1
|
Shao X, Hao W, Konhauser KO, Gao Y, Tang L, Su M, Li Z. The dissolution of fluorapatite by phosphate-solubilizing fungi: a balance between enhanced phosphorous supply and fluorine toxicity. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:69393-69400. [PMID: 34302245 DOI: 10.1007/s11356-021-15551-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 07/17/2021] [Indexed: 06/13/2023]
Abstract
Fluorapatite (FAp) is the largest phosphorous (P) reservoir on Earth. However, due to its low solubility, dissolved P is severely deficient in the pedosphere. Fungi play a significant role in P dissolution via excretion of organic acids, and in this regard, it is important to understand their impact on P cycling. The object of this study was to elucidate the balance between P release and F toxicity during FAp dissolution. The bioweathering of FAp was assisted by a typical phosphate-solubilizing fungus, Aspergillus niger. The release of elements and microbial activities were monitored during 5-day incubation. We found that the release of fluorine (F) was activated after day 1 (~90 mg/L), which significantly lowered the phosphate-solubilizing process by day 2. Despite P release from FAp being enhanced over the following 3 days, decreases in both the amount of biomass (52% decline) and the respiration rate (81% decline) suggest the strong inhibitory effect of F on the fungus. We thus concluded that F toxicity outweighs P supply, which in turn inhibits fungi growth and prevents further dissolution of FAp. This mechanism might reflect an underappreciated cause for P deficiency in soils.
Collapse
Affiliation(s)
- Xiaoqing Shao
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
| | - Weiduo Hao
- Department of Earth & Atmospheric Sciences, University of Alberta, Edmonton, Alberta, T6G 2E3, Canada
| | - Kurt O Konhauser
- Department of Earth & Atmospheric Sciences, University of Alberta, Edmonton, Alberta, T6G 2E3, Canada
| | - Yanan Gao
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
| | - Lingyi Tang
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
| | - Mu Su
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
| | - Zhen Li
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China.
- Jiangsu Key Laboratory for Organic Waste Utilization, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China.
| |
Collapse
|
2
|
Ferrier J, Csetenyi L, Gadd GM. Selective fungal bioprecipitation of cobalt and nickel for multiple-product metal recovery. Microb Biotechnol 2021; 14:1747-1756. [PMID: 34115922 PMCID: PMC8313247 DOI: 10.1111/1751-7915.13843] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 05/13/2021] [Indexed: 11/26/2022] Open
Abstract
There are a need for novel, economical and efficient metal processing technologies to improve critical metal sustainability, particularly for cobalt and nickel which have extensive applications in low-carbon energy technologies. Fungal metal biorecovery processes show potential in this regard and the products of recovery are also industrially significant. Here we present a basis for selective biorecovery of Co and Ni oxalates and phosphates using reactive spent Aspergillus niger culture filtrate containing mycogenic oxalate and phosphate solubilized from struvite. Selective precipitation of oxalates was achieved by adjusting phosphate-laden filtrates to pH 2.5 prior to precipitation. Co recovery at pH 2.5 was high with a maximum of ~96% achieved, while ~60% Ni recovery was achieved, yielding microscale polyhedral biominerals. Co and Ni phosphates were precipitated at pH 7.5, following prior oxalate removal, resulting in near-total Co recovery (>99%), while Ni phosphate yields were also high with a recovery maximum of 83.0%.
Collapse
Affiliation(s)
- John Ferrier
- Geomicrobiology GroupSchool of Life SciencesUniversity of DundeeDundeeDD1 5EHUK
| | - Laszlo Csetenyi
- School of Science and EngineeringFulton BuildingUniversity of DundeeDundeeDD1 5HNUK
| | - Geoffrey Michael Gadd
- Geomicrobiology GroupSchool of Life SciencesUniversity of DundeeDundeeDD1 5EHUK
- State Key Laboratory of Heavy Oil ProcessingBeijing Key Laboratory of Oil and Gas Pollution ControlCollege of Chemical Engineering and EnvironmentChina University of Petroleum18 Fuxue Road, Changping DistrictBeijing102249China
| |
Collapse
|
3
|
Patel S, Parekh V, Patel K, Jha S. Plant Growth-promoting Activities of Penicillium sp. NAUSF2 Ameliorate Vigna radiata Salinity Stress in Phosphate-deficient Saline Soil. APPL BIOCHEM MICRO+ 2021. [DOI: 10.1134/s000368382104013x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
|
4
|
Vassileva M, Malusà E, Sas-Paszt L, Trzcinski P, Galvez A, Flor-Peregrin E, Shilev S, Canfora L, Mocali S, Vassilev N. Fermentation Strategies to Improve Soil Bio-Inoculant Production and Quality. Microorganisms 2021; 9:1254. [PMID: 34207668 PMCID: PMC8229917 DOI: 10.3390/microorganisms9061254] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 05/21/2021] [Accepted: 06/07/2021] [Indexed: 12/04/2022] Open
Abstract
The application of plant beneficial microorganisms has been widely accepted as an efficient alternative to chemical fertilizers and pesticides. Isolation and selection of efficient microorganisms, their characterization and testing in soil-plant systems are well studied. However, the production stage and formulation of the final products are not in the focus of the research, which affects the achievement of stable and consistent results in the field. Recent analysis of the field of plant beneficial microorganisms suggests a more integrated view on soil inoculants with a special emphasis on the inoculant production process, including fermentation, formulation, processes, and additives. This mini-review describes the different groups of fermentation processes and their characteristics, bearing in mind different factors, both nutritional and operational, which affect the biomass/spores yield and microbial metabolite activity. The characteristics of the final products of fermentation process optimization strategies determine further steps of development of the microbial inoculants. Submerged liquid and solid-state fermentation processes, fed-batch operations, immobilized cell systems, and production of arbuscular mycorrhiza are presented and their advantages and disadvantages are discussed. Recommendations for further development of the fermentation strategies for biofertilizer production are also considered.
