Microbial phytase activity and their role in organic P mineralization

Azeem, Muhammad; Riaz, Adnan; Chaudhary, A.N.; Hayat, Rifat; Hussain, Qaiser; Tahir, Muhammad Ibrahim; Imran, Muhammad

doi:10.1080/03650340.2014.963796

Cited by 64 publications

(46 citation statements)

References 122 publications

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“…Their abundance was significantly correlated with alkaline phosphomonoesterase activity (Luo et al, 2017). Kyrpidia comprises only one species, K. tusciae, known as Bacillus tusciae formerly (Klenk et al, (Azeem et al, 2015).…”

Section: Soil Microbial Taxa Contributing To the Differential P Acquimentioning

confidence: 99%

Contrasting P acquisition strategies of the bacterial communities associated with legume and grass in subtropical orchard soil

Yang

Zhu

Yao

2018

Environ Microbiol Rep

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Phosphorus (P) cycling is a fundamental process driven by microorganisms, and plants can regulate P cycling directly or via their influence on the soil microbial community. However, the differential P cycling patterns associated with legumes and grass are largely unknown. Therefore, we investigated the microbial community involved in P cycling in subtropical soil grown with stylo (Stylosanthes guianensis, legume) or bahiagrass (Paspalum notatum, grass) using metagenomic sequencing. P fractionation indicated that sparingly soluble inorganic P (Pi) accounted for approximately 75% of P pool. Bacteria involved in sparingly soluble Pi solubilization (pqq, gad, JEN) were more abundant in bahiagrass soil, with Candidatus Pelagibacter, Trichodesmium, Neorickettsia, Nitrobacter, Paraburkholderia, Candidatus Solibacter, Burkholderia as major contributors. In contrast, bacteria involved in organic P (Po) mineralization (php, glpQ, phn) were more abundant in stylo soil, consistent with phosphatase activity and Frankia, Kyrpidia, Thermobispora, Streptomyces, Rhodococcus were major contributors. Bacteria taking up low molecular-weight Po were more abundant in stylo soil than in bahiagrass soil, while those taking up Pi were less abundant. These data suggest that bacterial communities associated with legumes and grass develop contrasting P acquisition strategies, highlighting the possibility of intercropping with legumes and grass for better P cycling.

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Section: Soil Microbial Taxa Contributing To the Differential P Acquimentioning

confidence: 99%

Contrasting P acquisition strategies of the bacterial communities associated with legume and grass in subtropical orchard soil

Yang

Zhu

Yao

2018

Environ Microbiol Rep

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“…Sources of phytases may include plants, animals and microorganism (Azeem et al, 2015). However, microbial extracellular phytases are more promising due to easy isolation.…”

Section: Introductionmentioning

confidence: 99%

Screening, Characterization and Physicochemical Optimization of Phosphorus Solubilization Activity of Potential Probiotic Lactobacillus spp.

Arif¹

2018

PVJ

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Present study was designed to develop indigenous phytate hydrolyzing probiotic Lactobacilli to increase phosphorous availability in poultry gut with ultimate goal of efficient and enhanced poultry production. A total of 90 Lactobacilli were isolated from indigenous poultry droppings and homemade fermented milk products. Lactobacilli were screened for phytate hydrolyzing ability and enzyme activities were measured calorimetrically by ammonium molybdate assay. Out of 62 isolates showing phytate hydrolysis, 16 were confirmed by cobalt chloride staining. Out of 16, three isolates (PDP10, PDP24 and FYP38) were identified as Lactobacillus gallinarum, Lactobacillus reutri and Lactobacillus fermentum respectively, and further selected for physico-chemical optimization of phytase production. PDP10

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“…Several excellent reviews on microbial phytases have recently been published and are highly recommended [5] [6] [19]- [25]. This review focuses on phytase science from the perspective of its substrate, phytate.…”

Section: Introductionmentioning

confidence: 99%

Microbial Phytases and Phytate: Exploring Opportunities for Sustainable Phosphorus Management in Agriculture

Balaban¹,

Suleimanova²,

Valeeva³

et al. 2017

AJMB

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Myo-inositol phosphates (phytates) are important biological molecules produced largely by plants to store phosphorus. Phytate is very abundant in many different soils making up a large portion of all soil phosphorus. This review assesses current phytase science from the perspective of its substrate, phytate, by examining the intricate relationship between the phytate-hydrolyzing enzymes and phytate as their substrate. Specifically, we examine available data on phytate's structural features, distribution in nature and functional roles. The role of phytases and their localization in soil and plant tissues are evaluated. We provide a summary of the current biotechnological advances in using industrial or recombinant phytases to improve plant growth and animal nutrition. The prospects of future discovery of novel phytases with improved biochemical properties and bioengineering of existing enzymes are also discussed. Two alternative but complementary directions to increase phosphorus bioavailability through the more efficient utilization of soil phytate are currently being developed. These approaches take advantage of microbial phytases secreted into rhizosphere either by phytase-producing microbes (biofertilizers) or by genetically engineered plants. More research on phytate metabolism in soils and plants is needed to promote environmentally friendly, more productive and sustainable agriculture.

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Microbial phytase activity and their role in organic P mineralization

Cited by 64 publications

References 122 publications

Contrasting P acquisition strategies of the bacterial communities associated with legume and grass in subtropical orchard soil

Contrasting P acquisition strategies of the bacterial communities associated with legume and grass in subtropical orchard soil

Screening, Characterization and Physicochemical Optimization of Phosphorus Solubilization Activity of Potential Probiotic Lactobacillus spp.

Microbial Phytases and Phytate: Exploring Opportunities for Sustainable Phosphorus Management in Agriculture

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