Effects of chronic exposure to 12‰ saltwater on the endocrine physiology of juvenile American alligator (Alligator mississippiensis) (open access)

Effects of chronic exposure to 12‰ saltwater on the endocrine physiology of juvenile American alligator (Alligator mississippiensis)

Article describes experiment in which juvenile alligators were exposed to 12‰ saltwater for 5 weeks to determine the effects of chronic exposure to saline environments.
Date: July 30, 2018
Creator: Faulkner, P. C.; Burleson, Mark L.; Simonitis, L.; Marshall, C.D.; Hala, D. & Petersen, L. H.
Object Type: Article
System: The UNT Digital Library
Rapid embryonic accretion of docosahexaenoic acid (DHA) in the brain of an altricial bird with an aquatic-based maternal diet (open access)

Rapid embryonic accretion of docosahexaenoic acid (DHA) in the brain of an altricial bird with an aquatic-based maternal diet

This article communicates the results of a study conducted on red-winged blackbirds where brain phospholipid composition during development was measured and diet was manipulated. The dietary study confirmed that nestling brains are sensitive to fatty acid supply. The findings of this article suggest that Red-winged blackbirds may be able to advance cognitive development relative to other altricial species owing to their aquatic maternal diet.
Date: July 23, 2018
Creator: Price, Edwin R.; Sirsat, Sarah K. G.; Sirsat, Tushar S.; Venables, Barney J. & Dzialowski, Edward M. (Edward Michael)
Object Type: Article
System: The UNT Digital Library
Constraints-based stoichiometric analysis of hypoxic stress on steroidogenesis in fathead minnows, Pimephales promelas (open access)

Constraints-based stoichiometric analysis of hypoxic stress on steroidogenesis in fathead minnows, Pimephales promelas

This article presents a study in which an in silico genome-scale metabolic model of steroidogenesis is used to investigate the effects of hypoxic stress on steroid hormone productions in fish. This article introduces a powerful model for pathway analysis that can lend insights on the effects of various stressor scenarios on metabolic functions.
Date: May 15, 2012
Creator: Hala, David; Petersen, Lene H.; Martinovic, Dalma & Huggett, Duane B.
Object Type: Article
System: The UNT Digital Library
Convective oxygen transport during development in embryos of the snapping turtle Chelydra serpentina (open access)

Convective oxygen transport during development in embryos of the snapping turtle Chelydra serpentina

This article describes a study investigating the maturation of convective oxygen transport in embryos of the snapping turtle (Chelydra serpentina). Measurements included: mass, oxygen consumption, heart rate, blood oxygen content and affinity and blood flow distribution at 50%, 70% and 90% of the incubation period.
Date: September 24, 2018
Creator: Sartori, Marina R.; Kohl, Zachary F.; Taylor, Edwin W.; Abe, Augusto S. & Crossley, Dane A., II
Object Type: Article
System: The UNT Digital Library

Developmental phenotypic plasticity helps bridge stochastic weather events associated with climate change

This article posits that the frequently abrupt environmental changes accompanying much longer-term general climate change require consideration of the true nature of environmental change coupled with an expansion of focus to consider developmental phenotypic plasticity.
Date: May 10, 2018
Creator: Burggren, Warren W.
Object Type: Article
System: The UNT Digital Library
Pulmonary compliance and lung volume varies with ecomorphology in anuran amphibians: implications for ventilatory-assisted lymph flux (open access)

Pulmonary compliance and lung volume varies with ecomorphology in anuran amphibians: implications for ventilatory-assisted lymph flux

This article examining the correlation between pulmonary compliance, lung volume, and lymph flux rates in anurans. The findings of this article suggest that lymph mobilization capacity may explain some of the variation in pulmonary compliance and lung volume in anurans.
Date: October 1, 2011
Creator: Hedrick, Michael; Hillman, Stanley S.; Drewes, Robert C. & Withers, Philip C.
Object Type: Article
System: The UNT Digital Library
Xenopus and the art of oxygen maintenance (open access)

