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Designing a Waste-Based Culture Medium for the Production of Plant Growth Promoting Microorganisms Based on Cladodes Juice from Opuntia ficus-indica Pruning. FERMENTATION-BASEL 2022. [DOI: 10.3390/fermentation8050225] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The production of beneficial microorganisms is the first step to obtain a commercial-based product for application in agriculture. In this study, prickly pear (Opuntia ficus-indica) pruning waste was evaluated as a raw material for the production of large amounts of Plant Growth Promoting Microorganisms (PGPMs) reducing the number of generated wastes. Specifically, five PGPMs constituting a synthetic microbial consortium with complementing plant growth-promoting traits were grown on a laboratory scale and, subsequently, on a pilot scale using a 21-L bioreactor. Primarily, the physical-chemical characterization of the culture medium obtained from the juice of Opuntia cladodes was carried out, revealing the presence of sugars and organic acids with different molar ratios. Compared to conventional media, the waste medium did not show significant differences in bacterial growth efficiency. Instead, the survival rates of the bacteria grown in cladodes juice media, after air-drying on zeolite or freeze-drying, were significantly higher than those observed when they were grown in conventional media. The present work is the first conducted on a pilot-scale that maximizes the production of PGPMs in submerged fermentation using cladodes juice from Opuntia, reducing both economic and environmental impacts associated with the generation of wastes.
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2
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Tariq M, Jameel F, Ijaz U, Abdullah M, Rashid K. Biofertilizer microorganisms accompanying pathogenic attributes: a potential threat. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2022; 28:77-90. [PMID: 35221573 PMCID: PMC8847475 DOI: 10.1007/s12298-022-01138-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 11/30/2021] [Accepted: 01/14/2022] [Indexed: 05/04/2023]
Abstract
Application of biofertilizers containing living or dormant plant growth promoting bacterial cells is considered to be an ecofriendly alternative of chemical fertilizers for improved crop production. Biofertilizers opened myriad doors towards sustainable agriculture as they effectively reduce heavy use of chemical fertilizers and pesticides by keeping soils profuse in micro and macronutrients, regulating plant hormones and restraining infections caused by the pests present in soil without inflicting environmental damage. Generally, pathogenicity and biosafety testing of potential plant growth promoting bacteria (PGPB) are not performed, and the bacteria are reported to be beneficial solely on testing plant growth promoting characteristics. Unfortunately, some rhizosphere and endophytic PGPB are reported to be involved in various diseases. Such PGPB can also spread virulence and multidrug resistance genes carried by them through horizontal gene transfer to other bacteria in the environment. Therefore, deployment of such microbial populations in open fields could lead to disastrous side effects on human health and environment. Careless declaration of bacteria as PGPB is more pronounced in research publications. Here, we present a comprehensive report of declared PGPB which are reported to be pathogenic in other studies. This review also suggests the employment of some additional safety assessment protocols before reporting a bacteria as beneficial and product development.
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Affiliation(s)
- Mohsin Tariq
- Department of Bioinformatics and Biotechnology, Government College University Faisalabad, Faisalabad, Pakistan
| | - Farwah Jameel
- Department of Bioinformatics and Biotechnology, Government College University Faisalabad, Faisalabad, Pakistan
- National Institute for Biotechnology and Genetic Engineering, Faisalabad, Pakistan
| | - Usman Ijaz
- State Key Laboratory of Rice Biology and Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Muhammad Abdullah
- Department of Bioinformatics and Biotechnology, Government College University Faisalabad, Faisalabad, Pakistan
| | - Kamran Rashid
- Department of Bioinformatics and Biotechnology, Government College University Faisalabad, Faisalabad, Pakistan
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3
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Cantabella D, Dolcet-Sanjuan R, Solsona C, Vilanova L, Torres R, Teixidó N. Optimization of a food industry-waste-based medium for the production of the plant growth promoting microorganism Pseudomonas oryzihabitans PGP01 based on agro-food industries by-products. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2021; 32:e00675. [PMID: 34603978 PMCID: PMC8473457 DOI: 10.1016/j.btre.2021.e00675] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 08/13/2021] [Accepted: 09/07/2021] [Indexed: 01/03/2023]
Abstract
Several agro-food industry wastes based on potato peels and pulp (FPP), tomato seeds (TS) and cereals (WB) industries were tested for their feasibility in producing P. oryzihabitans PGP01. The production of P. oryzihabitans PGP01 in a medium based on FPP supplemented with 10 g L−1 of tryptone, 10 g L−1 of sugar cane molasses, 5 g L−1 nacl and 2.5 g L−1 of K2HPO4 allowed to reach similar growth than the commercial medium. In 2 L bioreactors, a maximum of 4.4 × 109 CFU mL−1 of P. oryzihabitans PGP01 was obtained after 24 h of growth in the optimized medium, similar than laboratory medium. P. oryzihabitans PGP01 grown on the optimized medium preserved its biological activity, maintaining the same effect on roots of in vitro cultured plantlets than when it was grown in the commercial medium. This study shows how to re-use food-industry wastes for microbial production, reducing the amount of generated wastes.