Collapse
Affiliation(s)
- Maria Vassileva
- Department of Chemical Engineering, University of Granada, C/Fuentenueva s/n, 18071 Granada, Spain; (M.V.); (A.G.); (E.F.-P.)
| | - Eligio Malusà
- The National Institute of Horticultural Research, 96-100 Skierniewice, Poland; (E.M.); (L.S.-P.); (P.T.)
| | - Lidia Sas-Paszt
- The National Institute of Horticultural Research, 96-100 Skierniewice, Poland; (E.M.); (L.S.-P.); (P.T.)
| | - Pawel Trzcinski
- The National Institute of Horticultural Research, 96-100 Skierniewice, Poland; (E.M.); (L.S.-P.); (P.T.)
| | - Antonia Galvez
- Department of Chemical Engineering, University of Granada, C/Fuentenueva s/n, 18071 Granada, Spain; (M.V.); (A.G.); (E.F.-P.)
| | - Elena Flor-Peregrin
- Department of Chemical Engineering, University of Granada, C/Fuentenueva s/n, 18071 Granada, Spain; (M.V.); (A.G.); (E.F.-P.)
| | - Stefan Shilev
- Department of Microbiology and Environmental Biotechnology, University of Agriculture-Plovdiv, 4000 Plovdiv, Bulgaria;
| | - Loredana Canfora
- Research Centre for Agriculture and Environment, Council for Agricultural Research and Economics, 00184 Roma, Italy; (L.C.); (S.M.)
| | - Stefano Mocali
- Research Centre for Agriculture and Environment, Council for Agricultural Research and Economics, 00184 Roma, Italy; (L.C.); (S.M.)
| | - Nikolay Vassilev
- Department of Chemical Engineering, University of Granada, C/Fuentenueva s/n, 18071 Granada, Spain; (M.V.); (A.G.); (E.F.-P.)
- Institute of Biotechnology, University of Granada, 18071 Granada, Spain
| |
Collapse
|
5
|
Silva UC, Cuadros-Orellana S, Silva DRC, Freitas-Júnior LF, Fernandes AC, Leite LR, Oliveira CA, Dos Santos VL. Genomic and Phenotypic Insights Into the Potential of Rock Phosphate Solubilizing Bacteria to Promote Millet Growth in vivo. Front Microbiol 2021; 11:574550. [PMID: 33488531 PMCID: PMC7817697 DOI: 10.3389/fmicb.2020.574550] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Accepted: 11/25/2020] [Indexed: 11/29/2022] Open
Abstract
Rock phosphate (RP) is a natural source of phosphorus for agriculture, with the advantage of lower cost and less impact on the environment when compared to synthetic fertilizers. However, the release of phosphorus (P) from RP occurs slowly, which may limit its short-term availability to crops. Hence, the use of P-solubilizing microorganisms to improve the availability of P from this P source is an interesting approach, as microorganisms often perform other functions that assist plant growth, besides solubilizing P. Here, we describe the characterization of 101 bacterial isolates obtained from the rhizosphere and endosphere of maize plants for their P solubilizing activity in vitro, their growth-promoting activity on millet plants cultivated in soil amended with RP, and their gene content especially associated with phosphate solubilization. For the in vitro solubilization assays, two mineral P sources were used: rock phosphate from Araxá (Brazil) mine (AP) and iron phosphate (Fe-P). The amounts of P released from Fe–P in the solubilization assays were lower than those released from AP, and the endophytic bacteria outperformed the rhizospheric ones in the solubilization of both P sources. Six selected strains were evaluated for their ability to promote the growth of millet in soil fertilized with a commercial rock phosphate (cRP). Two of them, namely Bacillus megaterium UFMG50 and Ochrobactrum pseudogrignonense CNPMS2088, performed better than the others in the cRP assays, improving at least six physiological traits of millet or P content in the soil. Genomic analysis of these bacteria revealed the presence of genes related to P uptake and metabolism, and to organic acid synthesis. Using this approach, we identified six potential candidates as bioinoculants, which are promising for use under field conditions, as they have both the genetic potential and the experimentally demonstrated in vivo ability to improve rock phosphate solubilization and promote plant growth.
