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Ponciano G, Dong N, Dong C, Breksa A, Vilches A, Abutokaikah MT, McMahan C, Holguin FO. Overexpression of tocopherol biosynthesis genes in guayule (Parthenium argentatum) reduces rubber, resin and argentatins content in stem and leaf tissues. Phytochemistry 2024; 222:114060. [PMID: 38522560 DOI: 10.1016/j.phytochem.2024.114060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 03/07/2024] [Accepted: 03/09/2024] [Indexed: 03/26/2024]
Abstract
Natural rubber produced in stems of the guayule plant (Parthenium argentatum) is susceptible to post-harvest degradation from microbial or thermo-oxidative processes, especially once stems are chipped. As a result, the time from harvest to extraction must be minimized to recover high quality rubber, especially in warm summer months. Tocopherols are natural antioxidants produced in plants through the shikimate and methyl-erythtiol-4-phosphate (MEP) pathways. We hypothesized that increased in vivo guayule tocopherol content might protect rubber from post-harvest degradation, and/or allow reduced use of chemical antioxidants during the extraction process. With the objective of enhancing tocopherol content in guayule, we overexpressed four Arabidopsis thaliana tocopherol pathway genes in AZ-2 guayule via Agrobacterium-mediated transformation. Tocopherol content was increased in leaf and stem tissues of most transgenic lines, and some improvement in thermo-oxidative stability was observed. Overexpression of the four tocopherol biosynthesis enzymes, however, altered other isoprenoid pathways resulting in reduced rubber, resin and argentatins content in guayule stems. The latter molecules are mainly synthesized from precursors derived from the mevalonate (MVA) pathway. Our results suggest the existence of crosstalk between the MEP and MVA pathways in guayule and the possibility that carbon metabolism through the MEP pathway impacts rubber biosynthesis.
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Affiliation(s)
- Grisel Ponciano
- United States Department of Agriculture-Agricultural Research Service-Western Regional Research Center, 800 Buchanan Street, Albany, CA, 94710, USA.
| | - Niu Dong
- United States Department of Agriculture-Agricultural Research Service-Western Regional Research Center, 800 Buchanan Street, Albany, CA, 94710, USA
| | - Chen Dong
- United States Department of Agriculture-Agricultural Research Service-Western Regional Research Center, 800 Buchanan Street, Albany, CA, 94710, USA
| | - Andrew Breksa
- United States Department of Agriculture-Agricultural Research Service-Western Regional Research Center, 800 Buchanan Street, Albany, CA, 94710, USA
| | - Ana Vilches
- United States Department of Agriculture-Agricultural Research Service-Western Regional Research Center, 800 Buchanan Street, Albany, CA, 94710, USA
| | - Maha T Abutokaikah
- Research Cores Program, New Mexico State University, P.O. Box 30001, Las Cruces, NM, 88003, USA
| | - Colleen McMahan
- United States Department of Agriculture-Agricultural Research Service-Western Regional Research Center, 800 Buchanan Street, Albany, CA, 94710, USA
| | - F Omar Holguin
- Department of Plant and Environmental Sciences, New Mexico State University, P.O. Box 30001, Las Cruces, NM, 88003, USA
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2
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Sapkota G, Delgado E, VanLeeuwen D, Holguin FO, Flores N, Yao S. Preservation of Phenols, Antioxidant Activity, and Cyclic Adenosine Monophosphate in Jujube ( Ziziphus jujuba Mill.) Fruits with Different Drying Methods. Plants (Basel) 2023; 12:plants12091804. [PMID: 37176863 PMCID: PMC10181298 DOI: 10.3390/plants12091804] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 04/23/2023] [Accepted: 04/25/2023] [Indexed: 05/15/2023]
Abstract
Jujube, commonly known as the Chinese date, is a nutritious fruit with medicinal importance. Fresh jujube fruits have a shelf life of about ten days in ambient conditions that can be extended by drying. However, nutrition preservation varies with the drying method and parameters selected. We studied total phenolic content (TPC), proanthocyanidins (PA), vitamin C, cyclic adenosine monophosphate (cAMP), and antioxidant activities in jujube fruits dried with freeze-drying (FD), convective oven drying (OD) at 50 °C, 60 °C, and 75 °C, and sun drying (SD) with FD as a control. The cultivars used for this study were 'Capri' and 'Xiang' from Las Cruces in 2019, and 'Sugarcane', 'Lang', and 'Sherwood' from Las Cruces and Los Lunas, New Mexico, in 2020. Freeze-drying had the highest of all nutrient components tested, the best estimates of mature jujube fruits' nutrient contents. Compared with FD, the majority of PA (96-99%) and vitamin C (90-93%) was lost during SD or OD processes. The retention rates of antioxidant activities: DPPH and FRAP were higher in OD at 50/60 °C than SD. SD retained a higher cAMP level than OD at 50/60 °C in both years. The increase in oven drying temperature from 60 °C to 75 °C significantly decreased TPC, PA, antioxidant activities, and cAMP.
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Affiliation(s)
- Govinda Sapkota
- Department of Plant and Environmental Sciences, New Mexico State University, Las Cruces, NM 88003, USA
| | - Efren Delgado
- Center of Excellence in Sustainable Food and Agricultural Systems, New Mexico State University, Las Cruces, NM 88003, USA
| | - Dawn VanLeeuwen
- Department of Economics, Applied Statistics, and International Business, New Mexico State University, Las Cruces, NM 88003, USA
| | - F Omar Holguin
- Department of Plant and Environmental Sciences, New Mexico State University, Las Cruces, NM 88003, USA
| | - Nancy Flores
- Department of Extension Family and Consumer Sciences, New Mexico State University, Las Cruces, NM 88003, USA
| | - Shengrui Yao
- Department of Plant and Environmental Sciences, New Mexico State University, Las Cruces, NM 88003, USA
- Sustainable Agriculture Science Center, New Mexico State University, Alcalde, NM 87511, USA
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Luker HA, Salas KR, Esmaeili D, Holguin FO, Bendzus-Mendoza H, Hansen IA. Repellent efficacy of 20 essential oils on Aedes aegypti mosquitoes and Ixodes scapularis ticks in contact-repellency assays. Sci Rep 2023; 13:1705. [PMID: 36717735 PMCID: PMC9886999 DOI: 10.1038/s41598-023-28820-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 01/25/2023] [Indexed: 01/31/2023] Open
Abstract
Cases of mosquito- and tick-borne diseases are rising worldwide. Repellent products can protect individual users from being infected by such diseases. In a previous study, we identified five essential oils that display long-distance mosquito repellency using a Y-tube olfactometer assay. In the current study, the contact repellent efficacy of 20 active ingredients from the Environmental Protection Agency's (EPA) Minimum Risk Pesticides list were tested using Aedes aegypti and Ixodes scapularis. We utilized an arm-in-cage assay to measure complete protection time from mosquito bites for these active ingredients. To measure tick repellency, we used an EPA-recommended procedure to measure the complete protection time from tick crossings. We found that of the 20 ingredients tested, 10% v/v lotion emulsions with clove oil or cinnamon oil provided the longest protection from both mosquito bites and tick crossings. We conclude that in a 10% v/v emulsion, specific active ingredients from the EPA Minimum Risk Pesticides list can provide complete protection from mosquito bites and tick crossings for longer than one hour.
