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Bacosa HP, Cayabo GDB, Inoue C. Biodegradation of polycyclic aromatic hydrocarbons (PAHs) by microbial consortium from paddy rice soil. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2023; 58:617-622. [PMID: 37122120 DOI: 10.1080/10934529.2023.2204803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are among the most widely spread pollutants in the environment including the agricultural soil. PAH degradation by indigenous bacteria is an effective and economical means to remove these pollutants from the environment. Here, we report a bacterial consortium (Pdy-1) isolated from paddy rice soil in northern Japan able to degrade polycyclic aromatic hydrocarbons (PAHs) at high rates. Pdy-1 was incubated with a mixture of PAH compounds (fluorene, phenanthrene, and pyrene) in Bushnell Haas Medium at a final concentration of 100 mg/L each. PDY-1 degraded 100% of fluorene, 95% of phenanthrene, and 52% of pyrene in 5 days. Phenanthrene and pyrene were completely degraded at 10 d and 15 d, respectively. Cloning of the 16S rRNA gene revealed that the consortium was composed of 40% Achromobacter and 7% each of Castelaniella, Rhodanobacter, and Hypomicrobium. Comamonas, Ferrovibrio, Terrimonas, Bordetella, Rhizobium, and Pseudonocardia were also detected. PCR-DGGE showed the dynamics of the consortium during the incubation period. Real-time PCR revealed that PAH degrading genes such as the gram-positive ring dihydroxylating genes (PAH-RDH) and pyrene dioxygenase (nidA) were most abundant at day 5 when the rapid biodegradation of the PAHs was observed. This study improves our understanding on dynamics and characteristics of an effective PAH-degrading bacterial consortium from paddy rice soil.
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Affiliation(s)
- Hernando P Bacosa
- Environmental Science Program, Department of Biological Sciences, College of Science and Mathematics, Mindanao State University-Iligan Institute of Technology, Iligan, Philippines
- Graduate School of Environmental Studies, Tohoku University, Sendai, Japan
| | - Genese Divine B Cayabo
- College of Fisheries and Aquatic Sciences, Western Philippines University, Puerto Princesa City, Palawan, Philippines
| | - Chihiro Inoue
- Graduate School of Environmental Studies, Tohoku University, Sendai, Japan
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Gaboy SMM, Guihawan JQ, Leopardas VE, Bacosa HP. Unravelling macroplastic pollution in seagrass beds of Iligan City, Mindanao, Philippines. MARINE POLLUTION BULLETIN 2022; 185:114233. [PMID: 36252442 DOI: 10.1016/j.marpolbul.2022.114233] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 10/04/2022] [Accepted: 10/06/2022] [Indexed: 06/16/2023]
Abstract
Despite being a leading pollutant in the ocean, there are limited studies about plastic litter in seagrasses, and none has been documented in the Philippines. This study determined the abundance and composition of macroplastics in seagrass beds of Iligan City, Philippines. Plastics were collected from transect lines laid in seagrass beds of four sites (Dalipuga, Hinaplanon, Tominobo and Buru-un), and three locations (landward, midward, seaward) in each site, periodically within 42 days. A total of 921 macroplastic items were collected in all sampling sites, of which 308 were from Buru-un, 271 from Tominobo, 240 from Dalipuga, and 102 from Hinaplanon. Landward areas have a significantly higher density than either midward or seaward. The first sampling was higher than the succeeding sampling period. Food packaging, plastic bags, and fragments predominated the litter in seagrass. This study is the first to document the presence of macroplastics in seagrass beds in the Philippines.
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Affiliation(s)
- Shiela Mae M Gaboy
- Environmental Science Graduate Program, Department of Biological Sciences, Mindanao State University- Iligan Institute of Technology (MSU-IIT), Tibanga, Iligan City, Lanao del Norte 9200, Philippines.