In this study, three wastes based on potato peels and pulps, tomato seeds and wheat bran were used as basis for the preparation of a cheap medium to produce the bacterium P. oryzihabitans PGP01. In flasks experiments, P. oryzihabitans PGP01 growth at 25 °C in a medium based on frozen potato peels and pulp (FPP) with tryptone as a nitrogen source resulted in the maximum production compared to the commercial TSB medium. In the scale-up to 2 L bioreactors, FPP supplemented with tryptone, molasses, NaCl and K2HPO4 allowed to reach similar biomass production than in the TSB medium. A maximum growth of 4.4 × 109 CFU mL−1 after setting the agitation and the air flux conditions at 400 rpm and 0.75 vvm. Finally, P. oryzihabitans PGP01 growing in this optimized medium conserved its biological activity showing the expected effect in root development previously reported for this microorganism.
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Affiliation(s)
- Daniel Cantabella
- IRTA Plant In Vitro Culture Laboratory, Fruticulture Programme Parc Científic i Tecnològic Agroalimentari de Lleida, 25003 Lleida, Catalonia, Spain.,IRTA Postharvest Programme; Edifici Fruitcentre, Parc Científic i Tecnològic Agroalimentari de Lleida, 25003 Lleida, Catalonia, Spain
| | - Ramon Dolcet-Sanjuan
- IRTA Plant In Vitro Culture Laboratory, Fruticulture Programme Parc Científic i Tecnològic Agroalimentari de Lleida, 25003 Lleida, Catalonia, Spain
| | - Cristina Solsona
- IRTA Postharvest Programme; Edifici Fruitcentre, Parc Científic i Tecnològic Agroalimentari de Lleida, 25003 Lleida, Catalonia, Spain
| | - Laura Vilanova
- IRTA Postharvest Programme; Edifici Fruitcentre, Parc Científic i Tecnològic Agroalimentari de Lleida, 25003 Lleida, Catalonia, Spain
| | - Rosario Torres
- IRTA Postharvest Programme; Edifici Fruitcentre, Parc Científic i Tecnològic Agroalimentari de Lleida, 25003 Lleida, Catalonia, Spain
| | - Neus Teixidó
- IRTA Postharvest Programme; Edifici Fruitcentre, Parc Científic i Tecnològic Agroalimentari de Lleida, 25003 Lleida, Catalonia, Spain
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Towards Sustainable Bioinoculants: A Fermentation Strategy for High Cell Density Cultivation of Paraburkholderia sp. SOS3, a Plant Growth-Promoting Bacterium Isolated in Queensland, Australia. FERMENTATION-BASEL 2021. [DOI: 10.3390/fermentation7020058] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Paraburkholderia sp. SOS3 is a plant growth-promoting bacterium (PGPB) that displays pleiotropic effects and has the potential to be applied at a large scale across several agronomically important crops. The use of SOS3 is a suitable option to reduce the use of chemical fertilisers. While the benefits of SOS3 have been demonstrated in vitro, its potential applications at large scale are limited due to low biomass yield in current batch culture systems. Here, we developed a strategy for high-cell density cultivation of SOS3 in instrumented bioreactors, moving from low-biomass yield in a complex medium to high-biomass yield in a semi-defined medium. We achieved a 40-fold increase in biomass production, achieving cell densities of up to 11 g/L (OD600 = 40). This result was achieved when SOS3 was cultivated using a fed-batch strategy. Biomass productivity, initially 0.02 g/L/h in batch cultures, was improved 12-fold, reaching 0.24 g/L/h during fed-batch cultures. The biomass yield was also improved 10-fold from 0.07 to 0.71 gbiomass/gsolids. Analysis of the fermentation profile of SOS3 indicated minimal production of by-products and accumulation of polyhydroxybutyrate (PHB) during the exponential growth phase associated with nitrogen limitation in the medium. By implementing proteomics analysis in fed-batch cultures, we identified the expression of four metabolic pathways associated with growth-promoting effects, which may be used as a qualitative parameter to guarantee the efficacy of SOS3 when used as a bioinoculant. Ultimately, we confirmed that the high-cell density cultures maintained their plant growth-promoting capacity when tested in sorghum and maize under glasshouse conditions.