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Affiliation(s)
- Hailey A Luker
- Department of Biology, New Mexico State University, 1200 S. Horseshoe Dr., Las Cruces, NM, 88003, USA.
| | - Keyla R Salas
- Department of Biology, New Mexico State University, 1200 S. Horseshoe Dr., Las Cruces, NM, 88003, USA
| | - Delaram Esmaeili
- Department of Biology, New Mexico State University, 1200 S. Horseshoe Dr., Las Cruces, NM, 88003, USA
| | - F Omar Holguin
- Department of Plant and Environmental Sciences, New Mexico State University, Skeen Hall, Las Cruces, NM, 88003, USA
| | - Harley Bendzus-Mendoza
- Department of Computer Science, New Mexico State University, 1290 Frenger Mall, Las Cruces, NM, 88003, USA
| | - Immo A Hansen
- Department of Biology, New Mexico State University, 1200 S. Horseshoe Dr., Las Cruces, NM, 88003, USA
- Institute for Applied Biosciences, New Mexico State University, 1200 S. Horseshoe Dr., Las Cruces, NM, 88003, USA
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Golliher AE, Tenorio AJ, Cornali BM, Monroy EY, Tello-Aburto R, Holguin FO, Maio WA. The synthesis and use of γ-chloro-enamides for the subsequent construction of novel enamide-containing small molecules. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Oyebamiji OO, Corcoran AA, Navarro Pérez E, Ilori MO, Amund OO, Holguin FO, Boeing WJ. Lead tolerance and bioremoval by four strains of green algae from Nigerian fish ponds. ALGAL RES 2021. [DOI: 10.1016/j.algal.2021.102403] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Shrestha UK, Golliher AE, Newar TD, Holguin FO, Maio WA. Asymmetric Total Synthesis and Revision of Absolute Stereochemistry for (+)-Taumycin A: An Approach that Exploits Orthogonally Protected Quasienantiomers. J Org Chem 2021; 86:11086-11099. [PMID: 33444024 DOI: 10.1021/acs.joc.0c02820] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The first asymmetric total synthesis of C(9)-S-(+)-taumycin A is now reported using an approach that targeted both C(9) diastereomers concurrently. To facilitate this work, we called upon the symmetrical nature of a C(5)-C(13) side-chain intermediate and exploited orthogonal protecting groups as a tactic to access both stereoisomers from a single chiral, nonracemic intermediate. In addition to our successful approach, several minor detours that helped refine our strategy and a detailed analysis of 1H NMR data will be discussed. Select compounds included in this work were screened against the NCI60 cell line panel and displayed modest growth inhibition activity.
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Affiliation(s)
| | | | | | | | - William A Maio
- New Mexico State University, Department of Chemistry and Biochemistry, Las Cruces, New Mexico 88003, United States
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Pinch M, Mitra S, Rodriguez SD, Li Y, Kandel Y, Dungan B, Holguin FO, Attardo GM, Hansen IA. Fat and Happy: Profiling Mosquito Fat Body Lipid Storage and Composition Post-blood Meal. Front Insect Sci 2021; 1:693168. [PMID: 38468893 PMCID: PMC10926494 DOI: 10.3389/finsc.2021.693168] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 05/20/2021] [Indexed: 03/13/2024]
Abstract
The fat body is considered the insect analog of vertebrate liver and fat tissue. In mosquitoes, a blood meal triggers a series of processes in the fat body that culminate in vitellogenesis, the process of yolk formation. Lipids are stored in the fat body in specialized organelles called lipid droplets that change in size depending on the nutritional and metabolic status of the insect. We surveyed lipid droplets in female Aedes aegypti fat body during a reproductive cycle using confocal microscopy and analyzed the dynamic changes in the fat body lipidome during this process using LC/MS. We found that lipid droplets underwent dynamic changes in volume after the mosquito took a blood meal. The lipid composition found in the fat body is quite complex with 117 distinct lipids that fall into 19 classes and sublcasses. Our results demonstrate that the lipid composition of the fat body is complex as most lipid classes underwent significant changes over the course of the vitellogenic cycle. This study lays the foundation for identifying unknown biochemical pathways active in the mosquito fat body, that are high-value targets for the development of novel mosquito control strategies.
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Affiliation(s)
- Matthew Pinch
- Department of Biology, New Mexico State University, Las Cruces, NM, United States
| | - Soumi Mitra
- Department of Biology, New Mexico State University, Las Cruces, NM, United States
| | - Stacy D. Rodriguez
- Department of Biology, New Mexico State University, Las Cruces, NM, United States
| | - Yiyi Li
- Department of Computer Science, New Mexico State University, Las Cruces, NM, United States
| | - Yashoda Kandel
- Department of Biology, New Mexico State University, Las Cruces, NM, United States
| | - Barry Dungan
- Department of Plant and Environmental Sciences, New Mexico State University, Las Cruces, NM, United States
| | - F. Omar Holguin
- Department of Plant and Environmental Sciences, New Mexico State University, Las Cruces, NM, United States
| | - Geoffrey M. Attardo
- Department of Entomology and Nematology, University of California, Davis, Davis, CA, United States
| | - Immo A. Hansen
- Department of Biology, New Mexico State University, Las Cruces, NM, United States
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8
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Golliher AE, Tenorio AJ, Dimauro NO, Mairata NR, Holguin FO, Maio W. Using (+)-Carvone to access novel derivatives of (+)- ent-Cannabidiol: the first asymmetric syntheses of (+)- ent-CBDP and (+)- ent-CBDV. Tetrahedron Lett 2021; 67:152891. [PMID: 34658452 PMCID: PMC8513745 DOI: 10.1016/j.tetlet.2021.152891] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
(-)-Cannabidiol [(-)-CBD] has recently gained prominence as a treatment for neuro-inflammation and other neurodegenerative disorders; interest is also developing in its synthetic enantiomer, (+)-CBD, which has a higher affinity to CB1 / CB2 receptors than the natural stereoisomer. We have developed an inexpensive, stereoselective route to access ent-CBD derivatives using (+)-carvone as a starting material. In addition to (+)-CBD, we report the first syntheses of (+)-cannabidivarin, (+)-cannabidiphorol as well as C-6 / C-8 homologues.
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Affiliation(s)
- Alexandra E. Golliher
- Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, NM 88003
| | - Antonio J. Tenorio
- Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, NM 88003
| | - Nina O. Dimauro
- Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, NM 88003
| | - Nicolas R. Mairata
- Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, NM 88003
| | - F. Omar Holguin
- Department of Plant and Environmental Sciences, New Mexico State University, Las Cruces, NM 88003
| | - William Maio
- Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, NM 88003
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9
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Dehghanizadeh M, Cheng F, Jarvis JM, Holguin FO, Brewer CE. Characterization of resin extracted from guayule ( Parthenium argentatum): A dataset including GC-MS and FT-ICR MS. Data Brief 2020; 31:105989. [PMID: 32715039 PMCID: PMC7371977 DOI: 10.1016/j.dib.2020.105989] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 06/26/2020] [Accepted: 07/01/2020] [Indexed: 11/29/2022] Open
Abstract
Guayule (Parthenium argentatum), a shrub native to the arid region of the U.S. southwest and Mexico belonging to the Asteraceae family, is a source of high quality, hypoallergenic natural rubber with applications in pharmaceutical, tire, and food industries. Production of rubber results in a substantial amount of resin-containing residues which contain a wide variety of secondary metabolites (sesquiterpene esters, triterpene alcohols, fatty acids, etc.). In order to enhance the economic viability of guayule as an industrial crop, value-added use of the residues is needed and has the potential to reduce gross rubber production costs. The main objective of this research is the characterization of guayule resin using rapid and accurate analytical techniques to identify compounds of potential commercial value. Guayule resin is inherently complex and includes many high-molecular-weight and non-volatile compounds that are not easy to observe using traditional chromatographic techniques. The combination of two mass spectroscopy techniques: gas chromatography mass spectroscopy (GC–MS) and high-resolution Fourier transform ion cyclotron resonance mass spectroscopy (FT-ICR MS), were used to characterize the composition of the extracted resin from guayule (Parthenium argentatum). FT-ICR MS was used to characterize hundreds of compounds with over a wide range of molecular weights and degrees of aromaticity at higher levels of mass accuracy than other forms of mass spectrometry. GC–MS was used to identify volatile compounds like mono- and sesquiterpene compounds.