Xenopus and the art of oxygen maintenance

This column article discusses the impact of Robert Boutillier and Graham Shelton's 1986 Journal of Experimental Biology paper "Gas exchange, storage and transport in voluntarily diving Xenopus laevis."
Date: November 15, 2017
Creator: Tattersall, Glenn & Burggren, Warren W.
Object Type: Article
System: The UNT Digital Library
The yeast lipin orthologue Pah1p is important for biogenesis of lipid droplets (open access)

The yeast lipin orthologue Pah1p is important for biogenesis of lipid droplets

Article on yeast lipin orthologue Pah1p and its importance for biogenesis of lipid droplets.
Date: March 21, 2011
Creator: Adeyo, Oludotun; Horn, Patrick J.; Lee, SungKyung; Binns, Derk Douglas; Chandrahas, Anita; Chapman, Kent D. et al.
Object Type: Article
System: The UNT Digital Library
Activation of apoptosis in NAF-1-deficient human epithelial breast cancer cells (open access)

Activation of apoptosis in NAF-1-deficient human epithelial breast cancer cells

This article shows that small hairpin RNA-mediated suppresion of NAF-1 results in the activation of apoptosis in epithelial breast cancer cells and xenograft tumors.
Date: November 11, 2015
Creator: Holt, Sarah H.; Darash-Yahana, Merav; Sohn, Yang Sung; Song, Luhua; Karmi, Ola; Tamir, Sagi et al.
Object Type: Article
System: The UNT Digital Library
The membrane pacemaker hypothesis: novel tests during the ontogeny of endothermy (open access)

The membrane pacemaker hypothesis: novel tests during the ontogeny of endothermy

Article explores the ‘membrane pacemaker’ hypothesis which proposes a biochemical explanation for among-species variation in resting metabolism, based on the positive correlation between membrane docosahexaenoic acid (DHA) and metabolic rate. The authors tested this hypothesis using a novel model, altricial red-winged blackbird nestlings, predicting that the proportion of DHA in muscle and liver membranes should increase with the increasing metabolic rate of the nestling as it develops endothermy. In support of the membrane pacemaker hypothesis, DHA proportions increased in membranes from pectoralis muscle, muscle mitochondria and liver during post-hatch development. By contrast, elevated dietary DHA had no effect on resting metabolic rate, despite causing significant changes to membrane lipid composition.
Date: March 29, 2018
Creator: Price, Edwin R.; Sirsat, Tushar S.; Sirsat, Sarah K. G.; Curran, Thomas; Venables, Barney J. & Dzialowski, Edward M. (Edward Michael)
Object Type: Article
System: The UNT Digital Library
Parental stressor exposure simultaneously conveys both adaptive and maladaptive larval phenotypes through epigenetic inheritance in the zebrafish (Danio rerio) (open access)

Parental stressor exposure simultaneously conveys both adaptive and maladaptive larval phenotypes through epigenetic inheritance in the zebrafish (Danio rerio)

This article is a study using crude oil as an example of an environmental stressor in adult zebrafish. The offspring obtained were then assessed for transgenerational epigenetic transfer of oil-induced phenotypes. The authors conclude that epigenetic transgenerational inheritance can lead to an immediate and simultaneous inheritance of both beneficial and maladaptive traits in a large proportion of the F1 larvae. The adaptive responses may help fish populations survive when facing transient environmental stressors.
Date: September 5, 2019
Creator: Bautista, Naim M. & Burggren, Warren W.
Object Type: Article
System: The UNT Digital Library
Contribution of active atrial contraction to cardiac output in anesthetized American alligators (Alligator mississippiensis) (open access)

Contribution of active atrial contraction to cardiac output in anesthetized American alligators (Alligator mississippiensis)

Article describes study which investigated the importance of atrial contraction in filling of the ventricle in American alligators (Alligator mississippiensis) by bypassing both atria (with the use of ligatures to prevent atrial filling) and measuring the resultant effects on cardiac output in anesthetized animals.
Date: April 30, 2018
Creator: Williams, Joyce E.; Crossley, Janna; Elsey, Ruth M.; Wang, Tobias & Crossley, Dane A., II
Object Type: Article
System: The UNT Digital Library
Regulation of blood flow in the pulmonary and systemic circuits during submerged swimming in common snapping turtle (Chelydra serpentina) (open access)