Collapse
Affiliation(s)
- Ubiana C Silva
- Department of Microbiology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Sara Cuadros-Orellana
- Centro de Biotecnología de los Recursos Naturales, Universidad Católica del Maule, Talca, Chile
| | - Daliane R C Silva
- Department of Microbiology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Luiz F Freitas-Júnior
- Department of Microbiology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Ana C Fernandes
- Department of Microbiology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Laura R Leite
- Grupo de Genômica e Informática de Biossistemas, Centro de Pesquisas René Rachou, Fiocruz, Belo Horizonte, Brazil
| | | | - Vera L Dos Santos
- Department of Microbiology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| |
Collapse
|
6
|
Busato JG, Ferrari LH, Chagas Junior AF, da Silva DB, Dos Santos Pereira T, de Paula AM. Trichoderma strains accelerate maturation and increase available phosphorus during vermicomposting enriched with rock phosphate. J Appl Microbiol 2020; 130:1208-1216. [PMID: 32916018 DOI: 10.1111/jam.14847] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 08/11/2020] [Accepted: 09/01/2020] [Indexed: 11/27/2022]
Abstract
AIMS To suggest microbial inoculation as a tool to shorten organic residues stabilization and increase rock phosphate (RP) solubilization through vermicomposting, thus increasing nutrient content in plants and making it more appealing to farmers. Two Trichoderma strains were inoculated alone or combined in a RP apatite-enriched vermicompost. Stability and plant-available phosphorus levels were monitored for 120 days. METHODS AND RESULTS Observable higher total organic carbon reduction in the treatment with the combined Trichoderma strains, followed by the inoculation with T. asperellum and T. virens. Combined Trichoderma and inoculation with T. virens increased humic acids (HA) content in 38·2 and 25·0%, respectively; non-inoculated vermicompost with T. asperellum increased it by 15·0%. The combined Trichoderma strains and T. virens achieved the stability index based on the humic/fulvic acids (HA/FA) ratio after 120 days. T. asperellum, combined Trichoderma and T. virens increased the citric acid soluble-P content in 83·2, 62·2 and 49·5%, respectively, compared to the non-inoculated vermicompost. CONCLUSIONS Inoculation with combined T. asperellum and T. virens efficiently accelerated vermicompost stabilization; T. asperellum increased the citric acid soluble-P in the final product. SIGNIFICANCE AND IMPACT OF THE STUDY Combined Trichoderma inoculation and RP enrichment improves the vermicompost quality, increasing HA and citric acid soluble-P, recycling organic waste nutrients and reducing agricultural dependence on phosphate fertilizers.
Collapse
Affiliation(s)
- J G Busato
- Laboratório de Química e Fertilidade do Solo, Universidade de Brasília, Faculdade de Agronomia e Veterinária, Brasília (DF), Brazil
| | - L H Ferrari
- Laboratório de Química e Fertilidade do Solo, Universidade de Brasília, Faculdade de Agronomia e Veterinária, Brasília (DF), Brazil
| | - A F Chagas Junior
- Laboratório de Agromicrobiologia Aplicada, Universidade Federal do Tocantins, Gurupi (TO), Palmas, Brazil
| | - D B da Silva
- Laboratório de Agromicrobiologia Aplicada, Universidade Federal do Tocantins, Gurupi (TO), Palmas, Brazil
| | - T Dos Santos Pereira
- Laboratório de Química e Fertilidade do Solo, Universidade de Brasília, Faculdade de Agronomia e Veterinária, Brasília (DF), Brazil
| | - A M de Paula
- Laboratório de Química e Fertilidade do Solo, Universidade de Brasília, Faculdade de Agronomia e Veterinária, Brasília (DF), Brazil
| |
Collapse
|
7
|
Zhang X, Gao X, Li C, Luo X, Wang Y. Fluoride contributes to the shaping of microbial community in high fluoride groundwater in Qiji County, Yuncheng City, China. Sci Rep 2019; 9:14488. [PMID: 31597951 PMCID: PMC6785547 DOI: 10.1038/s41598-019-50914-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 09/17/2019] [Indexed: 12/15/2022] Open
Abstract
As a toxic element, excessive amounts of fluoride in environment can be harmful because of its antimicrobial activity, however little is known about the relationship between fluoride and the bacterial community in groundwater systems. Here, we use samples from a typical fluorosis area to test the hypothesis that fluoride concentration is a fundamental structuring factor for bacterial communities in groundwater. Thirteen groundwater samples were collected; high-throughput 16S rRNA gene sequencing and statistical analysis were conducted to compare the bacterial community composition in individual wells. The results showed that Proteobacteria, with most relative abundance in groundwater, decreased along the groundwater fluoride concentration. Additionally, relative abundances of 12 families were also statistically correlated with fluoride concentration. The bacterial community was significantly explained by TOC (P = 0.045) and fluoride concentration (P = 0.007) of groundwater. This suggests that fluoride and TOC likely plays an important role in shaping the microbial community structure in these groundwater systems. Our research suggest that fluoride concentration should be taken into consideration in future when evaluating microbial response to environmental conditions in groundwater system, especially for fluoride rich groundwater.
