Multifeature analyses of vascular cambial cells reveal longevity mechanisms in old Ginkgo biloba trees (open access)

Multifeature analyses of vascular cambial cells reveal longevity mechanisms in old Ginkgo biloba trees

This article investigates age-related changes in Ginkgo biloba trees to learn more about the molecular and metabolic mechanisms underlying their longevity. The results revealed that long-lived trees have evolved compensatory mechanisms to maintain a balance between growth and aging processes.
Date: January 13, 2020
Creator: Wang, Li; Cui, Jiawen; Jin, Biao; Zhao, Jiangou; Xu, Huimin; Lu, Zhaogeng et al.
System: The UNT Digital Library
Anisotropic Optical Properties of 2D Silicon Telluride (open access)

Anisotropic Optical Properties of 2D Silicon Telluride

Article reports an ab initio computational study of the optical dielectric properties of Silicon telluride (Si2Te3) using the GW approximation and the Bethe-Salpeter equation (BSE).
Date: September 27, 2020
Creator: Cui, Jingbiao; Bhattarai, Romakanta; Chen, Jiyang; Hoang, Thang B. & Shen, Xiao
System: The UNT Digital Library
Liquid Chromatography Tandem Mass Spectrometry Quantification of ¹³C-Labeling in Sugars (open access)

Liquid Chromatography Tandem Mass Spectrometry Quantification of ¹³C-Labeling in Sugars

This article describes a new methodology for monitoring sucrose labeling using liquid chromatography tandem mass spectrometry (LC-MS/MS). To date, the most commonly used method to monitor sucrose labeling is by nuclear magnetic resonance, which requires substantial amounts of biological sample.
Date: January 10, 2020
Creator: Cocuron, Jean-Christophe; Ross, Zacchary & Alonso, Ana P.
System: The UNT Digital Library
A practical guide for assessing respiratory burst and phagocytic cell activity in the fathead minnow, an emerging model for immunotoxicity (open access)

A practical guide for assessing respiratory burst and phagocytic cell activity in the fathead minnow, an emerging model for immunotoxicity

Article is a study with the goal of optimizing and validating the use of a colorimetric plate-based respiratory burst and fluorometric plate-based phagocytic cell activity assays for use with kidney cells from the fathead minnow (Pimephales promelas), an emerging immunotoxicity model.
Date: July 18, 2020
Creator: Thornton Hampton, Leah M.; Venables, Barney J. & Jeffries, Marlo K. Sellin
System: The UNT Digital Library
Metabolomics as an Emerging Tool for the Study of Plant–Pathogen Interactions (open access)

Metabolomics as an Emerging Tool for the Study of Plant–Pathogen Interactions

Paper discusses metabolomics studies that link changes in primary or specialized metabolism to the defense responses of plants against bacterial, fungal, nematode, and viral pathogens.
Date: January 29, 2020
Creator: Castro-Moretti, Fernanda R.; Gentzel, Irene N.; Mackey, David & Alonso, Ana Paula
System: The UNT Digital Library
Salt-water acclimation of the estuarine crocodile Crocodylus porosus involves enhanced ion transport properties of the urodaeum and rectum (open access)

Salt-water acclimation of the estuarine crocodile Crocodylus porosus involves enhanced ion transport properties of the urodaeum and rectum

This article reports that in addition to the well-documented functional plasticity of the lingual salt glands, the middle of the three cloacal segments (i.e. the urodaeum) responds to increased ambient salinity to enhance solute-coupled water absorption in estuarine crocodiles (Crocodylus porosus).
Date: July 16, 2019
Creator: Grosell, Martin; Heuer, Rachael M.; Wu, N. C.; Cramp, Rebecca L.; Wang, Yadong; Mager, Edward M. et al.
System: The UNT Digital Library
Preferential intracellular pH regulation is a common trait amongst fishes exposed to high environmental CO2 (open access)

Preferential intracellular pH regulation is a common trait amongst fishes exposed to high environmental CO2