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Romano I, Ventorino V, Ambrosino P, Testa A, Chouyia FE, Pepe O. Development and Application of Low-Cost and Eco-Sustainable Bio-Stimulant Containing a New Plant Growth-Promoting Strain Kosakonia pseudosacchari TL13. Front Microbiol 2020; 11:2044. [PMID: 33013749 PMCID: PMC7461993 DOI: 10.3389/fmicb.2020.02044] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 08/03/2020] [Indexed: 01/26/2023] Open
Abstract
The use of beneficial microbes as inoculants able to improve fitness, growth and health of plants also in stress conditions is an attractive low-cost and eco-friendly alternative strategy to harmful chemical inputs. Thirteen potential plant growth-promoting bacteria were isolated from the rhizosphere of wheat plants cultivated under drought stress and nitrogen deficiency. Among these, the two isolates TL8 and TL13 showed multiple plant growth promotion activities as production of indole-3-acetic acid (IAA), siderophores, ammonia, and 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase production, the ability to solubilize phosphate as well as exerted antimicrobial activity against plant pathogens as Botrytis spp. and Phytophthora spp. The two selected strains were identified as Kosakonia pseudosacchari by sequencing of 16S rRNA gene. They resulted also tolerant to abiotic stress and were able to efficiently colonize plant roots as observed in vitro assay under fluorescence microscope. Based on the best PGP properties, the strain K. pseudosacchari TL13 was selected to develop a new microbial based formulate. A sustainable and environmentally friendly process for inoculant production was developed using agro-industrial by-products for microbial growth. Moreover, the application of K. pseudosacchari TL13- based formulates in pot experiment improved growth performance of maize plants.
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Affiliation(s)
- Ida Romano
- Department of Agricultural Sciences, University of Naples Federico II, Naples, Italy
| | - Valeria Ventorino
- Department of Agricultural Sciences, University of Naples Federico II, Naples, Italy
| | - Patrizia Ambrosino
- Agriges S.r.l. - Nutrizione Speciale per L'Agricoltura Biologica e Integrata, San Salvatore Telesino, Italy
| | - Antonino Testa
- Department of Agricultural Sciences, University of Naples Federico II, Naples, Italy
| | - Fatima Ezzahra Chouyia
- Department of Agricultural Sciences, University of Naples Federico II, Naples, Italy.,Department of Biology, Faculty of Sciences and Techniques, Hassan II University of Casablanca, Casablanca, Morocco
| | - Olimpia Pepe
- Department of Agricultural Sciences, University of Naples Federico II, Naples, Italy
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Zhou S, Zeng X, Xu Z, Bai Z, Xu S, Jiang C, Zhuang G, Xu S. Paenibacillus polymyxa biofertilizer application in a tea plantation reduces soil N 2O by changing denitrifier communities. Can J Microbiol 2020; 66:214-227. [PMID: 32011910 DOI: 10.1139/cjm-2019-0511] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Increasing the use of nitrogen fertilizers in tea orchards has led to intense nitrous oxide (N2O) emissions. Foliar application of Paenibacillus polymyxa biofertilizer has been proven to be beneficial for organic tea production. In this study, tea yield and quality were significantly improved after application of P. polymyxa biofertilizer compared with the control but were not significantly different from chemical fertilizer treatments. However, the average N2O fluxes in tea fields treated with chemical fertilizers and biofertilizers (225 kg N·ha-1·year-1 for both) were 50.6-973.7 and 0.6-29.1 times higher than those in the control treatment, respectively. Pot experiments conducted to explore the mechanism of N2O reduction induced by P. polymyxa biofertilizer showed that applying P. polymyxa in addition to urea could reduce N2O fluxes by 36.5%-73.1%. Quantitative PCR analysis suggested that a significant increase in the quantity of nirK and nosZ genes was linked to the reduction of N2O, and high-throughput sequencing of nosZ revealed active and potentially efficient denitrifiers in different treatments. Our findings suggest that P. polymyxa biofertilizer is in line with the requirements of modern agriculture, which aims to increase product yield and quality while reducing negative environmental impacts.