| | - Jaime Q Guihawan
- Environmental Science Graduate Program, Department of Biological Sciences, Mindanao State University- Iligan Institute of Technology (MSU-IIT), Tibanga, Iligan City, Lanao del Norte 9200, Philippines
| | - Venus E Leopardas
- College of Marine and Allied Sciences, Mindanao State University at Naawan, Naawan, Misamis Oriental 9023, Philippines
| | - Hernando P Bacosa
- Environmental Science Graduate Program, Department of Biological Sciences, Mindanao State University- Iligan Institute of Technology (MSU-IIT), Tibanga, Iligan City, Lanao del Norte 9200, Philippines
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Bacosa HP, Mabuhay-Omar JA, Balisco RAT, Omar DM, Inoue C. Biodegradation of binary mixtures of octane with benzene, toluene, ethylbenzene or xylene (BTEX): insights on the potential of Burkholderia, Pseudomonas and Cupriavidus isolates. World J Microbiol Biotechnol 2021; 37:122. [PMID: 34151386 DOI: 10.1007/s11274-021-03093-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 06/14/2021] [Indexed: 01/20/2023]
Abstract
The contamination of the environment by crude oil and its by-products, mainly composed of aliphatic and aromatic hydrocarbons, is a widespread problem. Biodegradation by bacteria is one of the processes responsible for the removal of these pollutants. This study was conducted to determine the abilities of Burkholderia sp. B5, Cupriavidus sp. B1, Pseudomonas sp. T1, and another Cupriavidus sp. X5 to degrade binary mixtures of octane (representing aliphatic hydrocarbons) with benzene, toluene, ethylbenzene, or xylene (BTEX as aromatic hydrocarbons) at a final concentration of 100 ppm under aerobic conditions. These strains were isolated from an enriched bacterial consortium (Yabase or Y consortium) that prefer to degrade aromatic hydrocarbon over aliphatic hydrocarbons. We found that B5 degraded all BTEX compounds more rapidly than octane. In contrast, B1, T1 and X5 utilized more of octane over BTX compounds. B5 also preferred to use benzene over octane with varying concentrations of up to 200 mg/l. B5 possesses alkane hydroxylase (alkB) and catechol 2,3-dioxygenase (C23D) genes, which are responsible for the degradation of alkanes and aromatic hydrocarbons, respectively. This study strongly supports our notion that Burkholderia played a key role in the preferential degradation of aromatic hydrocarbons over aliphatic hydrocarbons in the previously characterized Y consortium. The preferential degradation of more toxic aromatic hydrocarbons over aliphatics is crucial in risk-based bioremediation.
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Affiliation(s)
- Hernando P Bacosa
- Environmental Science Program, Department of Biological Sciences, College of Science and Mathematics, Mindanao State University-Iligan Institute of Technology, Tibanga, 9200, Iligan, Lanao del Norte, Philippines.,Graduate School of Environmental Studies, Tohoku University, 6-6-20 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi, 980-8579, Japan
| | - Jhonamie A Mabuhay-Omar
- College of Fisheries and Aquatic Sciences, Western Philippines University-Puerto Princesa, Sta. Monica, 5300, Puerto Princesa, Palawan, Philippines.
| | - Rodulf Anthony T Balisco
- College of Fisheries and Aquatic Sciences, Western Philippines University-Puerto Princesa, Sta. Monica, 5300, Puerto Princesa, Palawan, Philippines
| | - Dawin M Omar
- College of Engineering, Architecture and Technology, Palawan State University, Tiniguiban, 5300, Puerto Princesa, Palawan, Philippines
| | - Chihiro Inoue
- Graduate School of Environmental Studies, Tohoku University, 6-6-20 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi, 980-8579, Japan
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Bacosa HP, Kang A, Lu K, Liu Z. Initial oil concentration affects hydrocarbon biodegradation rates and bacterial community composition in seawater. MARINE POLLUTION BULLETIN 2021; 162:111867. [PMID: 33276157 DOI: 10.1016/j.marpolbul.2020.111867] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 11/17/2020] [Accepted: 11/22/2020] [Indexed: 06/12/2023]
Abstract
During oil spills in the field or for laboratory incubation studies, different oil concentrations are often encountered or applied, yet how initial oil concentration affects biodegradation rates of hydrocarbons and the development of oil degraders remains unclear. We incubated seawater for 50 d with different oil concentrations (0, 50, 100, 200, 400 and 800 ppm). n-Alkanes and polycyclic aromatic hydrocarbons (PAHs), and the bacterial community were analyzed periodically. Results show that the biodegradation rates of alkanes, derived from first order kinetics, decreased with increasing oil concentration, but percent residual was ~50% regardless of the initial concentration. In contrast, the biodegradation rates of PAHs increased with concentration, and the percent residual increased with oil concentration. Increasing oil concentration resulted in increased abundances of Rhodobacterales, Altererythrobacter, and Neptuniibacter. However, Alcanivorax abundance was barely detected in 400 and 800 ppm. Overall, oil concentration critically affected the degradation of hydrocarbons and the bacterial community.