Regulation of blood flow in the pulmonary and systemic circuits during submerged swimming in common snapping turtle (Chelydra serpentina)

This article is a study investigating the blood flow patterns and heart rate in surfacing and during graded, submerged swimming activity in common snapping turtles. The effects of beta-adrenergic and cholinergic receptor blockade on blood flow and heart rate during these activities are also studied.
Date: August 16, 2019
Creator: Reynolds Kirby, Amanda; Smith, Brandt R. & Crossley, Dane A., II
Object Type: Article
System: The UNT Digital Library
Beyond the wall: High-throughput quantification of plant soluble and cell-wall bound phenolics by liquid chromatography tandem mass spectrometry (open access)

Beyond the wall: High-throughput quantification of plant soluble and cell-wall bound phenolics by liquid chromatography tandem mass spectrometry

Article describes a study in which a novel high-throughput ultra-high performance liquid chromatography tandem mass spectrometry (UHPLC–MS/MS) method was established to quantify the levels of 19 flavonoids and 15 other phenolic compounds, including acids, aldehydes, and alcohols.
Date: December 26, 2018
Creator: Cocuron, Jean-Christophe; Casas, Maria Isabel; Yang, Fan & Grotewold, Erich
Object Type: Article
System: The UNT Digital Library
Cotton CENTRORADIALIS/TERMINAL FLOWER 1/SELF-PRUNING genes functionally diverged to differentially impact plant architecture (open access)

Cotton CENTRORADIALIS/TERMINAL FLOWER 1/SELF-PRUNING genes functionally diverged to differentially impact plant architecture

This article characterizes the CETS gene family from tetraploid cotton in order to understand the regulation of cotton architecture and exploit these principles to enhance crop productivity.
Date: September 10, 2018
Creator: Prewitt, Sarah F.; Ayre, Brian G. & McGarry, Roisin C.
Object Type: Article
System: The UNT Digital Library
ABA is required for the accumulation of APX1 and MBF1c during a combination of water deficit and heat stress (open access)

ABA is required for the accumulation of APX1 and MBF1c during a combination of water deficit and heat stress

This article studies the response of mutants impaired in ABA signalling (abi1-1) and biosynthesis (aba1-1) to a combination of water deficit and heat stress.
Date: July 18, 2016
Creator: Zandalinas, Sara I.; Balfagón, Damián; Arbona, Vicent; Gómez-Cadenas, Aurelio; Inupakutika, Madhuri A. & Mittler, Ron
Object Type: Article
System: The UNT Digital Library
Comparative cell-specific transcriptomics reveals differentiation of C₄ photosynthesis pathways in switchgrass and other C₄ lineages (open access)

Comparative cell-specific transcriptomics reveals differentiation of C₄ photosynthesis pathways in switchgrass and other C₄ lineages

This article provides an mesophyll and bundle sheath cell type-specific transcriptome data set from the monocot NAD-malic enzyme subtype switchgrass (Panicum virgatum).
Date: December 10, 2015
Creator: Rao, Xiaolan; Lu, Nan; Li, Guifen; Nakashima, Jin; Tang, Yuhong & Dixon, R. A.
Object Type: Article
System: The UNT Digital Library
Label-free shotgun proteomics and metabolite analysis reveal a significant metabolic shift during citrus fruit development (open access)

Label-free shotgun proteomics and metabolite analysis reveal a significant metabolic shift during citrus fruit development

Article discussing label-free shotgun proteomics and metabolite analysis revealing a significant metabolic shift during citrus fruit development.
Date: August 12, 2011
Creator: Katz, Ehud; Boo, Kyung Hwan; Kim, Ho Youn; Eigenheer, Richard A.; Phinney, Brett S.; Shulaev, Vladimir et al.
Object Type: Article
System: The UNT Digital Library
Embryonic developmental oxygen preconditions cardiovascular functional response to acute hypoxic exposure and maximal β-adrenergic stimulation of anesthetized juvenile American alligators (Alligator mississippiensis) (open access)