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Affiliation(s)
- Sining Zhou
- Shenzhen DiDa Water Engineering Limited Company, Shenzhen 518116, P.R. China.,Sino-Danish College, University of Chinese Academy of Sciences, Beijing 100049, P.R. China.,CAS Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Beijing 100085, P.R. China
| | - Xiangui Zeng
- Shenzhen DiDa Water Engineering Limited Company, Shenzhen 518116, P.R. China
| | - Zhe Xu
- Agricultural College, Hunan Agricultural University, Changsha 414699, P.R. China
| | - Zhihui Bai
- Sino-Danish College, University of Chinese Academy of Sciences, Beijing 100049, P.R. China.,CAS Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Beijing 100085, P.R. China
| | - Shengming Xu
- Agricultural College, Hunan Agricultural University, Changsha 414699, P.R. China
| | - Cancan Jiang
- CAS Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Beijing 100085, P.R. China
| | - Guoqiang Zhuang
- Sino-Danish College, University of Chinese Academy of Sciences, Beijing 100049, P.R. China.,CAS Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Beijing 100085, P.R. China
| | - Shengjun Xu
- CAS Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Beijing 100085, P.R. China
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7
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Liang S, Liu H, Wu S, Xu S, Jin D, Faiola F, Zhuang X, Zhuang G, Qu D, Fan H, Bai Z. Genetic diversity of diazotrophs and total bacteria in the phyllosphere of Pyrus serotina, Prunus armeniaca, Prunus avium, and Vitis vinifera. Can J Microbiol 2019; 65:642-652. [PMID: 31241350 DOI: 10.1139/cjm-2018-0588] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The phyllosphere, which supports a large number of microorganisms, represents the interface between the aboveground parts of plants and air. In this study, four nifH clone libraries were constructed from the phyllosphere of Pyrus serotina (L), Vitis vinifera (P), Prunus armeniaca (X), and Prunus avium (Y). Clones related to Skermanella (L, 12.1%; X, 15.6%; Y, 62.5%; P 70.8%), Bradyrhizobium (X, 2.1%; P, 15.1%; L, 63.7%), Erwinia (X, 68.8%), Pseudomonas (L, 3.3%; P, 7.6%), and Chroococcidiopsis (P, 0.9%; L, 4.4%, X; 5.2%, Y; 19.6%) were present at high percentages, highlighting their critical role in contributing nitrogen to the phyllosphere ecosystem. The 16S rDNA sequence analysis suggested that phyllosphere-associated bacteria were affiliated with a wide range of taxa, encompassing members from Alphaproteobacteria, Betaproteobacteria, Gammaproteobacteria, Deltaproteobacteria, Actinobacteria, Bacteroidetes, Firmicutes, Cyanobacteria, Tenericutes, and Deinococcus-Thermus. Additionally, the abundance of the nifH gene and 16S rDNA was assessed with quantitative PCR. The number of copies of nifH and 16S rDNA ranged from 1.14 × 103 to 1.49 × 104 and from 3.72 × 106 to 7.02 × 107 copies/g fresh leaf sample, respectively. In conclusion, our work sheds light on the microbial communities of the phyllosphere that are important for plant growth. Moreover, we observed a unique composition of nitrogen-fixing bacteria in each phyllosphere sample, suggesting the existence of specific interactions between these functional microorganism and plants, which may provide information or be a reference for the development of bacterial fertilizers.