Collapse
Affiliation(s)
- Xin Zhang
- School of Environmental Studies & State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, P.R. China
| | - Xubo Gao
- School of Environmental Studies & State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, P.R. China.
| | - Chengcheng Li
- School of Environmental Studies & State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, P.R. China
| | - Xuesong Luo
- College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yanxin Wang
- School of Environmental Studies & State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, P.R. China
| |
Collapse
|
8
|
Gao X, Luo W, Luo X, Li C, Zhang X, Wang Y. Indigenous microbes induced fluoride release from aquifer sediments. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 252:580-590. [PMID: 31185346 DOI: 10.1016/j.envpol.2019.05.118] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 04/17/2019] [Accepted: 05/14/2019] [Indexed: 06/09/2023]
Abstract
Release of fluoride from Quaternary sediments produces F-contaminated groundwater which threatens the health of millions of people worldwide. Despite the mechanisms of fluoride release from sediments are documented by numerous studies, it remains poorly understood that whether indigenous microbes participate in or not for the formation of F-rich groundwater by releasing fluoride from aquifer sediments. A microcosm-based approach, geochemistry and techniques of microbiology and molecular ecology were conducted together to investigate these mechanisms. Results show that microbes are abundant in high [F] groundwater containing at least 1129 operational taxonomic units (OTUs), and indigenous microbes can have an essential role in the mobilization of fluoride in sediments collected from aquifers in a typical fluorosis area in China. It also shows that for the sediments in this study, fluoride release (ca. 2 mg/L) is coupled with elevated concentrations of Ca (△ = 75 mg/L), Mg (△ = 33 mg/L), Al (△ = 0.2 mg/L) and Mn (△ = 1.4 mg/L). This suggests that the fluoride may source from the dissolution of F-bearing carbonate minerals and/or Al-Mn hydroxides in a local acidic environment. The findings provide additional insights into the biogeochemical circulation of fluoride in natural environment, especially in groundwater system and the development of effective strategies for the management of F-contaminated groundwater worldwide.
Collapse
Affiliation(s)
- Xubo Gao
- State Key Laboratory of Biogeology and Environmental Geology & School of Environmental Studies, China University of Geosciences, Wuhan, 430074, PR China
| | - Wenting Luo
- State Key Laboratory of Biogeology and Environmental Geology & School of Environmental Studies, China University of Geosciences, Wuhan, 430074, PR China
| | - Xuesong Luo
- College of Resources and Environment, Huangzhong Agriculture University, Wuhan, 430070, PR China; State Key Laboratory of Biogeology and Environmental Geology & School of Environmental Studies, China University of Geosciences, Wuhan, 430074, PR China
| | - Chengcheng Li
- State Key Laboratory of Biogeology and Environmental Geology & School of Environmental Studies, China University of Geosciences, Wuhan, 430074, PR China.
