Effect of nitrogen source on the solubilization of different inorganic phosphates by an isolate of Penicillium rugulosum and two UV-induced mutants

Reyes, Isbelia

doi:10.1016/s0168-6496(98)00119-6

Cited by 61 publications

(84 citation statements)

References 23 publications

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“…On the other hand, Reyes et al, (1999) and Yadav and Tarafdar (2003) found a negative correlation between microbial dry mass and the concentration of soluble P obtained from the dissolution of RP. This coincides with the results obtained in the present study, since the RP with the greatest dissolution (Norte de Santander RP) generated a lower microbial dry mass than that found with the Boyaca RP.…”

Section: Discussionmentioning

confidence: 93%

“…Evidence of these mechanisms in the present study is seen in the decrease in pH from an initial value of 5.09 to 3.58 with the use of A. niger. In regards to this fungus, there are authors who speak of the production of organic acids, particularly citric, oxalic and gluconic acids, as its dissolution mechanism (Sperber, 1958;Illmer and Schinner, 1995;Reyes et al, 1999;Seshadri et al, 2004). Narsian and Patel (2000), Reddy et al, (2002), Barroso and Nahas (2005) and Mittal et al, (2008) reported that relative efficiency in the dissolution of RP depends on the type of RP and the type of microorganism, as well as the quantity and quality of the acid secreted into the medium.…”

Section: Discussionmentioning

confidence: 99%

“…Microbial growth was expressed as dry microbial material produced per Erlenmeyer and was determined as weight lost after incineration at 500°C for five hours. This method was selected in order to avoid overestimation of weight due to the adherence of the microorganisms to the RP (Reyes et al, 1999;Habte and Osorio 2012;Mendes et al, 2014).…”

Section: Methodsmentioning

confidence: 99%

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In vitro DISSOLUTION OF ACIDULATED ROCK PHOSPHATE BY PHOSPHATE SOLUBILIZING MICROORGANISMS

Quevedo

Osório

Murillo³

2014

Acta biol. Colomb.

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The low availability of phosphorus (P) in the soil and the high cost of P fertilization are factors that limit agricultural productivity. A biotechnological alternative for to handle this problem is to use soil microorganisms capable of dissolving rock phosphate (RP), thus improving its effectiveness as a P fertilizer. This study was carried out with the objective of determining the effectiveness of Aspergillus niger -As-, Penicillium sp. -Pn-, Bacillus sp -B-. and an unidentified actinomycete -At-in the in vitro dissolution of two partially acidulated rock phosphates. The treatments consisted of 2x16 factorial arrangement [2 levels of RP: either Boyaca RP or Norte de Santander RP; 16 levels of inoculum: an uninoculated control, individual inoculations (with As, Pn, B, At), dual inoculations (AsPn, AsB, AsAt, PnB, PnAt, BAt), triple inoculations (AsPnB, AsPnAt, AsBAt, PnBAt), and quadruple inoculation (AsPnBAt)]. Each treatment was replicated three times. It was found that the microbial effectiveness in the in vitro dissolution of RP depended on the type of RP, the composition of the inoculum used and the interaction of both factors. The best results were obtained with the Norte de Santander RP and A. niger used alone. When this fungus combined with the other microorganisms, its capacity to dissolve RP was significantly reduced. Keywords: Aspergillus niger, Bacillus sp., biofertilizer, phosphate, Penicillium sp. RESUMENLa baja disponibilidad de fósforo (P) en el suelo y el costo de la fertilización fosfórica son limitantes para la productividad agrícola. Una alternativa biotecnológica para manejar este problema es mediante el uso de microorganismos del suelo capaces de disolver rocas fosfóricas (RP) y así mejorar su efectividad como fertilizante fosfórico. Con este fin se realizó un ensayo para determinar la efectividad microbial en la disolución in vitro de dos RP (Norte de Santander y Boyacá) parcialmente aciduladas. Los tratamientos consistieron en un arreglo factorial 2x16 [2 niveles de RP: Boyacá o Norte de Santander; 16 niveles de inóculo: Un control no inoculado, inóculos individuales (Aspergillus niger -As-, Penicillium sp. -Pn-, Bacillus sp. -B-, y un actinomiceto no identificado -At-), inóculos dobles (AsPn, AsB, AsAt, PnB, PnAt, BAt), inóculos triples (AsPnB, AsPnAt, AsBAt, PnBAt), e inóculos cuádruples (AsPnBAt)]. Cada tratamiento tuvo tres replicas. La efectividad en la disolución in vitro de RP fue dependiente del tipo de RP, tipo de inóculo y la interacción de ambos factores, teniendo mejores resultados con la RP del Norte de Santander y A. niger sólo. Cuando este hongo se combinó con otros microorganismos su capacidad para disolver RP se redujo significativamente.

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Section: Discussionmentioning

confidence: 93%

Section: Discussionmentioning

confidence: 99%

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In vitro DISSOLUTION OF ACIDULATED ROCK PHOSPHATE BY PHOSPHATE SOLUBILIZING MICROORGANISMS

Quevedo

Osório

Murillo³

2014

Acta biol. Colomb.