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Affiliation(s)
- Shengxian Liang
- Research Center for Eco-Environment Sciences, Chinese Academy of Sciences, Beijing 100085, China.,College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China.,College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang 110866, China
| | - Hao Liu
- Research Center for Eco-Environment Sciences, Chinese Academy of Sciences, Beijing 100085, China.,College of Natural Resources and Environment, Northwest A & F University, Yangling, Shanxi 712100, China
| | - Shanghua Wu
- Research Center for Eco-Environment Sciences, Chinese Academy of Sciences, Beijing 100085, China.,College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shengjun Xu
- Research Center for Eco-Environment Sciences, Chinese Academy of Sciences, Beijing 100085, China.,College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Decai Jin
- Research Center for Eco-Environment Sciences, Chinese Academy of Sciences, Beijing 100085, China.,College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Francesco Faiola
- Research Center for Eco-Environment Sciences, Chinese Academy of Sciences, Beijing 100085, China.,College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xuliang Zhuang
- Research Center for Eco-Environment Sciences, Chinese Academy of Sciences, Beijing 100085, China.,College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guoqiang Zhuang
- Research Center for Eco-Environment Sciences, Chinese Academy of Sciences, Beijing 100085, China.,College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Dong Qu
- College of Natural Resources and Environment, Northwest A & F University, Yangling, Shanxi 712100, China
| | - Haiyan Fan
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang 110866, China
| | - Zhihui Bai
- Research Center for Eco-Environment Sciences, Chinese Academy of Sciences, Beijing 100085, China.,College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
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8
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Heterogeneity in the Chemical Composition of Biofertilizers, Potential Agronomic Use, and Heavy Metal Contents of Different Agro-Industrial Wastes. SUSTAINABILITY 2019. [DOI: 10.3390/su11071995] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Several agro-industrial, livestock, and food wastes can be recycled to create biofertilizers. This diversity of raw materials can result in nutritional imbalance and an increase in heavy metal content, which could make the final product unfeasible. Thus, the chemical characterization of the raw materials and their influence on the sustainable and safe production of biofertilizers need to be better understood. In this context, the objective of the present study was to evaluate the chemical characteristics of agro-industrial residues used in the manufacture of an aerobic liquid biofertilizer. We analyzed the macronutrient, micronutrient, and trace metal contents of seven waste products used as raw materials to create a biofertilizer. In addition, a survey of secondary biofertilizer data from different residues was carried out that showed great heterogeneity in the chemical compositions of these residues, which has a direct impact on the agronomic efficiency of these biofertilizers. The characterization revealed that some materials may be contaminants of the soil, due to high levels of trace metals, especially cadmium. We conclude that the generation of detailed inventories, such as those of the nutrient and heavy metal contents of the raw materials and biofertilizers produced, is indispensable for the correct recommendation of biologically-based inputs in agriculture.
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9
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Paenibacillus polymyxa bioactive compounds for agricultural and biotechnological applications. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2019. [DOI: 10.1016/j.bcab.2019.101092] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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10
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Lobo CB, Juárez Tomás MS, Viruel E, Ferrero MA, Lucca ME. Development of low-cost formulations of plant growth-promoting bacteria to be used as inoculants in beneficial agricultural technologies. Microbiol Res 2018; 219:12-25. [PMID: 30642462 DOI: 10.1016/j.micres.2018.10.012] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 10/23/2018] [Accepted: 10/31/2018] [Indexed: 01/10/2023]
Abstract
Phosphorus is one of the main macronutrients for plant development. Despite its large deposits in soils, it is scarcely available for plants. Phosphate-solubilizing bacteria, belonging to the group of plant growth-promoting rhizobacteria (PGPR), are capable of mobilizing deposits of insoluble phosphates in the soil. The use of PGPR as inoculants provides an environmentally sustainable approach to increase crop production. The effectiveness of inoculants depends on their proper production, formulation and storage in order to ensure the application of the required number of viable microbial cells. In order to develop inexpensive technology, low-cost compounds for biomass production and protection should be used. After the biomass production process, the product should be formulated in a liquid or a solid form, taking into account required storage time, use of protectors/carriers, storage conditions (temperature, humidity, etc.), ease of application and maintenance of beneficial effects on crops. Careful determination of these optimal conditions would ensure a low-cost efficient inoculant that would promote the growth and yield of various crops.
