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Substrate Specificity of LACCASE8 Facilitates Polymerization of Caffeyl Alcohol for C-Lignin Biosynthesis in the Seed Coat of Cleome hassleriana (open access)

Substrate Specificity of LACCASE8 Facilitates Polymerization of Caffeyl Alcohol for C-Lignin Biosynthesis in the Seed Coat of Cleome hassleriana

This article finds that the transcript profile of the laccase gene ChLAC8 parallels the accumulation of C-lignin during seed coat development. Recombinant ChLAC8 oxidizes caffeyl and sinapyl alcohols, generating their corresponding dimers or trimers in vitro, but cannot oxidize coniferyl alcohol. The authors propose a basis for this substrate preference based on molecular modeling/docking experiments. Suppression of ChLAC8 expression led to significantly reduced C-lignin content in the seed coats of transgenic Cleome plants. Feeding of 13C-caffeyl alcohol to the Arabidopsis (Arabidopsis thaliana) caffeic acid o-methyltransferase mutant resulted in no incorporation of 13C into C-lignin, but expressing ChLAC8 in this genetic background led to appearance of C-lignin with >40% label incorporation. These results indicate that ChLAC8 is required for C-lignin polymerization and determines lignin composition when caffeyl alcohol is available.
Date: October 9, 2020
Creator: Wang, Xin; Zhuo, Chunliu; Xiao, Xirong; Wang, Xiaoqiang; Docampo-Palacios, Maite; Chen, Fang et al.
Object Type: Article
System: The UNT Digital Library
Cellular Plasticity in Response to Suppression of Storage Proteins in the Brassica napus Embryo (open access)

Cellular Plasticity in Response to Suppression of Storage Proteins in the Brassica napus Embryo

Article testing the tradeoff between protein and oil storage in oilseed crops by analyzing the effect of suppressing key genes encoding protein storage products (napin and cruciferin). This study provides mechanistic insights into the intriguing link between lipid and protein storage, which have implications for biotechnological strategies directed at improving oilseed crops.
Date: April 30, 2020
Creator: Rolletschek, Hardy; Schwender, Jorg; König, Christina; Chapman, Kent Dean; Romsdahl, Trevor; Lorenz, Christin et al.
Object Type: Article
System: The UNT Digital Library
Seedling Chloroplast Responses Induced by N-Linolenoylethanolamine Require Intact G-Protein Complexes (open access)

Seedling Chloroplast Responses Induced by N-Linolenoylethanolamine Require Intact G-Protein Complexes

This article shows that the activity of N-linolenoylethanolamine (NAE 18:3) requires an intact G-protein complex. Specifically, genetic ablation of the Gβγ dimer or loss of the full set of atypical Gα subunits strongly attenuates an NAE-18:3–induced degreening of cotyledons in Arabidopsis (Arabidopsis thaliana) seedlings. This effect involves, at least in part, transcriptional regulation of chlorophyll biosynthesis and catabolism genes. In addition, there is feedforward transcriptional control of G-protein signaling components and G-protein interactors. These results are consistent with NAE 18:3 being a lipid signaling molecule in plants with a requirement for G-proteins to mediate signal transduction, a situation similar, but not identical, to the action of NAE endocannabinoids in animal systems.
Date: July 14, 2020
Creator: Yan, Chengshi; Cannon, Ashley E.; Watkins, Justin; Keereetaweep, Jantana; Khan, Bibi Rafeiza; Jones, Alan M. et al.
Object Type: Article
System: The UNT Digital Library
MYB30 Orchestrates Systemic Reactive Oxygen Signaling and Plant Acclimation (open access)

MYB30 Orchestrates Systemic Reactive Oxygen Signaling and Plant Acclimation

This article explores the relationship among MYB30, the ROS wave, and systemic acclimation in Arabidopsis by determining the SAA response to HL stress of MYB30 mutants and wild-type plants.
Date: July 22, 2020
Creator: Fichman, Yosef; Zandalinas, Sara I.; Sengupta, Soham; Burks, David J.; Meyers, Ronald J., Jr.; Azad, Rajeev K. et al.
Object Type: Article
System: The UNT Digital Library
Efficient separation of xylene isomers by a guest-responsive metal–organic framework with rotational anionic sites (open access)

