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Systematics of the Stonefly Tribe Suwalliini Surdick and Behavioral Studies of Selected Species in the Stonefly Families Chloroperlidae and Perlidae
The purpose of this study is to revise the genus Suwallia and to evaluate the potential taxonomic importance of adeagal and other genitalic characters, adult pigment patterns and egg characters. The revision concentrates on western North American species while providing coverage of all species, except Suwallia asiatica Zhiltzova and Lavanidova where only presumed females have been available for study. Communication and mate locating behaviors in adult stoneflies are critical for life cycle completion and species perpetuation. Drumming signals are known for numerous species of Plecoptera, but mate searching patterns and specifically, if or how vibrational communication is utilized for locating mates are virtually unknown for all stonefly species. I conducted field or laboratory studies of three species to elucidate mate searching patterns and how vibrational communication is used for locating mates. The species studied included a bushtopper, Suwallia pallidula (Banks); a ground scrambler, Claassenia sabulosa (Banks); and treetopper, Perlinella drymo (Newman). The "fly-tremulate-search". "rock to rock" and "fly-drum-search" search patterns exhibited by these species are described, as well as how vibrational communication is used for mate finding. Vibrational signal production by tremulation is reported for the first time in Suwallia, and for only the second time Plecoptera.
Date:
August 1997
Creator:
Alexander, Kevin D. (Kevin Dewayne)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Design of highly specific cytotoxins by using trans-splicing ribozymes
This article discusses the design of highly specific cytotoxins by using trans-splicing ribozymes.
Date:
March 30, 1999
Creator:
Ayre, Brian G.; Köhler, Uwe; Haseloff, Jim & Goodman, Howard M.
Object Type:
Article
System:
The UNT Digital Library
Medicago sativa cDNAs Encoding Chalcone Reductase
Article on Medicago sativa cDNAs encoding chalcone reductase.
Date:
March 1, 1995
Creator:
Ballance, G. Murray & Dixon, R. A.
Object Type:
Article
System:
The UNT Digital Library
Nucleotide Sequence of xylE from the TOL pDK1 Plasmid and Structural Comparison with Isofunctional Catechol-2,3-Dioxygenase Genes from TOL pWW0 and NAH7
Article on the nucleotide sequence of xylE from the TOL pDK1 plasmid and structural comparison with isofunctional catechol-2,3-dioxygenase genes from TOL pWW0 and NAH7.
Date:
April 1991
Creator:
Benjamin, Robert C.; Voss, John A. & Jiang, Shikun
Object Type:
Article
System:
The UNT Digital Library
Activation of an S6/H4 Kinase (PAK 65) from Human Placenta by Intramolecular and Intermolecular Autophosphorylation
Article proposing a model in which phosphorylation of sites 1 and 2 occurs sequentially. The model proposes that trypsin treatment of the inactive holoenzyme removes an inhibitory rac-binding domain which blocks MgATP access to the catalytic site. The pseudosubstrate domain at site 1 is autophosphorylated and subsequent bimolecular autophosphorylation at site 2 fully opens the catalytic site.
Date:
September 8, 1995
Creator:
Benner, Gretchen E.; Dennis, Patrick B. & Masaracchia, Ruthann A.
Object Type:
Article
System:
The UNT Digital Library
Features of the hmg 1 subfamily of genes encoding HMG-CoA reductase in potato
Article on the features of the hmg 1 subfamily of genes encoding HMG-CoA reductase in potato.
Date:
April 1, 1995
Creator:
Bhattacharyya, Madan Kumar; Paiva, Nancy L.; Dixon, R. A.; Korth, Kenneth L. & Stermer, Bruce A.
Object Type:
Article
System:
The UNT Digital Library
Advanced Molecular and Microbial Techniques: a Complete Laboratory Notebook
The purpose of this project is to produce a complete and thorough notebook that may be used to supplement laboratory coursework. Its intent is to be used primarily by the students to aid them in understanding background information and the proper laboratory procedures involved in various types of experiments. The laboratory notebook is a summation of all the experiments and procedures used in the six-credit hour Advanced Microbial and Molecular Biology (BIOL 5160) course offered during the summer semester at the University of North Texas. This class is a team taught effort by Professors O'Donovan and Kunz. The course is constructed as an intensive practice exercise to teach the student about gene mutations, biosynthetic pathways, preparation and analysis of plasmid DNA, and many other topics included in the notebook.
