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Structural Modeling and in planta Complementation Studies Link Mutated Residues of the Medicago truncatula Nitrate Transporter NPF1.7 to Functionality in Root Nodules
This article combines in silico structural predictions with in planta complementation of the severely defective mtnip-1 mutant plants to understand the role of a series of distinct amino acids in the transporter’s function. The findings add to the knowledge of the mechanism of alternative conformational changes as well as symport transport in NPFs and enhance knowledge of the mechanisms for nitrate signaling.
Date:
July 1, 2021
Creator:
Yu, Yao-Chuan; Dickstein, Rebecca & Longo, Antonella
System:
The UNT Digital Library
The Long-Term Effects of Developmental Hypoxia on Cardiac Mitochondrial Function in Snapping Turtles
This article investigates the long-term effects of developmental hypoxia on mitochondrial function in a species that regularly encounters hypoxia during development. Findings speculate that adjustments might improve mitochondrial hypoxia tolerance, which would be beneficial for turtles during breath-hold diving and overwintering in anoxic environments.
Date:
June 28, 2021
Creator:
Galli, Gina L. J.; Ruhr, Ilan M.; Crossley, Janna & Crossley, Dane A., II
System:
The UNT Digital Library
Approaching Bounded Rationality: From Quantum Probability to Criticality
This article discusses the decision-making model (DMM), a paradigmatic instance of criticality, which deals with bounded rationality issues in a similar way as quantum probability (QP), generating choices that cannot be accounted by classical probability (CP). This work may contribute to considering criticality as another possible fundamental pillar in order to improve the understanding of cognition and of quantum mechanics.
Date:
June 13, 2021
Creator:
Tonello, Lucio & Grigolini, Paolo
System:
The UNT Digital Library
Early Oxidative Transformations During the Biosynthesis of Terrein and Related Natural Products
This article combines heterologous expression and in vitro studies to show that the flavin-dependent monooxygenase (FMO) TerC catalyzes the initial oxidative decarboxylation of 6-HM. The results demonstrate that the biosynthetic pathways of terrein and related(polychlorinated) congeners diverge after oxidative decarboxylation of the lactone precursor that is catalyzed by a conserved FMO and further indicate that early dehydration of the side chain is an essential step.
Date:
June 11, 2021
Creator:
Kahlert, Lukas; Bernardi, Darlon; Hauser, Maurice; Lóca, Laura P.; Berlinck, Roberto G. S.; Skellam, Elizabeth et al.
System:
The UNT Digital Library
Developmental Physiology: Grand Challenges
Article indicating directions in which the field of Developmental Physiology might move. It suggests three categories of challenges: demonstrating broad relevance, promoting conceptual advances, and improving experimental approaches.
Date:
June 10, 2021
Creator:
Burggren, Warren W.
System:
The UNT Digital Library
Evidence of Endozoochory in Upland Geese Chloephaga picta and White-Bellied Seedsnipes Attagis malouinus in Sub-Antarctic Chile
This article evaluates the role of endozoochory in herbivorous and sympatric bird species in sub-Antarctic Chile. The authors hypothesize that fragments of bryophyte gametophytes retrieved from their feces are viable and capable of regenerating new plant tissue. This relationship may have important implications in the way bryophytes disperse and colonize habitats facing climate change.
Date:
June 10, 2021
Creator:
Lázaro, Xenabeth A.; Mackenzie, Roy & Jiménez, Jaime E.
System:
The UNT Digital Library
Self-reporting molecularly imprinted polymer with the covalently immobilized ferrocene redox probe for selective electrochemical sensing of p-synephrine
Article simultaneously imprinting the p-synephrine 1 template and covalently immobilizing a a ferrocene redox probe in a (bis-bithiophene)-based polymer. The resulting molecularly imprinted polymer (MIP) was deposited on the Pt electrode as a thin film to form a redox self-reporting MIP film-based chemosensor.
Date:
June 10, 2021
Creator:
Lach, Patrycja; Cieplak, Maciej; Noworyta, Krzysztof R.; Pieta, Piotr; Lisowski, Wojciech; Kalecki, Jakub et al.
System:
The UNT Digital Library
Self-reporting molecularly imprinted polymer with the covalently immobilized ferrocene redox probe for selective electrochemical sensing of p-synephrine
This article uses a molecularly imprinted polymer (MIP) to form a redox self-reporting MIP film-based chemosensor applied for p-synephrine determination.
Date:
June 10, 2021
Creator:
Lach, Patrycja; Cieplak, Maciej; Noworyta, K.; Pieta, Piotr; Lisowski, Wojciech; Kalecki, Jakub et al.
