Aspergillus aculeatus as a rock phosphate solubilizer

Narsian, Varsha; Patel, H. H.

doi:10.1016/s0038-0717(99)00184-4

Cited by 138 publications

(72 citation statements)

References 7 publications

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“…These results are further supported by Narsian and Patel (2000), who tested the effects of known chelators including EDTA, DTPA, NTA, aluminon, and oxine, on PR solubilization. This study concluded that PR solubilization was related to the functional groups of the chelators, particularly carboxylic and phenolic hydroxyls.…”

Section: Chelationmentioning

confidence: 54%

Plant- and microbial-based mechanisms to improve the agronomic effectiveness of phosphate rock: a review

Arcand

Schneider

2006

An. Acad. Bras. Ciênc.

175

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Defi ciency in plant-available phosphorus is considered to be a major limiting factor to food production in many agricultural soils. Mineral resources are necessary to restore soil phosphorus content. In regions where conventional fertilizers are not used due to cost limitations or to mitigate adverse environmental effects, local sources of phosphate rock are being increasingly recognized for potential use as alternative phosphorus fertilizers. The main obstacle associated with using directly applied ground phosphate rock is that the phosphate released is often unable to supply suffi cient plant-available phosphorus for crop uptake. Plantand microbial-based mechanisms are low-cost, appropriate technologies to enhance the solubilization and increase the agronomic effectiveness of phosphate rock. Common mechanisms of phosphate rock dissolution including proton and organic acid production will be reviewed for both plants and microorganisms. This review will also address possibilities for future research directions and applications to agriculture, as well as highlight ongoing research at the University of Guelph, Guelph, Canada.

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Section: Chelationmentioning

confidence: 54%

Plant- and microbial-based mechanisms to improve the agronomic effectiveness of phosphate rock: a review

Arcand

Schneider

2006

An. Acad. Bras. Ciênc.

175

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“…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. Chuang et al, (2007) report that, regarding A. niger, when Ca-P was used as the source of P, they detected gluconic acid; when the phosphoric source was Fe-P or Al-P, they detected oxalic acid.…”

Section: Discussionmentioning

confidence: 99%

“…For this reason, it is necessary to apply high doses of soluble fertilizers to reach the necessary concentrations of P in the soil solution (Narsian and Patel, 2000;Vassilev et al, 2012). One problem of intensive agriculture is that the fertilizers applied are expensive and their efficiency is very low (Vassilev and Vassileva, 2003;Paiva-Coutinho et al, 2012), making it unsustainable.…”

Section: Introductionmentioning

confidence: 99%

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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“…Bakteri pelarut fosfat (BPF) merupakan kelompok bakteri yang dapat melarutkan P yang terjerap permukaan oksidaoksida besi dan almunium sebagai senyawa Fe-P dan Al-P (Hartono, 2000). Efek pelarutan disebabkan oleh adanya produksi asam organik seperti asam asetat, asam format, asam laktat, asam oksalat, asam malat dan asam sitrat yang dihasilkan oleh mikroba tersebut (Narsian dan Patel 2000). BPF juga melarutkan P dengan mekanisme pengeluaran enzim.…”

Section: Pendahuluanunclassified

PENGARUH INOKULASI CAMPURAN ISOLAT BAKTERI PELARUT FOSFAT INDIGENUS RIAU TERHADAP PERTUMBUHAN DAN PRODUKSI TANAMAN KEDELAI (Glycine max L. Merr)

Alfiah

Zul

Nelvia

2017

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Aspergillus aculeatus as a rock phosphate solubilizer

Cited by 138 publications

References 7 publications

Plant- and microbial-based mechanisms to improve the agronomic effectiveness of phosphate rock: a review

Plant- and microbial-based mechanisms to improve the agronomic effectiveness of phosphate rock: a review

In vitro DISSOLUTION OF ACIDULATED ROCK PHOSPHATE BY PHOSPHATE SOLUBILIZING MICROORGANISMS

PENGARUH INOKULASI CAMPURAN ISOLAT BAKTERI PELARUT FOSFAT INDIGENUS RIAU TERHADAP PERTUMBUHAN DAN PRODUKSI TANAMAN KEDELAI (Glycine max L. Merr)

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