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Affiliation(s)
- Mostafa Dehghanizadeh
- Department of Chemical and Materials Engineering, New Mexico State University, P.O. Box 30001 MSC 3805, Las Cruces, NM 88003, USA
| | - Feng Cheng
- Department of Chemical and Materials Engineering, New Mexico State University, P.O. Box 30001 MSC 3805, Las Cruces, NM 88003, USA
| | - Jacqueline M Jarvis
- Department of Plant and Environmental Sciences, New Mexico State University, Las Cruces, NM 88003, USA
| | - F Omar Holguin
- Department of Plant and Environmental Sciences, New Mexico State University, Las Cruces, NM 88003, USA
| | - Catherine E Brewer
- Department of Chemical and Materials Engineering, New Mexico State University, P.O. Box 30001 MSC 3805, Las Cruces, NM 88003, USA
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Medina-Gurrola E, Berruecos S, Canton MC, Torres AS, Dungan B, Holguin FO, Serrano EE. Lipidome Profiles of Glioblastoma and Ductal Carcinoma Cell Lines. Biophys J 2020. [DOI: 10.1016/j.bpj.2019.11.2556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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12
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Oyebamiji OO, Boeing WJ, Holguin FO, Ilori O, Amund O. Green microalgae cultured in textile wastewater for biomass generation and biodetoxification of heavy metals and chromogenic substances. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.biteb.2019.100247] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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13
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Corcoran AA, Seger M, Niu R, Nirmalakhandan N, Lammers PJ, Holguin FO, Boeing WJ. Evidence for induced allelopathy in an isolate of Coelastrella following co-culture with Chlorella sorokiniana. ALGAL RES 2019. [DOI: 10.1016/j.algal.2019.101535] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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14
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Seger M, Unc A, Starkenburg SR, Holguin FO, Lammers PJ. Nutrient-driven algal-bacterial dynamics in semi-continuous, pilot-scale photobioreactor cultivation of Nannochloropsis salina CCMP1776 with municipal wastewater nutrients. ALGAL RES 2019. [DOI: 10.1016/j.algal.2019.101457] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Khan NA, Johnson MD, Kubicki JD, Holguin FO, Dungan B, Carroll KC. Cyclodextrin-enhanced 1,4-dioxane treatment kinetics with TCE and 1,1,1-TCA using aqueous ozone. Chemosphere 2019; 219:335-344. [PMID: 30551099 DOI: 10.1016/j.chemosphere.2018.11.200] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 11/27/2018] [Accepted: 11/28/2018] [Indexed: 06/09/2023]
Abstract
Enhanced reactivity of aqueous ozone (O3) with hydroxypropyl-β-cyclodextrin (HPβCD) and its impact on relative reactivity of O3 with contaminants were evaluated herein. Oxidation kinetics of 1,4-dioxane, trichloroethylene (TCE), and 1,1,1-trichloroethane (TCA) using O3 in single and multiple contaminant systems, with and without HPβCD, were quantified. 1,4-Dioxane decay rate constants for O3 in the presence of HPβCD increased compared to those without HPβCD. Density functional theory molecular modeling confirmed that formation of ternary complexes with HPβCD, O3, and contaminant increased reactivity by increasing reactant proximity and through additional reactivity within the HPβCD cavity. In the presence of chlorinated co-contaminants, the oxidation rate constant of 1,4-dioxane was enhanced. Use of HPβCD enabled O3 reactivity within the HPβCD cavity and enhanced 1,4-dioxane treatment rates without inhibition in the presence of TCE, TCA, and radical scavengers including NaCl and bicarbonate. Micro-environmental chemistry within HPβCD inclusion cavities mediated contaminant oxidation reactions with increased reaction specificity.
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Affiliation(s)
- Naima A Khan
- Water Science and Management Program, New Mexico State University, MSC 3Q P.O. Box 30003, Las Cruces, NM 88003, USA; Plant & Environmental Science, New Mexico State University, MSC 3Q P.O. Box 30003, Las Cruces, NM 88003, USA
| | - Michael D Johnson
- Department of Chemistry and Biochemistry, New Mexico State University, MSC 3C P.O. Box 30001, Las Cruces, NM 88003, USA
| | - James D Kubicki
- Department of Geological Sciences, University of Texas at El Paso, El Paso, TX 79968-0555, USA
| | - F Omar Holguin
- Plant & Environmental Science, New Mexico State University, MSC 3Q P.O. Box 30003, Las Cruces, NM 88003, USA
| | - Barry Dungan
- Plant & Environmental Science, New Mexico State University, MSC 3Q P.O. Box 30003, Las Cruces, NM 88003, USA
| | - Kenneth C Carroll
- Water Science and Management Program, New Mexico State University, MSC 3Q P.O. Box 30003, Las Cruces, NM 88003, USA; Plant & Environmental Science, New Mexico State University, MSC 3Q P.O. Box 30003, Las Cruces, NM 88003, USA.
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Brusseau ML, Yan N, Van Glubt S, Wang Y, Chen W, Lyu Y, Dungan B, Carroll KC, Holguin FO. Comprehensive retention model for PFAS transport in subsurface systems. Water Res 2019; 148:41-50. [PMID: 30343197 PMCID: PMC6294326 DOI: 10.1016/j.watres.2018.10.035] [Citation(s) in RCA: 99] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 10/12/2018] [Accepted: 10/12/2018] [Indexed: 05/19/2023]
Abstract
A comprehensive compartment model is presented for PFAS retention that incorporates all potential processes relevant for transport in source zones. Miscible-displacement experiments were conducted to investigate separately the impact of adsorption at the air-water and decane-water interfaces on PFAS retention and transport. Two porous media were used, a quartz sand and a soil, and perfluorooctanesulfonic acid (PFOS) was used as the model PFAS. The breakthrough curves for transport under water-unsaturated conditions were shifted noticeably rightward (delayed arrival) compared to the breakthrough curves for saturated conditions, indicating greater retardation due to adsorption at the air-water or decane-water interface. The retardation factor was 7 for PFOS transport in the sand for the air-water system, compared to 1.8 for saturated conditions. PFOS retardation factors for transport in the soil were 7.3 and 3.6 for unsaturated (air-water) vs saturated conditions. Air-water interfacial adsorption is a significant source of retention for PFOS in these two systems, contributing more than 80% of total retention for the sand and 32% for the soil. For the experiments conducted with decane residual emplaced within the sand, adsorption at the decane-water interface contributed more than 70% to total retention for PFOS transport. Methods to determine or estimate key distribution variables are presented for parameterization of the model. Predicted retardation factors were similar to the measured values, indicating that the conceptual model provided adequate representation of the relevant retention processes and that the parameter estimation methods produced reasonable values. The results of this work indicate that adsorption by fluid-fluid interfaces in variably saturated porous media can be a significant retention process for PFAS that should be considered when characterizing their transport and fate behavior in source zones.
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Affiliation(s)
- Mark L Brusseau
- Soil, Water, and Environmental Science Department, University of Arizona, Tucson, AZ, 85721, United States; Hydrology and Atmospheric Sciences Department, University of Arizona, Tucson, AZ, 85721, United States.
| | - Ni Yan
- Hydrology and Atmospheric Sciences Department, University of Arizona, Tucson, AZ, 85721, United States
| | - Sarah Van Glubt
- Soil, Water, and Environmental Science Department, University of Arizona, Tucson, AZ, 85721, United States
| | - Yake Wang
- Soil, Water, and Environmental Science Department, University of Arizona, Tucson, AZ, 85721, United States
| | - Wei Chen
- Soil, Water, and Environmental Science Department, University of Arizona, Tucson, AZ, 85721, United States
| | - Ying Lyu
- Soil, Water, and Environmental Science Department, University of Arizona, Tucson, AZ, 85721, United States; Institute of Water Resources and Environment, Jilin University, Changchun, 130026, PR China
| | - Barry Dungan
- Department of Plant & Environmental Sciences, New Mexico State University, Las Cruces, NM, United States
| | - Kenneth C Carroll
- Department of Plant & Environmental Sciences, New Mexico State University, Las Cruces, NM, United States
| | - F Omar Holguin
- Department of Plant & Environmental Sciences, New Mexico State University, Las Cruces, NM, United States
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17
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Bailey SJ, Sapkota RR, Golliher AE, Dungan B, Talipov M, Holguin FO, Maio WA. Lewis-Acid-Mediated Union of Epoxy-Carvone Diastereomers with Anisole Derivatives: Mechanistic Insight and Application to the Synthesis of Non-natural CBD Analogues. Org Lett 2018; 20:4618-4621. [PMID: 30033728 DOI: 10.1021/acs.orglett.8b01909] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The use of trimethylsilyl trifluoromethanesulfonate as a mild means to unite epoxy-carvone silyl ethers with anisole derivatives to yield products that are structurally similar to the CBD scaffold is reported. Importantly, unlike related methods, this process can utilize both epoxy-carvone diastereomers and does not require the use of air/moisture-sensitive organometallic reagents. Several examples of aryl nucleophiles as well as mechanistic insight based on in silico computational analysis are presented.