Date:
May 1998
Creator:
Brito-Rodriquez, Carmen Lydia
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
N-Acylethanolamines: Formation and Molecular Composition of a New Class of Plant Lipids
Article on N-acylethanolamines and the formation and molecular composition of a new class of plant lipids.
Date:
1998
Creator:
Chapman, Kent D.; Tripathy, Swati; Venables, Barney J. & Desouza, Arland D.
Object Type:
Article
System:
The UNT Digital Library
N-Acylethanolamines in Seeds. Quantification of Molecular Species and their Degradation upon Imbibition
Article on N-acylethanolamines in seeds and the quantification of molecular species and their degradation upon imbibition.
Date:
August 1999
Creator:
Chapman, Kent D.; Venables, Barney J.; Markovic, Robert; Blair, Raymond W. & Bettinger, Chris
Object Type:
Article
System:
The UNT Digital Library
Signal-transduction pathways controlling light-regulated development in Arabidopsis
Article on signal-transduction pathways controlling light-regulated development in Arabidopsis.
Date:
October 30, 1995
Creator:
Chory, Joanne; Cook, R. K.; Dixon, R. A.; Elich, Tedd; Li, H. M.; Lopez, E. et al.
Object Type:
Article
System:
The UNT Digital Library
Development of a Watershed Prioritization Strategy Using Remote Sensing and the Geographic Resource Analysis Support System. Case study: City of Carrollton, Texas
This study used a geographic information system (GIS) and an empirical pollutant load model to estimate average annual pollutant loads contained in storm water charges from the City of Carrollton, Texas. The Geographic Resource Analyses Support System (GRASS) was used to create a number of spatial data layers as input variables to a model that estimates loads in Kilograms/Hectare/Year, and Kilogram/Basin/Year. Average annual pollutant loads for twelve pollutants were derived from average annual rainfall/runoff volumes, coupled with Local Dallas/Fort Worth Metroplex storm water Event Mean Concentrations.
Date:
December 1996
Creator:
Coffey, Jeffery M. (Jeffery Morgan)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Activation of an S6 Kinase From Human Placenta by Autophosphorylation
Article describing a novel S6 kinase isolated from human placenta which autoactivates through autophosphorylation in vitro. The data supports the hypothesis that this previously uncharacterized S6 kinase belongs to a unique family of protein kinases which utilize autophosphorylation as part of their in vivo activation mechanism.
Date:
September 15, 1993
Creator:
Dennis, Patrick B. & Masaracchia, Ruthann A.
Object Type:
Article
System:
The UNT Digital Library
Stress-Induced Phenylpropanoid Metabolism
Article on stress-induced phenylpropanoid metabolism.
Date:
July 1, 1995
Creator:
Dixon, R. A. & Paiva, Nancy L.
Object Type:
Article
System:
The UNT Digital Library
The isoflavonoid phytoalexin pathway: From enzymes to genes to transcription factors
Article discussing enzymes to genes to transcription factors and the isoflavonoid phytoalexin pathway.
Date:
February 1, 1995
Creator:
Dixon, R. A.; Harrison, Maria J. & Paiva, Nancy L.
Object Type:
Article
System:
The UNT Digital Library
Engineering Disease Resistance in Plants: An Overview
This book chapter gives an overview of engineering disease resistance in plants.
Date:
1995
Creator:
Dixon, R. A.; Paiva, Nancy L. & Bhattacharyya, Madan Kumar
Object Type:
Book Chapter
System:
The UNT Digital Library
Pretreatment Optimization of Fiberglass Manufacturing Industrial Wastewater
Wastewater effluent produced in the fiberglass manufacturing industry contains a significant amount of total suspended solids. Environmental regulations require pretreatment of effluent before it is discharged to the municipal wastewater treatment plant. Chemical precipitation by coagulation and flocculation is the method of pretreatment used at the Vetrotex CertainTeed Corporation (VCT). A treatability study was conducted to determine conditions at which the VCT Wastewater Pretreatment Plant could operate to consistently achieve a total suspended solids concentration ≤ 200-mg/L. Jar tests varied pH, polymer dosage, and ferric sulfate dosage. Total suspended solids and turbidity were measured to evaluate treatment performance. The data were used to determine an optimum set of conditions under project guidelines. Of twelve polymers screened, BPL 594 was selected as the most effective polymer. For cost efficiency in the wastewater pretreatment operation, recommendations suggested that treatment chemical injection be electronically controlled according to turbidity of the treated effluent.