Efficient separation of xylene isomers by a guest-responsive metal–organic framework with rotational anionic sites

Article demonstrating the adaptively molecular discrimination of xylene isomers by employing a NbOF52−-pillared metal–organic framework (NbOFFIVE-bpy-Ni, also referred to as ZU-61) with rotational anionic sites.
Date: October 28, 2020
Creator: Cui, Xili; Niu, Zheng; Shan, Chuan; Yang, Lifeng; Hu, Jianbo; Wang, Qingju et al.
Object Type: Article
System: The UNT Digital Library
RNaseH-mediated simultaneous piggyback knockdown of multiple genes in adult zebrafish (open access)

RNaseH-mediated simultaneous piggyback knockdown of multiple genes in adult zebrafish

This article tests if it is possible to piggyback more than one antisense deoxyoligonucleotide (dO) with one vivo morpholino (VMO). The authors previously developed a piggyback knockdown method that was used to knockdown genes in adult zebrafish. In this article, the authors develop a method to knockdown three genes at one time, and by increasing the concentration of VMO by twofold, could knockdown six genes simultaneously. These multiple gene knockdowns will not only increase the efficiency of the method in whole genome-wide knockdowns but will also be useful to study multifactorial disorders.
Date: November 19, 2020
Creator: Raman, Revathi; Ryon, Mia & Jagadeeswaran, Pudur
Object Type: Article
System: The UNT Digital Library
Grand canonical simulations of electrochemical interfaces in implicit solvation models (open access)

Grand canonical simulations of electrochemical interfaces in implicit solvation models

Article discussing grand canonical simulations based on density-functional theory to study the thermodynamic properties of electrochemical interfaces of metallic electrodes in aqueous environments.
Date: August 31, 2018
Creator: Hörmann, Nicolas; Andreussi, Oliviero & Marzari, Nicola
Object Type: Article
System: The UNT Digital Library
Universality in a one-dimensional three-body system (open access)

Universality in a one-dimensional three-body system

Article studying a heavy-heavy-light three-body system confined to one space dimension.
Date: July 24, 2019
Creator: Happ, Lucas; Zimmermann, Matthias; Betelu, Santiago I.; Schleich, Wolfgang P. & Efremov, Maxim A.
Object Type: Article
System: The UNT Digital Library
Lattice quantum magnetometry (open access)

Lattice quantum magnetometry

Article presenting the idea of lattice quantum magnetometry, i.e., quantum sensing of magnetic fields by a charged (spinless) particle placed on a finite two-dimensional lattice.
Date: June 24, 2019
Creator: Razzoli, Luca; Ghirardi, Luca; Siloi, Ilaria; Bordone, Paolo & Paris, Matteo G. A.
Object Type: Article
System: The UNT Digital Library
Edge-plasmon assisted electro-optical modulator (open access)

Edge-plasmon assisted electro-optical modulator

Article demonstrates an efficient electro-optical modulation by using an edge-plasmon mode specific for the hybrid plasmonic waveguide.
Date: November 26, 2019
Creator: Drachev, Vladimir P.; Pshenichnyuk, Ivan A.; Nazarikov, Gleb I.; Kosolobov, Sergey S. & Maimistov, Andrei I.
Object Type: Article
System: The UNT Digital Library
AFLOW-QHA3P: Robust and automated method to compute thermodynamic properties of solids (open access)

AFLOW-QHA3P: Robust and automated method to compute thermodynamic properties of solids

Article introducing the quasiharmonic approximation three-phonon method to calculate the thermodynamic properties of both nonmetallic and metallic compounds. This study demonstrates that QHA3P is an ideal framework for the high-throughput prediction of finite-temperature material properties, combining the accuracy of QHA with the computational efficiency of SC-QHA.
Date: July 8, 2019
Creator: Nath, Pinku; Usanmaz, Demet; Hicks, David; Oses, Corey; Fornari, Marco; Buongiorno Nardelli, Marco et al.
Object Type: Article
System: The UNT Digital Library
VvLAR1 and VvLAR2 Are Bifunctional Enzymes for Proanthocyanidin Biosynthesis in Grapevine (open access)