System:
The UNT Digital Library
LDIP cooperates with SEIPIN and LDAP to facilitate lipid droplet biogenesis in Arabidopsis
Article showing that a recently identified protein termed LD-associated protein [LDAP]-interacting protein (LDIP) works together with both endoplasmic reticulum-localized SEIPIN and the LD-coat protein LDAP to facilitate LD formation in Arabidopsis thaliana. The data is discussed in the context of a new model for LD biogenesis in plant cells with evolutionary connections to LD biogenesis in other eukaryotes.
Date:
June 9, 2021
Creator:
Pyc, Michal; Gidda, Satinder K.; Seay, Damien C.; Esnay, Nicolas; Kretzschmar, Franziska K.; Cai, Yingqi et al.
System:
The UNT Digital Library
Thermal instability and multiphase gas in the simulated interstellar medium with conduction, viscosity, and magnetic fields
This article uses 2D simulations to investigate thermal instability under the influence of various initial conditions and physical processes.
Date:
June 7, 2021
Creator:
Jennings, R. Michael & Li, Yuan
System:
The UNT Digital Library
Elucidating the multifunctional role of the cell wall components in the maize exploitation
Article on the composition of the four cell wall fractions in diverse maize genotypes and to understand how this composition influences the resistance to pests, ethanol capacity and digestibility. Results evidence that there is no maize cell wall ideotype among the tested for optimal performance for various uses, and maize plants should be specifically bred for each particular application.
Date:
June 2, 2021
Creator:
López-Malvar, Ana; Malvar, Rosa Ana; Souto, Xose Carlos; Gomez, Leonardo Dario; Simister, Rachael; Encina, Antonio et al.
System:
The UNT Digital Library
Migratory movements of Atlantic puffins Fratercula arctica naumanni from high Arctic Greenland
This article is the first to present data on the migratory movements of the “large-billed” subspecies, F. a. naumanni, that breeds in the high Arctic and which has significantly larger body size than those farther south.
Date:
May 28, 2021
Creator:
Burnham, Kurt K.; Burnham, Jennifer L.; Johnson, Jeff A. & Huffman, Abby
System:
The UNT Digital Library
Chandra and Magellan/FIRE follow-up observations of PSO167–13: An X-ray weak QSO at z = 6.515
This article presents the results of follow-up observations of the z = 6.515 radio-quiet QSO PSO167–13, which is interacting with a close companion galaxy with the goal to confirm the existence of the X-ray source and to investigate the rest-frame UV properties of the QSO. The authors observed the PSO167–13 system with Chandra/ACIS-S (177 ks) and obtained new spectroscopic observations (7.2 h) with Magellan/FIRE.
Date:
May 27, 2021
Creator:
Vito, F.; Brandt, William Nielsen; Ricci, F.; Congui, E.; Connor, T.; Bañados, E. et al.
System:
The UNT Digital Library
Dual activity of anthocyanidin reductase supports the dominant plant proanthocyanidin extension unit pathway
This article presents research on genetic and biochemical analyses that shows ANR has dual activity and is involved not only in the production of (−)-epicatechin starter units but also in the formation of 2,3-cis-leucocyanidin to serve as (−)-epicatechin extension units. The results find that differences in the product specificities of ANRs account for the presence/absence of PA polymerization and the compositions of PAs across plant species
Date:
May 14, 2021
Creator:
Jun, Ji Hyung; Lu, Nan; Docampo-Palacios, Maite; Wang, Xiaoqiang & Dixon, R. A.
System:
The UNT Digital Library
Biosynthesis of 6-Hydroxymellein Requires a Collaborating Polyketide Synthase-like Enzyme
This article investigates a new architecture for iterative Type I polyketide synthases (PKS) from fungi.
Date:
May 10, 2021
Creator:
Kahlert, Lukas; Villanueva, Miranda; Cox, Russell J. & Skellam, Elizabeth
System:
The UNT Digital Library
Do gene-environment interactions play a role in COVID-19 distribution? The case of Alpha-1 Antitrypsin, air pollution and COVID-19
This article evaluates the role that gene-environment interaction between air-pollution and Alpha-1 Antitrypsin (AAT) genes plays in the severity of COVID-19. Results find parallelism between the number of COVID deaths and the AAT*air pollution global risk in Europe.
Date:
May 7, 2021
Creator:
Murgia, Nicola; Corsico, Angelo Guido; D'Amato, Gennaro; Maesano, Cara Nichole; Tozzi, Arturo & Annesi-Maesano, Isabella
System:
The UNT Digital Library
Ultrafast dephasing in hydrogen-bonded pyridine–water mixtures
Article studying Hydrogen-bonded pyridine–water mixtures by a time-frequency resolved coherent Raman spectroscopic technique.
Date:
May 4, 2021
Creator:
Ariunbold, Gombojav O.; Semon, Bryan; Nagpal, Supriya & Rostovtsev, Yuri V.