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Affiliation(s)
- Hernando P Bacosa
- Marine Science Institute, The University of Texas at Austin, 750 Channel View Drive, Port Aransas, TX 78373, USA; Department of Biological Sciences, Mindanao State University-Iligan Institute of Technology, Iligan City 9200, Philippines.
| | - Andrew Kang
- Marine Science Institute, The University of Texas at Austin, 750 Channel View Drive, Port Aransas, TX 78373, USA; University of Guam Marine Laboratory, UOG Station, Mangilao, Guam 96923, USA
| | - Kaijun Lu
- Marine Science Institute, The University of Texas at Austin, 750 Channel View Drive, Port Aransas, TX 78373, USA
| | - Zhanfei Liu
- Marine Science Institute, The University of Texas at Austin, 750 Channel View Drive, Port Aransas, TX 78373, USA
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Marine Snow Aggregates are Enriched in Polycyclic Aromatic Hydrocarbons (PAHs) in Oil Contaminated Waters: Insights from a Mesocosm Study. JOURNAL OF MARINE SCIENCE AND ENGINEERING 2020. [DOI: 10.3390/jmse8100781] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Marine snow was implicated in the transport of oil to the seafloor during the Deepwater Horizon oil spill, but the exact processes remain controversial. In this study, we investigated the concentrations and distributions of the 16 USEPA priority polycyclic aromatic hydrocarbons (PAHs) in marine snow aggregates collected during a mesocosm experiment. Seawater only, oil in a water accommodated fraction (WAF), and Corexit-enhanced WAF (DCEWAF) were incubated for 16 d. Both WAF and DCEWAF aggregates were enriched in heavy molecular weight PAHs but depleted in naphthalene. DCEWAF aggregates had 2.6 times more total 16 PAHs than the WAF (20.5 vs. 7.8 µg/g). Aggregates in the WAF and DCEWAF incorporated 4.4% and 19.3%, respectively of the total PAHs in the mesocosm tanks. Our results revealed that marine snow sorbed and scavenged heavy molecular weight PAHs in the water column and the application of Corexit enhanced the incorporation of PAHs into the sinking aggregates.
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Bioremediation of PAH-Contaminated Soils: Process Enhancement through Composting/Compost. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10113684] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Bioremediation of contaminated soils has gained increasing interest in recent years as a low-cost and environmentally friendly technology to clean soils polluted with anthropogenic contaminants. However, some organic pollutants in soil have a low biodegradability or are not bioavailable, which hampers the use of bioremediation for their removal. This is the case of polycyclic aromatic hydrocarbons (PAHs), which normally are stable and hydrophobic chemical structures. In this review, several approaches for the decontamination of PAH-polluted soil are presented and discussed in detail. The use of compost as biostimulation- and bioaugmentation-coupled technologies are described in detail, and some parameters, such as the stability of compost, deserve special attention to obtain better results. Composting as an ex situ technology, with the use of some specific products like surfactants, is also discussed. In summary, the use of compost and composting are promising technologies (in all the approaches presented) for the bioremediation of PAH-contaminated soils.