VvLAR1 and VvLAR2 Are Bifunctional Enzymes for Proanthocyanidin Biosynthesis in Grapevine

This article shows that both Cys-EC and 4β-(S-cysteinyl)-catechin (Cys-C) are present in grapevine. The data from this study advance knowledge of PA building blocks and LAR function and provide targets for grapevine breeding to alter PA composition.
Date: May 15, 2019
Creator: Dixon, R. A.; Jun, Ji Hyung; Yu, Keji & Duan, Changqing
Object Type: Article
System: The UNT Digital Library
LBD29-Involved Auxin Signaling Represses NAC Master Regulators and Fiber Wall Biosynthesis (open access)

LBD29-Involved Auxin Signaling Represses NAC Master Regulators and Fiber Wall Biosynthesis

This article uses a large-scale mutant screening to identify a dominant activation-tagging mutant, fiberless-d (fls-d), showing defective SCW development in stem fibers, similar to that of the nac secondary wall thickening promoting factor1-1 (nst1-1)nst3-3 double mutant. The results demonstrate auxin is upstream of LBD29 in repressing NAC master regulators, and therefore sheds new light on the regulation of SCW biosynthesis in Arabidopsis.
Date: August 3, 2019
Creator: Lee, Kwang-Hee; Du, Qian; Zhuo, Chunliu; Qi, Liying & Wang, Huanzhong
Object Type: Article
System: The UNT Digital Library
Jasmonic Acid Is Required for Plant Acclimation to a Combination of High Light and Heat Stress (open access)

Jasmonic Acid Is Required for Plant Acclimation to a Combination of High Light and Heat Stress

Article studying the responses of Arabidopsis (Arabidopsis thaliana) plants to a combination of high light and heat stress (HL+HS) conditions. The study reveals that Jasmonic acid (JA) plays an important role in the acclimation of plants to a combination of HL+HS.
Date: October 8, 2019
Creator: Sengupta, Soham; Azad, Rajeev K.; Balfagón, Damián; Gómez-Cadenas, Aurelio; Fritschi, Felix B.; Mittler, Ron et al.
Object Type: Article
System: The UNT Digital Library
First record of horned puffin in the North Atlantic and tufted puffin in High Arctic Greenland (open access)

First record of horned puffin in the North Atlantic and tufted puffin in High Arctic Greenland

Article reports observations of two Subarctic North Pacific puffin species in the North Atlantic near the coast of north-west Greenland.
Date: June 26, 2020
Creator: Johnson, Jeff A.; Burnham, Kurt K.; Burnham, Jennifer L.; Konkel, Bridger W.; Stephens, Jack & Badgett, Hannah
Object Type: Article
System: The UNT Digital Library
Metallic nanoparticle production and exposure/deposition system for toxicological research applications using zebrafish (open access)

Metallic nanoparticle production and exposure/deposition system for toxicological research applications using zebrafish

Article presents a method that provides a novel way to synthesize NPs and expose biological organisms for various toxicological analysis.
Date: September 3, 2020
Creator: Nayek, Subhayu; Aguilar, Roberto; Juel, Lauren A. & Verbeck, Guido F.
Object Type: Article
System: The UNT Digital Library
Genomic diversity of bacteriophages infecting Microbacterium spp (open access)

Genomic diversity of bacteriophages infecting Microbacterium spp

Article describing the isolation and genomic characterization of 116 phages that infect Microbacterium spp.
Date: June 18, 2020
Creator: Hughes, Lee E.; Jacobs-Sera, Deborah; Abad, Lawrence A.; Alvey, Richard M.; Anders, Kirk R.; Aull, Haley G. et al.
Object Type: Article
System: The UNT Digital Library
Role of quantum confinement and interlayer coupling in CrI3-graphene magnetic tunnel junctions (open access)

Role of quantum confinement and interlayer coupling in CrI3-graphene magnetic tunnel junctions