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Affiliation(s)
- Constanza Belén Lobo
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI)-CONICET, Avenida Belgrano y Pasaje Caseros, San Miguel de Tucumán T4001MVB, Tucumán, Argentina.
| | - María Silvina Juárez Tomás
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI)-CONICET, Avenida Belgrano y Pasaje Caseros, San Miguel de Tucumán T4001MVB, Tucumán, Argentina.
| | - Emilce Viruel
- Instituto de Investigación Animal del Chaco Semiárido (IIACS), Centro de Investigaciones Agropecuarias (CIAP), Instituto Nacional de Tecnología Agropecuaria (INTA), Leales, Tucumán, Argentina.
| | - Marcela Alejandra Ferrero
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI)-CONICET, Avenida Belgrano y Pasaje Caseros, San Miguel de Tucumán T4001MVB, Tucumán, Argentina; Microbiología Superior, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán (UNT), Ayacucho 471, San Miguel de Tucumán T4000INI, Tucumán, Argentina.
| | - María Ester Lucca
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI)-CONICET, Avenida Belgrano y Pasaje Caseros, San Miguel de Tucumán T4001MVB, Tucumán, Argentina; Microbiología Superior, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán (UNT), Ayacucho 471, San Miguel de Tucumán T4000INI, Tucumán, Argentina.
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11
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Wang X, Xu S, Wu S, Feng S, Bai Z, Zhuang G, Zhuang X. Effect of Trichoderma viride biofertilizer on ammonia volatilization from an alkaline soil in Northern China. J Environ Sci (China) 2018; 66:199-207. [PMID: 29628087 DOI: 10.1016/j.jes.2017.05.016] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 04/24/2017] [Accepted: 05/10/2017] [Indexed: 06/08/2023]
Abstract
Ammonia (NH3) volatilization is one of the primary pathways of nitrogen (N) loss from soils after chemical fertilizer is applied, especially from the alkaline soils in Northern China, which results in lower efficiency for chemical fertilizers. Therefore, we conducted an incubation experiment using an alkaline soil from Tianjin (pH8.37-8.43) to evaluate the suppression effect of Trichoderma viride (T. viride) biofertilizer on NH3 volatilization, and compared the differences in microbial community structure among all samples. The results showed that viable T. viride biofertilizer (T) decreased NH3 volatilization by 42.21% compared with conventional fertilizer ((CK), urea), while nonviable T. viride biofertilizer (TS) decreased NH3 volatilization by 32.42%. NH3 volatilization was significantly higher in CK and sweet potato starch wastewater (SPSW) treatments during the peak period. T. viride biofertilizer also improved the transfer of ammonium from soil to sweet sorghum. Plant dry weights increased 91.23% and 61.08% for T and TS, respectively, compared to CK. Moreover, T. viride biofertilizer enhanced nitrification by increasing the abundance of ammonium-oxidizing archaea (AOA) and ammonium-oxidizing bacteria (AOB). The results of high-throughput sequencing indicated that the microbial community structure and composition were significantly changed by the application of T. viride biofertilizer. This study demonstrated the immense potential of T. viride biofertilizer in reducing NH3 volatilization from alkaline soil and simultaneously improving the utilization of fertilizer N by sweet sorghum.