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Kos Kramar M, Tinta T, Lučić D, Malej A, Turk V. Bacteria associated with moon jellyfish during bloom and post-bloom periods in the Gulf of Trieste (northern Adriatic). PLoS One 2019; 14:e0198056. [PMID: 30645606 PMCID: PMC6333360 DOI: 10.1371/journal.pone.0198056] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Accepted: 12/24/2018] [Indexed: 12/16/2022] Open
Abstract
Jellyfish are a prominent component of the plankton community. They frequently form conspicuous blooms which may interfere with different human enterprises. Among the aspects that remain understudied are jellyfish associations with microorganisms having potentially important implications for organic matter cycling. To the best of our knowledge, this study is the first to investigate the bacterial community associated with live moon jellyfish (Aurelia solida, Scyohozoa) in the Adriatic Sea. Using 16S rRNA clone libraries and culture-based methods, we have analyzed the bacterial community composition of different body parts: the exumbrella surface, oral arms, and gastric cavity, and investigated possible differences in medusa-associated bacterial community structure at the time of the jellyfish population peak, and during the senescent phase at the end of bloom. Microbiota associated with moon jellyfish was different from ambient seawater bacterial assemblage and varied between different body parts. Betaproteobacteria (Burkholderia, Cupriavidus and Achromobacter) dominated community in the gastral cavity of medusa, while Alphaproteobacteria (Phaeobacter, Ruegeria) and Gammaproteobacteria (Stenotrophomonas, Alteromonas, Pseudoalteromonas and Vibrio) prevailed on ‘outer’ body parts. Bacterial community structure changed during senescent phase, at the end of the jellyfish bloom, showing an increased abundance of Gammaproteobacteria, exclusively Vibrio. The results of cultured bacterial isolates showed the dominance of Gammaproeteobacteria, especially Vibrio and Pseudoalteromonas in all body parts. Our results suggest that jellyfish associated bacterial community might have an important role for the host, and that anthropogenic pollution in the Gulf of Trieste might affect their community structure.
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Affiliation(s)
- Maja Kos Kramar
- Marine Biology Station Piran, National Institute of Biology, Piran, Slovenia
| | - Tinkara Tinta
- Marine Biology Station Piran, National Institute of Biology, Piran, Slovenia
- Department of Limnology and Bio-Oceanography, Center of Functional Ecology, University of Vienna, Vienna, Austria
| | - Davor Lučić
- Institute for Marine and Coastal Research, University of Dubrovnik, Dubrovnik, Croatia
| | - Alenka Malej
- Marine Biology Station Piran, National Institute of Biology, Piran, Slovenia
| | - Valentina Turk
- Marine Biology Station Piran, National Institute of Biology, Piran, Slovenia
- * E-mail:
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Gemmell BJ, Bacosa HP, Dickey BO, Gemmell CG, Alqasemi LR, Buskey EJ. Rapid alterations to marine microbiota communities following an oil spill. ECOTOXICOLOGY (LONDON, ENGLAND) 2018; 27:505-516. [PMID: 29556940 DOI: 10.1007/s10646-018-1923-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 02/24/2018] [Indexed: 06/08/2023]
Abstract
Field data from the first several days after an oil spill is rare but crucial for our understanding of a spill's impact on marine microbiota given their short generation times. Field data collected within days of the Texas City "Y" oil spill showed that exposure to crude oil can rapidly imbalance populations of marine microbiota, which leads to the proliferation of more resistant organisms. Vibrionales bacteria were up to 48 times higher than background concentrations at the most impacted sites and populations of the dinoflagellate Prorocentrum texanum increased significantly as well. Laboratory microcosm experiments with a natural plankton community showed that P. texanum grew significantly faster under oiled conditions but monocultures of P. texanum did not. Additional laboratory experiments with natural communities from Tampa Bay, Florida showed similar results although a different species dominated, P. minimum. In both cases, tolerance to the presence of crude oil was enhanced by higher sensitivity of grazers led to a release from grazing pressure and allows Prorocentrum species to dominate after an oil spill. The results suggest careful monitoring for Vibrionales and Prorocentrum during future spills would be beneficial given the potential implications to human health.
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Affiliation(s)
- Brad J Gemmell
- Department of Integrative Biology, University of South Florida, Tampa, FL, 33620, USA.