| | - Xin Zhang
- State Key Laboratory of Biogeology and Environmental Geology & School of Environmental Studies, China University of Geosciences, Wuhan, 430074, PR China
| | - Yanxin Wang
- State Key Laboratory of Biogeology and Environmental Geology & School of Environmental Studies, China University of Geosciences, Wuhan, 430074, PR China
| |
Collapse
|
9
|
Ribeiro VP, Marriel IE, Sousa SMD, Lana UGDP, Mattos BB, Oliveira CAD, Gomes EA. Endophytic Bacillus strains enhance pearl millet growth and nutrient uptake under low-P. Braz J Microbiol 2018; 49 Suppl 1:40-46. [PMID: 30150087 PMCID: PMC6328806 DOI: 10.1016/j.bjm.2018.06.005] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 06/19/2018] [Accepted: 06/22/2018] [Indexed: 02/02/2023] Open
Abstract
Bacterial endophytes are considered to have a beneficial effect on host plants, improving their growth by different mechanisms. The objective of this study was to investigate the capacity of four endophytic Bacillus strains to solubilize iron phosphate (Fe-P), produce siderophores and indole-acetic acid (IAA) in vitro, and to evaluate their plant growth promotion ability in greenhouse conditions by inoculation into pearl millet cultivated in a P-deficient soils without P fertilization, with Araxá rock phosphate or soluble triple superphosphate. All strains solubilized Fe-P and three of them produced carboxylate-type siderophores and high levels of IAA in the presence of tryptophan. Positive effect of inoculation of some of these strains on shoot and root dry weight and the N P K content of plants cultivated in soil with no P fertilization might result from the synergistic combination of multiple plant growth promoting (PGP) traits. Specifically, while B1923 enhanced shoot and root dry weight and root N P content of plants cultivated with no P added, B2084 and B2088 strains showed positive performance on biomass production and accumulation of N P K in the shoot, indicating that they have higher potential to be microbial biofertilizer candidates for commercial applications in the absence of fertilization.
Collapse
|
10
|
Wang X, Wang C, Sui J, Liu Z, Li Q, Ji C, Song X, Hu Y, Wang C, Sa R, Zhang J, Du J, Liu X. Isolation and characterization of phosphofungi, and screening of their plant growth-promoting activities. AMB Express 2018; 8:63. [PMID: 29679179 PMCID: PMC5910442 DOI: 10.1186/s13568-018-0593-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Accepted: 04/13/2018] [Indexed: 11/10/2022] Open
Abstract
Rhizospheric microorganisms can increase phosphorus availability in the soil. In this regard, the ability of phosphofungi to dissolve insoluble phosphorus compounds is greater than that of phosphate-solubilizing bacteria. The aim of the current study was to identify efficient phosphofungi that could be developed as commercial microbial agents. Among several phosphate-solubilizing fungal isolates screened, strain CS-1 showed the highest phosphorus-solubilization ability. Based on phylogenetic analysis of the internal transcribed spacer region sequence, it was identified as Aspergillus niger. High-performance liquid chromatography analysis revealed that the mechanism of phosphorus solubilization by CS-1 involved the synthesis and secretion of organic acids, mainly oxalic, tartaric, and citric acids. Furthermore, strain CS-1 exhibited other growth-promoting abilities, including efficient potassium release and degradation of crop straw cellulose. These properties help to returning crop residues to the soil, thereby increasing nutrient availability and sustaining organic matter concentration therein. A pot experiment revealed that CS-1 apparently increased the assessed biometric parameters of wheat seedlings, implying the potential of this strain to be developed as a commercial microbial agent. We used Illumina MiSeq sequencing to investigate the microbial community composition in the rhizosphere of uninoculated wheat plants and wheat plants inoculated with the CS-1 strain to obtain insight into the effect of the CS-1 strain inoculation. The data clearly demonstrated that CS-1 significantly reduced the content of pathogenic fungi, including Gibberella, Fusarium, Monographella, Bipolaris, and Volutella, which cause soil-borne diseases in various crops. Strain CS-1 may hence be developed into a microbial agent for plant growth improvement.
Collapse
|
11
|
Solubilization of phosphorus from phosphate rocks with Acidithiobacillus thiooxidans following a growing-then-recovery process. World J Microbiol Biotechnol 2017; 34:17. [PMID: 29288469 DOI: 10.1007/s11274-017-2390-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Accepted: 12/01/2017] [Indexed: 10/18/2022]
|
12
|
Klaic R, Plotegher F, Ribeiro C, Zangirolami T, Farinas C. A novel combined mechanical-biological approach to improve rock phosphate solubilization. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.minpro.2017.02.009] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
13
|
Wyciszkiewicz M, Saeid A, Malinowski P, Chojnacka K. Valorization of Phosphorus Secondary Raw Materials by Acidithiobacillus ferrooxidans. Molecules 2017; 22:E473. [PMID: 28300779 PMCID: PMC6155355 DOI: 10.3390/molecules22030473] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Revised: 02/27/2017] [Accepted: 03/14/2017] [Indexed: 11/17/2022] Open
Abstract
This paper presents the possibility of producing phosphorus fertilizers through Acidithiobacillus ferrooxidans utilization in secondary raw materials solubilization. Phosphorus was obtained from the bones of poultry and fish as well as from Morocco phosphorite. Four doses of poultry bones and fish bones were used in the experiment (2, 4, 10 and 20 g/L) and two doses (2 and 4 g/L) of phosphorite were also used. The experimenters measured the final pH, which increased in proportion to the increase in the number of poultry bone doses, whereas in the case of fish bones it decreased in proportion to the increase in the number of fish bone doses. Only in the case of phosphorite, where 10 g/L were used, there was a slight increase in pH during solubilization observed. The highest phosphorus concentration of 1.9% (expressed as P₂O₅) was found for the solubilization performed on fish bones with the highest dose (20 g/L). The formulation obtained in this study meets the necessary requirements for use as a bio-fertilizer because of the relatively low content of P₂O₅ and the low content of toxic elements. The results confirm the utilization of Acidithiobacillus ferrooxidans in the biosolubilization of phosphorus renewable raw materials that can alleviate the problem of the world's depleting phosphorite deposits.