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Gonzales KK, Rodriguez SD, Chung HN, Kowalski M, Vulcan J, Moore EL, Li Y, Willette SM, Kandel Y, Van Voorhies WA, Holguin FO, Hanley KA, Hansen IA. The Effect of SkitoSnack, an Artificial Blood Meal Replacement, on Aedes aegypti Life History Traits and Gut Microbiota. Sci Rep 2018; 8:11023. [PMID: 30038361 PMCID: PMC6056539 DOI: 10.1038/s41598-018-29415-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Accepted: 07/09/2018] [Indexed: 12/14/2022] Open
Abstract
Public health research and vector control frequently require the rearing of large numbers of vector mosquitoes. All target vector mosquito species are anautogenous, meaning that females require vertebrate blood for egg production. Vertebrate blood, however, is costly, with a short shelf life. To overcome these constraints, we have developed SkitoSnack, an artificial blood meal replacement for the mosquito Aedes aegypti, the vector of dengue, Zika and chikungunya virus. SkitoSnack contains bovine serum albumin and hemoglobin as protein source as well as egg yolk and a bicarbonate buffer. SkitoSnack-raised females had comparable life history traits as blood-raised females. Mosquitoes reared from SkitoSnack-fed females had similar levels of infection and dissemination when orally challenged with dengue virus type 2 (DENV-2) and significantly lower infection with DENV-4. When SkitoSnack was used as a vehicle for DENV-2 delivery, blood-raised and SkitoSnack-raised females were equally susceptible. The midgut microbiota differed significantly between mosquitoes fed on SkitoSnack and mosquitoes fed on blood. By rearing 20 generations of Aedes exclusively on SkitoSnack, we have proven that this artificial diet can replace blood in mosquito mass rearing.
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Affiliation(s)
- Kristina K Gonzales
- Department of Biology, New Mexico State University, Las Cruces, NM, 88003, USA
| | - Stacy D Rodriguez
- Department of Biology, New Mexico State University, Las Cruces, NM, 88003, USA
| | - Hae-Na Chung
- Department of Biology, New Mexico State University, Las Cruces, NM, 88003, USA
| | - Margaret Kowalski
- Department of Biology, New Mexico State University, Las Cruces, NM, 88003, USA
| | - Julia Vulcan
- Department of Biology, New Mexico State University, Las Cruces, NM, 88003, USA
| | - Emily L Moore
- Department of Biology, New Mexico State University, Las Cruces, NM, 88003, USA
| | - Yiyi Li
- Department of Computer Science, New Mexico State University, Las Cruces, NM, USA
| | - Stephanie M Willette
- Department of Plant and Environmental Sciences, New Mexico State University, Las Cruces, NM, USA
| | - Yashoda Kandel
- Department of Biology, New Mexico State University, Las Cruces, NM, 88003, USA
| | | | - F Omar Holguin
- Molecular Biology Program, New Mexico State University, Las Cruces, NM, USA
- Department of Plant and Environmental Sciences, New Mexico State University, Las Cruces, NM, USA
| | - Kathryn A Hanley
- Department of Biology, New Mexico State University, Las Cruces, NM, 88003, USA
- Molecular Biology Program, New Mexico State University, Las Cruces, NM, USA
| | - Immo A Hansen
- Department of Biology, New Mexico State University, Las Cruces, NM, 88003, USA.
- Institute of Applied Biosciences, New Mexico State University, Las Cruces, NM, USA.
- Molecular Biology Program, New Mexico State University, Las Cruces, NM, USA.
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Willette S, Gill SS, Dungan B, Schaub TM, Jarvis JM, St. Hilaire R, Omar Holguin F. Alterations in lipidome and metabolome profiles of Nannochloropsis salina in response to reduced culture temperature during sinusoidal temperature and light. ALGAL RES 2018. [DOI: 10.1016/j.algal.2018.03.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Affiliation(s)
- Amol Nankar
- Department of Plant and Environmental Sciences, New Mexico State University, Las Cruces, NM, U.S.A
- Current address: Texas A&M AgriLife Research and Extension Center, 1102 East FM 1294, Lubbock, TX 79403, U.S.A
| | - F. Omar Holguin
- Department of Plant and Environmental Sciences, New Mexico State University, Las Cruces, NM, U.S.A
| | - M. Paul Scott
- USDA-ARS, Corn Insects and Crop Genetics Research Unit, Ames, IA, U.S.A
| | - Richard C. Pratt
- Department of Plant and Environmental Sciences, New Mexico State University, Las Cruces, NM, U.S.A
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Dandamudi KPR, Muppaneni T, Sudasinghe N, Schaub T, Holguin FO, Lammers PJ, Deng S. Co-liquefaction of mixed culture microalgal strains under sub-critical water conditions. Bioresour Technol 2017; 236:129-137. [PMID: 28399416 DOI: 10.1016/j.biortech.2017.03.165] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Revised: 03/22/2017] [Accepted: 03/28/2017] [Indexed: 06/07/2023]
Abstract
We report the co-liquefaction performance of unicellular, red alga Cyanidioschyzon merolae and Galdieria sulphuraria under sub-critical water conditions within a stainless-steel batch reactor under different temperatures (150-300°C), residence time (15-60min), and Cyanidioschyzon merolae to Galdieria sulphuraria mass loading (0-100%). Individual liquefaction of C. merolae and G. sulphuraria at 300°C achieved maximum biocrude oil yield of 18.9 and 14.0%, respectively. The yield of biocrude oil increased to 25.5%, suggesting a positive synergistic effect during the co-liquefaction of 80-20mass loading of C. merolae to G. sulphuraria. The biocrude oils were analyzed by FT-ICR MS which showed that co-liquefaction did not significantly affect the distribution of product compounds compared to individual oils. The co-liquefied biocrude and biochar have a higher-heating-value of 35.28 and 7.96MJ/kg. Ultimate and proximate analysis were performed on algae biomass, biocrude and biochar.
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Affiliation(s)
- Kodanda Phani Raj Dandamudi
- Chemical Engineering Department, New Mexico State University, Las Cruces, NM 88003, USA; School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ 85287, USA
| | - Tapaswy Muppaneni
- Chemical Engineering Department, New Mexico State University, Las Cruces, NM 88003, USA; School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ 85287, USA
| | - Nilusha Sudasinghe
- Chemical Analysis and Instrumentation Laboratory, New Mexico State University, Las Cruces, NM 88003, USA; Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - Tanner Schaub
- Chemical Analysis and Instrumentation Laboratory, New Mexico State University, Las Cruces, NM 88003, USA
| | - F Omar Holguin
- Plant and Environmental Sciences, New Mexico State University, Las Cruces, NM 88003, USA
| | - Peter J Lammers
- School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ 85287, USA
| | - Shuguang Deng
- Chemical Engineering Department, New Mexico State University, Las Cruces, NM 88003, USA; School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ 85287, USA.
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22
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Muppaneni T, Reddy HK, Selvaratnam T, Dandamudi KPR, Dungan B, Nirmalakhandan N, Schaub T, Omar Holguin F, Voorhies W, Lammers P, Deng S. Hydrothermal liquefaction of Cyanidioschyzon merolae and the influence of catalysts on products. Bioresour Technol 2017; 223:91-97. [PMID: 27788432 DOI: 10.1016/j.biortech.2016.10.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 10/05/2016] [Accepted: 10/06/2016] [Indexed: 06/06/2023]
Abstract
This work investigates the hydrothermal liquefaction (HTL) of Cyanidioschyzon merolae algal species under various reaction temperatures and catalysts. Liquefaction of microalgae was performed with 10% solid loading for 30min at temperatures of 180-300°C to study the influences of two base and two acid catalysts on HTL product fractions. Maximum biocrude oil yield of 16.98% was obtained at 300°C with no catalyst. The biocrude oil yield increased to 22.67% when KOH was introduced into the reaction mixture as a catalyst. The algal biocrude and biochar has a higher heating values (HHV) of 32.22MJkg-1 and 20.78MJkg-1 respectively when no catalyst was used. Gas chromatography time of flight mass spectrometry (GC/TOFMS) was employed to analyze the biocrude oil composition, and elemental analysis was performed on the algae, biocrude and biochar samples. Analysis of the HTL aqueous phase revealed the presence of valuable products.