Article testing the hypothesis that preferential pHi regulation is a widespread strategy of acid–base regulation among fish by measuring pHi regulation in 10 different fish species that are broadly phylogenetically separated, spanning six orders, eight families and 10 genera.
Date: June 17, 2019
Creator: Shartau, R. B.; Baker, D. W.; Harter, T. S.; Aboagye, D. L.; Allen, P. J.; Val, A. L. et al.
System: The UNT Digital Library
Non-conventional pathways enable pennycress (Thlaspi arvense L.) embryos to achieve high efficiency of oil biosynthesis (open access)

Non-conventional pathways enable pennycress (Thlaspi arvense L.) embryos to achieve high efficiency of oil biosynthesis

Article exploring how to improve oil production in Pennycress (Thlaspi arvense L.).
Date: February 1, 2020
Creator: Cocuron, Jean-Christophe; Alonso, Ana Paula & Tsogtbaatar, Enkhtuul
System: The UNT Digital Library
Remodeling the epigenome and (epi)cytoskeleton: a new paradigm for co-regulation by methylation (open access)

Remodeling the epigenome and (epi)cytoskeleton: a new paradigm for co-regulation by methylation

This article is a commentary on coordinated use of methyl marks to remodel both the epigenome and the (epi)cytoskeleton, which opens the possibility for integrated regulation (referred to as ‘epiregulation’) of other higher-level functions, such as muscle contraction or learning and memory, and could even have evolutionary implications.
Date: July 3, 2020
Creator: Walker, Cheryl & Burggren, Warren W.
System: The UNT Digital Library
Parental transgenerational epigenetic inheritance related to dietary crude oil exposure in Danio rerio (open access)

Parental transgenerational epigenetic inheritance related to dietary crude oil exposure in Danio rerio

Article investigating the transgenerational inheritance from both parental lines in zebrafish. Adult zebrafish were separated into female and male groups exposed for 21 days to either a control diet or to a diet containing water accommodated fractions of crude oil. To determine the maternal and paternal influence on their offspring, the authors evaluated responses from molecular to whole organismal levels in both generations.
Date: January 22, 2020
Creator: Bautista, Naim M.; Crespel, Amélie; Crossley, Janna; Padilla, Pamela A. & Burggren, Warren W.
System: The UNT Digital Library
Climate Metrics for C1–C4 Hydrofluorocarbons (HFCs) (open access)

Climate Metrics for C1–C4 Hydrofluorocarbons (HFCs)

This article looks at hydrofluorocarbons (HFCs) which are potent greenhouse gases that are potential substitutes for ozone depleting substances. The Kigali amendment lists 17 HFCs that are currently in commercial use to be regulated under the Montreal Protocol. Future commercial applications may explore the use of other HFCs, most of which currently lack an evaluation of their climate metrics. In this work, atmospheric lifetimes, radiative efficiencies (REs), global warming potentials (GWPs), and global temperature change potentials (GTPs) for all saturated HFCs with fewer than 5 carbon atoms are estimated to help guide future usage and policy decisions.
Date: May 11, 2020
Creator: Burkholder, James B. (James Bart), 1954-; Marshall, Paul; Bera, Partha P.; Francisco, Joseph S. & Lee, Timothy J.
System: The UNT Digital Library
Sub-Antarctic Freshwater Invertebrate Thermal Tolerances: An Assessment of Critical Thermal Limits and Behavioral Responses (open access)

Sub-Antarctic Freshwater Invertebrate Thermal Tolerances: An Assessment of Critical Thermal Limits and Behavioral Responses

Describes study which assessed the upper (CTmax) and lower (CTmin) thermal limits of three freshwater macroinvertebrate taxa with restricted low elevation distribution (20 m a.s.l.) and three taxa restricted to upper elevations (480 and 700 m a.s.l.) in the Magellanic sub-Antarctic ecoregion of southern Chile, and argues that their low tolerance to temperature increase can make them useful as indicators of thermal alteration in their habitats.
Date: February 4, 2020
Creator: Rendoll Cárcamo, Javier; Contador, Tamara; Convey, Peter & Kennedy, James H.
System: The UNT Digital Library
Underlying Ossification Phenotype in a Murine Model of Metastatic Synovial Sarcoma (open access)

Underlying Ossification Phenotype in a Murine Model of Metastatic Synovial Sarcoma

