fungi: Impact on Growth and Development of Economically Important Plants." In Phosphate Solubilizing Microorganisms. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-08216-5_4.

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Yarzábal, Luis Andrés. "Cold-Tolerant Phosphate-Solubilizing Microorganisms and Agriculture Development in Mountainous Regions of the World." In Phosphate Solubilizing Microorganisms. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-08216-5_5.

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Saif, Saima, Mohammad Saghir Khan, Almas Zaidi, and Ees Ahmad. "Role of Phosphate-Solubilizing Actinomycetes in Plant Growth Promotion: Current Perspective." In Phosphate Solubilizing Microorganisms. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-08216-5_6.

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