Date:
December 1998
Creator:
Dragoo, Ron
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Stress responses in alfalfa (Medicago sativa L.) XIX. Transcriptional activation of oxidative pentose phosphate pathway genes at the onset of the isoflavonoid phytoalexin response
Article on stress responses in alfalfa (Medicago sativa L.) XIX and transcriptional activation of oxidative pentose phosphate pathway genes at the onset of the isoflavonoid phytoalexin response.
Date:
August 1, 1995
Creator:
Fahrendorf, Theodor; Ni, Weiting; Shorrosh, Basil S. & Dixon, R. A.
Object Type:
Article
System:
The UNT Digital Library
Initiation and maintenance of callus and cell suspension cultures
Book chapter discussing the initiation and maintenance of callus and cell suspension cultures.
Date:
1995
Creator:
Franklin, C. I. & Dixon, R. A.
Object Type:
Book Chapter
System:
The UNT Digital Library
Cis elements and potential trans-acting factors for the developmental regulation of the Phaseolus vulgaris CHS15 promoter
Article on cis elements and potential trans-acting factors for the developmental regulation of the Phaseolus vulgaris CHS15 promoter.
Date:
September 1, 1995
Creator:
Hotter, Grant S.; Kooter, Jan; Dubery, Ian A.; Lamb, Christopher J.; Dixon, R. A. & Harrison, Maria J.
Object Type:
Article
System:
The UNT Digital Library
Accumulation of α-Keto Acids as Essential Components in Cyanide Assimilation by Pseudomonas fluorescens NCIMB 11764
Article on the accumulation of α-Keto acids as essential components in cyanide assimilation by Pseudomonas fluorescens NCIMB 11764.
Date:
November 1, 1998
Creator:
Kunz, Daniel A.; Chen, Jui-Lin & Pan, Guangliang
Object Type:
Article
System:
The UNT Digital Library
Utilization of Cyanide as a Nitrogenous Substrate by Pseudomonas fluorescens NCIMB 11764: Evidence for Multiple Pathways of Metabolic Conversion
Article on the utilization of cyanide as a nitrogenous substrate by Pseudomonas fluorescens NCIMB 11764 and evidence for multiple pathways of metabolic conversion.
Date:
June 1, 1992
Creator:
Kunz, Daniel A.; Nagappan, Olagappan; Silva-Avalos, Juan & Delong, George T.
Object Type:
Article
System:
The UNT Digital Library
CUE1: A Mesophyll Cell-Specific Positive Regulator of Light-Controlled Gene Expression in Arabidopsis
Article on CUE1 and a mesophyll cell-specific positive regulator of light-controlled gene expression in Arabidopsis.
Date:
October 1, 1995
Creator:
Li, Hsou-min; Culligan, Kevin M.; Dixon, R. A. & Chory, Joanne
Object Type:
Article
System:
The UNT Digital Library
Enzymes of B-Ring-Deoxy Flavonoid Biosynthesis in Elicited Cell Cultures of "Old Man" Cactus (Cephalocereus senilis)
Article on enzymes of b-ring-deoxy flavonoid biosynthesis in elicited cell cultures of "Old Man" cactus (Cephalocereus senilis).
Date:
August 20, 1995
Creator:
Liu, Qin; Bonness, Maureen S.; Liu, Ming; Seradge, Espanta; Dixon, R. A. & Mabry, Tom J.
Object Type:
Article
System:
The UNT Digital Library
Increased disease susceptibility of transgenic tobacco plants with suppressed levels of preformed phenylpropanoid products
Article on increased disease susceptibility of transgenic tobacco plants with suppressed levels of preformed phenylpropanoid products.
Date:
August 2, 1994
Creator:
Maher, Eileen A.; Bate, Nicholas J.; Ni, Weiting; Elkind, Yonatan; Dixon, R. A. & Lamb, Christopher J.
Object Type:
Article
System:
The UNT Digital Library