| | - Hernando P Bacosa
- Marine Science Department, University of Texas at Austin, Port Aransas, TX, 78373, USA
| | - Ben O Dickey
- Marine Science Department, University of Texas at Austin, Port Aransas, TX, 78373, USA
| | - Colbi G Gemmell
- Department of Integrative Biology, University of South Florida, Tampa, FL, 33620, USA
- Marine Science Department, University of Texas at Austin, Port Aransas, TX, 78373, USA
| | - Lama R Alqasemi
- Department of Integrative Biology, University of South Florida, Tampa, FL, 33620, USA
| | - Edward J Buskey
- Marine Science Department, University of Texas at Austin, Port Aransas, TX, 78373, USA
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Włóka D, Placek A, Rorat A, Smol M, Kacprzak M. The evaluation of polycyclic aromatic hydrocarbons (PAHs) biodegradation kinetics in soil amended with organic fertilizers and bulking agents. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 145:161-168. [PMID: 28734218 DOI: 10.1016/j.ecoenv.2017.07.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Revised: 07/02/2017] [Accepted: 07/11/2017] [Indexed: 06/07/2023]
Abstract
The aim of this study was to investigate the polycyclic aromatic hydrocarbons (PAHs) biodegradation kinetics in soils fertilized with organic amendments (sewage sludge, compost), bulking agents (mineral sorbent, silicon dioxide in form of nano powder), and novel compositions of those materials. The scope of conducted works includes a cyclic CO2 production measurements and the determinations of PAHs content in soil samples, before and after 3-months of incubation. Obtained results show that the use of both type of organic fertilizers have a positive effect on the PAHs removal from soil. However, the CO2 emission remains higher only in the first stage of the process. The best acquired means in terms of PAHs removal as well as most sustained CO2 production were noted in samples treated with the mixtures of organic fertilizers and bulking agents. In conclusion the addition of structural forming materials to the organic fertilizers was critical for the soil bioremediation efficiency. Therefore, the practical implementation of collected data could find a wide range of applications during the design of new, more effective solutions for the soil bioremediation purposes.
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Affiliation(s)
- Dariusz Włóka
- Institute of Environmental Engineering, Faculty of Infrastructure and Environment, Częstochowa University of Technology, Brzeznicka street 60a, 42-200 Czestochowa, Poland.
| | - Agnieszka Placek
- Institute of Environmental Engineering, Faculty of Infrastructure and Environment, Częstochowa University of Technology, Brzeznicka street 60a, 42-200 Czestochowa, Poland
| | - Agnieszka Rorat
- Université Lille Nord de France, LGCgE-Lille 1, Ecologie Numérique et Ecotoxicologie, F-59650 Villeneuve d'Ascq, France
| | - Marzena Smol
- Mineral and Energy Economy Research Institute, Polish Academy of Sciences, 31-261 Cracow, Poland
| | - Małgorzata Kacprzak
- Institute of Environmental Engineering, Faculty of Infrastructure and Environment, Częstochowa University of Technology, Brzeznicka street 60a, 42-200 Czestochowa, Poland
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Tirado-Torres D, Acevedo-Sandoval O, Rodríguez-Pastrana BR, Gayosso-Canales M. Phylogeny and polycyclic aromatic hydrocarbons degradation potential of bacteria isolated from crude oil-contaminated site. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2017; 52:897-904. [PMID: 28463567 DOI: 10.1080/10934529.2017.1316170] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
This study employed the use of 16S rRNA gene sequence analysis to identify three of four native bacterial strains isolated from crude oil-contaminated site in Poza Rica, Veracruz, Mexico. The identified bacteria were Ochrobactrum intermedium, Pandoraea pnomenusa and Ochrobactrum sp., but SA2-09 strain was not identified. The ability of the isolates to degrade polycyclic aromatic hydrocarbons (PAHs) was evaluated at 31.61 and 54.52 mg/kg PAHs in soil, when used as crude oil in soil microcosm during 80 days of incubation at 30°C. The results demonstrated that O. intermedium biodegraded many PAHs, including the high molecular weight (HMW) PAHs fluoranthene (100% equivalent 0.24 mg/kg), benzo [b] fluoranthene (81.8% equal 0.18 mg/kg), Benzo[a]pyrene (87.0%, 0.20 mg/kg) and Benzo[g,h,i]perylene (52.7%, 0.39 mg/kg). P. pnomenusa had a degradation profile of HMW PAHs, which was similar to O. intermedium, while Ochrobactrum sp. and the strain SA-09 exhibited lower degradation rates of HMW.
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Affiliation(s)
- David Tirado-Torres
- a Institute of Basic Sciences and Engineering, Autonomous University of Hidalgo (UAEH) , Pahuca, Hidalgo , Mexico
| | - Otilio Acevedo-Sandoval
- b IInstitute of Agriculture and Livestock, Autonomous University of Hidalgo (UAEH) , Tulancingo, Hidalgo , Mexico
| | - Blanca R Rodríguez-Pastrana
- b IInstitute of Agriculture and Livestock, Autonomous University of Hidalgo (UAEH) , Tulancingo, Hidalgo , Mexico
| | - Martha Gayosso-Canales
- b IInstitute of Agriculture and Livestock, Autonomous University of Hidalgo (UAEH) , Tulancingo, Hidalgo , Mexico
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