Embryonic developmental oxygen preconditions cardiovascular functional response to acute hypoxic exposure and maximal β-adrenergic stimulation of anesthetized juvenile American alligators (Alligator mississippiensis)

Article investigating the effect of embryonic hypoxia on the cardiovascular phenotype of 4-year-old American alligators (Alligator mississippiensis). The findings indicate that embryonic hypoxia in crocodilians alters the cardiovascular phenotype, changing the juvenile response to acute hypoxia and β-adrenergic stimulation.
Date: January 26, 2018
Creator: Smith, Brandt R.; Crossley, Janna; Elsey, Ruth M.; Hicks, James W. & Crossley, Dane A., II
Object Type: Article
System: The UNT Digital Library
Does the left aorta provide proton-rich blood to the gut when crocodilians digest a meal? (open access)

Does the left aorta provide proton-rich blood to the gut when crocodilians digest a meal?

Article measuring blood parameters in the left aortae and atria of crocodilians. The findings do not support the hypothesis that a R–L shunt serves to deliver CO2 for the gastrointestinal system after feeding in crocodilians.
Date: February 4, 2019
Creator: Conner, Justin L.; Crossley, Janna; Elsey, Ruth M.; Nelson, Derek; Wang, Tobias & Crossley, Dane A., II
Object Type: Article
System: The UNT Digital Library
The osmorespiratory compromise in the euryhaline killifish: water regulation during hypoxia (open access)

The osmorespiratory compromise in the euryhaline killifish: water regulation during hypoxia

Article studying water regulation during hypoxia in euryhaline killifish.
Date: September 24, 2019
Creator: Mager, Edward M.; Wood, Chris M.; Ruhr, Ilan M.; Schauer, Kevin L.; Wang, Yadong; McDonald, M. Danielle et al.
Object Type: Article
System: The UNT Digital Library
Enhanced seed production under prolonged heat stress conditions in Arabidopsis thaliana plants deficient in cytosolic ascorbate peroxidase 2 (open access)

Enhanced seed production under prolonged heat stress conditions in Arabidopsis thaliana plants deficient in cytosolic ascorbate peroxidase 2

Article discussing enhanced seed production under prolonged heat stress conditions in Arabidopsis thaliana plants deficient in cytosolic ascorbate peroxidase 2.
Date: November 26, 2012
Creator: Suzuki, Nobuhiro; Miller, Gad; Sejima, Hiroe; Harper, Jeffrey F. & Mittler, Ron
Object Type: Article
System: The UNT Digital Library
Sarcoplasmic reticulum Ca²⁺-ATPase (SERCA) activity during the transition to endothermy in an altricial bird (open access)

Sarcoplasmic reticulum Ca²⁺-ATPase (SERCA) activity during the transition to endothermy in an altricial bird

Article describes SERCA activity in the pectoralis muscle and heart ventricle of red-winged blackbird (Agelaius phoeniceus) nestlings, fledglings and adults. Additionally, using a diet manipulation, the authors tested the hypothesis that muscle SERCA activity is affected by dietary fatty acid composition, as has been shown in some previous studies.
Date: June 28, 2019
Creator: Price, Edwin R.; Sirsat, Tushar S.; Sirsat, Sarah K. G. & Dzialowski, Edward M. (Edward Michael)
Object Type: Article
System: The UNT Digital Library
Role of a chalcone isomerase-like protein in flavonoid biosynthesis in Arabidopsis thaliana (open access)

Role of a chalcone isomerase-like protein in flavonoid biosynthesis in Arabidopsis thaliana

This article identifies two chil mutants with a seed colour similar to that of wild-type Arabidopsis, but in sharp contrast to the characteristic transparent testa seed phenotype associated with other known flavonoid pathway genes.
Date: August 13, 2015
Creator: Jiang, Wenbo; Yin, Qinggang; Wu, Ranran; Zheng, Guangshun; Liu, Jinyue; Dixon, R. A. et al.
Object Type: Article
System: The UNT Digital Library