Article presents a combination of first principles and quantum ballistic transport calculations to shed important insights from an atomistic viewpoint on the underlying mechanisms governing spin transport in graphene/ CrI₃ junctions.
Date: May 29, 2020
Creator: Buongiorno Nardelli, Marco; Heath, Jonathan J.; Costa, Marcio & Kuroda, Marcelo A.
Object Type: Article
System: The UNT Digital Library
Prostasin and hepatocyte growth factor B in factor VIIa generation: Serine protease knockdowns in zebrafish (open access)

Prostasin and hepatocyte growth factor B in factor VIIa generation: Serine protease knockdowns in zebrafish

Article aims to identify other proteases that may activate FVII using zebrafish as a model.
Date: September 22, 2020
Creator: Khandekar, Gauri; Iyer, Neha & Jagadeeswaran, Pudur
Object Type: Article
System: The UNT Digital Library
A Statistical Analysis of Trans-Resveratrol in Grape Cane From Ten Varieties of Cultivated Wine Grapes (Vitis Spp.) (open access)

A Statistical Analysis of Trans-Resveratrol in Grape Cane From Ten Varieties of Cultivated Wine Grapes (Vitis Spp.)

This article isolated resveratrol by a non-optimized protocol from ten varieties of grape cane grown in central Texas, USA. A statistical grouping of the ten varieties suggests that Norton, Blanca du bois, Cabernet Sauvignon, and Lenoir are the best candidates to use for further resveratrol isolation.
Date: August 22, 2020
Creator: Rathburn, Harold; Bell, Peter; Cook, Scott; Mayberry, Darrell D.; Geye, Emryse & Goodrich, Ryann
Object Type: Article
System: The UNT Digital Library
In vitro anti-diabetic effects and phytochemical profiling of novel varieties of Cinnamomum zeylanicum (L.) extracts (open access)

In vitro anti-diabetic effects and phytochemical profiling of novel varieties of Cinnamomum zeylanicum (L.) extracts

Article exploring the use of pressured and decoctions water to extract anti-diabetic phytochemicals from cinnamon. The extensive metabolite profiling of novel SW and SG extracts and comparison of that with commercially available CC are reported for the first time in this study. The C. zeylanicum, SW accession holds some promise in the management of diabetes.
Date: April 27, 2020
Creator: Wariyapperuma, W.A. Niroshani M.; Kannangara, Sagarika; Wijayasinghe, Yasanandana S.; Subramanium, Sri & Jayawardena, Bimali
Object Type: Article
System: The UNT Digital Library
Protein Determination with Molecularly Imprinted Polymer Recognition Combined with Birefringence Liquid Crystal Detection (open access)

Protein Determination with Molecularly Imprinted Polymer Recognition Combined with Birefringence Liquid Crystal Detection

Article integrating a molecularly imprinted polymer (MIP) film recognition unit with a liquid crystal (LC) in an optical cell transducer to incur the selectivity of liquid crystal-based sensors.
Date: August 20, 2020
Creator: Cieplak, Maciej; Węgłowski, Rafał; Iskierko, Z.; Węgłowska, Dorota; Sharma, Piyush S.; Noworyta, Krzysztof R. et al.
Object Type: Article
System: The UNT Digital Library
Nematic order on a deformable vesicle with anchoring effects (open access)

Nematic order on a deformable vesicle with anchoring effects

This article proposes a new model to represent a vesicle membrane with internal nematic order whose equilibrium states depend on the competition between the bending, elastic and anchoring energies.
Date: July 7, 2020
Creator: Tierra Chica, Giordano; Guillén-González, Francisco & Rodríguez-Bellido, María Ángeles
Object Type: Article
System: The UNT Digital Library
Relating size and functionality in human social networks through complexity (open access)

Relating size and functionality in human social networks through complexity

Article argues that the Dunbar number arises as a consequence of a natural phase transition in the dynamic self-organization among N individuals within a social system. The authors provide a theoretical basis for the value of the Dunbar number and establish a theory-based bridge spanning the gap between sociology and psychology.
Date: July 20, 2020
Creator: Massari, Giovanni F.; Culbreth, Garland; Failla, Roberto; Grigolini, Paolo; West, Bruce J. & Bologna, Mauro
Object Type: Article
System: The UNT Digital Library