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9-Lipoxygenase Oxylipin Pathway in Plant Response to Biotic Stress (open access)

9-Lipoxygenase Oxylipin Pathway in Plant Response to Biotic Stress

The activity of plant 9-lipoxygenases (LOXs) influences the outcome of Arabidopsis thaliana interaction with pathogen and insects. Evidence provided here indicates that in Arabidopsis, 9-LOXs facilitate infestation by Myzus persicae, commonly known as the green peach aphid (GPA), a sap-sucking insect, and infection by the fungal pathogen Fusarium graminearum. in comparison to the wild-type plant, lox5 mutants, which are deficient in a 9-lipoxygenase, GPA population was smaller and the insect spent less time feeding from sieve elements and xylem, thus resulting in reduced water content and fecundity of GPA. LOX5 expression is induced rapidly in roots of GPA-infested plants. This increase in LOX5 expression is paralleled by an increase in LOX5-synthesized oxylipins in the root and petiole exudates of GPA-infested plants. Micrografting experiments demonstrated that GPA population size was smaller on plants in which the roots were of the lox5 mutant genotype. Exogenous treatment of lox5 mutant roots with 9-hydroxyoctadecanoic acid restored water content and population size of GPA on lox5 mutants. Together, these results suggest that LOX5 genotype in roots is critical for facilitating insect infestation of Arabidopsis. in Arabidopsis, 9-LOX function is also required for facilitating infection by F. graminearum, which is a leading cause of Fusarium head …
Date: May 2012
Creator: Nalam, Vamsi J.
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Bringing real world applications for wireless sensor networks into the classroom: Telemetric monitoring of water quality in an artificial stream [2012: Poster]

This poster discusses research on bringing real world applications for wireless sensor networks into the classroom and covers the use of a wireless sensor network (WSN) using the ZigBee protocol to remotely monitor an artificial aquatic ecosystem.
Date: 2012
Creator: Bunn, Zac; Guerrero, Jose; Wolf, Lori; Fu, Shengli; Hoeinghaus, David; Driver, Luke et al.
Object Type: Poster
System: The UNT Digital Library
Bringing real world applications for wireless sensor networks into the classroom: Telemetric monitoring of water quality in an artificial stream [2012] (open access)

Bringing real world applications for wireless sensor networks into the classroom: Telemetric monitoring of water quality in an artificial stream [2012]

This report discusses research on aquatic sensors and telemetric monitoring of water quality in an artificial stream with the use of a wireless sensor networks (WSN) using the ZigBee protocol to remotely monitor an artificial aquatic ecosystem. This research is part of Research Experiences for Teachers (RET) in Sensor Education, a National Science Foundation (NSF) funded grant project.
Date: 2012
Creator: Bunn, Zac; Guerrero, Jose; Wolf, Lori; Fu, Shengli; Hoeinghaus, David; Driver, Luke et al.
Object Type: Report
System: The UNT Digital Library
Comparative Immunity Analysis in Mycobacterium smegmatis and Mycobacteriophage (open access)

Comparative Immunity Analysis in Mycobacterium smegmatis and Mycobacteriophage

Paper describes research conducted with the goal of expanding the body of information related to mycobacteriophages and the relationship between those viruses and the bacteria that are immune to them.
Date: 2012
Creator: Schade, Amy E.
Object Type: Article
System: The UNT Digital Library
Stoperators in Cluster A Bacteriophages (open access)

Stoperators in Cluster A Bacteriophages

Paper discusses research which analyzed the genome of Mycobacteriophage ElTiger69, a subcluster A5 phage, to identify stoperator sequences.
Date: 2012
Creator: Gibbs, Zane A. & Salazar, Amanda
Object Type: Article
System: The UNT Digital Library
Characterization of an Isoflavonoid-Specific Prenyltransferase from Lupinus albus (open access)

Characterization of an Isoflavonoid-Specific Prenyltransferase from Lupinus albus

Article on the characterization of an isoflavonoid-specific prenyltransferase from Lupinus albus.
Date: May 2012
Creator: Shen, Guoan; Huhman, David; Lei, Zhentian; Snyder, John; Sumner, Lloyd W. & Dixon, R. A.
Object Type: Article
System: The UNT Digital Library