Collapse
Affiliation(s)
- Małgorzata Wyciszkiewicz
- Department of Advanced Material Technologies, Faculty of Chemistry, Wroclaw University of Technology, Smoluchowskiego 25, 50-372 Wroclaw, Poland.
| | - Agnieszka Saeid
- Department of Advanced Material Technologies, Faculty of Chemistry, Wroclaw University of Technology, Smoluchowskiego 25, 50-372 Wroclaw, Poland.
| | - Przemysław Malinowski
- Basic Science Center, University of Applied Sciences in Nysa, Armii Krajowej 7, 48-300 Nysa, Poland.
| | - Katarzyna Chojnacka
- Department of Advanced Material Technologies, Faculty of Chemistry, Wroclaw University of Technology, Smoluchowskiego 25, 50-372 Wroclaw, Poland.
| |
Collapse
|
14
|
Busato JG, Zandonadi DB, Mól AR, Souza RS, Aguiar KP, Júnior FBR, Olivares FL. Compost biofortification with diazotrophic and P-solubilizing bacteria improves maturation process and P availability. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2017; 97:949-955. [PMID: 27226244 DOI: 10.1002/jsfa.7819] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Accepted: 05/22/2016] [Indexed: 06/05/2023]
Abstract
BACKGROUND Phosphorus-containing fertilizers play an important role in tropical agriculture owing to the well documented shortage of plant-available P in soils. Traditional P fertilizer production is based on chemical processing of insoluble rock phosphate (RP), which includes an acid treatment at high temperature. Processing the RP increases fertilizer costs, making it unavailable for undercapitalized and typically family-based farmers. Biotechnological methods have been proposed as an alternative to increase phosphate availability in RP. In this study, Burkholderia silvatlantica and Herbaspirillum seropedicae were co-inoculated into an RP-enriched compost with the aim of determining the effects of this technology on the levels of phosphatase activities and release of plant-available P. RESULTS Inoculation of both microorganisms resulted in higher organic matter decomposition and higher humic acid formation in composting. Herbaspirillum seropedicae was the most promising microorganism for the production of acid and alkaline phosphatase enzymes. Both microorganisms presented potential to increase the supply of P from poorly soluble sources owing to increased levels of water-soluble P and citric acid P. CONCLUSION Burkholderia silvatlantica and H. seropedicae in RP-enriched compost may represent an important biotechnological tool to reduce the overall time required for composting and increase the supply of P from poorly soluble sources. © 2016 Society of Chemical Industry.