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Affiliation(s)
- Tapaswy Muppaneni
- Chemical and Materials Engineering Department, New Mexico State University, Las Cruces, NM 88003, USA; School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ 85287, USA
| | - Harvind K Reddy
- Chemical and Materials Engineering Department, New Mexico State University, Las Cruces, NM 88003, USA
| | - Thinesh Selvaratnam
- School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ 85287, USA
| | | | - Barry Dungan
- Plant and Environmental Sciences, New Mexico State University, Las Cruces, NM 88003, USA
| | | | - Tanner Schaub
- Chemical Analysis and Instrumentation Laboratory, New Mexico State University, Las Cruces, NM 88003, USA
| | - F Omar Holguin
- Plant and Environmental Sciences, New Mexico State University, Las Cruces, NM 88003, USA
| | - Wayne Voorhies
- Molecular Biology, New Mexico State University, Las Cruces, NM 88003, USA
| | - Peter Lammers
- School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ 85287, USA
| | - Shuguang Deng
- Chemical and Materials Engineering Department, New Mexico State University, Las Cruces, NM 88003, USA; School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ 85287, USA.
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Nankar AN, Dungan B, Paz N, Sudasinghe N, Schaub T, Holguin FO, Pratt RC. Quantitative and qualitative evaluation of kernel anthocyanins from southwestern United States blue corn. J Sci Food Agric 2016; 96:4542-4552. [PMID: 26879128 DOI: 10.1002/jsfa.7671] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Revised: 02/03/2016] [Accepted: 02/08/2016] [Indexed: 06/05/2023]
Abstract
BACKGROUND Anthocyanin-rich blue corn is an emerging specialty crop in the USA. The antioxidant properties of blue corn offer health benefits in the human diet. The objectives of this study were to identify, characterize and quantify the anthocyanins from blue corn. Hypotheses tested were that total anthocyanin content was similar among southwestern US accessions and that it would vary across locations. It was also examined whether different anthocyanin components were unique to certain genotypes. RESULTS Across all locations and accessions, an average of 0.43 g kg(-1) total anthocyanin content (TAC) was observed. Accessions Santa Clara Blue and Ohio Blue displayed the highest TAC. The TAC of accession Flor del Rio was lower by nearly a factor of six. A total of five anthocyanin components were identified. Cyanidin 3-glucoside was the most abundant, followed by pelargonidin and peonidin 3-glucoside. Succinyl and disuccinyl glycosidic forms of cyanidin were also identified. Cyanidin 3-disuccinylglucoside was newly identified as a novel form of anthocyanin. CONCLUSION Quantitative and qualitative anthocyanin expression was determined to be relatively stable across multiple southwestern environments. Increased expression of red and purple pigmentation in accession Flor del Rio appeared to be associated more with reduced TAC and cyanidin 3-glucoside than with elevated pelargonidin per se. A previously unreported anthocyanin component in blue corn, cyanidin 3-disuccinylglucoside, is present in southwestern landraces. © 2016 Society of Chemical Industry.
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Affiliation(s)
- Amol N Nankar
- Department of Plant and Environmental Sciences, New Mexico State University, Skeen Hall, MSC 3Q, PO Box 30003, Las Cruces, NM, 88003-8003, USA
| | - Barry Dungan
- Department of Plant and Environmental Sciences, New Mexico State University, Skeen Hall, MSC 3Q, PO Box 30003, Las Cruces, NM, 88003-8003, USA
| | - Neil Paz
- Chemical Analysis and Instrumentation Laboratory, New Mexico State University, 945 College Avenue, Las Cruces, NM, 88003-8003, USA
| | - Nilusha Sudasinghe
- Chemical Analysis and Instrumentation Laboratory, New Mexico State University, 945 College Avenue, Las Cruces, NM, 88003-8003, USA
| | - Tanner Schaub
- Chemical Analysis and Instrumentation Laboratory, New Mexico State University, 945 College Avenue, Las Cruces, NM, 88003-8003, USA
| | - F Omar Holguin
- Department of Plant and Environmental Sciences, New Mexico State University, Skeen Hall, MSC 3Q, PO Box 30003, Las Cruces, NM, 88003-8003, USA
| | - Richard C Pratt
- Department of Plant and Environmental Sciences, New Mexico State University, Skeen Hall, MSC 3Q, PO Box 30003, Las Cruces, NM, 88003-8003, USA
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Khan NA, Engle M, Dungan B, Holguin FO, Xu P, Carroll KC. Volatile-organic molecular characterization of shale-oil produced water from the Permian Basin. Chemosphere 2016; 148:126-36. [PMID: 26802271 DOI: 10.1016/j.chemosphere.2015.12.116] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 12/23/2015] [Accepted: 12/27/2015] [Indexed: 05/24/2023]
Abstract
Growth in unconventional oil and gas has spurred concerns on environmental impact and interest in beneficial uses of produced water (PW), especially in arid regions such as the Permian Basin, the largest U.S. tight-oil producer. To evaluate environmental impact, treatment, and reuse potential, there is a need to characterize the compositional variability of PW. Although hydraulic fracturing has caused a significant increase in shale-oil production, there are no high-resolution organic composition data for the shale-oil PW from the Permian Basin or other shale-oil plays (Eagle Ford, Bakken, etc.). PW was collected from shale-oil wells in the Midland sub-basin of the Permian Basin. Molecular characterization was conducted using high-resolution solid phase micro extraction gas chromatography time-of-flight mass spectrometry. Approximately 1400 compounds were identified, and 327 compounds had a >70% library match. PW contained alkane, cyclohexane, cyclopentane, BTEX (benzene, toluene, ethylbenzene, and xylene), alkyl benzenes, propyl-benzene, and naphthalene. PW also contained heteroatomic compounds containing nitrogen, oxygen, and sulfur. 3D van Krevelen and double bond equivalence versus carbon number analyses were used to evaluate molecular variability. Source composition, as well as solubility, controlled the distribution of volatile compounds found in shale-oil PW. The salinity also increased with depth, ranging from 105 to 162 g/L total dissolved solids. These data fill a gap for shale-oil PW composition, the associated petroleomics plots provide a fingerprinting framework, and the results for the Permian shale-oil PW suggest that partial treatment of suspended solids and organics would support some beneficial uses such as onsite reuse and bio-energy production.
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Affiliation(s)
- Naima A Khan
- New Mexico State University, Las Cruces, NM, USA
| | - Mark Engle
- U.S. Geological Survey, El Paso, TX, USA
| | - Barry Dungan
- New Mexico State University, Las Cruces, NM, USA
| | | | - Pei Xu
- New Mexico State University, Las Cruces, NM, USA
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Gargouri M, Park JJ, Holguin FO, Kim MJ, Wang H, Deshpande RR, Shachar-Hill Y, Hicks LM, Gang DR. Identification of regulatory network hubs that control lipid metabolism in Chlamydomonas reinhardtii. J Exp Bot 2015; 66:4551-66. [PMID: 26022256 PMCID: PMC4507760 DOI: 10.1093/jxb/erv217] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Microalgae-based biofuels are promising sources of alternative energy, but improvements throughout the production process are required to establish them as economically feasible. One of the most influential improvements would be a significant increase in lipid yields, which could be achieved by altering the regulation of lipid biosynthesis and accumulation. Chlamydomonas reinhardtii accumulates oil (triacylglycerols, TAG) in response to nitrogen (N) deprivation. Although a few important regulatory genes have been identified that are involved in controlling this process, a global understanding of the larger regulatory network has not been developed. In order to uncover this network in this species, a combined omics (transcriptomic, proteomic and metabolomic) analysis was applied to cells grown in a time course experiment after a shift from N-replete to N-depleted conditions. Changes in transcript and protein levels of 414 predicted transcription factors (TFs) and transcriptional regulators (TRs) were monitored relative to other genes. The TF and TR genes were thus classified by two separate measures: up-regulated versus down-regulated and early response versus late response relative to two phases of polar lipid synthesis (before and after TAG biosynthesis initiation). Lipidomic and primary metabolite profiling generated compound accumulation levels that were integrated with the transcript dataset and TF profiling to produce a transcriptional regulatory network. Evaluation of this proposed regulatory network led to the identification of several regulatory hubs that control many aspects of cellular metabolism, from N assimilation and metabolism, to central metabolism, photosynthesis and lipid metabolism.