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Affiliation(s)
- Xia Wang
- School of Life Sciences, University of Science and Technology of China, Hefei 230026, China; CAS Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Beijing 100085, China.
| | - Shengjun Xu
- CAS Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100085, China.
| | - Shanghua Wu
- CAS Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Beijing 100085, China
| | - Shugeng Feng
- CAS Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Beijing 100085, China
| | - Zhihui Bai
- CAS Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100085, China
| | - Guoqiang Zhuang
- CAS Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100085, China
| | - Xuliang Zhuang
- CAS Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100085, China.
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12
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Xu S, Jiang C, Ma S, Wu S, Bai Z, Zhuang G, Zhuang X. The performance and archaeal community shifts in a modified anaerobic baffled reactor treating sweet potato starch wastewater at ambient temperatures. Sci Rep 2017; 7:14734. [PMID: 29116213 PMCID: PMC5676868 DOI: 10.1038/s41598-017-15421-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 10/20/2017] [Indexed: 01/15/2023] Open
Abstract
A conventional anaerobic baffled reactors (ABRs) treating high strength sweet potato starch wastewater at ambient temperatures resulted in acidification and bad performances. After modification, the acidification was remitted and COD removal efficiencies reached 92.73% at high temperatures and were maintained at 71.19% at low temperatures. Moreover, as much as 1.014 ± 0.056 L CH4/L/d were collected at Stage III. The q-PCR results revealed that the largest methanogen populations emerged at Stage III as well, which was 5.29 × 108 mcrA copies per milliliter sludge. A comparable shift in the archaeal community structure at different stages and acetoclastic methanogens Methanosaeta predominated the archaeal community in every compartment in Stages I (63.73%) and II (48.63%). Finally, the net energy gains analysis at mesophilic, thermophilic, and ambient temperature revealed that modified ABR at ambient temperature was not only economical but also profitable and could generated 3.68 KJ energy per gram COD removed.
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Affiliation(s)
- Shengjun Xu
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.
| | - Cancan Jiang
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.,College of Resources and Environment, University of Chinese Academy of sciences, Beijing, 100049, China
| | - Shuanglong Ma
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), College of Environmental Science and Engineering, Nankai University, Tianjin, 300071, China
| | - Shanghua Wu
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Zhihui Bai
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Guoqiang Zhuang
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.
| | - Xuliang Zhuang
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.,College of Resources and Environment, University of Chinese Academy of sciences, Beijing, 100049, China
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13
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Ogutu FO, Mu TH. Ultrasonic degradation of sweet potato pectin and its antioxidant activity. ULTRASONICS SONOCHEMISTRY 2017; 38:726-734. [PMID: 27617769 DOI: 10.1016/j.ultsonch.2016.08.014] [Citation(s) in RCA: 105] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Revised: 07/19/2016] [Accepted: 08/11/2016] [Indexed: 06/06/2023]
Abstract
The effect of ultrasound factors (time, power, and duty cycle) on sweet potato pectin molecular weight, neutral sugar composition, pectin structure, and antioxidant activity was investigated. Sweet potato pectin dispersions (0.0025, 0.005 and 0.01g/mL) in deionized water were sonolyzed for 5, 10 and 20min to assess effect of sonication time and pectin concentration on sonolysis. For further experiments 0.0025g/mL was sonicated under varying ultrasonic power and duty cycle levels, subsequently the molecular weight, galacturonic acid content, degree of methoxylation and antioxidant activity of sonicated pectin products were investigated. Results showed that ultrasound treatment reduced pectin molecular weight, while polydispersity did not show clear trend which characterized random pectin scission, increasing duty cycle from 20% to 80% resulted in approximately threefold reduction in pectin molecular weight, increased sonication power from 100W to 400W led to significant increase in galacturonic acid content from 72.0±1.2% in native pectin to between 85.0±3.2% and 92.0±2.7%, the degree of methoxylation significantly reduced from 12.0±3.0% to between 5.25% and 6.28%, sonication led to increase in galactose and decrease in rhamnose consistent with debranching of pectin. Moreover, sonication lead to increased antioxidant capacity, both 200W and 400W sonicated pectin having higher ORAC and FRAP values, with highest pectin concentration 4mg/mL in ORAC and 0.8mg/ml in FRAP giving substantially high antioxidant activity than native and 100W treated pectin. The ORAC value of 400W sonicated pectin increased five hold above the native pectin, while it's FRAP value was almost three fold higher than native pectin. However, ultrasound did not alter pectin primary structure as showed by FTIR and HPAEC results. The results indicated that ultrasound offers effective and green process for pectin transformation and creation of antioxidant potent pectin products.