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“…The commonly isolated phosphate solubilizing bacteria (PSB) generally belong to the genera Bacillus or Pseudomonas (Peix et al 2004;Chen et al 2006). In addition, a number of fungal species solubilize P; these species generally belong to the genera Aspergillus or Penicillium (Reyes et al 1999;Vazquez et al 2000). The significant positive correlation between utilization of RP by plants and the population density of PSB enhanced by compost amendments in Andosols was shown by Wickramatilake et al (2010).…”

Section: Introductionmentioning

confidence: 99%

Compost amendment enhances population and composition of phosphate solubilizing bacteria and improves phosphorus availability in granitic regosols

Wickramatilake

Munehiro

Nagaoka

et al. 2011

Soil Science and Plant Nutrition

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This study was conducted to investigate the relationship between available phosphorus (P) in granitic regosols and the population and composition of phosphate solubilizing bacteria (PSB) enhanced by compost amendments. Enrichment of soil with rock phosphate (RP) or no enrichment was combined with poultry manure (PM), cattle manure (CM), sewage sludge (SS), or P-adjusted sawdust (PSD) compost amendments at a rate equivalent to 5 mg P kg À1 soil, or without compost amendment. Soil was enriched with RP at 0.25 or 0.5 g kg À1 soil in the pot experiment and 0.5 g kg À1 soil in the incubation experiment. The amended soils were used to grow African millet (Eleusine coracana Gaertn, cv. Yukijirushi) for 30 days in Wagner's pots (200 cm 2 ). Plant P uptake in RP-enriched soil at 0.25 g RP kg À1 soil was 2-3-fold greater with compost addition than without compost. The results of the incubation experiment showed that compost amendments significantly enhanced microbial biomass P and population density of PSB, which showed significant positive correlation with the available P in soil. The dominant isolates of PSB in all the compost treatments were closest to Burkholderia fungorum. The treatment-specific isolates of PSB with the type of compost amendment were closely related to Burkholderia phytofirmans in PM treatment, Burkholderia caledonica or Arthrobacter ramosus in SS treatment and Burkholderia phenazinium in PSD treatment. The enhanced available P in RP-enriched treatments could be related to specific isolates of PSB in each compost treatment.

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“…Whitelaw et al (1999) verificaram que Penicillium radicum solubilizou Ca 3 (PO 4 ) 2 , CaHPO 4 , FePO 4 .4H 2 O e AlPO 4 em meio líquido. Reyes et al (1999) encontraram correlação positiva entre a solubilização de fosfatos por Penicillium rugulosum e a produção de ácido glucônico ou cítrico.…”

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Solubilização de fosfatos em meios sólido e líquido por bactérias e fungos do solo

Souchie

Azcón

Barea

et al. 2005

Pesq. agropec. bras.

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Resumo -O objetivo deste trabalho foi avaliar a capacidade e a eficiência de solubilização de CaHPO 4 , AlPO 4 e apatita de Araxá em meio sólido, e de AlPO 4 e apatita de Araxá em meio líquido, por fungos (Aspergillus) e bactérias (Enterobacteriaceae) do solo. Em meio sólido, todos solubilizaram CaHPO 4 , nenhum solubilizou apatita de Araxá e apenas o isolado de fungo FSF 7 solubilizou AlPO 4 . Em meio líquido, todos solubilizaram AlPO 4 e apatita de Araxá. A seleção de solubilizadores deve ser feita com a quantificação do potencial de solubilização em meio líquido.Termos para indexação: Aspergillus, enterobactérias, fósforo, meio de cultivo, apatita. Phosphate solubilization in solid and liquid media by soil bacteria and fungiAbstract -The objective of this work was to evaluate the ability and efficiency of solubilization of CaHPO 4 , AlPO 4 and Araxá apatite in solid medium, and AlPO 4 and Araxá apatite in liquid medium. Soil P-solubilizing fungi (Aspergillus) and P-solubilizing bacteria (Enterobacteriaceae) were tested. In solid medium, all isolates solubilized CaHPO 4 , not any isolate solubilized Araxá apatite, and one fungus isolate (PSF 7) solubilized AlPO 4 . In liquid medium, all isolates solubilized AlPO 4 and Araxá apatite. Screening of P-solubilizing microorganisms must be done by quantifying their potential of phosphate solubilization in liquid growth medium.

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Effect of nitrogen source on the solubilization of different inorganic phosphates by an isolate of Penicillium rugulosum and two UV-induced mutants

Cited by 61 publications

References 23 publications

In vitro DISSOLUTION OF ACIDULATED ROCK PHOSPHATE BY PHOSPHATE SOLUBILIZING MICROORGANISMS

In vitro DISSOLUTION OF ACIDULATED ROCK PHOSPHATE BY PHOSPHATE SOLUBILIZING MICROORGANISMS

Compost amendment enhances population and composition of phosphate solubilizing bacteria and improves phosphorus availability in granitic regosols

Solubilização de fosfatos em meios sólido e líquido por bactérias e fungos do solo

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