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Affiliation(s)
- Mahmoud Gargouri
- Institute of Biological Chemistry, Washington State University, Pullman, WA 99164, USA
| | - Jeong-Jin Park
- Institute of Biological Chemistry, Washington State University, Pullman, WA 99164, USA
| | - F Omar Holguin
- College of Agricultural, Consumer and Environmental Sciences, New Mexico State University, 1780 E. University Ave, Las Cruces, NM 88003, USA
| | - Min-Jeong Kim
- Institute of Biological Chemistry, Washington State University, Pullman, WA 99164, USA
| | - Hongxia Wang
- Donald Danforth Plant Science Center, 975 North Warson Road, St Louis, MO 63132, USA Current address: National Center of Biomedical Analysis, 27 Taiping Road, Beijing, 100850, China
| | - Rahul R Deshpande
- Department of Plant Biology, Michigan State University, 612 Wilson Road, East Lansing, MI 48864, USA
| | - Yair Shachar-Hill
- Department of Plant Biology, Michigan State University, 612 Wilson Road, East Lansing, MI 48864, USA
| | - Leslie M Hicks
- Donald Danforth Plant Science Center, 975 North Warson Road, St Louis, MO 63132, USA Department of Chemistry, University of North Carolina at Chapel Hill, 125 South Road, Chapel Hill, NC 27516, USA
| | - David R Gang
- Institute of Biological Chemistry, Washington State University, Pullman, WA 99164, USA
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Juergens MT, Deshpande RR, Lucker BF, Park JJ, Wang H, Gargouri M, Holguin FO, Disbrow B, Schaub T, Skepper JN, Kramer DM, Gang DR, Hicks LM, Shachar-Hill Y. The regulation of photosynthetic structure and function during nitrogen deprivation in Chlamydomonas reinhardtii. Plant Physiol 2015; 167:558-73. [PMID: 25489023 PMCID: PMC4326741 DOI: 10.1104/pp.114.250530] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Accepted: 12/01/2014] [Indexed: 05/19/2023]
Abstract
The accumulation of carbon storage compounds by many unicellular algae after nutrient deprivation occurs despite declines in their photosynthetic apparatus. To understand the regulation and roles of photosynthesis during this potentially bioenergetically valuable process, we analyzed photosynthetic structure and function after nitrogen deprivation in the model alga Chlamydomonas reinhardtii. Transcriptomic, proteomic, metabolite, and lipid profiling and microscopic time course data were combined with multiple measures of photosynthetic function. Levels of transcripts and proteins of photosystems I and II and most antenna genes fell with differing trajectories; thylakoid membrane lipid levels decreased, while their proportions remained similar and thylakoid membrane organization appeared to be preserved. Cellular chlorophyll (Chl) content decreased more than 2-fold within 24 h, and we conclude from transcript protein and (13)C labeling rates that Chl synthesis was down-regulated both pre- and posttranslationally and that Chl levels fell because of a rapid cessation in synthesis and dilution by cellular growth rather than because of degradation. Photosynthetically driven oxygen production and the efficiency of photosystem II as well as P700(+) reduction and electrochromic shift kinetics all decreased over the time course, without evidence of substantial energy overflow. The results also indicate that linear electron flow fell approximately 15% more than cyclic flow over the first 24 h. Comparing Calvin-Benson cycle transcript and enzyme levels with changes in photosynthetic (13)CO2 incorporation rates also pointed to a coordinated multilevel down-regulation of photosynthetic fluxes during starch synthesis before the induction of high triacylglycerol accumulation rates.
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Affiliation(s)
- Matthew T Juergens
- Department of Plant Biology (M.T.J., R.R.D., B.D., Y.S.-H.) and Plant Research Laboratory (M.T.J., B.F.L., D.M.K.), Michigan State University, East Lansing, Michigan 48824;Institute of Biological Chemistry, Washington State University, Pullman, Washington 99164 (J.-J.P., M.G., D.R.G.);Donald Danforth Plant Science Center, St. Louis, Missouri 63132 (H.W., L.M.H.);National Center of Biomedical Analysis, Beijing 100850, China (H.W.);College of Agricultural, Consumer, and Environmental Sciences, New Mexico State University, Las Cruces, New Mexico 88003 (F.O.H., T.S.);Department of Physiology, Cambridge Advanced Imaging Centre, Cambridge CB2 3DY, United Kingdom (J.N.S.); andDepartment of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599 (L.M.H.)
| | - Rahul R Deshpande
- Department of Plant Biology (M.T.J., R.R.D., B.D., Y.S.-H.) and Plant Research Laboratory (M.T.J., B.F.L., D.M.K.), Michigan State University, East Lansing, Michigan 48824;Institute of Biological Chemistry, Washington State University, Pullman, Washington 99164 (J.-J.P., M.G., D.R.G.);Donald Danforth Plant Science Center, St. Louis, Missouri 63132 (H.W., L.M.H.);National Center of Biomedical Analysis, Beijing 100850, China (H.W.);College of Agricultural, Consumer, and Environmental Sciences, New Mexico State University, Las Cruces, New Mexico 88003 (F.O.H., T.S.);Department of Physiology, Cambridge Advanced Imaging Centre, Cambridge CB2 3DY, United Kingdom (J.N.S.); andDepartment of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599 (L.M.H.)
| | - Ben F Lucker
- Department of Plant Biology (M.T.J., R.R.D., B.D., Y.S.-H.) and Plant Research Laboratory (M.T.J., B.F.L., D.M.K.), Michigan State University, East Lansing, Michigan 48824;Institute of Biological Chemistry, Washington State University, Pullman, Washington 99164 (J.-J.P., M.G., D.R.G.);Donald Danforth Plant Science Center, St. Louis, Missouri 63132 (H.W., L.M.H.);National Center of Biomedical Analysis, Beijing 100850, China (H.W.);College of Agricultural, Consumer, and Environmental Sciences, New Mexico State University, Las Cruces, New Mexico 88003 (F.O.H., T.S.);Department of Physiology, Cambridge Advanced Imaging Centre, Cambridge CB2 3DY, United Kingdom (J.N.S.); andDepartment of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599 (L.M.H.)
| | - Jeong-Jin Park
- Department of Plant Biology (M.T.J., R.R.D., B.D., Y.S.-H.) and Plant Research Laboratory (M.T.J., B.F.L., D.M.K.), Michigan State University, East Lansing, Michigan 48824;Institute of Biological Chemistry, Washington State University, Pullman, Washington 99164 (J.-J.P., M.G., D.R.G.);Donald Danforth Plant Science Center, St. Louis, Missouri 63132 (H.W., L.M.H.);National Center of Biomedical Analysis, Beijing 100850, China (H.W.);College of Agricultural, Consumer, and Environmental Sciences, New Mexico State University, Las Cruces, New Mexico 88003 (F.O.H., T.S.);Department of Physiology, Cambridge Advanced Imaging Centre, Cambridge CB2 3DY, United Kingdom (J.N.S.); andDepartment of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599 (L.M.H.)
| | - Hongxia Wang
- Department of Plant Biology (M.T.J., R.R.D., B.D., Y.S.-H.) and Plant Research Laboratory (M.T.J., B.F.L., D.M.K.), Michigan State University, East Lansing, Michigan 48824;Institute of Biological Chemistry, Washington State University, Pullman, Washington 99164 (J.-J.P., M.G., D.R.G.);Donald Danforth Plant Science Center, St. Louis, Missouri 63132 (H.W., L.M.H.);National Center of Biomedical Analysis, Beijing 100850, China (H.W.);College of Agricultural, Consumer, and Environmental Sciences, New Mexico State University, Las Cruces, New Mexico 88003 (F.O.H., T.S.);Department of Physiology, Cambridge Advanced Imaging Centre, Cambridge CB2 3DY, United Kingdom (J.N.S.); andDepartment of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599 (L.M.H.)