System:
The UNT Digital Library
Evaluation of nine condensed-phase force fields of the GROMOS, CHARMM, OPLS, AMBER, and OpenFF families against experimental cross-solvation free energies
This article builds on a previous study [Kashefolgheta et al., J. Chem. Theory. Comput., 2020, 16, 7556–7580] by extending the comparison to five additional force fields, GROMOS-54A7, GROMOS-ATB, OPLS-LBCC, AMBER-GAFF2, and OpenFF.
Date:
April 30, 2021
Creator:
Kashefolgheta, Sadra; Wang, Shuzhe; Acree, William E. (William Eugene) & Hünenberger, Philippe H.
System:
The UNT Digital Library
Biophotons-and-emergence-of-quantum-coherencea-diffusion-entropy-analysisEntropy
This article studies the emission of photons from germinating seeds using an experimental technique designed to detect light of extremely small intensity. It analyzes the dark count signal without germinating seeds as well as the photon emission during the germination process.
Date:
April 29, 2021
Creator:
Benfatto, Maurizio; Pace, Elisabetta; Curceanu, Catalina; Scordo, Alessandro; Clozza, Alberto; Davoli, Ivan et al.
System:
The UNT Digital Library
CRISPR/Cas9-Induced fad2 and rod1 Mutations Stacked With fae1 Confer High Oleic Acid Seed Oil in Pennycress (Thlaspi arvense L.)
Article utilizing Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)/Cas9 technology to produce knockout mutations in the FATTY ACID DESATURASE2 (FAD2) and REDUCED OLEATE DESATURATION1 (ROD1) genes to increase oleic acid content in Pennycress (Thlaspi arvense L.). Results suggest that combinatorial knockout of ROD1 and FAE1 may be a viable route to commercially increase oleic acid content in pennycress seed oil whereas mutations in FAD2 will likely require at least partial function to avoid fitness trade-offs.
Date:
April 22, 2021
Creator:
Jarvis, Brice A.; Romsdahl, Trevor B.; McGinn, Michaela G.; Nazarenus, Tara J.; Cahoon, Edgar B.; Chapman, Kent Dean et al.
System:
The UNT Digital Library
Oxygen atom transfer catalysis by dioxidomolybdenum(VI) complexes of pyridyl aminophenolate ligands
This article synthesizes and characterizes a series of new cationic dioxidomolybdenum(VI) complexes [MoO₂(Lⁿ)]PF₆ (2–5) with the tripodal tetradentate pyridyl aminophenolate ligands HL²-HL⁵.
Date:
April 21, 2021
Creator:
Hossain, Kamal; Schachner, Jörg A.; Haukka, Matti; Richmond, Michael G.; Mösch-Zanetti, Nadia C.; Lehtonen, Ari et al.
System:
The UNT Digital Library
Proton reduction by phosphinidene-capped triiron clusters
This article prepares and examines Bis(phosphinidene)-capped triiron carbonyl clusters, including electron rich derivatives formed by substitution with chelating diphosphines as proton reduction catalysts.
Date:
April 20, 2021
Creator:
Rahaman, Ahibur; Lisensky, George C.; Haukka, Matti; Tocher, Derek A.; Richmond, Michael G.; Colbran, Stephen B. et al.
System:
The UNT Digital Library
Spatial and temporal localization of SPIRRIG and WAVE/SCAR reveal roles for these proteins in actin-mediated root hair development
Article shows that SPIRRIG (SPI), a beige and Chediak Higashi domain-containing protein involved in membrane trafficking, and BRK1 and SCAR2, subunits of the WAVE/SCAR (W/SC) actin nucleating promoting complex, display polarized localizations in Arabidopsis thaliana root hairs during distinct developmental stages. Authors' work uncovers a role for SPI in facilitating actin-dependent root hair development in Arabidopsis through pathways that might intersect with W/SC.
Date:
April 20, 2021
Creator:
Chin, Sabrina; Kwon, Taegun; Khan, Bibi Rafeiza; Sparks, J. Alan; Mallery, Eileen L.; Szymanski, Daniel B. et al.
System:
The UNT Digital Library
Childhood Asthma and Smoking: Moderating Effect of Preterm Status and Birth Weight
Article exploring the association between second-hand smoke exposure, asthma, and asthma severity in children ages 6-17 as well as the effect of birth weight and prematurity (BWP) on parental smoking and asthma. Results indicate that focused asthma interventions in children should inquire about BWP status as well as parental smoking and household smoke exposure to reduce asthma morbidity and mortality.
Date:
April 17, 2021
Creator:
Ogbu, Chukwuemeka E.; Ogbu, Stella C.; Khadka, Dibya & Kirby, Russell S.
System:
The UNT Digital Library