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Affiliation(s)
- Fredrick Onyango Ogutu
- Laboratory of Fruit and Vegetable Processing, The Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, No. 2 Yuan Ming Yuan West Road, Haidian District, PO Box 5109, Beijing 100193, China; Food Technology Division of Kenya Industrial Research and Development Institute, South C - Popo Rd., Off Mombasa Rd., PO Box 30650-00100, Nairobi, Kenya
| | - Tai-Hua Mu
- Laboratory of Fruit and Vegetable Processing, The Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, No. 2 Yuan Ming Yuan West Road, Haidian District, PO Box 5109, Beijing 100193, China.
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14
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Gerst MM, Huang E, Zhang L, Yousef AE. Development of a New Paenibacillin-Producing Strain and Testing its Usability in Improving Food Safety. J Food Sci 2015; 80:M1538-43. [DOI: 10.1111/1750-3841.12921] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2015] [Accepted: 04/29/2015] [Indexed: 11/28/2022]
Affiliation(s)
- Michelle M. Gerst
- Dept. of Microbiology; The Ohio State Univ.; 2015 Fyffe Court Columbus OH U.S.A
| | - En Huang
- Dept. of Food Science and Technology; The Ohio State Univ.; 2015 Fyffe Court Columbus OH U.S.A
| | - Liwen Zhang
- Mass Spectrometry and Proteomics Facility, Campus Chemical Instrument Center; The Ohio State Univ.; 460 W. 12th Ave. 209, Biomedical Research Tower Columbus OH U.S.A
| | - Ahmed E. Yousef
- Dept. of Microbiology; The Ohio State Univ.; 2015 Fyffe Court Columbus OH U.S.A
- Dept. of Food Science and Technology; The Ohio State Univ.; 2015 Fyffe Court Columbus OH U.S.A
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15
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Draft Genome Sequence of Paenibacillus polymyxa EBL06, a Plant Growth-Promoting Bacterium Isolated from Wheat Phyllosphere. GENOME ANNOUNCEMENTS 2015; 3:3/3/e00414-15. [PMID: 25953158 PMCID: PMC4424309 DOI: 10.1128/genomea.00414-15] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Paenibacillus polymyxa strain EBL06 is a plant growth-promoting bacterium with high antifungal activity. The estimated genome of this strain is 5.68 Mb in size and harbors 4,792 coding sequences (CDSs).
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16
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Deng Q, Li H, Li C, Lv W, Li Y. Enhancement of foamability and foam stability induced by interactions between a hyperbranched exopolysaccharide and a zwitterionic surfactant dodecyl sulfobetaine. RSC Adv 2015. [DOI: 10.1039/c5ra09120a] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Weak hydrogen bonding and electrostatic interactions between a zwitterionic surfactant dodecyl sulfobetaine (DSB) and a hyperbranched exopolysaccharide (EPS) enhanced considerably the stability and foamability of EPS/DSB foam.
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Affiliation(s)
- Quanhua Deng
- Key Laboratory for Colloid and Interface Chemistry of Education Ministry
- Shandong University
- Jinan 250100
- P. R. China
| | - Haiping Li
- National Engineering Technology Research Center for Colloidal Materials
- Shandong University
- Jinan 250100
- P. R. China
| | - Chunxiu Li
- Key Laboratory for Colloid and Interface Chemistry of Education Ministry
- Shandong University
- Jinan 250100
- P. R. China
| | - Weiqin Lv
- Key Laboratory for Colloid and Interface Chemistry of Education Ministry
- Shandong University
- Jinan 250100
- P. R. China
| | - Ying Li
- Key Laboratory for Colloid and Interface Chemistry of Education Ministry
- Shandong University
- Jinan 250100
- P. R. China
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