| | - Mahmoud Gargouri
- Department of Plant Biology (M.T.J., R.R.D., B.D., Y.S.-H.) and Plant Research Laboratory (M.T.J., B.F.L., D.M.K.), Michigan State University, East Lansing, Michigan 48824;Institute of Biological Chemistry, Washington State University, Pullman, Washington 99164 (J.-J.P., M.G., D.R.G.);Donald Danforth Plant Science Center, St. Louis, Missouri 63132 (H.W., L.M.H.);National Center of Biomedical Analysis, Beijing 100850, China (H.W.);College of Agricultural, Consumer, and Environmental Sciences, New Mexico State University, Las Cruces, New Mexico 88003 (F.O.H., T.S.);Department of Physiology, Cambridge Advanced Imaging Centre, Cambridge CB2 3DY, United Kingdom (J.N.S.); andDepartment of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599 (L.M.H.)
| | - F Omar Holguin
- Department of Plant Biology (M.T.J., R.R.D., B.D., Y.S.-H.) and Plant Research Laboratory (M.T.J., B.F.L., D.M.K.), Michigan State University, East Lansing, Michigan 48824;Institute of Biological Chemistry, Washington State University, Pullman, Washington 99164 (J.-J.P., M.G., D.R.G.);Donald Danforth Plant Science Center, St. Louis, Missouri 63132 (H.W., L.M.H.);National Center of Biomedical Analysis, Beijing 100850, China (H.W.);College of Agricultural, Consumer, and Environmental Sciences, New Mexico State University, Las Cruces, New Mexico 88003 (F.O.H., T.S.);Department of Physiology, Cambridge Advanced Imaging Centre, Cambridge CB2 3DY, United Kingdom (J.N.S.); andDepartment of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599 (L.M.H.)
| | - Bradley Disbrow
- Department of Plant Biology (M.T.J., R.R.D., B.D., Y.S.-H.) and Plant Research Laboratory (M.T.J., B.F.L., D.M.K.), Michigan State University, East Lansing, Michigan 48824;Institute of Biological Chemistry, Washington State University, Pullman, Washington 99164 (J.-J.P., M.G., D.R.G.);Donald Danforth Plant Science Center, St. Louis, Missouri 63132 (H.W., L.M.H.);National Center of Biomedical Analysis, Beijing 100850, China (H.W.);College of Agricultural, Consumer, and Environmental Sciences, New Mexico State University, Las Cruces, New Mexico 88003 (F.O.H., T.S.);Department of Physiology, Cambridge Advanced Imaging Centre, Cambridge CB2 3DY, United Kingdom (J.N.S.); andDepartment of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599 (L.M.H.)
| | - Tanner Schaub
- Department of Plant Biology (M.T.J., R.R.D., B.D., Y.S.-H.) and Plant Research Laboratory (M.T.J., B.F.L., D.M.K.), Michigan State University, East Lansing, Michigan 48824;Institute of Biological Chemistry, Washington State University, Pullman, Washington 99164 (J.-J.P., M.G., D.R.G.);Donald Danforth Plant Science Center, St. Louis, Missouri 63132 (H.W., L.M.H.);National Center of Biomedical Analysis, Beijing 100850, China (H.W.);College of Agricultural, Consumer, and Environmental Sciences, New Mexico State University, Las Cruces, New Mexico 88003 (F.O.H., T.S.);Department of Physiology, Cambridge Advanced Imaging Centre, Cambridge CB2 3DY, United Kingdom (J.N.S.); andDepartment of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599 (L.M.H.)
| | - Jeremy N Skepper
- Department of Plant Biology (M.T.J., R.R.D., B.D., Y.S.-H.) and Plant Research Laboratory (M.T.J., B.F.L., D.M.K.), Michigan State University, East Lansing, Michigan 48824;Institute of Biological Chemistry, Washington State University, Pullman, Washington 99164 (J.-J.P., M.G., D.R.G.);Donald Danforth Plant Science Center, St. Louis, Missouri 63132 (H.W., L.M.H.);National Center of Biomedical Analysis, Beijing 100850, China (H.W.);College of Agricultural, Consumer, and Environmental Sciences, New Mexico State University, Las Cruces, New Mexico 88003 (F.O.H., T.S.);Department of Physiology, Cambridge Advanced Imaging Centre, Cambridge CB2 3DY, United Kingdom (J.N.S.); andDepartment of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599 (L.M.H.)
| | - David M Kramer
- Department of Plant Biology (M.T.J., R.R.D., B.D., Y.S.-H.) and Plant Research Laboratory (M.T.J., B.F.L., D.M.K.), Michigan State University, East Lansing, Michigan 48824;Institute of Biological Chemistry, Washington State University, Pullman, Washington 99164 (J.-J.P., M.G., D.R.G.);Donald Danforth Plant Science Center, St. Louis, Missouri 63132 (H.W., L.M.H.);National Center of Biomedical Analysis, Beijing 100850, China (H.W.);College of Agricultural, Consumer, and Environmental Sciences, New Mexico State University, Las Cruces, New Mexico 88003 (F.O.H., T.S.);Department of Physiology, Cambridge Advanced Imaging Centre, Cambridge CB2 3DY, United Kingdom (J.N.S.); andDepartment of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599 (L.M.H.)
| | - David R Gang
- Department of Plant Biology (M.T.J., R.R.D., B.D., Y.S.-H.) and Plant Research Laboratory (M.T.J., B.F.L., D.M.K.), Michigan State University, East Lansing, Michigan 48824;Institute of Biological Chemistry, Washington State University, Pullman, Washington 99164 (J.-J.P., M.G., D.R.G.);Donald Danforth Plant Science Center, St. Louis, Missouri 63132 (H.W., L.M.H.);National Center of Biomedical Analysis, Beijing 100850, China (H.W.);College of Agricultural, Consumer, and Environmental Sciences, New Mexico State University, Las Cruces, New Mexico 88003 (F.O.H., T.S.);Department of Physiology, Cambridge Advanced Imaging Centre, Cambridge CB2 3DY, United Kingdom (J.N.S.); andDepartment of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599 (L.M.H.)
| | - Leslie M Hicks
- Department of Plant Biology (M.T.J., R.R.D., B.D., Y.S.-H.) and Plant Research Laboratory (M.T.J., B.F.L., D.M.K.), Michigan State University, East Lansing, Michigan 48824;Institute of Biological Chemistry, Washington State University, Pullman, Washington 99164 (J.-J.P., M.G., D.R.G.);Donald Danforth Plant Science Center, St. Louis, Missouri 63132 (H.W., L.M.H.);National Center of Biomedical Analysis, Beijing 100850, China (H.W.);College of Agricultural, Consumer, and Environmental Sciences, New Mexico State University, Las Cruces, New Mexico 88003 (F.O.H., T.S.);Department of Physiology, Cambridge Advanced Imaging Centre, Cambridge CB2 3DY, United Kingdom (J.N.S.); andDepartment of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599 (L.M.H.)
| | - Yair Shachar-Hill
- Department of Plant Biology (M.T.J., R.R.D., B.D., Y.S.-H.) and Plant Research Laboratory (M.T.J., B.F.L., D.M.K.), Michigan State University, East Lansing, Michigan 48824;Institute of Biological Chemistry, Washington State University, Pullman, Washington 99164 (J.-J.P., M.G., D.R.G.);Donald Danforth Plant Science Center, St. Louis, Missouri 63132 (H.W., L.M.H.);National Center of Biomedical Analysis, Beijing 100850, China (H.W.);College of Agricultural, Consumer, and Environmental Sciences, New Mexico State University, Las Cruces, New Mexico 88003 (F.O.H., T.S.);Department of Physiology, Cambridge Advanced Imaging Centre, Cambridge CB2 3DY, United Kingdom (J.N.S.); andDepartment of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599 (L.M.H.)