Collapse
Affiliation(s)
- Jader G Busato
- Faculdade de Agronomia e Medicina Veterinária, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Caixa Postal 4508, CEP, 70910-970, Brasília/DF, Brazil
| | - Daniel B Zandonadi
- Empresa Brasileira de Pesquisa Agropecuária, Centro Nacional de Pesquisa de Hortaliças, Rodovia BR-060, Km 09, Caixa Postal 218, CEP, 70351-970, Brasília/DF, Brazil
| | - Alan R Mól
- Universidade de Brasília - UnB. Instituto de Química, Campus Universitário Darcy Ribeiro - Asa Norte, CEP, 70910-970, Brasília/DF, Brazil
| | - Rafaela S Souza
- Faculdade de Agronomia e Medicina Veterinária, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Caixa Postal 4508, CEP, 70910-970, Brasília/DF, Brazil
| | - Kamilla P Aguiar
- Universidade Estadual do Norte Fluminense, Núcleo de Insumos Biológicos para Agricultura, Av. Alberto Lamego, 2000, CEP, 28013-602, Campos dos Goytacazes/RJ, Brazil
| | - Fábio B Reis Júnior
- Empresa Brasileira de Pesquisa Agropecuária, Centro de Pesquisa Agropecuária dos Cerrados, Rodovia BR-020, Km 18, Caixa Postal 08223, CEP, 73310-970, Planaltina/DF, Brazil
| | - Fábio L Olivares
- Universidade Estadual do Norte Fluminense, Núcleo de Insumos Biológicos para Agricultura, Av. Alberto Lamego, 2000, CEP, 28013-602, Campos dos Goytacazes/RJ, Brazil
| |
Collapse
|
15
|
Teodosieva R, Bojinova D. BIODECOMPOSITION OF JORDAN PHOSPHORITE BY PHOSPHATE-SOLUBILIZING FUNGI. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2016. [DOI: 10.1590/0104-6632.20160331s00003267] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- R. Teodosieva
- University of Chemical Technology and Metallurgy, Bulgaria
| | - D. Bojinova
- University of Chemical Technology and Metallurgy, Bulgaria
| |
Collapse
|
16
|
Mendes GDO, da Silva NMRM, Anastácio TC, Vassilev NB, Ribeiro JI, da Silva IR, Costa MD. Optimization of Aspergillus niger rock phosphate solubilization in solid-state fermentation and use of the resulting product as a P fertilizer. Microb Biotechnol 2015; 8:930-9. [PMID: 26112323 PMCID: PMC4621446 DOI: 10.1111/1751-7915.12289] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Revised: 03/21/2015] [Accepted: 04/03/2015] [Indexed: 11/29/2022] Open
Abstract
A biotechnological strategy for the production of an alternative P fertilizer is described in this work. The fertilizer was produced through rock phosphate (RP) solubilization by Aspergillus niger in a solid-state fermentation (SSF) with sugarcane bagasse as substrate. SSF conditions were optimized by the surface response methodology after an initial screening of factors with significant effect on RP solubilization. The optimized levels of the factors were 865 mg of biochar, 250 mg of RP, 270 mg of sucrose and 6.2 ml of water per gram of bagasse. At this optimal setting, 8.6 mg of water-soluble P per gram of bagasse was achieved, representing an increase of 2.4 times over the non-optimized condition. The optimized SSF product was partially incinerated at 350°C (SB-350) and 500°C (SB-500) to reduce its volume and, consequently, increase P concentration. The post-processed formulations of the SSF product were evaluated in a soil-plant experiment. The formulations SB-350 and SB-500 increased the growth and P uptake of common bean plants (Phaseolus vulgaris L.) when compared with the non-treated RP. Furthermore, these two formulations had a yield relative to triple superphosphate of 60% (on a dry mass basis). Besides increasing P concentration, incineration improved the SSF product performance probably by decreasing microbial immobilization of nutrients during the decomposition of the remaining SSF substrate. The process proposed is a promising alternative for the management of P fertilization since it enables the utilization of low-solubility RPs and relies on the use of inexpensive materials.
Collapse
Affiliation(s)
- Gilberto de Oliveira Mendes
- Departamento de Microbiologia, Universidade Federal de ViçosaViçosa, Brazil
- Instituto de Ciências Agrárias, Universidade Federal de UberlândiaMonte Carmelo, Brazil
| | | | | | | | - José Ivo Ribeiro
- Departamento de Estatística and, Universidade Federal de ViçosaViçosa, Brazil
| | - Ivo Ribeiro da Silva
- Departamento de Solos, Universidade Federal de ViçosaViçosa, Brazil
- Pesquisador Bolsista do Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Brasília, Brazil
| | - Maurício Dutra Costa
- Departamento de Microbiologia, Universidade Federal de ViçosaViçosa, Brazil
- Pesquisador Bolsista do Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Brasília, Brazil
| |
Collapse
|
17
|
Brisson VL, Zhuang WQ, Alvarez-Cohen L. Bioleaching of rare earth elements from monazite sand. Biotechnol Bioeng 2015; 113:339-48. [DOI: 10.1002/bit.25823] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Revised: 08/23/2015] [Accepted: 08/26/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Vanessa L. Brisson
- Department of Civil and Environmental Engineering; University of California; Berkeley California 94720-1710
| | - Wei-Qin Zhuang
- Department of Civil and Environmental Engineering; University of California; Berkeley California 94720-1710