This article presents the analysis of genetic mouse models of synovial sarcoma to determine the extent of ossification in the tumors and its relationship with morbidity. The authors noted higher ossification within their metastatic mouse model of synovial sarcoma. Their conclusion is that both metastasis and ossification are dependent on time, but that they are independent of one another.
Date: April 10, 2020
Creator: Kirkham, Matthew; Kalivas, Austen; Fatema, Kaniz; Luelling, Sarah; Dubansky, Brooke H.; Dubansky, Benjamin et al.
System: The UNT Digital Library
Comparative Proteomics Analysis Reveals Unique Early Signaling Response of Saccharomyces cerevisiae to Oxidants with Different Mechanism of Action (open access)

Comparative Proteomics Analysis Reveals Unique Early Signaling Response of Saccharomyces cerevisiae to Oxidants with Different Mechanism of Action

This article uses a discovery driven comparative proteomics analysis to reveal unique early signaling response of the yeast Saccharomyces cerevisiae on the proteome level to oxidants with a different mechanism of action as early as 3 min after treatment with four oxidants, namely H₂O₂, cumene hydroperoxide (CHP), and menadione and diamide, when protein abundances were compared using label-free quantification relying on a high-resolution mass analyzer (Orbitrap).
Date: December 26, 2020
Creator: Pandey, Prajita; Zaman, Khadiza; Prókai, László, 1958- & Shulaev, Vladimir
System: The UNT Digital Library
Determining priority areas for an Endangered cold-adapted snake on warming mountaintops (open access)

Determining priority areas for an Endangered cold-adapted snake on warming mountaintops

This article develops a spatial prioritization model based on accurate estimates of remotely-sensed data and maps of threats potentially affecting long-term species persistence to identify priority areas for the conservation of the Endangered Greek meadow viper Vipera graeca, a cold-adapted species inhabiting mountaintops in the Pindos Mountains of Greece and Albania.
Date: March 12, 2020
Creator: Mizsei, Edvárd; Szabolcs, Márton; Szabó, Loránd; Boros, Zoltán; Mersini, Kujtim; Roussos, Stephanos Antonios et al.
System: The UNT Digital Library
ALMA Observations of Quasar Host Galaxies at z ≃ 4.8 (open access)

ALMA Observations of Quasar Host Galaxies at z ≃ 4.8

Article presents ALMA Band 7 data of the [C ıı] 𝜆157.74 𝜇m emission line and underlying far-IR (FIR) continuum for 12 luminous quasars at 𝓏 ≃ 4.8 powered by fast-growing supermassive black holes (SMBHs).
Date: May 27, 2020
Creator: Shemmer, Ohad; Nguyen, Nathen H.; Lira, Paulina; Trakhtenbrot, Benny; Netzer, Hagai; Cicone, Claudia et al.
System: The UNT Digital Library
Workflow for the Quantification of Soluble and Insoluble Carbohydrates in Soybean Seed (open access)

Workflow for the Quantification of Soluble and Insoluble Carbohydrates in Soybean Seed

This article develops and validates a sequential protocol for quantifying reserve and structural carbohydrates in soybean seed. It was successfully applied to eight soybean genotypes harvested from two locations, and the resulting correlations of carbohydrate and oil or protein are presented. This methodology has the potential not only to guide soybean cultivar optimization processes but also to be expanded to other crops with only slight modifications.
Date: July 30, 2020
Creator: Moretti, Ademar; Arias, Cintia L.; Mozzoni, Leandro A.; Chen, Pengyin; McNeece, Brant T.; Mian, M. A. Rouf et al.
System: The UNT Digital Library
Heterogeneous Distribution of Erucic Acid in Brassica napus Seeds (open access)

Heterogeneous Distribution of Erucic Acid in Brassica napus Seeds

Article describes study examining low- and high-erucic acid accessions of B. napus seeds for the distribution of erucic acid-containing lipids and the gene transcripts encoding the enzymes involved in pathways for its incorporation into triacylglycerols (TAGs) across the major tissues of the seeds.
Date: January 29, 2020
Creator: Lu, Shaoping; Aziz, Mina; Sturtevant, Drew; Chapman, Kent Dean & Guo, Liang
System: The UNT Digital Library
Covalency in Fe2O3 and FeO: Consequences for XPS satellite intensity (open access)