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Park JJ, Wang H, Gargouri M, Deshpande RR, Skepper JN, Holguin FO, Juergens MT, Shachar-Hill Y, Hicks LM, Gang DR. The response of Chlamydomonas reinhardtii to nitrogen deprivation: a systems biology analysis. Plant J 2015; 81:611-24. [PMID: 25515814 DOI: 10.1111/tpj.12747] [Citation(s) in RCA: 124] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2013] [Revised: 12/04/2014] [Accepted: 12/09/2014] [Indexed: 05/18/2023]
Abstract
Drastic alteration in macronutrients causes large changes in gene expression in the photosynthetic unicellular alga Chlamydomonas reinhardtii. Preliminary data suggested that cells follow a biphasic response to this change hinging on the initiation of lipid accumulation, and we hypothesized that drastic repatterning of metabolism also followed this biphasic modality. To test this hypothesis, transcriptomic, proteomic, and metabolite changes that occur under nitrogen (N) deprivation were analyzed. Eight sampling times were selected covering the progressive slowing of growth and induction of oil synthesis between 4 and 6 h after N deprivation. Results of the combined, systems-level investigation indicated that C. reinhardtii cells sense and respond on a large scale within 30 min to a switch to N-deprived conditions turning on a largely gluconeogenic metabolic state, which then transitions to a glycolytic stage between 4 and 6 h after N depletion. This nitrogen-sensing system is transduced to carbon- and nitrogen-responsive pathways, leading to down-regulation of carbon assimilation and chlorophyll biosynthesis, and an increase in nitrogen metabolism and lipid biosynthesis. For example, the expression of nearly all the enzymes for assimilating nitrogen from ammonium, nitrate, nitrite, urea, formamide/acetamide, purines, pyrimidines, polyamines, amino acids and proteins increased significantly. Although arginine biosynthesis enzymes were also rapidly up-regulated, arginine pool size changes and isotopic labeling results indicated no increased flux through this pathway.
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Affiliation(s)
- Jeong-Jin Park
- Institute of Biological Chemistry, Washington State University, Pullman, WA, 99164, USA
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Pegallapati AK, Nirmalakhandan N, Dungan B, Holguin FO, Schaub T. Evaluation of internally illuminated photobioreactor for improving energy ratio. J Biosci Bioeng 2014; 117:92-8. [DOI: 10.1016/j.jbiosc.2013.06.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Revised: 06/18/2013] [Accepted: 06/20/2013] [Indexed: 11/27/2022]
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Patil PD, Reddy H, Muppaneni T, Schaub T, Holguin FO, Cooke P, Lammers P, Nirmalakhandan N, Li Y, Lu X, Deng S. In situ ethyl ester production from wet algal biomass under microwave-mediated supercritical ethanol conditions. Bioresour Technol 2013; 139:308-315. [PMID: 23665692 DOI: 10.1016/j.biortech.2013.04.045] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2013] [Revised: 04/09/2013] [Accepted: 04/11/2013] [Indexed: 06/02/2023]
Abstract
An in situ transesterification approach was demonstrated for converting lipid-rich wet algae (Nannochloropsis salina) into fatty acid ethyl esters (FAEE) under microwave-mediated supercritical ethanol conditions, while preserving the nutrients and other valuable components in the algae. This single-step process can simultaneously and effectively extract the lipids from wet algae and transesterify them into crude biodiesel. Experimental runs were designed to optimize the process parameters and to evaluate their effects on algal biodiesel yield. The algal biomass characterization and algal biodiesel analysis were carried out by using various analytical instruments such as FTIR, SEM-EDS, TLC, GC-MS and transmission electron microscopy (TEM). The thermogravimetric analysis (TGA) under nitrogen and oxygen environments was also performed to examine the thermal and oxidative stability of ethyl esters produced from wet algae. This simple in situ transesterification process using a green solvent and catalyst-free approach can be a potentially efficient route for algal biodiesel production.
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Affiliation(s)
- Prafulla D Patil
- Chemical Engineering Department, New Mexico State University, Las Cruces, NM 88003, USA
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Vermillion K, Holguin FO, Berhow MA, Richins RD, Redhouse T, O’Connell MA, Posakony J, Mahajan SS, Kelly SM, Simon JA. Dinoxin B, a withanolide from Datura inoxia leaves with specific cytotoxic activities. J Nat Prod 2011; 74:267-271. [PMID: 21280589 PMCID: PMC3057138 DOI: 10.1021/np1004714] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A new withanolide, dinoxin B (12,21-dihydroxy-1-oxowitha-2,5,24-trienolide-27-O-β-D-glucopyranoside, 1), was isolated from a methanol extract of Datura inoxia leaves, using bioassay-guided fractionation. The structure was determined by spectroscopic techniques, including (1)H, (13)C, and 2D NMR experiments as well as by HRMS. Extracts and the purified compound were tested for their antiproliferative activities toward a panel of human normal and cancer cell lines. Dinoxin B (1) and its aglycone (2) exhibited submicromolar IC(50) values against multiple human cancer cell lines. Among the most sensitive were several breast cancer cell lines. Dinoxin B (1) was found only in D. inoxia and was not detected in D. metel or D. stramonium. The accumulation of this compound was limited largely to leaf tissue, with little to none detected in extracts from the flowers, fruits, roots, or stems of D. inoxia.
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Affiliation(s)
- Karl Vermillion
- United States Department of Agriculture, Agricultural Research Service, National Center of Agricultural Utilization Research, Functional Foods Research, 1815 N. University Street, Peoria, Illinois 61604
| | - F. Omar Holguin
- Plant and Environmental Sciences, New Mexico State University, PO Box 30003, Las Cruces, New Mexico 88003-6041
| | - Mark A. Berhow
- United States Department of Agriculture, Agricultural Research Service, National Center of Agricultural Utilization Research, Functional Foods Research, 1815 N. University Street, Peoria, Illinois 61604
| | - Richard D. Richins
- Plant and Environmental Sciences, New Mexico State University, PO Box 30003, Las Cruces, New Mexico 88003-6041
| | - Thurman Redhouse
- Plant and Environmental Sciences, New Mexico State University, PO Box 30003, Las Cruces, New Mexico 88003-6041
| | - Mary A. O’Connell
- Plant and Environmental Sciences, New Mexico State University, PO Box 30003, Las Cruces, New Mexico 88003-6041
| | - Jeff Posakony
- Clinical Research Divisions, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109
| | - Sumit S. Mahajan
- Clinical Research Divisions, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109
| | - Sean M. Kelly
- Clinical Research Divisions, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109
| | - Julian A. Simon
- Clinical Research Divisions, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109
- Human Biology Divisions, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109
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Medina AL, Lucero ME, Holguin FO, Estell RE, Posakony JJ, Simon J, O'Connell MA. Composition and Antimicrobial Activity of Anemopsis californica leaf oil. J Agric Food Chem 2005; 53:8694-8. [PMID: 16248573 DOI: 10.1021/jf0511244] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Isolation and characterization of leaf volatiles in Anemopsis californica (Nutt.) Hook. and Arn. (A. californica) was performed using steam distillation, solid-phase microextraction, and supercritical fluid extraction. Thirty-eight compounds were detected and identified by gas chromatography; elemicin was the major component of the leaf volatiles. While the composition of the leaf volatiles varied with method of extraction, alpha-pinene, sabinene, beta-phellandrene, 1,8-cineole, piperitone, methyl eugenol, (E)-caryophyllene, and elemicin were usually present in readily detectable amounts. Greenhouse-reared clones of a wild population of A. californica had an identical leaf volatile composition with the parent plants. Steam-distilled oil had antimicrobial properties against 3 (Staphylococcus aureus, Streptococcus pneumoniae, and Geotrichim candidum) of 11 microbial species tested. Some of this bioactivity could be accounted for by the alpha-pinene in the oil.
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Affiliation(s)
- Andrea L Medina
- Department of Agronomy and Horticulture, MSC 3Q, and USDA-ARS Jornada Experimental Range, MSC 3JER, New Mexico State University, Las Cruces, NM 88003-8003, USA
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