- Department of Civil and Environmental Engineering; The University of Auckland; Aukland 1142 New Zealand
| | - Lisa Alvarez-Cohen
- Department of Civil and Environmental Engineering; University of California; Berkeley California 94720-1710
- Earth Sciences Division; Lawrence Berkeley National Laboratory 1; Cyclotron Rd. Berkeley California 94720
| |
Collapse
|
18
|
Silva UDC, Mendes GDO, Silva NMRM, Duarte JL, Silva IR, Tótola MR, Costa MD. Fluoride-tolerant mutants of Aspergillus niger show enhanced phosphate solubilization capacity. PLoS One 2014; 9:e110246. [PMID: 25310310 PMCID: PMC4195724 DOI: 10.1371/journal.pone.0110246] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Accepted: 09/13/2014] [Indexed: 12/02/2022] Open
Abstract
P-solubilizing microorganisms are a promising alternative for a sustainable use of P against a backdrop of depletion of high-grade rock phosphates (RPs). Nevertheless, toxic elements present in RPs, such as fluorine, can negatively affect microbial solubilization. Thus, this study aimed at selecting Aspergillus niger mutants efficient at P solubilization in the presence of fluoride (F−). The mutants were obtained by exposition of conidia to UV light followed by screening in a medium supplemented with Ca3(PO4)2 and F−. The mutant FS1-555 showed the highest solubilization in the presence of F−, releasing approximately 70% of the P contained in Ca3(PO4)2, a value 1.7 times higher than that obtained for the wild type (WT). The mutant FS1-331 showed improved ability of solubilizing fluorapatites, increasing the solubilization of Araxá, Catalão, and Patos RPs by 1.7, 1.6, and 2.5 times that of the WT, respectively. These mutants also grew better in the presence of F−, indicating that mutagenesis allowed the acquisition of F− tolerance. Higher production of oxalic acid by FS1-331 correlated with its improved capacity for RP solubilization. This mutant represents a significant improvement and possess a high potential for application in solubilization systems with fluoride-rich phosphate sources.
Collapse
Affiliation(s)
| | - Gilberto de Oliveira Mendes
- Departamento de Solos, Universidade Federal de Viçosa, Viçosa, MG, Brasil
- Instituto de Ciências Agrárias, Universidade Federal de Uberlândia, Monte Carmelo, MG, Brasil
| | | | - Josiane Leal Duarte
- Departamento de Microbiologia, Universidade Federal de Viçosa, Viçosa, MG, Brasil
| | - Ivo Ribeiro Silva
- Departamento de Solos, Universidade Federal de Viçosa, Viçosa, MG, Brasil
- Pesquisador Bolsista do Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Brasília, DF, Brasil
| | - Marcos Rogério Tótola
- Departamento de Microbiologia, Universidade Federal de Viçosa, Viçosa, MG, Brasil
- Pesquisador Bolsista do Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Brasília, DF, Brasil
| | - Maurício Dutra Costa
- Departamento de Microbiologia, Universidade Federal de Viçosa, Viçosa, MG, Brasil
- Pesquisador Bolsista do Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Brasília, DF, Brasil
- * E-mail:
| |
Collapse
|
19
|
de Oliveira SC, de Oliveira Mendes G, da Silva UC, da Silva IR, Júnior JIR, Costa MD. Decreased mineral availability enhances rock phosphate solubilization efficiency in Aspergillus niger. ANN MICROBIOL 2014. [DOI: 10.1007/s13213-014-0914-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
|
20
|
Biochar enhances Aspergillus niger rock phosphate solubilization by increasing organic acid production and alleviating fluoride toxicity. Appl Environ Microbiol 2014; 80:3081-5. [PMID: 24610849 DOI: 10.1128/aem.00241-14] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
During fungal rock phosphate (RP) solubilization, a significant quantity of fluoride (F(-)) is released together with phosphorus (P), strongly inhibiting the process. In the present study, the effect of two F(-) adsorbents [activated alumina (Al2O3) and biochar] on RP solubilization by Aspergillus niger was examined. Al2O3 adsorbed part of the F(-) released but also adsorbed soluble P, which makes it inappropriate for microbial RP solubilization systems. In contrast, biochar adsorbed only F(-) while enhancing phosphate solubilization 3-fold, leading to the accumulation of up to 160 mg of P per liter. By comparing the values of F(-) measured in solution at the end of incubation and those from a predictive model, it was estimated that up to 19 mg of F(-) per liter can be removed from solution by biochar when added at 3 g liter(-1) to the culture medium. Thus, biochar acted as an F(-) sink during RP solubilization and led to an F(-) concentration in solution that was less inhibitory to the process. In the presence of biochar, A. niger produced larger amounts of citric, gluconic, and oxalic acids, whether RP was present or not. Our results show that biochar enhances RP solubilization through two interrelated processes: partial removal of the released F(-) and increased organic acid production. Given the importance of organic acids for P solubilization and that most of the RPs contain high concentrations of F(-), the proposed solubilization system offers an important technological improvement for the microbial production of soluble P fertilizers from RP.
Collapse
|