Covalency in Fe2O3 and FeO: Consequences for XPS satellite intensity

Article examines the covalent character of the interaction between the metal cation and the oxygen ligands for two Fe oxides with different nominal oxidation states, Fe(II)O, and Fe(III)₂O₃.
Date: November 17, 2020
Creator: Bagus, Paul S.; Nelin, Connie J.; Brundle, C. R.; Crist, B. Vincent; Lahiri, N. & Rosso, Kevin M.
System: The UNT Digital Library
Plasma modification of vanadium oxynitride surfaces: Characterization by in situ XPS experiments and DFT calculations (open access)

Plasma modification of vanadium oxynitride surfaces: Characterization by in situ XPS experiments and DFT calculations

Article reports XPS and DFT findings regarding the O₂ plasma, NH₃ plasma, and NH₃+O₂ plasma treatment of sputter deposited vanadium oxynitride films.
Date: October 13, 2020
Creator: Osonkie, A.; Lee, V.; Chukwunenye, P.; Cundari, Thomas R., 1964- & Kelber, Jeffry A.
System: The UNT Digital Library
On the standard L-function for GSp2n × GL1 and algebraicity of symmetric fourth L-values for GL2 (open access)

On the standard L-function for GSp2n × GL1 and algebraicity of symmetric fourth L-values for GL2

This article proves an explicit integral representation—involving the pullback of a suitable Siegel Eisenstein series—for the twisted standard L-function associated to a holomorphic vector-valued Siegel cusp form of degree n and arbitrary level.
Date: May 6, 2020
Creator: Pitale, Ameya; Saha, Abhishek & Schmidt, Ralf
System: The UNT Digital Library
Deep Minima in the Triply Differential Cross Section for Ionization of Atomic Hydrogen by Electron and Positron Impact (open access)

Deep Minima in the Triply Differential Cross Section for Ionization of Atomic Hydrogen by Electron and Positron Impact

Article investigating ionization of atomic hydrogen by electron- and positron-impact. This article belongs to the Special Issue: Interactions of Positrons with Matter and Radiation.
Date: May 29, 2020
Creator: DeMars, C. M.; Ward, S. J.; Colgan, J.; Amami, S. & Madison, D. H.
System: The UNT Digital Library
Chemical and Genetic Studies on the Formation of Pyrrolones During the Biosynthesis of Cytochalasans (open access)

Chemical and Genetic Studies on the Formation of Pyrrolones During the Biosynthesis of Cytochalasans

This article investigates the role of the highly conserved α,β-hydrolase enzymes PyiE and ORFZ during the biosynthesis of pyrichalasin H and the ACE1 metabolite, respectively, using gene knockout and complementation techniques. Taken together the results suggest that the α,β-hydrolase enzymes are essential for first ring cyclisation, but the precise nature of the intermediates remains to be determined.
Date: November 4, 2020
Creator: Zhang, Haili; Hantke, Verena; Bruhnke, Pia; Skellam, Elizabeth & Cox, Russell J.
System: The UNT Digital Library
Long-range nonspreading propagation of sound beam through periodic layered structure (open access)

Long-range nonspreading propagation of sound beam through periodic layered structure

Article analyzing dispersion of sound in a solid-fluid layered structure and found a flex point on the isofrequency curve where D vanishes for given direction of propagation and frequency. Nonspreading propagation is experimentally observed in a water steel lattice of 75 periods (~1 meter long) and occurs in the regime of anomalous dispersion and strong acoustic anisotropy when the effective mass along periodicity is close to zero. Under these conditions the incoming beam experiences negative refraction of phase velocity leading to backward wave propagation. The observed effect is explained using a complete set of dynamical equations and our effective medium theory.
Date: September 2, 2020
Creator: Zubov, Yurii; Djafari-Rouhani, Bahram; Jin, Yuqi; Sofield, Mathew; Walker, Ezekiel; Neogi, Arup et al.
System: The UNT Digital Library